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AUD300C1000Advanced Ultraviolet

Flame Detector

User’s Manual

No. CP-SP-1141E

Thank you for purchasing the AUD300C 1000.

This manual contains information for ensuring correct use of the AUD300C 1000. It also provides necessary infor-mation for installation, maintenance, and troubleshooting.

This manual should be read by those who design and maintain devices that use the AUD300C1000.

Be sure to keep this manual nearby for handy reference.

NOTICEBe sure that the user receives this manual before the product is used.

Copying or duplicating this user’s manual in part or in whole is forbidden. The information and specifications in this manual are subject to change without notice.

Considerable effort has been made to ensure that this manual is free from inaccuracies and omissions. If you should find an error or omission, please contact the azbil Group.

In no event is Azbil Corporation liable to anyone for any indirect, special or consequential damages as a result of using this product.

© 2008-2014 Azbil Corporation All Rights Reserved.

i

Conventions Used in This Manual

n To prevent injury to the operator and others, and to prevent property damage, the following types of safety pre-cautions are indicated:

n In describing the product, this manual uses the icons and conventions listed below.

Use caution when handling the product.

The indicated action is prohibited.

Be sure to follow the indicated instructions.

Handling Precautions:Handling Precautions indicate items that the user should pay attention to when handling the AUD300C1000.

Note: Notes indicate information that might benefit the user.

This indicates the item or page that the user is requested to refer to.

(1), (2), (3): The numbers with the parenthesis indicate steps in a sequence or indicate corresponding parts in an explanation

>>: Indicates the result of an operation, details displayed on the personal computer or other devices, or the state of the device after operation.

WARNING Warnings are indicated when mishandling this product might result in death or serious injury.

CAUTION Cautions are indicated when mishandling this product might result in minor injury to the user, or physical damage to the product.

ii

Safety Precautions

Safety precautions are intended to ensure the safe and correct use of this product, to prevent injury to the operator and others, and to prevent damage to property. Be sure to observe these safety precautions. Please make sure you un-derstand the safety guidelines before reading the rest of this manual. The use of this product in a manner not specified by the manufacturer will impair its built-in safety features.

WARNING Do not combine this unit with a unit other than Azbil Corporation's flame safeguard control burner controller.

Make sure that this device does not detect ultraviolet rays other than those of the burner flame. If it responds to other ultraviolet rays, flame failure in the burner will not be detected. As a result, fuel will continue to be discharged, causing a very serious explosion hazard.

Before removing, mounting, or wiring the AUD300C, be sure to turn off the AUD300C and all con-nected devices. Failure to do so might cause electric shock.

Before wiring the AUD300C, be sure to turn the power OFF. Failure to do so might cause electric shock.

To prevent an explosion trouble, carry out the pilot turndown test firmly. If this unit detects a small pilot flame, which cannot ignite the main burner, it is determined that flame failure does not occur in the flame safeguard control even though the flame failure occurs in the main burner. Thus, the fuel is supplied continuously, causing an exposition accident, resulting in a serious hazard.

When performing the pilot turndown test repeatedly, stop the equipment completely every time the pilot turndown test is completed in order to completely discharge the unburnt gas or oil accu-mulated in the combustion chamber or flue.If the unburnt gas or oil is not discharged completely, this may cause an explosion accident.

Do not touch the AUD300C or the F or G terminals of the burner controller immediately after the power to the burner controller has been turned OFF. The F and G terminals are still electrically alive for 1 minute after the power has been turned OFF, causing an electric shock hazard.

When measuring the voltage between the F-terminal and G-terminal of this unit in the wiring check, do not touch any terminal by bare hand.Doing so may cause an electric shock.

iii

CAUTIONThe AUD300C is specially designed for intermittent burner operation (system is started and stopped once or more within 24 hours) and 24-hour continuous burner operation (combustion continues for 24 hours or longer). It must be used with a burner controller having a dynamic self-checking function.

Only authorized personnel who have the technical skill about the combustion equipment and flame safeguard control must carry out the mounting, wiring, inspection, adjustment, and maintenance work.

If this unit is operated in an atmosphere where any steam, smoke, oil mist, dust, and/or organic solvent exist that hinder the penetration of ultraviolet rays, take appropriate corrective measures.

When using multiple burners, mount this unit at a position where it detects the flame of only the burner to be monitored.

Carry out the wiring work in conformity with the specified standards.

Always separate the signal cables of this unit from the high voltage cables of the ignition transformer and power cables, and then always run the signal cables in a different conduit tube.

After the wiring work has been completed, always check that the wiring is correct. Incorrect wiring may cause damage or malfunction.

Only authorized personnel who have the technical skill about the combustion equipment and flame safeguard control must carry out the pilot turndown test.

Do not transport this unit with it mounted on the combustion equipment. The impact or vibration during transportation may cause this unit to malfunction.Before starting the transportation, remove this unit and put it in the specially designed packing box.

The service life of the tube unit and shutter unit components of the AUD300C is a maximum of 3 years. To ensure operational safety, be sure to replace them with new ones within this service life period. For replacement, use the AUD Maintenance Kit (AUD60A1000), which includes the tube and shutter units.

iv

The Role of This Manual

A total of 4 different manuals are available for the AUD300C1000, AUR300C. Read them as necessary for your spe-cific requirements. If a manual you require is not available, contact the azbil Group or its dealer.

AUD300C1000 Advanced Ultraviolet Flame Detector Manual No.CP-SP-1141E

This manualThe manual describes the mounting, wiring, maintenance and inspection, and troubleshooting when the AUD300C is built-into the combustion equipment.

AUR300C Advanced Ultraviolet Burner Controller Manual No.CP-SP-1142E

The personnel in charge of design, mounting, operation, and maintenance of the combustion equipment using the AUR300C must read this manual.The manual describes the mounting, wiring, trial-run adjustment, and mainte-nance and inspection of the AUR300C.

AUR350C Advanced Ultraviolet Burner Controller with Communications

Manual No.CP-SP-1175E

Personnel in charge of design, mounting, operation, and maintenance of combus-tion equipment using the AUR350C should read this manual.It describes the mounting, wiring, trial-run adjustment, maintenance, inspection of the AUR350C.

