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AMS2750 E

Changes from AMS2750D

Feb 2013

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2 HONEYWELL - CONFIDENTIAL File Number

Overview on Changes

• AMS2750 Specification Updated to Revision E- New Revision of Spec – 2750E revised July 2012;

- Replaces Spec - 2750D (revised Sept 2005)

- Updated to include wireless sensor technology

- Added requirements to document “ As found” instrumentcalibration and offset condit ions (procedural impacts)

- Calibration changes l ike check min. of 6 simulated sensor @min. 4 points, calibrated for each type input/output used

- Provides more details on Temperature Uniformity SurveyTesting (TUS) procedures, furnace repairs and modifications,data collection requirements, survey frequency, number andlocation of sensors, Pass/Fail requirements

- Added Refrigeration & Quench Furnace class to tables

General Update

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Standards

• AMS2750E Pyrometry

- Covers Temperature Sensor, Instrumentation, Thermalprocessing equipment, System Accuracy Tests, TemperatureUniformity Survey requirements

- Ensures that parts or raw material are heat treated inaccordance to applicable specifications

• AS7102 Nadcap Requirements for Heat Treating

- Documents the requirements for the accreditation program- Industry managed program for continuous improvement

Standard industry audit program for special processes

Focuses on overall supplier performance

Auditing overseen by PRI (Performance Review Institute)

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AMS 2750E Section 2 Definitions Changes

- Par. 2.2.15 DIGITAL INSTRUMENT:

Clarification was added to definition of digital instruments withdigital temperature display and with temperature trace on

paper chart:

An instrument that presents process measurements in a digital

(numeric) display format. Typical examples are mechanical

recorders with digital displays, digital indicators, controllers withdigital displays, etc. In the case of a recorder with digi tal

temperature display and a recorder trace (line) the record

(recorder trace) is analog while the display is digi tal. A

recorder trace on a paper chart is an analog record.

- Par. 2.2.25 INTERVAL

Interval definition was added to AMS2750E to avoid confusion

by some suppliers.

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AMS 2750E Section 2 Definitions Changes

- Par. 2.2.27 LOAD SENSORS :

Clarif ication regarding correct usage of load sensors/thermocouples. (in rev. D it was not included in the load

sensor definit ion but stated in par. 3.1.8.1):

Sensors that are attached to or in contact with product ion

material, a representation of production material, or are buried

in the load of production material and which supply temperaturedata of the production material to process instrumentation.

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AMS 2750E Temp Sensor Changes

AMS2750E

Section

Reference AMS2750E Change Comment

3.1.1.5.1 Allows use of Wireless transmitters as alternative to

extension wire

New

3.1.2.2.1 Certs for sensors now require “Date of Calibration” New

3.1.2.2.6 Correction factor for each calibration temperature

traceable to NIST or other recognized National Standard.

Alternatively, deviation (error) for each calibration

temperature may be listed. The certificate shall clearly

state if it shows deviation or correction factor.

Added this

3.1.2.5.2 Extrapolation of calibration correction factors above the

highest calibration temperature and below the lowest

calibration temperature is prohibited by any calibration

source except NIST or other National Standards

calibration agency.

Added “except NIST or other

National Standards calibration

agency.”

• Temperature Sensor - Section 3.1 Changes

- This section deals with the requirements for the temperaturesensors used in these heat treatment processes

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• Temperature Sensor - Section 3.1 ChangesAMS2750E

SectionReference

AMS2750E Change Comment

3.1.2.6 When calibrating thermocouples rolls, AMS2750 Rev. E

requires sampling from both ends regardless of roll

length. (1000 feet/305 meters limit from AMS2750D for

one end sampling only is no longer acceptable). Other

requirements for rolls calibration remains the same.

Added “Rolls shall be sampled at

both ends of the roll”

3.1.3.5 Nonexpendable base metal TUS TCs used below 1200F

(650C) do not need to be permanently installed on TUS

rack between its usage like it was stated in Rev. D

TUS T/C’s can be reinserted for each

TUS through ports in the furnace;

need to be used at the same location

and depth of insertion.

