Oldham iTrans, User Manual

Page: 7 / 88

iTrans Fixed Point Single/Dual Gas Monitor Introduction
(P/N: 77023554-1) iTrans User Manual 1-1
I
NTRODUCTION
Chapter
1
1.1. Overview of the Gas Monitor
The fixed gas monitor is an
independent monitor capable of
displaying one or two gas
concentrations as well as sensor or
instrument
comes standard with
independent 4-20 mA outputs for each
channel, making it ideal for interfacing
to control units. A digital ModBus
RTU interface is also available,
allowing the
to interface to
digital control systems. The
is available with an optional relay
board, allowing the unit to directly
control external devices such as fans,
pumps, alarm horns, or warning lights.
Two of the relays can be programmed
for alarm activation, while the third
relay is a fault protection relay.
Figure 1-1. Typical Gas
Monitor with Single Gas Sensor
(Stainless Steel Option)
Calibration, changing span gas concentration, and checking the instrument’s
configuration are easily accomplished using the non-intrusive magnetic wand.
The is powered with a 24 VDC (12-28 VDC) power supply and
provides a 4-20 mA control signal for each sensor.
1.2. Specifications
Specifications for the gas monitor are listed in Table 1-1 .