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The following status events or messages may appear during the SENSOR CHECK or
CALIBRATION routines:
SENSOR CHECK CALIBRATION
BAD ID IN CALIBRATION
BAD SNS IN SPAN CAL
BAD GEN IN ZERO CAL
BAD GEN SCHK PASS SPAN CAL
BAD ID SCHK PASS ZERO CAL
SENSCHK FAIL SPAN CAL
SC PASS FAIL ZERO CAL
SC FAIL CALIB STOPPED
Examples of status event displays are summarized below:
1 BAD ID 2 BAD SNS
3 BAD SNS 4 BAD GEN
Where: CH1: BAD ID - ID test failed
CH2 & 3: BAD SNS - sensor freq. input is out of limit
CH4: BAD GEN - SENSOR CHECK gas generator is faulty or depleted.
The three events above will stop normal operation until the condition that produced the
problem is found and corrected. The only exception is the BAD GEN condition which
may be cleared by pressing the ENTER key. The occurrence of any of the above
conditions is signaled by a flashing display.
1 IN CAL 2 BAD SNS
3 BAD SNS 4 BAD GEN
Where: CH1: IN CAL - calibration in progress
CH2: PASS ZR - zero calibration passed
CH3: FAIL SP - span calibration failed
CH4: normal RUN mode display
Refer to section 5.0 for information on the CALIBRATION procedure.
1 SENSCHK 2 SC PASS
3 SC FAIL 4 CL 3.45
Where: CH1: SENSCHK- sensor check in progress
CH2: SC PASS- sensor check passes
CH3: SC FAIL- sensor check failed
CH4: normal RUN mode display.
Refer to section 3.2.2.10 for information on the SENSOR CHECK procedure.
The display will show the status events for a period of time and then operation will
resume in the normal RUN mode.
3.2.2.15.3 Event Queues
Certain types of alarms or events are logged into the Active Alarms or Historical Alarms
database, also called Event Queues. The databases may be accessed as follows:
• Active Alarms - press the keypad’s ALARM button
• Historical Alarms - press the keypad’s DATA button
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