Oldham iTrans, User Manual

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Introduction iTrans Fixed Point Single/Dual Gas Monitor
1-2 iTrans User Manual (P/N: 77023554-1)
Table 1-1. Specifications for the Monitor
Item Description
Enclosure
Cast aluminum, poly-bonded coating or 316 stainless steel. Both are
explosion-proof, NEMA 4X, IP66 rated.
Dimensions
5.0

6.0

5.0 inches (127

153

129 mm)
Sensors
Combustible Gases: Catalytic bead and/or Non-Dispersive Infrared
(NDIR)
Oxygen/Toxic Gases: Electrochemical diffusion
Input Voltage
12-28 VDC operating range (24 VDC typical), 350 mA (nominal)
Maximum current draw of 600 mA with 2 LEL sensors installed
Input Current
(Max)
Toxic Gas/Oxygen 150 mA @ 24 VDC (single gas)
Combustible Gases
(Catalytic)
175 mA @ 24 VDC, 0.6 A peak (single gas)
Combustible Gases
(Infrared)
150 mA @ 24 VDC, 0.6 A peak (single gas)
Combined
Catalytic/Infrared
280 mA @ 24 VDC (two gas)
Display
Dual-channel split-screen LED display (4-digit, 7-segment
arrangement per channel) provides simultaneous display of one or two
gases.
Signal
Outputs
Digital
ModBus RTU: RS485 digital communication with
ModBus RTU software protocol system at 9600 baud.
Three- or four-wire system accommodates over 200
devices in bus configuration. Address selection through
on-board 8-position DIP switch. NOTE: ModBus is not
to be used for CSA C22.2 No. 152 compliance.
Analog 4-20 mA (linear analog)
Alarm Relays
Quantity
3 alarm relays: Two user-programmable relays, SPST,
N.O.; plus one fault relay, SPST, N.C.
Contact
Capacity
5A @ 30 VDC
5A @ 30 VAC
Temperature
Range
-40º C ~ +75º C (-40º F ~ +167º F)
-20º C ~ +50º C (-4º F ~ +122º F) for BBIR only
Humidity
Range
10% - 90% RH (non-condensing), typical
Pressure
Atmospheric pressure

10%