GE Sensing TMO2D Specifications

GE

Sensing & Inspection Technologies

TMO2D

Display and Control Module

Applications

A display/controller for use with:

• XMO2 thermoparamagnetic oxygen transmitter

• O2X1 galvanic fuel cell oxygen transmitter

• XMTC thermal-conductivity hydrogen/gas
transmitter

• Any other 4 to 20 mA output transmitter

Features

• Two-line x 24-character backlit LCD

• Single or dual isolated, 4 to 20 mA outputs

• Up to four fi eld-confi gurable process alarms

• Automatic calibration relays.

g

Display and Control Module

The TMO2D is an optional display and control module
that enhances the performance and operation of
transmitters such as the XMO2, XMTC or O2X1. It provides
a two-line x 24-character backlit LCD display, display
and option programming via keyboard, recorder outputs,
alarm relays, and relays for driving sample system
solenoids for automatic zero and span calibration, as
well as a 24 VDC power supply for the transmitter. The
TMO2D also provides microprocessor-based oxygen
signal compensation for improved accuracy for the
TMO2 transmitter.

Autoverifi cation/
Autocalibration

The TMO2D provides long-term, hands-off operation with
this optional feature. When initiated, the TMO2D controls
solenoid valves in the sample system to bring zero and
span gases to the transmitter. Then TMO2D software
compares the calibration gas readings with factory
data to verify proper calibration. If an adjustment is
necessary, the TMO2D makes corrections automatically
and notifi es the user via the front panel display and
alarm contacts.

XMO2 thermoparamagnetic
oxygen transmitter

TMO2D auto

cal relays

Zero/span

solenoid valve

XMTC thermal conductivity
gas transmitter

O2X1 galvanic fuel cell
oxygen transmitter

Sample

outlet

gas

Span

gas

Zero

TMO2D with XMO2 and sample system

Sample

inlet

Sample/cal

solenoid valve