13 Specifications
Varec, Inc. 141
Entity Parameters
Associated Intrinsically Safe (AIS) Apparatus
Encoder
Functional
Primary Components
Gas Group C/IIB Gas Group D/ IIA
Um = 240 V 240 V
Uo = 28 V 28 V
Io 120 mA 120 mA
Po = 840 mW 840 mW
Co = 0.65 μF2.15μF
Lo = 9.87 mH 19.75 mH
Refer to Control Drawing 28-013355, Appendix D.
Item Description
Type Absolute Capacitance Encoder
Accuracy +/- 1/16” (1.58 mm)
Item Description
Power Requirements 20 to 65 VDC 0.05A
40 - 65 / 100 - 120 / 220 - 240 VAC 750 mW nominal,
50/60 Hz
Available Ranges Feet: 0 - 120 ft
Meters: 0 - 36 m
Note Limit switch ranges up to 100 feet.
Component Description
Main Processor Board Bi-Phase Mark or EIA-485 MODBUS
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