Specifications | 2-1
SpecificationS
control Unit
Display
4 line x 20 character vacuum fluorescent. Displays combinations of oxygen
(0.1 PPM O
2
to 100%, auto-ranging), time and date, cell temperature, user
programmable text, thermocouple mV or cell mV. Password protection,
programmable pressure compensation and context-sensitive help are also
provided.
analog output
Two isolated linear current outputs. Select O
2
, cell temperature, thermo-
couple mV or cell mV. Each output can be 4-20 mA, 0-20 mA, 20-4 mA or
20-0 mA, and is fully scalable. Hold or track during calibration and select
degree of damping. Maximum load 1200 ohms.
alarms
Two independent oxygen alarms, each high or low selectable. One alarm
can be assigned as oxygen, calibrate or verify. Set relays to energize or de-
energize on alarm. Contact rating 0.5A, 30V, 10VA max. noninductive load,
AC or DC.
Diagnostics
Watchdog timer and service alarms. System test for A/D, RAM, EEPROM
and keypad. Display line 4 reserved for full-text error and diagnostic
messages. Twenty-entry exception log for automatically detected system
events.
Summary of Contents for Thermox CEM O2/TM
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Page 45: ...Installation 3 23 Figure 3 20 Current output connections example...
Page 47: ...Installation 3 25 Figure 3 21 Series 2000 standard alarm connections...
Page 49: ...Installation 3 27 Figure 3 22 Series 2000 controller RCU connections...
Page 51: ...Installation 3 29 Figure 3 23 Series 2000 2 wire RS 485 communications connections...
Page 53: ...Installation 3 31 Figure 3 24 Series 2000 4 wire RS 485 communications connections...
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Page 137: ...Service and Parts 7 3 This page intentionally left blank...
Page 139: ...Service and Parts 7 5 Figure 7 1 Cell replacement...
Page 143: ...Service and Parts 7 9 Figure 7 3 Furnace replacement...
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