3.1.5.2 Added time of 90 days

“Expendable base metal load sensors may be used for

up to 90 calendar days after first use and for no morethan 30 uses”

Previously was just 30 uses

3.1.5.3 Changed the requirement on the life of nonexpendable

base metal load thermocouples

2200 °F (1205 °C) to 2299 °F (1260 °C) –

3 months or 10 uses

1801 °F (980 °C) to 2199 °F (1205 °C) –

3 months or 90 uses

Previously for 2200˚Fwas just 10

uses, no time period specified

1801˚F was 30 days or 90 uses;

now 90 days or 90 uses

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• Temperature Sensor - Section 3.1 Changes

AMS2750ESection


Figure 1 Added Table of Reuse and Recalibration of Test & Load

Sensors

Summarizes Reuse & Recalibration

Primarily for clarification

Figure 1 Sensor - Secondary Standard – Max. Permitted Error

changes

Increased max. permitted error

Figure 1 Sensor – System Accuracy Test –

• Max. Permitted Error changes

• Recalibration permited if Types E & K are used below

500F (260C) only (Note 11)

Increased max. permitted error

3.4.5.2.1 Type B TCs are allowed as resident SAT TCs fortemperatures above 500F (260C)

Type B T/C’s were not allowed byRev D.

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AMS 2750E InstrumentsControlling, Monitoring or Recording Instruments

AMS2750E

Section


3.2.1 AMS2750D allowed to use instruments meeting

requirements of AMS2750C (but not meeting rev D

requirements) if these instruments were purchased

before September 2006 (one year after rev. D issue). If

you have such instruments, now you have 3 years you

upgrade your equipment to meet Rev. E requirements

Exemption will run out for older

instrumentation, now have to

upgrade within 3 years of issuing of

AMS2750E (issued July 2012)

3.2.1.1.1 Temperature resolution requirements for chart

recorders shall be in accordance with Table 4. (See next

slide for table)

New requirements for refrigeration &

quench system recorders added

3.2.1.1.2 Process Recorder Print and Chart Speeds shall be in

accordance with Table 5. (See next slide for table)Added metric speeds and updated

notes

• Instrumentation - Section 3.2 Changes

- This section deals with the requirements of theinstrumentation used in these heat treatment processes

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New - requriements for refrigeration

and quench system recorders were

not defined in rev D.

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AMS2750E

SectionReference


3.2.1.5.4 Calibration of secondary standard instruments and field

test instruments shall be performed in accordance with

the manufacturer’s instructions. These instruments shall

be tested at a minimum of 6 simulated sensor inputs.

These shall include the minimum and maximum of the

operating range used for test or calibration and a

minimum of 4 points in between either representing

areas of normal operation or spaced at approximately

equal intervals across the range in which the instrument

is used for test or calibration.

New requirements regarding

secondary standard instruments and

field instruments calibration

3.2.1.5.4.1 The instrument shall be calibrated for each type of input

and/or output used (e.g., each thermocouple type in useand for mV, mA, etc. if the instrument is used for these

methods).


secondary standard instruments andfield instruments calibration

3.2.1.5.4.2 Calibration shall be performed on each channel in use

that can be altered or adjusted individually, or on each

group of channels that can be altered or adjusted as a

group. It is recommended that channels not in use be

blocked or tagged to stop unintentional use.


secondary standard instruments and

field instruments calibration

• Secondary Standard & Field Inst. Calibration Changes

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AMS2750E

SectionReference


3.2.5.5 Calibration shall be performed on instrument(s) defined

under the Instrument Type column in Table 3.