AUR450C Dynamic Self-Checking Burner Controller Manual No. CP-SP-1264E

This manual should be read by personnel using the AUR450C for the first time, those in charge of designing combustion equipment that uses the AUR450C or designing the hardware for mounting the device in a control panel, and personnel performing maintenance.

The manual gives an overview of the product, its mounting and wiring for con-nection to other equipment, its operation, trial-run adjustment, maintenance and inspection, and specifications.

v

Contents

Conventions Used in This ManualSafety PrecautionsThe Role of This Manual

Chapter 1. OVERVIEW

Overview n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Features n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Part names n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Model No. n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Chapter 2. MOUNTING

Before mounting this unit n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Monitoring of burner flame n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Mounting position n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Mounting posture n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Mounting of monitoring pipe n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Mounting procedure n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Chapter 3. WIRING

Wiring diagram n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Checking of wiring n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Chapter 4. ADJUSTMENT

Before measurement of flame voltage n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Measurement of flame voltage n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Pilot turndown test n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Ignition spark response test n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Firmly mounting of monitoring pipe n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Final inspection n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Chapter 5. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Chapter 6. MAINTENANCE AND INSPECTION

Periodic inspection n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15Replacement of the shutter unit and tube unit using the AUD Maintenance Kit n . . .16

vi

Chapter 7. SPECIFICATION

Specification n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19Dimensions n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

1

Chapter 1. OVERVIEW

Overview The AUD300C1000 Advanced Ultraviolet Flame Detector (hereafter referred to as the AUD300C) is designed to detect ultraviolet radiation from an oil or gas burner flame, for use with both batch and continuous operation. The AUD300C is used in combination with a dedicated burner controller. By means of the built-in shutter, any malfunction of the UV flame detector or burner controller is detected by the continuous self-checking (Dynamic Self-Check) function, ensuring highly reliable combustion safety control.

Features • Maintenance parts such as the tube unit and shutter unit can be handled as a

single unit. This ensures easy replacement and maintenance work.

• As for a flame sensor for the self-check, this unit is compact and lightweight. This ensures free burner mounting.

• The operating ambient temperature is 100 °C (up to 120 °C during flame detec-tion) and the protection structure is IP66. This ensures excellent environment-proof performance.

• The vertical mounting is possible and the maximum wiring distance is 200 m. This ensures flexible construction work.

Part names Main unit

Mounting nut

Flange unit81446924-001 or -101

Lead wires

Cover mounting screws (4)

Cover AUD Maintenance KitAUD60A1000

Model No.

Model No. Lens type Additional

AUD300C1000 Standard NoneAUD300C100D Inspection reportAUD300C100T Tropicalization treatmentAUD300C100Y Traceability certificateAUD300C100DT Inspection report + tropicalization treatmentAUD300C100YT Traceability certificate + tropicalization treatmentAUD300C1100 Condenser NoneAUD300C110D Inspection reportAUD300C110T Tropicalization treatmentAUD300C110Y Traceability certificateAUD300C110DT Inspection report + tropicalization treatmentAUD300C110YT Traceability certificate + tropicalization treatment

Chapter 1. OVERVIEW

2

Certification

Gas Appliance Directive (CE)*: 0063BS1427(with AUR450C and Q241A104) 0063CN6671(with RX-R4_C series)

UL: File No. MH27717CSA: Master Report LR 078402

* CE marking appears only on the controller.

Note. Certification does not apply to AUD300C1_ 0Y and AUD300C1_0YT.

Combined burner controller

Model No. Description

RX-R40, RX-R44, RX-R46 Burner Control ModuleAUR300C, AUR350C Advanced Ultraviolet Burner ControllerAUR450C Dynamic Self-Checking Burner Controller

Maintenance/optional parts

Model No. Description

AUD60A1000 AUD Maintenance Kit *1

81446924-001 Flange unit (Standard type)81446924-101 Flange unit (Condenser type)81447495-001 Nut packing81447509-001 Bushing 1 × 3/4FSP136A100 Analog flame meter

*1 AUD Maintenance Kit AUD60A1000 The AUD Maintenance Kit incorporates the tube and shutter units, including expend-ables like the expiration date label*2 and the O-ring used for sealing between the flange and cover of the AUD.

Terminals for shutterdriver connection(White lead wire)

Tube unit

Shutter unit

LabelThermo-label

G terminal (Yellow lead wire)F terminal (Blue lead wire)

Tube unit retaining screws (2)

Position of the expiration date label*2 Expiration date label

3

WARNINGBefore removing, mounting, or wiring the AUD300C, be sure to turn off the AUD300C and all con-nected devices. Failure to do so might cause electric shock.

Make sure that this device does not detect ultraviolet rays other than those of the burner flame. If it responds to other ultraviolet rays, flame failure in the burner will not be detected. As a result, fuel will continue to be discharged, causing a very serious explosion hazard.

CAUTIONOnly authorized personnel who have the technical skill about the combustion equipment and flame safeguard control must carry out the mounting, wiring, inspection, adjustment, and mainte-nance work.

If this unit is operated in an atmosphere where any steam, smoke, oil mist, dust, and/or organic sol-vent exist that hinder the penetration of ultraviolet rays, take appropriate corrective measures.

When using multiple burners, mount this unit at a position where it detects the flame of only the burner to be monitored.

Before mounting this unit n• To mount this unit correctly, thoroughly read the instruction manuals published

by burner, boiler, and/or other equipment manufacturers. Make the proper mounting plan while referring to such instruction manuals.

• It is necessary that this unit actually monitors the flame. As long as the overall layout and temperature around the burner and other limitations permit, mount this unit as close to the flame as possible. As this unit is mounted closer to the burner nozzle, the detection amount of the ultraviolet ray radiation will increase.

• Mount this unit at a position far from the ignition transformer. Additionally, mount the ignition transformer as close to the burner as possible, and then ground it firmly.

Monitoring of burner flame nMonitoring of only pilot flame (continuous pilot or intermittent pilot)

The main burner must be ignited firmly with the minimum pilot flame that this unit can detect. Therefore, throttle the pilot fuel manual valve until the main burner is ignited barely. Mount this unit under these conditions so that the unit monitors only the top of the pilot flame. Put the monitoring area as close to the top of the flame as possible so that the unit monitors the pilot flame along with the axis of the pilot flame.

