sc06_557-560_fe-mls2b-series_longrange
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Photoelectric Sensor
557Pepperl+Fuchs Inc. 1600 Enterprise Parkway Twinsburg, Ohio 44087-2245 www.am.pepperl-fuchs.com
Telephone (330) 486-0001 FAX (330) 405-4710 E-Mail: sales@us.pepperl-fuchs.com
PEPPERL+FUCHS
P
hotoelectric
FEM
LS2BSeriesLong
Range
FE-MLS2B SeriesLong-RangeThru-Beam Sensors
2500 feet (762 meter) scan range
Cast aluminum housing
10 amp DPDT relay
See page 559-560 for FE-MLS2B Series additional information and dimensions.
Thru-Beam
Mode
See page 558
Sensing Range: 762m
Output: Relay
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Photoelectric Sensors
558Pepperl+Fuchs Inc. 1600 Enterprise Parkway Twinsburg, Ohio 44087-2245 www.am.pepperl-fuchs.com
Telephone (330) 486-0001 FAX (330) 405-4710 E-Mail: sales@us.pepperl-fuchs.com
PEPPERL+FUCHS
Photo
electric
FE-MLS2BSeriesLong-Range
Thru-Beam Mode
Sensing CharacteristicsSpecifications
SENSING RANGE
SENSITIVITY ADJUSTMENT
MODEL TransmitterNUMBER(S)
Receiver
OUTPUT
ELECTRICALCONTACT RATING
SUPPLY VOLTAGE
LED(s)
POWER TransmitterCONSUMPTION
Receiver
MECHANICAL LIFE OF RELAY
OEPRATING MODE
RESPONSE TIME
SWITCHING FREQUENCY
PROTECTION (IEC)
LIGHT SOURCE
TEMPERATURE RANGE
HOUSING MATERIAL
LENS
APPROVALSGeneral Purpose
LISTED
General PurposeCERTIFIED
ELECTRICAL CONNECTION
ADDITIONAL DATA
762m
Yes
FE-MLS2EB-LR
FE-MLS2RB-LR
DPDT relay
115V/10A
105-130VAC
No
2.6VA
3.4VA
1X106
Light on/dark on
60ms
16Hz
IP67
Infrared LED
-40F to +158F
Diecast aluminum
Glass
Yes
Yes
Terminalhousing
See pages 559-560
2000100 200 300 4 00 600 1000 1 50050
xDistance X [m]
200
100
80
60
40
20
10
8
6
4
2.5
2
1.5
1
400
600
800
1000
Exce
ssGain
Excess Gain vs. Sensing Range FE-MLS2
MLS2B Excess GainTA = 25 deg. C
(in clean air)
Max. RecommendedRange
(in clearn air)
Typ.
Min.
0
304.8
-304.8
609.6
-609.6
914.4
-914.4
0 500300 900
x
y
Distance X [m]
Max. Recommendedrange (clean air)
OffsetY[mm]
FE-MLS2Movement Characteristics
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Photoelectric Sensor
559Pepperl+Fuchs Inc. 1600 Enterprise Parkway Twinsburg, Ohio 44087-2245 www.am.pepperl-fuchs.com
Telephone (330) 486-0001 FAX (330) 405-4710 E-Mail: sales@us.pepperl-fuchs.com
PEPPERL+FUCHS
P
hotoelectric
FEM
LS2BSeriesLong
Range
Thru-Beam Mode
Transmitter
1. Remove the rear housing, and connect AC powerthrough the 3/4-inch conduit opening to the line
terminals. (Check the nameplate on top of thetransmitter for correct line voltage.)
2. Apply power. (The indicator at the side of thetransmitter will light when the invisible infrared beam isbeing emitted.) Replace rear housing.
Receiver
1. Remove the rear housing. The relay and logic card (ifused) should also be removed.
2. Place the receiver in its intended location opposite thetransmitter.
3. Connect the load to the proper terminals.
4. Connect AC power to the line terminals. (Check
the nameplate on top of the receiver for correct linevoltage.)