Regardless of the calibration procedure used, it shall

comply with the requirements of Table 3. Prior to any

instrument alteration or calibration, document the

instrument(s) “as-found condition”

Not documenting “as found”

condition is often an audit failure

point during Nadcap audits

3.2.5.5.1 Check as-found condition at a minimum of three

simulated sensor inputs which represent the minimum,

maximum and at least one point in the middle 1/3rd of

the furnace Qualified Operating Temperature Range. If

necessary, calibrate the instrument in accordance with

the manufacturer’s instructions.


calibration of controlling, monitoring

and recording instruments

3.2.5.5.2 Following any adjustments test the instrument at a

minimum of three simulated sensor inputs which

represent the minimum, maximum and at least one

point in the middle 1/3 rd of the furnace Qualified

Operating Temperature Range to document the as-left

condition.


calibration of controlling, monitoring

and recording instruments

• Calibration Controlling/Monitoring/Recording Inst. Changes

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Table 3 – Instruments and Instrument Calibration –updates compared to rev. D:

AMS2750E Instruments and Instrument Calibration

Table 3 Notes

(1) Instrum ents of equiv alent or greater accuracy are acceptable.

(2) Comparison checks among the cells shall be performed monthly.

(3) Cells having temperature c ontro l o f ±0.02 °F (±0.01 °C).

(4) Furnace class 1 & 2 instr uments shall have a minimum sensitivi ty of 1

°F (1 °C). Furnace class 3 through 6

instru ments shall have a minim um sensi tivity o f 3 °F (2 °C).

(5) Controlling, monitoring and recording instrument calibration interval

shall be:

Digital Electromechanical

Furnace Class 1 - Monthly Furnace Class 1 - Monthly

Furnace Class 2 - Quarterly Furnace Class 2 - Monthly

Furnace Class 3 - Quarterly Furnace Class 3 - Quarterly

Furnace Class 4 - Quarterly Furnace Class 4 - Quarterly

Furnace Class 5 - Semiannually Furnace Class 5 - QuarterlyFurnace Class 6 - Semiannually Furnace Class 6 – Quarterly

Refrigeration and quenchant monitor (digital or analog) – semiannually.

Exception: If the quenchant/refrigerator sensor is connected to a channel

in a furnace process recorder, the interval for c alibration of that channel

in the instrument shall be the same interval as for the other channels of

the instrument.

(6) Furnace Control, Recording, Monitoring or Data Acquisition

Instruments.

(7) Field Test instruments meeting accuracy requirements of secondary

standards may be used to calib rate SAT and TUS test instruments in t he

field.

(8) Over-temperature instruments used solely for fu rnace over

temperature protection do not need to be calibrated.

(9) NIST or o ther equiv alent National Standard.

(10) Includes wireless transmission systems

(11) Instruments are operated in a controlled environment and are not

used on the shop floor.

New

New

New

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AMS2750E

SectionReference


3.2.5.5.3 Chart recorder (circular and strip) speed(s) shall be

verified annually and shall be accurate within 3 minutes

per hour. Result of chart speed measurement shall be

documented.

Added Chart Speed documentation

requirement

3.2.5.5.5 For furnaces used only at a single temperature, the

calibration of controlling, monitoring or recording

instruments may either be performed per

manufacturer’s instructions at the single temperature

of use, or with a minimum of 3 points: the temperature

of use, and two (or more) points bracketing the

temperature of use.

New requirement

3.2.5.5.6 Wireless equipment which performs the analog to

digital conversion at the furnace and transmits a digitalsignal to the recorder are allowed, but require use of

the complete wireless system (wireless sender,

wireless receiver and associated controlling,

monitoring and recording instruments) during the

calibration process (See 3.1.1.5.1).

New requirement

• Calibration Controlling/Monitoring/Recording Inst. Changes

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AMS2750E

SectionReference


3.2.7.1 An “electronic record” is any combination of text,

graphics, data, audio, pictorial, or other information

representation in digital form that is created, modified,

maintained, archived, retrieved, or distributed by a

computer system. When using a system (furnace

control, recording, monitoring or data acquisition) that

creates electronic records, systems purchased after

Sept 2006 or any electronic record created after 2015

(3 years after release of this revision) shall meet the

following requirements detailed in section 3.2.7.1.3

Added additional requirement,

3.2.7.1.3.1, to provide a means of

providing evidence that the electronic

record was reviewed.