Chapter 2. MOUNTING

Chapter 2. MOUNTING

4

Monitoring of both pilot flame and main flame (continuous pilot or intermittent pilot)

Mount this unit so that the unit monitors an area where the pilot flame intersects the main flame.

Monitoring of only main flame (interrupted pilot)

Mount this unit so that it monitors the most stable part of the main flame under any conditions (low combustion, high combustion, etc.). In special cases, the use of two units is recommended in order to separately monitor high combustion and low combustion.

Monitoring of pilot flame and main flame individually (continuous pilot or intermittent pilot)

Mount the AUD300C so that the sensor for monitoring the main flame does not mistakenly detect the pilot flame. If the sensor for the main flame detects the pilot flame, the fuel supply will not be shut down if the main burner fails, since the flame failure will not be detectable.

Multiple burners existing in one combustion chamber

Mount this unit on each burner and carry out the mounting work so that the unit does not detect the flame of other burner incorrectly.Additionally, the tube unit of this unit may produce the electrical discharge phe-nomenon inside the tube. This electrical discharge may emit the ultraviolet rays from the tube. Therefore, when using multiple units, adjust their positions so that the ultraviolet ray radiation from other tube unit is not detected.

Redundant system (duplicate monitoring)

To increase the reliability of the system and avoid unnecessary shut-off as much as possible, this unit is combined with the burner controller and the redundant system is constructed so that two sets monitor the flame of one burner.

If either flame detector does not output the flame signal or if any dummy signal ex-ists, the alarm is given, but the system continues the combustion.If two burner controllers detect the flame failure at the same time, the system must be shut-off.This avoids any unnecessary shut-off of the system caused by this unit, burner con-troller, or oscillating flame. The highly reliable flame monitor can be achieved.

Mounting position nDetermine an optimal mounting position of this unit while carefully observing the following items:

Temperature

Mount this unit in a place where the ambient temperature during operation is -20 to +100 °C (up to 120 °C during flame detection).

Chapter 2. MOUNTING

5

Handling Precautions If the above temperature range is not observed, this may cause the tube unit •or shutter unit assembled to this unit to malfunction or unnecessary shut-off.

When this unit is not being used to detect a flame, do not allow the ambi-•ent temperature to exceed 100 °C. While power is being supplied, an ambient temperature over 100 °C causes breakdown of the insulation on the internal coil and, when the unit resumes operation (flame detection), faulty shutter operation (failure to open).

If the actual temperature may exceed the operating temperature range, •put an appropriate thermal insulation plate between the combustion chamber and this unit or carry out the air purging to put the temperature within the operating temperature range.

Vibration

Mountthisunitinaplacewheretheaccelerationis4.9m/s2orless.

Handling PrecautionsThe vibration may cause the service life of the tube unit or shutter unit to •be shortened, improper operation, or malfunction.

Outdoors

Whenusingthisunitinanoutdoorplace,mountappropriateroofsoreavestoavoidrainwater.

Handling PrecautionsThe surface color of the case may change due to the influence of sunshine •or other causes. However, this will not affect the functioning of the product.

Mounting posture Mountthisdevicewiththeopeningfortheelectricalwiringconduitfacingdown-ward,alignedinaverticalplane.

Mounting pipe

Mounting nut

Conduit tube connection port

Front side

Vertical plane mounting

Do not tiltOK

Do not mount horizontally

Do not mount upside-down

Chapter 2. MOUNTING

6

The allowable range of the mounting posture is that the upper limit is 90° (conduit tube port becomes horizontal) and the lower limit is 45°.

Vertical plane

Upper limit 90°

Lower limit 45°

Horizontal plane

Side

90°

45°

Handling Precautions Mount this unit at an appropriate angle so that it monitors the burner • from the upper slanted position. If this unit is mounted so that it moni-tors the burner from the lower slanted position or horizontal position, dust or soot may accumulate on the monitoring window or in the moni-toring pipe. This may block the ultraviolet rays, causing the flame not to be detected.

Mounting of monitoring pipe nMaterials of monitoring pipe

Use a monitoring pipe with a black inside wall. If a pipe with the stainless steel or galvanized inside wall is used, diffused reflection of the ultraviolet rays occurs in-side the pipe, causing a malfunction.

Size of monitoring pipe

To detect the ultraviolet rays radiation of the flame at its optimal level, it is neces-sary to widen the light receiving area of this unit. If a recommended flame voltage of 2.0 V or more cannot be kept, make the monitoring pipe thicker to receive a suf-ficient amount of ultraviolet rays.

• Use the monitoring pipe as thick as possible and connect the pipe to this unit with the reducing socket.

• Make the length of the monitoring pipe as short as possible. However, always keep the operating ambient temperature within 100 °C (up to 120 °C during flame detection).

Chapter 2. MOUNTING

7

Mounting space

Keep a sufficient space to allow easy maintenance and inspection, and service work.Monitoring pipe,

1" or more(Use 2" to 3" pipe.) Reducing socket

AUD300C

Connection nipple (1")Weld this

part

Burner

Plate

Tapered monitoring hole *

* If the air purging is needed, tees are used to supply the air.

Furnace wall

Air

*Tees

Handling Precautions Mount this unit so that its monitoring direction intersects the flame axis • at an as small angle as possible. This ensures a wide intersection area of the monitoring area between the flame and this unit. Thus, the detection amount of ultraviolet ray radiation becomes large.

Flame surface area monitored is small.

Unburnt fuel

Flame surface area monitored is large and much ultraviolet radiation is detected.

Burner

Good sighting position(low angle sighting)

Poor sighting position

Temporary welding for positioning of monitoring pipe

(1) Prepare the monitoring pipe and make the mounting hole. Make the mounting hole for the monitoring pipe at the selected monitoring pipe mounting position. Perform the screw threading of one end of the monitoring pipe and cut the monitoring pipe to a desired length so that its length is as short as possible.

Chapter 2. MOUNTING

8

(2) Weld the monitoring pipe temporarily. Weld the monitoring pipe temporarily to the plate of the combustion chamber, such as boiler. At this time, do not weld the monitoring pipe completely since the inspection and adjustment are required until the flame is detected properly.

Weld these parts temporarily.

