Instruction manual
Model 5100-99-IT 4-20 mA Module
5.3.1 SENSOR EXPOSURE TO GAS
Calibration gas must be delivered to the sensor using the flow rate and duration specified by the sensor
manual.
Function Display Description Reference
M E
ST
M E
ST
M E
ST
M E
ST
M E
ST
M E
ST
ME
S T
ME
S T
M E
ST
M E
ST
M E
ST
M E
ST
(Any)
Operation: Hold magnet over Mode Switch for ten senconds to
abort calibration
Sub C
Enter C 25PPM
Banner: Apply 25PPM gas, then enter <E> to calibrate gas
sensor
Sub B
C 25PPM
Operation: Apply calbration gas.
Enter CAL-FAIL
Operation: No calibration gas applied, or sensor did not respond
correctly.
WAIT-50
Operation: Fifty second time out before sensor is returned to
service.
Default Display
CXXXPPM
Operation: As gas is applied the reading will increase - wait 3
minutes
Enter CAL-OK Calibration Passed - now remove gas
Table 5-1
Calibration
Banner: Calibration Aborted
Mode
XXXPPM
Key
Mode ALMRSET: Mode Function - Alarm Reset
Sub A
Sub B
Mode Function - Calibrate
Enter CAL-ZERO
Banner: Apply zero gas, enter <E> when done
Mode CALIB:--
WAIT-50
Operation: Fifty second time out before sensor is returned to
service.
Up Adj-SPAN
Operation: User adjustable value
Enter 25PPM-SP
Operation: Ready for user adjustment
10PPM-SP
Banner: Select span, enter <E> when done
Up 25PPM-SP
Operation: Change Span Gas Value to 25PPM
Sub A
C 4 PPM
Banner: Apply span gas, then enter <E> to calibrate gas sensor
C 4 PPM
Operation: Apply calbration gas.
Enter
Banner: Select span, enter <E> to calibrate sensor
Banner: (5100-03-IT) Specify Cal gas <E> when done
Enter ACK Zero gas setting acknowledged
Sub-Routines
XXXPPM Default Display
Operation: Confirm area clear of gas, or apply zero air to
sensor.
10PPM-SP
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