This can be accomplished in the

Trendview recorder by the mark on

chart feature.

3.2.7.1.1.3.1 The system shall be capable of providing evidence the

record was reviewed – such as by recording anelectronic review, or a method of printing the record for

a physical marking indicating review.

New requirement

This can be accomplished in theTrendview recorder by the mark on

chart feature.

• Electronic Records Changes

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AMS 2750E Instruments - Thermal Processing

AMS2750E

SectionReference


3.3.2 Table 3 The temperature indicated by the control sensor in each

control zone shall be recorded by a recording

instrument.

Alternatively, the recording instrument may be

connected to a second sensor contained in the same

sheath or holder as the control sensor, and separatedfrom the control sensor by no more than 0.38 inch (10

mm).

For Instrument Types A, B, C, D

Added alternative means of

connecting a control sensor, this was

not allowed in AMS 2750 D

3.3.2 Table 3 At least 1 recording load sensor in each zone

During production in multi-zone furnaces, empty zones

(i.e., no material is placed in or intrudes into the zone)

do not require a load sensor. However, a notation

must be made to the furnace load record that the zone

was entirely empty.

For Instrument Types A, B, C, D

Added clarification for multi-zone

furnaces

• Furnace Instrumentation Type Classification Changes

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AMS2750E

SectionReference


3.3.4 Additional Sensors - There is no limit on additional

recording or load sensors in any control zone, but their

use must be defined in controlled operating instructions.

Added clarification for use of

additional sensors

3.3.5 High and low temperature sensors, when required

(instrument types A and C – See Figure 3), may be

inserted in heat sinks (See 2.2.24), positioned at thehigh and low temperature locations of the control zone

based on the most recent TUS when heat sinks of

similar configuration are used during the TUS.

Improvement to aid the heat treater

Also refer to Section 2.2.24

definition of a heat sink

3.3.6 For multiple zone vacuum furnaces with 225 cubic feet

(6.4 m3) or less in working volume that are instrumented

with Types A, B, or C instrumentation, it is acceptable to

treat the furnace working volume as a single work zone

for the purpose of locating high and low temperaturerecording thermocouples and determining the number of

load thermocouples required regardless of the number of

control thermocouples or instruments within the vacuum

furnace. The minimum sensors required are shown in

Figure 4. Each furnace shall have over-temperature

protection in the work zone.

Added clarification multi-zone

furnaces

• Furnace Instrumentation Type Changes

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AMS2750E

Section

Reference AMS2750E Change

Comment

3.3.3.1 Refrigeration equipment shall have a temperature

controller. This temperature controller requirement is not

applicable to liquid nitrogen, dry ice and dry ice/liquid-

cooled containers. All refrigeration equipment shall be

equipped with a temperature recorder where time-at-

temperature (minimum or maximum) is required. The

above requirements are not applicable during

transportation of materials at sub-ambient temperatures.

AMS2750D did not require to have

temperature recording instrument

for quench systems that were set up

before AMS2750D

3.3.3.2 Quench systems used for heat treatments that include a

quenchant temperature requirement (minimum,

maximum or both) shall be equipped with a recording

instrument. Existing installations installed prior to

September 2005 do not require recording instruments

until 3 years after the release of this revision.

AMS2750D did not require a

temperature recording instrument

for quench systems that were set up

before (Sept. 2005). If you still have

a quench system without a

recording instrument, you have 3

years to upgrade per AMS2750E to

include a recorder.