PlateFurnace wall

(Refractory material)

Monitoring pipe

(3) Carry out the air purging of the monitoring pipe. The air purging of the inside of the monitoring pipe is useful to cool this unit and keep the monitoring area clean. In particular, if the ambient temperature of this unit exceeds 120 °C, the cooling, such as air purging is needed.

• If the inside of the furnace is a type of induction, make an air purging hole in the monitoring pipe.

• If the forced type furnace is used, connect an air purging supply pipe.

Mounting procedure When mounting the AUD300C on a monitoring pipe, proceed as follows:

Check item

File the monitoring pipe in advance to eliminate burrs and protrusions.

Mounting

(1) Hold the unit securely with one hand to prevent it from rotating.

(2) Tighten the mounting nut approximately 4 turns with the other hand until the unit is held securely in place.

(3) Make sure the unit is properly aligned in the vertical plane when viewed from the front. ( Mounting posture (on page 5))

Handling Precautions Be sure the AUD300C is properly aligned vertically when seen from the • front. If not, the shutter in the shutter unit may be damaged or malfunction.

If this unit is not mounted correctly, this may cause the shutter of the • shutter unit to be damaged or malfunction.

File any burrs or protrusions from the monitoring pipe. If the packing in • the mounting nut is damaged, any chance of leakage may be caused.

Do not use a tool such as pipe wrench when • tightening the mounting nut. Excessive torque by a tool could damage the packing and compromise the seal.

Do not adjust the mounting pose by forcibly • holding the unit or wiring pipe. Failure to do so may damage the packing and compromise the seal.

9


When measuring the voltage between the F-terminal and G-terminal of this unit in the wiring check, do not touch any terminal by bare hand.Doing so may cause an electric shock.

CAUTIONOnly authorized personnel who have the technical skill about the combustion equipment and flame safeguard control must carry out the mounting, wiring, inspection, adjustment, and maintenance work.

Always separate the signal cables of this unit from the high voltage cables of the ignition transformer and power cables, and then always run the signal cables in a different conduit tube.

Wiring diagram n

White

Shutter output terminalWhite

Yellow(G)

(F)Blue

AUD300C

When performing the wiring work, put all lead wires used for the connection with the burner controller in the conduit tube or conduit box. Additionally, run these lead wires with they separated from other power cables.

Handling PrecautionsNever run the lead wires to this unit in the same conduit tube contain-• ing the high voltage cables, such as power cables or ignition transformer cables.

Put the high voltage cables of the ignition transformer and the ground-• ing cables in the same conduit tube. At the same time, ground one end of this conduit tube firmly. In particular, this caution must be observed strictly when using an automotive spark plug.

If the surge of the ignition transformer adversely affects this unit, ground • both ends of the conduit tube between this unit and combustion safety control unit or change the cable running route.

Chapter 3. WIRING

Chapter 3. WIRING

10

Checking of wiring nBefore applying the voltage to this unit, check that the wiring is correct.

Procedures

(1) Remove the cover by unscrewing the four (4) mounting screws that secure it to the AUD300C1000. Remove 2 tube unit retaining screws on the rear of the tube unit. Hold the rear of the tube unit and gently raise it upward to remove it.

(2) Turn ON the power to the burner controller.(3) Measure the DC voltage between the F-terminal and G-terminal with a multi-

meter or digital voltmeter.(4) Connect the positive probe to the G-terminal (yellow lead wire) and the nega-

tive probe to the F-terminal (blue lead wire).

Positive probe (red)

Negative probe (black)

F-terminalblue lead wire

G-terminalyellow lead wire

Terminal Probe Voltage

F −160 to 220 Vdc

G +

>> If a voltage of 160 Vdc to 220 Vdc is output, it is determined that the wiring work has been performed correctly. If the measured DC voltage is a negative value, the wiring to the F-terminal and G-terminal is connected reversely.

(5) Next, measure the DC voltage between the shutter voltage S1-terminal and S2-terminal (both are white lead wires).

Handling PrecautionsThe polarities of the S1-terminal and S2-terminal are not specified. When • measuring the voltage with an analog multi-meter, set a large voltage range so that the indication needle does not deflect over the negative scale to check the polarities. After that, measure the shutter voltage.

>> If the indication needle swings in a range of 15 Vdc to 24 Vdc, it is determined that the wiring is connected correctly.* If the indication needle of the multi-meter shows 24 Vdc constantly or if it shows 0 V, the wiring may be incorrect. * If a flame exists, the shutter voltage swings within a range of 0 Vdc to 24 Vdc.

(6) Mount the tube unit 1 min. or longer after the power to the burner controller has been turned OFF.

(7) Attach the cover to the AUD300C, and secure it with the 4 mounting screws.

11

Before measurement of flame voltage nBefore measuring the flame voltage, check the operation of this unit through the flame voltage output terminals of the burner controller.

Model No. Flame voltage output terminals

AUR300CAUR350C

Terminal 9 (+)Terminal10 (−)

AUR450C Positive terminal, Negative terminal

(1) Connect an analog flame meter (FSP136A100) to the flame voltage output ter-minals of the burner controller.

(2) Light a lighter in front of the ultraviolet ray receiving part of this unit to check that the voltage is output correctly.

Handling PrecautionsWhen using an open flame, check that there is no flammable gas around this •unit.

Measurement of flame voltage nIf both pilot flame and main flame exist, measure each flame voltage. Additionally, measure the flame voltage in the maximum combustion and mini-mum combustion states.

(1) Mount the monitoring pipe on this unit temporarily.

(2) Start the combustion of the burner.

(3) To determine an optimal monitoring position, measure the flame voltage of the burner controller with the analog flame meter (FSP136A100) while moving the monitoring pipe position little by little in order to find a position where as highly stable voltage as possible is shown.

Recommended flame voltage Inspection item

Stable 2.0 Vdc or more(The flame voltage may fluctuate in a range of 0.1 to 0.3 V synchro-nized with the shutter operation of this unit.)

Check that the flame is monitored correctly.Check that the light receiving lens of this unit is not contaminated.Check that foreign matter, such as soot is not caught in the monitoring pipe.

