7 Maintenance
7-2. Regular maintenance mode
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7-2. Regular maintenance mode
Mode Item
LCD
display
Details
Maintenance
mode
(Regular
maintenance)
Test
=> P48
2-0
2-0. 0 ........ Not used.
2-0. 1 ........ Not used.
2-0. 2 ........ Fault alarm test => P49
2-0. 3 ........ LED and LCD test => P49
2-0. 4 ........ Memory test => P50
Zero adjustment
=> P62
2-1
Performs zero adjustment.
Span adjustment
=> P63
2-2
Performs span adjustment.
Zero/span initialization 2-3
Initializes zero and span values.
Environmental setting 1
=> P51
2-4 Functions
setting
2-4. 0 Sensor intermittent operation setting while UPS is
used
2-4. 1 ........ Not used.
2-4. 2 ........ Alarm setpoint setting => P54
2-4. 3 ........ Alarm delay time setting
2-4. 4 ........ Alarm activation setting => P54
2-4. 5 ........ Zero suppression type setting
2-4. 6 ........ Zero suppression value setting
2-4. 7 ........ Contact setting
2-4. 8 ........ Energized/De-energized alarm contact setting
=> P55
2-4. 9 ........ Zero follower setting
2-4. A ........ Maintenance mode external output setting
=> P56
2-4. B ........ External output adjustment => P57
2-4. C ....... External output setting for alarm test
2-4. D ....... Contact output setting for alarm test
2-4. E ........ Password setting
2-4. F ........ Sensor operation setting at a fault state
Environmental setting 2
=> P58
2-5 Functions
setting
2-5. 0 ........ Heater current adjustment => P60
2-5. 1 ........ Not used.
2-5. 2 ........ Measured gas selection => P61
2-5. 3 ........ Alarm value limiter setting
2-5. 4 ........ Fault delay time setting
2-5. 5 ........ Buzzer setting for fault state
2-5. 6 ........ 24-hour zero follower setting
2-5. 7 ........ Green LCD brightness adjustment
2-5. 8 ........ Red LCD brightness adjustment
Displays
=> P61
2-6
2-6. 0 ........ Heater current display
2-6. 1 ........ Fault detail display
Factory mode switching 2-7
Not used.
Return to the user
mode.
2-8
Returns to the user mode "1-0".
WARNING
After the adjustment is completed, never fail to press the MODE key to return to the detection mode.
If the alarm system remains in the regular maintenance mode, it automatically returns to the
detection mode in ten hours.
If the detection mode automatically returns after the regular maintenance mode was entered with
the MAINT switch, return the MAINT switch to the center (OFF).
Otherwise, other switches cannot be operated.