• Instrumentation for Refrigeration & Quench Systems

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AMS 2750E – System Accuracy Test

• System Accuracy Test Changes – Section 3.4

- Defines what equipment requires SAT, the frequency, waiverconditions and the Test Procedure to use

- The SAT is an on-site comparison of the instrument/leadwire/sensor readings or values, with the readings or values of a

calibrated test instrument/leadwire/sensor to determine if themeasured temperature deviations are within applicable

requirements. The SAT is performed to assure the accuracy of

the furnace control and recording system in each control zone.

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AMS2750E

SectionReference


3.4.2.1 Two sensors in each control zone are Type B, N, R, or S. “B” Type T/C added

3.4.5.2.1 Resident SAT thermocouples shall be restricted to Type B,

N, R or S at temperatures exceeding 500 °F

(260 °C) and shall be nonexpendable if exposed to

temperatures above 1000 °F (538 °C).

“B” Type T/C added

• System Accuracy Test Changes

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AMS2750 rev. E updates Tables 6 and 7 for SAT requirements:

New

In rev D there was

mistake and

Monthly/Quarterly

was stated

New


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AMS 2750E T U if it S

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AMS 2750E – Temp Uniformity Survey

AMS2750E

SectionReference


3.5.13.2 Once data collection begins, temperature data shall be

recorded from all TUS sensors at a frequency of at least

one set of all readings every 2 minutes for the duration of

the survey. Data from furnace sensors required by the

applicable instrumentation type (See 3.3) shall be

recorded as follows. (Sensors whose only function is over-temperature protection do not need to be recorded.)

No change with this part of the

requirement

If the normal frequency of temperature data recording in

production is 2 minutes or less, or is continuous as in the

case of analog recorders, the data shall be documented

in the normal production format. If the normal

frequency of temperature data recording in production is

greater than 2 minutes, the recording frequency interval

during the TUS shall not exceed 6 minutes.

Added statement for those

processes that record at less than 2

minutes

• TUS Data Collection Changes

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AMS 2750E – Temp Uniformity Survey Records

HONEYWELL - CONFIDENTIAL

AMS2750 rev. E par. 3.5.21: Temperature Uniformity Survey Report3.5.21.1 The following items shall be included in the temperature uniformity survey report:

a. Furnace identification name or number

b. Survey temperatures

c. TUS sensor and location identification including a detailed diagram, description or photograph(s)

of any load or rack used

d. Time and temperature data from all recorded sensors required for furnace

inst rumentation type for all zones tested (3.5.13.3.2)

e. Correction factors for TUS sensors at each survey temperature.

f. As found and as left TUS offsets (if used in production)

g. Corrected or uncorrected readings of all TUS sensors at each survey temperature. Readings shall

be identified as corrected or uncorrected.

h. Testing company identification (if not performed in-house)

i. Signature for the testing company (if not performed in-house)

j. Identification of technician performing survey

k. Survey start date and time

l. Survey end date and timem. Survey test instrument identification number

n. Indication of test pass or test fail

o. When required, documentation of furnace survey sensor failures (See 3.5.16)

p. Summary of corrected plus and minus TUS readings at each test temperature after stabilization.

q. Quality Organization approval.

New

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AMS 2750E – Temp Uniformity Survey Records

HONEYWELL - CONFIDENTIAL

AMS2750 rev. E par. 3.5.21: Temperature Uniformity

Survey Report – (cont inued)

3.5.21.2 Although not a required part of the uniformity survey report, the following shall beaccessible on site:

a. Control instrument tuning parameters

b. TUS sensor calibration report

c. Control and recording sensor calibration report

d. Diagrams of control and recording sensors, load and TUS sensor locations in

three dimensional space.

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AMS 2750E I t t

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AMS 2750E Instruments3.2.4 Controll ing, Monitoring or Recording Instruments

Requirements for Controlling, Monitoring or Recording Instruments

AMS 2750E Ref. Requirement Comment

Readability

3.2.3.1

At least one recording and/or

control ling instrument for each zone

shall have a minimum readability of

1°F or 1°C

Honeywell Recorders (X-Series Paperless,

DR4500, DPR180, DPR250), HC900 OI and

Controllers (UDC2500, UDC3200 & UDC3500)

have a readabil ity o f at least 1°F or 1°C, most

read down to 0.1°.

