Oldham iTrans 2

12
Specifications
Specifications for the gas monitor are listed in Table 1-1.
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 x 153 x 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)
Input Current
(Max)
Toxic Gas/Oxygen
150 mA@24 VDC (single gas)
200 mA@24 VDC (single gas + HART)
Combustible
Gases (Catalytic)
250 mA@24 VDC, 0.8 A peak (single gas)
300 mA@24 VDC, 0.8 A peak (single gas + HART)
Combustible
Gases (Infrared)
170 mA@24 VDC, 0.5 A peak (single gas)
220 mA@24 VDC, 0.5 A peak (single gas + HART)
Combined
Catalytic/Infrared
350 mA@24 VDC, 1.2 A peak (two gas)
400 mA@24 VDC, 1.2 A peak (two gas + HART)
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
-40 ºC ~ +75 ºC (-40 ºF ~ +167 ºF)
Humidity
Range
10% - 90% RH (non-condensing), typical
Pressure
Atmospheric pressure ±10%
Weight
2.9 Kg (6.4 lbs.)
Table 1-1 Specifications for the Monitor