5. Plug the relay in.
6. Set the mode selector switch to the UP, light operate(L.O.) position.
7. Turn the sensitivity adjustment fully clockwise(maximum sensitivity).
8. Apply power.
Alignment can now be accomplished in several ways:
9. a. Watch the indicator on the side of the receiver. Itlights to indicate alignment. For best alignment, centerthe receiver in the beam. Determine the beam center
by watching the indicator as you move the receiver up,down, left and right.
b. Use the earphone alignment aid. Remove the pipeplug in the side of the receiver. Plug the earphoneinto the exposed jack. As you move the receiver intoalignment, static gives way to a definite tone at theedge of the effective beam. The tone weakens as youapproach optimum alignment, then gets louder as younear the opposite edge of the effective beam. Midway(both horizontally and vertically) between the twoloudest tones is where the beam is strongest (thoughthe relay will energize anywhere with the effectivebeam.)
c. Use the earphone cord with a volt meter forprecision alignment. Remove the earphone plug fromcontrol housing and insert the earphone. Position thetransmitter and receiver units until the loudest tone isheard.
If more precise alignment is required, remove the backcover from the controls housing. Connect AC voltmeterclip leads to the ear jack terminals inside the housing.Correct polarity is not required. Set the voltmeter to the 15volt scale. As the receiver is moved into alignment with theedges of the effective beam (see figure below), a highervoltage level will be noted on the voltmeter. Centering thereceiver both horizontally and vertically, midway betweenthe highest readings, gives the maximum strength signal atthe receiver.
Remove earphone jacks. Apply PST type or equivalent pipesealant to earphone plug. Install earphone plug and tightento 20 in/lb. torque. Reinstall rear housing cover.
10. Tighten the mounting bolts on both transmitter andreceiver.
11. Block the beam with the object to be detected. (Whenthe beam is blocked, the receiver indicator will beOFF.)
12. To energize the relay when the beam is blocked dark
operation (D.O.) set the selector switch to the DOWNposition.
If you are using a plug-in logic circuit card:
13. Be sure the selector switch is in the DOWN, darkoperate, position.
14. Insert logic card. The sensitivity adjustment on thecard MUST be fully clockwise.
15. Select light or dark operation with the selector switchon the card.
Dark to operate relay - OUT positionLight to operate relay - IN position
16. Set the time adjustments, if any, on the card. Turnthe adjustments clockwise to increase the time delayinterval, or pulse.
Replace the rear housing: tighten screws to maintainwatertight, dust-tight sealing.
Effective
Beam
Diameter
Loud Tone
or
High Voltage
Reading
Weak Signal
(or Narrow Beam)
Strong Signal
Effective
Beam
Diameter
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Photoelectric Sensors
560Pepperl+Fuchs Inc. 1600 Enterprise Parkway Twinsburg, Ohio 44087-2245 www.am.pepperl-fuchs.com
Telephone (330) 486-0001 FAX (330) 405-4710 E-Mail: sales@us.pepperl-fuchs.com
PEPPERL+FUCHS
Photo
electric
FE-MLS2BSeriesLong-Range
Dimensions (mm)
FE-MLS2
Thru-Beam Mode
Transformer
ChassisGroundScrew
TRANSMITTER RECIEVER
ChassisGroundScrew
RelaySocket
Alignment
EarphoneJack
Transformer
Logic CardConnector
OperatingMode
Selectorswitch
SensitivityAdjustment(factory pre-adjusted fornormal scanning 2500 ft.)
203.2
25.7
88.9
44.4101.6
9.7
91.9
112.3
15.7
(2)1/420 UNC
38.1
7.1
107.99.7
127.0
25.4
25.4
3/4-14 NPT
See pages 885-892for additionalaccessories
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