Installation

3.2.3.2

Installation shall conform to

manufacturer’s recommendation

Manuals provide detailed information on

proper installation for each product .

Offsets

3.2.3.4

If offsets are used, a documentedprocedure shall exist describing

when and how to perform offsets.

Honeywell Recorders, Controllers and HC900allow offsets to be easily entered and shows

the offsets as part of the configurations.

Honeywell Instruments meet the requirements

for readability, installation, offsets & signal input

Signal Inputs

3.2.3.3

Instruments shall receive an

unmodif ied signal from sensors except

for A to D and D to A conversions, or a

digitally p rocessed, error-checked

equivalent representation of a direct

measured value.

Honeywell Recorders, Controllers and HC900

all accept direct sensor inputs of the T/C

lis ted in Table 2 of AMS 2750D, many of the

recorders can accept and document input

values over communications.

AMS 2750E Instr ments

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AMS 2750E Instruments3.2.5 Instrument Calibration

Requirements for Instrument Calibration AMS 2750E Ref. Requirement Comment

Calibrationcompliance

3.2.5.1

Calibration shall be performed on theinstruments in the Instrument Types

listed in Table 3 & comply w ith the

Table 3 requirements. Prior to any

instrument alteration or calibration,

document the instrument(s) “ as-found

condition”

Honeywell Recorders (X-Series Paperless,DR4500, DPR180 & DPR250), HC900 and

Controllers (UDC2500, UDC3200 & UDC3500) are

considered control, monitoring and recording

instruments.

The recorders can also be used as Field Test

instruments for doing Temp Uniformity Surveys.

Accuracy & Freq.

3.2.5.2

Calibration accuracy & frequency

shall be in accordance with Table 3

Recorders, HC900 & Contro llers can meet the 2°F

(1.1°C) for Digital Instruments or 2°F (1.1°C)

/0.3% of Max Survey Temp for elect ro-mech. inst.

Calibration

Performance

3.2.5.4

Calibration shall be to Mfg’s

instructions or a minimum of 6

simulated sensor inputs at the Min. &

Max. of the Operating Range used for

test or calib. and a minimum of 4 points

in between …...

Honeywell Recorders, HC900 & Controllers

are typically calibrated at the zero and span

values for each range. The calibration

procedure is documented as part of the

product manual.

We can meet the requirements

Honeywell Recorders (X-Series Paperless

and DPRs) provide easy annotation o f the

chart to aid the documentation process.

Calibration

Performance

3.2.5.5.4

Calibration may be performed with a

load in process if furnace temp remains

within the processing tolerance and the

record is appropriately annotated to

indicated that a calibration occurred.

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AMS 2750E Instruments

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AMS 2750E Instruments3.2.6 Instrumentation Records

Requirements for Documentation of Instrument Calibration


InstrumentSticker

3.2.6.1

A st icker aff ixed to the instrumentshall indicate the most recent

successful calibration. As a

minimum the sticker shall include:

Date Cal performed, Due date of next

Calibration, Technician who

performed calibration, and any limits

or restrictions of the calibration

The user must establish adequate traceabilitythat the inst rumentation has been calibrated.

The X-Series Paperless Recorder Status

Maintenance & Diagnostic screens can provide

an aid for doing this .

Calibration

Results

3.2.6.2

The results of calibration shall be

documented. Minimum requirements:

Inst or Furnace No., Make & Model of

instrument, Standard used, method of

calibration, Required Accuracy, As Found &

as Left data for each cal point, Offset as

found & as left, Sensitivity, Statement of

acceptance or rejection, Any lim itations or

restr ict ion, Date of Cal, Next Due Date,

Technician name, Calibration Co Name (if

not done in house, Signature of Calibration

Co , Quality Organization approval

The user must establish a report format to

satisfy these requirements.