Handling PrecautionsWhen the flame voltage exceeds 4 Vdc, provide an orifice ring into the flange •unit to limit the quantity of ultraviolet rays. Excess quantity of ultraviolet rays might cause malfunction by the diffused reflection of ultraviolet rays coming into the tube unit even when the shutter is closed.



12

Pilot turndown test nThis test is intended to check that the flame is correctly carried over to the main burner when this unit detects the pilot flame if the gas pressure and air pressure are changed to their worst conditions.

WARNINGTo prevent an explosion trouble, carry out the pilot turndown test firmly. If this unit detects a small pilot flame, which cannot ignite the main burner, it is determined that flame failure does not occur in the flame safeguard control even though the flame failure occurs in the main burner. Thus, the fuel is supplied continuously, causing an exposition accident, resulting in a serious hazard.

When performing the pilot turndown test repeatedly, stop the equipment completely every time the pilot turndown test is completed in order to completely discharge the unburnt gas or oil accumu-lated in the combustion chamber or flue.If the unburnt gas or oil is not discharged completely, this may cause an explosion accident.


Only authorized personnel who have the technical skill about the combustion equipment and flame safeguard control must carry out the pilot turndown test.

For details about how to carry out the pilot turndown test, refer to the user's man-ual for burner controller combined with this unit, as well as the instruction manuals published by equipment manufacturers.


13

Ignition spark response test n

WARNINGMake sure that this device does not detect ultraviolet rays other than those of the burner flame. If it responds to other ultraviolet rays, flame failure in the burner will not be detected. As a result, fuel will continue to be discharged, causing a very serious explosion hazard.

Procedures

(1) Close the manual shut-off valves of the pilot burner and main burner.

(2) Operate the burner to perform the ignition operation. The ignition spark is then started. At this time, check that the flame relay (K2) of the burner control-ler is not excited. (K2 is the flame relay for the AUR300C/350C, and K6 is the flame relay for the AUR450C.)

(3) If the flame relay is excited, adjust the monitoring point of this unit again to avoid the influence of the ignition spark and its reflection.

Handling PrecautionsThe following shows various sources other than flame, that may activate • this unit. Check that the unit operation is not influenced under all operat-ing conditions.

Examples:

Ultraviolet ray source

Scorching furnace wall with a temperature of 1371 °C or more

Ignition transformer and welding arc spark (lightning)

Gas laser

Sunlamp

Disinfecting lamp, ultraviolet ray radiation lamp, fluorescent lamp

Strong flash light (toward UV sensor)

Gamma-ray and X-ray source

X-ray diffraction and gamma-ray analysis measurement equipment

Electron microscope

X-ray camera

High voltage vacuum switch

High voltage capacitor

Radioactive isotope

Other sources producing ultraviolet rays, gamma-rays, and X-rays

Firmly mounting of monitoring pipe n(1) When the equipment is operated properly with the specified flame voltage out-

put after all adjustments have been completed correctly, turn OFF the power to the equipment, remove this unit, and weld the monitoring pipe firmly.

(2) Mount this unit on the monitoring pipe firmly and perform the final wiring completely.

Final inspection nTo control the burner properly, perform at least one cycle operation of the equip-ment to check that all control operations function correctly.

14


Do not touch the AUD300C or the F or G terminals of the burner controller immediately after the power to the burner controller has been turned OFF.The F and G terminals are still electrically alive for 1 minute after the power has been turned OFF, causing an electric shock hazard.

CAUTION Only authorized personnel who have the technical skill about the combustion equipment and flame safeguard control must carry out the mounting, wiring, inspection, adjustment, and maintenance work.

Tools and parts to be prepared

• AnalogflamemeterFSP136A100• Fordetailsaboutreplacementparts,

Maintenance parts and optional parts (on page 2).

Trouble checking procedures

(1)Checktheoperatingconditions.

Check item Contents

Power voltage • Check that the power switch is turned ON correctly. • Check for loose power terminal. • Check that the voltage is within the allowable range.

Wiring • Check that the terminal No. is correct. • Check for faulty wiring. • Check the insulation for deterioration or damage.

Ambient temperature • Check that the temperature is +100 °C or less. (up to 120 °C during flame detection)

Ambient humidity • Check that the ambient humidity is 90 %RH or less. • Check that no dew condensation occurs inside the unit.

(2)Checktheunitaccordingtotheflowchart.

Check the ame voltage.*1

Correct

Zero

OK

Check the ame voltage.*1 Adjust the monitoring

position and/or burner.

OK

NG

NG: No good

Small

Replace the tube unit.

*4

Check the wiring and replace the burner controller.

NG

OK

NO (closed)

YES (open)

• Clean the monitoring window.• Clean the inside of the monitoring pipe.Remove the tube unit.

Correct

Does the shutter open

when power is supplied to the burner

controller?

Check the voltage between the F and G terminals.*2

Replace the shutter unit.

*4

Check the wiring and replace the burner controller.

NG

OK

Check the shutter voltage.*3

*1 Normal when 2.0 Vdc or more*2 Normal when 160 to 220 Vdc*3 Normal when uctuating between 0 or 15 to 24 Vdc*4 When replacing the tube unit, replace the shutter unit

also. When replacing the shutter unit, replace the tube unit also.

Chapter 5. TROUBLESHOOTING

15


Do not touch the AUD300C or the F or G terminals of the burner controller immediately after the power to the burner controller has been turned OFF.The F and G terminals are still electrically alive for 1 minute after the power has been turned OFF, causing an electric shock hazard.


The service life of the tube unit and shutter unit components of the AUD300C is a maximum of 3 years. To ensure operational safety, be sure to replace them with new ones within this service life period. For replacement, use the AUD Maintenance Kit (AUD60A1000), which includes the tube and shutter units.

Periodic inspection n(1) Turn OFF the power to the burner controller.

(2) Clean the monitoring window and monitoring pipe periodically. Remove this unit from the monitoring pipe, and clean the inside of the monitor-ing pipe and/or the lens with a cloth rag.

(3) To check the function of the tube unit, perform the safety shut-off test periodi-cally. For details about safety shut-off test, refer to;

the user's manual for the AUR300C, No. CP-SP-1142E. user's manual for the AUR350C, No. CP-SP-1175E. user's manual for the AUR450C, No. CP-SP-1264E.

(4) Adjust the burner so that it is operated at its optimal operating level recom-mended by the burner manufacturer.

