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.
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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
TMO2D Specifi cations
Physical
Performance
System Accuracy
Refer to transmitter specifi cations
Electronics Display and Output Accuracy
±0.1% of span
Ambient Temperature Eff ect
±0.05% of full scale per °F (°C)
Functional
Analog Output
• Standard: Single, isolated 0/4 to 20 mA, 500 Ω
maximum, 12-bit resolution, fi eld programmable
• Optional: Dual, isolated 0/4 to 20 mA, 500 Ω maximum,
12-bit resolution, fi eld programmable
Alarms
• Standard: Two Form C, SPDT, 2 A maximum @ 115 VAC,
fi eld programmable, 0.01% set-point resolution, 0.05%
of span dead band
• Optional: Two hermetically sealed relays for Class I,
Division 2 hazardous (classifi ed) locations
• Two standard or hermetically sealed relays for
automatic calibration (Auto Cal)
Dimensions
• Rack mount: 5.25 in x 19 in x 9.25 in
(133 mm x 483 mm x 235 mm)
• Bench mount: 5.25 in x 9 in x 9.25 in
(133 mm x 229 mm x 235 mm)
• Panel mount: 5.25 in x 9 in x 9.25 in
(133 mm x 229 mm x 235 mm)
• Weatherproof: 11.25 in x 9.38 in x 4.38 in
(286 mm x 238 mm x 111 mm)
• Explosion-proof: Consult factory
Weight
• Rack mount: 5.4 lb (2.4 kg)
• Bench mount: 7.4 lb (3.4 kg)
• Panel mount: 4.7 lb (2.1 kg)
• Weatherproof: 6.5 lb (3.0 kg)
Environmental
• General-purpose: rack, bench, panel
• Weatherproof: Type 4X/IP65
• Non-incendive: Rack, panel and stainless steel
weatherproof; FM/CSA Class I, Division 2, Groups
A,B,C&D
European Compliance
Complies with EMC Directive 89/336/EEC, 73/23/EEC LVD
(Installation Category II, Pollution Degree 2)
Digital Output
RS232C serial port
Display
Two-line x 24-character backlit LCD
Analog Input
• One 4 to 20 mA input from any transmitter
• Optional second 4 to 20 mA input from TMO2
transmitter
Power
100/115/220/240 VAC ±10%, 50/60 Hz, 35 W maximum
provides 24 VDC, 1 A maximum to transmitter
Temperature
• Operating: 32°F to 122°F (0°C to 50°C)
• Storage: –4°F to 158°F (–20°C to 70°C)
TMO2D Specifi cations
Order Information
Record selected option in blank indicated at bottom of form.
TMO2D Display and Control Module
Design Package
1 Rack mount*
2 Bench mount*
3 Panel mount
4 Explosion-proof (consult factory for design and delivery)
5 Weatherproof (Type 4X, stainless steel)*
Power
1 100 VAC, 50 to 60 Hz
2 115 VAC, 50 to 60 Hz
3 230 VAC, 50 to 60 Hz
4 240 VAC, 50 to 60 Hz
Output
1 Single isolated 0/4 to 20 mA
2 Dual isolated 0/4 to 20 mA
Alarm Relays
1 Dual alarm relays (standard)
2 Dual alarm relays, hermetically sealed for Class I,
Division 2
3 Dual alarm relays and auto cal**
4 Dual alarm relays and auto cal**, hermetically
sealed for Class I, Division 2
Analyzer
1 For use with oxygen analyzer
2 For use with gas analyzer
TMO2D – __ __ __ __ __ Use this number to order product
*Approved for Division 2 with Division 2 alarms
**Dual automatic calibration relays (auto cal)
www.gesensing.com
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920-036C
© 2008 General Electric Company. All Rights Reserved. Specifi cations are subject to change without notice. GE is a registered trademark of General Electric Company. Other company or product
names mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not affi liated with GE.
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