The user must document instrument calibrations

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AMS 2750E Instruments

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AMS 2750E Instruments3.2.7 Electronic Records

Requirements for Electronic Data Recording


TMP provides secure analysis & data archiving

The X-Series Paperless Recorders provides

full password system to comply wi th 21CFR

Part 11. 50 Users wi th un ique ID & Password,

time outs, expirations of passwords ,

password definitions and audit trail info. The

HC900 OI provides for secured access via a

User specified numerical code.

System Access –

(Passwords)

3.2.7.1.5

The system shall provide methods (e.g.

passwords) to limi t system access to

only individuals whose authorization is

documented

The TrendManager Software does not alter the

source information and supports the

protection, retention and retrieval of records. A data base Management Tool provides the

means to move, copy and mange the files for

storage on secure servers. TrendManger

Software is compatible with current PC

Operating Systems and can read data from all

generations of Trendview Paperless recorders

Retention &

retrieval

3.2.7.1.4

The system shall support protection,

retention, and retrieval of accurate

records throughout the record retentionperiod. The hardware and/or software

shall operate throughout the retention

period as specified in section 3.7

Review

evidence

3.2.7.1.4

The system shall be capable ofproviding evidence the record was

reviewed – such as by recoding an

electronic review, or a method of

printing the record for a physical

marking indicating review

The X-Series Paperless Recorders providesmark on chart, ability to create a report or data

can be imported to the AMS2750 Report Tool

to c reate a report.

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• Furnace Class Uniformity & Recorder Resolution

- Classes based on Temperature Uniformity requirements- Resolution requirements affect the recorder and chart used- Paperless recorders record actual values eliminating issues

with the chart and the chart resolution

Furnace

Class

Temp

Uniformity

°F

Temp

Uniformity

°C

Max ° per Inch

(CM) of Chart

°F/Inch

Max ° per Inch

(CM) of Chart

°C/CM

Max Chart

Recording

Increment

°F/Line

Max Chart

Recording

Increment

°C/Line

1 ±5 ±3 50 11 2 1

2 ±10 ±6 150 33 5 3

3 ±15 ±8 150 33 5 3

4 ±20 ±10 250 55 10 5

5 ±25 ±14 250 55 10 5

6 ±30 ±28 350 77 25 15

Section 3.3 Thermal Processing Equipment

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Recorders That Meet AMS 2750E

• Honeywell has Paper and Paperless Recorders that meet

AMS 2750E requirements for Controlling, Monitoring and

Recording Instruments & Field Test - Key requirement for Controlling, Monitoring & Recording instruments is a

calibrated accuracy of (± 2°F/1.1°C) or 0.2% of reading whichever is greater for

dig ital instruments, ±2 °F (±1.1 °C) or ±0.3% of the maximum survey temperature of

the equipment, whichever is greater for electromechanical

-Key requirement for Field Test ins truments is a calibrated accuracy of (±1°F/0.6°C)

DR4500 Circular

Chart X-Series Paperless

TrendManager

Software

DPR 180 DPR 250

UDC C ll Th M AMS 2750E

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UDC Control lers That Meet AMS 2750E

• Honeywell has Controllers that meet AMS 2750E

requirements for Control ling, Monitoring andRecording Instruments

- Key requirement for Controlling, Monitoring & Recordinginstruments is a calibrated accuracy (± 2°F/1.1°C) or 0.2% of

reading whichever is greater for digital instruments

UDC 3500

UDC 3200

UDC 2500

HC900 M t AMS 2750D

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HC900 Meets AMS 2750D

• The Honeywell HC900 and associated 559 & 1042

Operator Interfaces (OI) meet AMS 2750Drequirements for Control ling, Monitoring and

Recording Instruments

- Key requirement for Controlling, Monitoring & Recording

instruments is a calibrated accuracy (± 2°F/1.1°C)

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