Frequency of maintenance and inspection

Inspection contents Inspection frequency

Contamination of monitoring window and monitoring pipe, or loose screw

Once a month or more

Safety shut-off test Once a month or moreMeasurement of flame voltage Once a month or morePilot turn down test Once a year or more

Handling Precautions If the burner shut-off operation may cause a serious accident, perform the •inspection more frequently.

If the burner manufacturer provides specific instructions about the mainte-•nance and inspection, always strictly observe them.



16

Replacement of the shutter unit and tube unit using the AUD Maintenance Kit

CAUTIONThe service life of the tube unit and shutter unit components of the AUD300C is a maximum of 3 years. To ensure operational safety, be sure to replace them with new ones within this service life period. For replacement, use the AUD Maintenance Kit (AUD60A1000), which includes the tube and shutter units.

AUD Maintenance Kit

The AUD Maintenance Kit incorporates the tube and shutter units, includingexpendables like the O-ring.

Handling PrecautionsWhen doing replacement work, do not jar the tube unit. •Handle it with care.

After finishing the replacement work and before reattaching the cover, put •the O-ring on the flange unit carefully. Failure to do so may compromise the seal.

Removing of shutter unit and tube unit

(1) Turn OFF the power.

(2) After 1 min. has elapsed, remove 4 cover mounting screws to detach the cover.

(3) Remove the 4 terminal screws to disconnect the lead wires (2 white, 1 blue, and 1 yellow) from the shutter unit.

(4) Hold the rear of the tube unit and gently raise it upward to remove it. Insert the top of a new tube unit into the round hole in the upper portion of the shutter unit and push-down the rear to mount it.

(5) Remove the O-ring from the flange unit.

G terminal (yellow lead wire)

F terminal (blue lead wire)

Tube unit

Shutter unitretaining screws (2) O-ring

Shutter unit


17

Mounting the shutter unit onto the flange unit

(1) Fit the O-ring that is included in the AUD Maintenance Kit onto the flange unit.

(2) Loosen the 2 screws holding the tube unit of the new AUD Maintenance Kit and then remove the unit, grasping it by the back of the unit.

Terminals for shutterdriver connection(White lead wire)

Tube unit

Shutter unit

LabelThermo-label

G terminal (Yellow lead wire)F terminal (Blue lead wire)

Tube unit retaining screws (2)

(3) After removing the tube unit, mount the shutter unit only on the flange unit using the 2 retaining screws.

Handling PrecautionsBefore mounting, insert the lead wires (blue and yellow) into the slits • of the shutter unit. When mounting the unit onto the flange unit, hold the white lead wires under the shutter unit so that they stay in the cable guide groove.

(4) Be sure to connect the lead wires to the terminals on the shutter unit correctly.

Handling PrecautionsConnect the blue lead wire to terminal F and the yellow lead wire to ter-• minal G. Connect the two wires so that they match the F and G polarity indication label on the shutter unit.

Wiring check

(1) Turn ON the power to the burner controller.

(2) Measure the DC voltage between terminals F and G with a multimeter or digital voltmeter.

(3) Connect the positive probe to terminal G (yellow lead wire) and the negative probe to terminal F (blue lead wire).

Terminal Tester Probe Voltage

F −160 to 220 Vdc

G +

>> If the voltage is between 160 and 220 Vdc, the wiring is correct. If the measured DC voltage is a negative value, the F and G wires are reversed.

(4) Next, measure the DC voltage between the S1 and S2 shutter voltage terminals (white wires).


18

Handling PrecautionsThe polarities of the S1-terminal and S2-terminal are not specified. When • measuring the voltage with an analog multi-meter, set a large voltage range so that the indication needle does not deflect over the negative scale to check the polarities. After that, measure the shutter voltage.

>> If the indication needle swings in a range of 15 Vdc to 24 Vdc, it is determined that the wiring is connected correctly. If the indication needle of the multi-meter shows 24 Vdc constantly or if it shows 0 V, the wiring may be incorrect.

Mounting the tube unit and cover

(1) Turn OFF the power to the burner controller.

(2) After 1 minute or more, mount the tube unit onto the shutter unit, holding the back of the tube unit, and tighten the 2 retaining screws to secure the unit.

(3) Make sure that the O-ring has not come off the flange unit.

(4) Attach the cover, and tighten the 4 mounting screws to secure it.

Handling PrecautionsThe tube unit has specific polarities. Make these polarities matched with •the polarity indication label F, G at the upper portion of the shutter unit and mount it correctly. Additionally, a height difference is provided on the shutter unit corresponding to the tube unit. The tube unit so designed that it cannot be mounted reversely. However, do not attempt to forcibly mount the tube unit in the reverse direction.

If the thermo-label provided on the tube unit has turned black (no longer •white), there is the possibility that its temperature has exceeded the allow-able operating temperature range. When the ambient temperature around the advanced UV sensor in operation is highly excessive, cool the unit using the air purging. The thermo-label should be regarded as a reference only. Always confirm the correct ambient temperature with a thermometer.

When mounting the cover, mount the O-ring of the flange unit firmly. Failure •to do so may cause the sealing ability to lower.

Tighten the terminal screws and mounting screws with a tightening torque of •0.7 N·m.

Expiration date label

Affix the expiration date label supplied with the AUD Maintenance Kit to the cover as shown below.

Position of the expiration date labelExpiration date label

19

Specification

Item Description

Applicable types of flame *1 City gas, Natural gas, Propane gas, Kerosene, Heavy oil, Coke oven gas, Hydrogen, Chlorine, Ammonia, Naphtha, Ethylene, etc.

Shutter voltage Approx. 24 Vdc (supplied from burner controller)Self-checking cycle Approx. 80 cycles/minInsulation resistance Between flange unit mounting conduit and F-terminal (or blue lead wire),

between flange unit mounting conduit and G-terminal (or yellow lead wire), between flange unit mounting conduit and S1-terminal (or white lead wire), between flange unit mounting conduit and S2-terminal (or white lead wire): 50 MΩ min. by 500 Vdc megger at the above each location. (However, the tube unit must be removed.)

Dielectric strength Between flange unit mounting conduit and F-terminal (or blue lead wire), between flange unit mounting conduit and G-terminal (or yellow lead wire), between flange unit mounting conduit and S1-terminal (or white lead wire), between flange unit mounting conduit and S2-terminal (or white lead wire): 1500 Vac for 1 min or 1800 Vac for 1 sec at the above each location. (However, the tube unit must be removed.)

Ambient temperature –20 to +100 °C During flame detection, the maximum allowable ambient temperature is +120 °C.

Ambient storage temperature –20 to +70 °CAmbient storage humidity 90 % RH at 40 °C max. (without condensation)Vibration resistance 4.9 m/s2 max., 10 to 55 Hz for 2 hours each in X, Y and Z directionsImpact resistance 300 m/s2 in vertical and horizontal directionsPressure resistance for flange 350 kPaProtection IP66 (except a conduit tube connection port)Mounting posture –45 to +90° (in vertical direction)Mounting G1 (at the mounting section for monitoring pipe)Lead wires AWG18 heat resistant silicone cables, with applox. 1.8 m color lead wires (4 pcs)Electric wire pipe mounting conduit

1/2-14NPSM

Flame signal wire requirements and extension distance

Requirements: 600 V vinyl insulation wires, IV wires with 2.0 mm2, 200 m max.

Materials Main body: Heat resistant resin (PPS + PPE + GF40) Mounting section: Aluminum

Main body color Purple (equivalent to DIC257)Mass Approx. 630 gExpiration date of tube unit and shutter unit

3 years

Certification Gas Appliance Directive(CE)*2: 0063BS1427(with AUR450C and Q241A104) 0063CN6671(with RX-R4_C series)

UL: File No. MH27717CSA: Master Report LR 078402Note. Certification does not apply to AUD300C1_ 0Y and AUD300C1_0YT.

*1 For applications using coke oven gas, hydrogen, chlorine, ammonia, naphtha, ethylene, etc., in which the burner structure may impose restrictions on the mounting of the flame detector, it is necessary to check that flame monitor-ing is reliable.

*2 CE marking appears only on the controller.



20

Dimensions n Unit: mm

54.5

23.7

Conduit tube connection port 1/2-14NPSM

153.5140.0

(104.6)24.5

Parallelpipethread

G1

88

38.6

dia

.

(54.

5)

39.5

88

(67.

5)20

.5

Amb. Temp. -20~ +100C˚DATECODE XXXX S/N XXXX

MADE IN JAPAN

AUD300C

Printed Edn. Revised pages Description

Apr. 2003 1 Overall revision. 4th ed = 9th Jp ed.July 2004 2 19 Mass 450 g → 630 gOct. 2006 3 1

2

4

5

6

891011131619

Model No. changed AUD10C to AUD10C1000, AUD300C to AUD300C1000, AUD50A to AUD50A1000.List of model No. added.Cover 81446925-001 and Analog flame meter FSP136A100 added. Monitoring of pilot flame and main flame individually added.Description of Redundant system changed.Description of Temperature changed. Outdoors added.Description of Mounting posture changed.Description of Handling precautions changed.Figure of mounting space changed.Description of Handling precautions changed.Description of Mounting Procedure changed. Wiring diagram; description and figure changed. Checking of wiring; description changed. Before measurement of flame voltage; description changed. Procedures; description added. Replacement of table unit; figure changed.Description of self-checking cycle changed.

June 2010 4 Overall revision.July 2011 5 iii

127915, 1620

9th item deleted.Model Nos. added, Model No. table moved from page 2 to page 1.Standards compliance and Combined burner controller sections added.Text of sighting position figure revised.First WARNING revised.CAUTION revised.Description of self-checking cycle changed.

Oct. 2011 6 1320

Table in Handling Precautions changed.Description portion of Specification_ambient temperature changed.

Apr. 2012 7 Company name changed.Oct. 2012 8 1

26 to 9

Change in names of parts.Table for Maintenance/optional parts was changed.Change in mounting method.

Dec. 2012 9 219

Notes *1 and *2 were added to “Standards compliance.”Self-checking cycle was changed from 75 to 80.*2 was changed.

Aug. 2013 10 12

19End of a book

Model No. Model No. (AUD300C100YT, AUD300C110YT) added. Certification changed. Maintenance/optional parts was changed. (81409780-001→81447509-001) Specification “Certification” was changed.AAS-511A-014-02

Dec. 2014 11 19End of a book

Specification “Lead wires” was changed. (2.4 m→applox. 1.8 m)AAS-511A-014-04

Revision History of CP-SP-1141E

Terms and ConditionsWe would like to express our appreciation for your purchase and use of Azbil Corporation's products. You are required to acknowledge and agree upon the following terms and conditions for your purchase of Azbil Corporation's products (system products, field instruments, control valves, and control products), unless otherwise stated in any separate document, including, without limitation, estimation sheets, written agreements, catalogs, specifications and instruction manuals.

1. Warranty period and warranty scope1.1 Warranty period

Azbil Corporation's products shall be warranted for one (1) year from the date of your purchase of the said products or the delivery of the said products to a place designated by you.

1.2 Warranty scopeIn the event that Azbil Corporation's product has any failure attributable to azbil during the aforementioned warranty period, Azbil Corporation shall, without charge, deliver a replacement for the said product to the place where you purchased, or repair the said product and deliver it to the aforementioned place. Notwithstanding the foregoing, any failure falling under one of the following shall not be covered under this warranty:

(1) Failure caused by your improper use of azbil product (noncompliance with conditions, environment of use, precautions, etc. set forth in catalogs, specifications, instruction manuals, etc.);

(2) Failure caused for other reasons than Azbil Corporation's product;(3) Failure caused by any modification or repair made by any person other than Azbil Corporation or Azbil

Corporation's subcontractors; (4) Failure caused by your use of Azbil Corporation's product in a manner not conforming to the intended usage of

that product; (5) Failure that the state-of-the-art at the time of Azbil Corporation's shipment did not allow Azbil Corporation to

predict; or (6) Failure that arose from any reason not attributable to Azbil Corporation, including, without limitation, acts of God,

disasters, and actions taken by a third party. Please note that the term “warranty” as used herein refers to equipment-only-warranty, and Azbil Corporation shall not be liable for any damages, including direct, indirect, special, incidental or consequential damages in connection with or arising out of Azbil Corporation's products.

2. Ascertainment of suitability You are required to ascertain the suitability of Azbil Corporation's product in case of your use of the same with your machinery, equipment, etc. (hereinafter referred to as “Equipment”) on your own responsibility, taking the following matters into consideration:

(1) Regulations and standards or laws that your Equipment is to comply with.(2) Examples of application described in any documents provided by Azbil Corporation are for your reference

purpose only, and you are required to check the functions and safety of your Equipment prior to your use. (3) Measures to be taken to secure the required level of the reliability and safety of your Equipment in your use

Although azbil is constantly making efforts to improve the quality and reliability of Azbil Corporation's products, there exists a possibility that parts and machinery may break down. You are required to provide your Equipment with safety design such as fool-proof design, *1 and fail-safe design*2 (anti-flame propagation design, etc.), whereby preventing any occurrence of physical injuries, fires, significant damage, and so forth. Furthermore, fault avoidance, *3 fault tolerance,*4 or the like should be incorporated so that the said Equipment can satisfy the level of reliability and safety required for your use.

*1. A design that is safe even if the user makes an error. *2. A design that is safe even if the device fails. *3. Avoidance of device failure by using highly reliable components, etc. *4. The use of redundancy.

3. Precautions and restrictions on application Azbil Corporation's products other than those explicitly specified as applicable (e.g. azbil Limit Switch For Nuclear Energy) shall not be used in a nuclear energy controlled area (radiation controlled area). Any Azbil Corporation's products shall not be used for/with medical equipment. The products are for industrial use. Do not allow general consumers to install or use any Azbil Corporation's product. However, azbil products can be incorporated into products used by general consumers. If you intend to use a product for that purpose, please contact one of our sales representatives. In addition, you are required to conduct a consultation with our sales representative and understand detail specifications, cautions for operation, and so forth by reference to catalogs, specifications, instruction manual, etc. in case that you intend to use azbil product for any purposes specified in (1) through (6) below. Moreover, you are required to provide your Equipment with fool-proof design, fail-safe design, anti-flame propagation design, fault avoidance, fault tolerance, and other kinds of protection/safety circuit design on your own responsibility to ensure reliability and safety, whereby preventing problems caused by failure or nonconformity.

(1) For use under such conditions or in such environments as not stated in technical documents, including catalogs, specification, and instruction manuals

(2) For use of specific purposes, such as: * Nuclear energy/radiation related facilities

[For use outside nuclear energy controlled areas] [For use of Azbil Corporation's Limit Switch For Nuclear Energy]

* Machinery or equipment for space/sea bottom * Transportation equipment [Railway, aircraft, vessels, vehicle equipment, etc.] * Antidisaster/crime-prevention equipment

* Burning appliances * Electrothermal equipment * Amusement facilities * Facilities/applications associated directly with billing

(3) Supply systems such as electricity/gas/water supply systems, large-scale communication systems, and traffic/air traffic control systems requiring high reliability

(4) Facilities that are to comply with regulations of governmental/public agencies or specific industries (5) Machinery or equipment that may affect human lives, human bodies or properties (6) Other machinery or equipment equivalent to those set forth in items (1) to (5) above which require high reliability

and safety

4. Precautions against long-term use Use of Azbil Corporation's products, including switches, which contain electronic components, over a prolonged period may degrade insulation or increase contact-resistance and may result in heat generation or any other similar problem causing such product or switch to develop safety hazards such as smoking, ignition, and electrification.Although acceleration of the above situation varies depending on the conditions or environment of use of the products, you are required not to use any Azbil Corporation's products for a period exceeding ten (10) years unless otherwise stated in specifications or instruction manuals.

5. Recommendation for renewalMechanical components, such as relays and switches, used for Azbil Corporation's products will reach the end of their life due to wear by repetitious open/close operations. In addition, electronic components such as electrolytic capacitors will reach the end of their life due to aged deterioration based on the conditions or environment in which such electronic components are used.Although acceleration of the above situation varies depending on the conditions or environment of use, the number of open/close operations of relays, etc. as prescribed in specifications or instruction manuals, or depending on the design margin of your machine or equipment, you are required to renew any Azbil Corporation's products every 5 to 10 years unless otherwise specified in specifications or instruction manuals.System products, field instru ments (sensors such as pressure/flow/level sensors, regulating valves, etc.) will reach the end of their life due to aged deterioration of parts.For those parts that will reach the end of their life due to aged deterioration, recommended replacement cycles are prescribed. You are required to replace parts based on such recommended replacement cycles.

6. Other precautionsPrior to your use of Azbil Corporation's products, you are required to understand and comply with specifications (e.g., conditions and environment of use), precautions, warnings/cautions/notices as set forth in the technical documents prepared for individual Azbil Corporation's products, such as catalogs, specifications, and instruction manuals to ensure the quality, reliability, and safety of those products.

7. Changes to specifications Please note that the descriptions contained in any documents provided by azbil are subject to change without notice for improvement or for any other reason.For inquires or information on specifications as you may need to check, please contact our branch offices or sales offices, or your local sales agents.

8. Discontinuance of the supply of products/partsPlease note that the production of any Azbil Corporation's product may be discontinued without notice. For repairable products, we will, in principle, undertake repairs for five (5) years after the discontinuance of those products. In some cases, however, we cannot undertake such repairs for reasons, such as the absence of repair parts.For system products, field instruments, we may not be able to undertake parts replacement for similar reasons.

9. Scope of services Prices of Azbil Corporation's products do not include any charges for services such as engineer dispatch service. Accordingly, a separate fee will be charged in any of the following cases:

(1) Installation, adjustment, guidance, and attendance at a test run (2) Maintenance, inspection, adjustment, and repair(3) Technical guidance and technical education (4) Special test or special inspection of a product under the conditions specified by you

Please note that we cannot provide any services as set forth above in a nuclear energy controlled area (radiation controlled area) or at a place where the level of exposure to radiation is equivalent to that in a nuclear energy controlled area.

AAS-511A-014-04

(09)Specifications are subject to change without notice.

1-12-2 Kawana, FujisawaKanagawa 251-8522 Japan

URL: http://www.azbil.com1st edition: Apr. 2003

11th edition: Dec. 2014 (F)

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