5. How to Operate
5-6. Description of operation (maintenance)
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5-6. Description of operation (maintenance)
5-6-1. Maintenance mode
Enter the maintenance mode to perform each adjustment.
Holding down the MODE switch for three seconds in the detection mode enters the maintenance mode.
Holding down the MODE switch for three seconds in the maintenance mode returns to the detection mode.
If the maintenance mode is left unoperated for 10 hours, the detection mode automatically returns.
■
17.4 - 20.0 mA: 4.0 mA
WARNING
When the maintenance mode is entered while gas detection is performed, the external output signal
(gas concentration signal) becomes 17.4 mA (normal state).
* The maintenance mode consists of "Daily Maintenance" and "Regular Maintenance", and "Daily
Maintenance (Fresh Air Adjustment)" is normally used.
Daily maintenance
Select with
▲
/
▼
switch
CAUTION
Do not operate "1-3. Regular Maintenance Mode" unless instructed to do so. Request it from RIKEN
KEIKI.
1-1. Zero Adjustment
1-3. Regular maintenance mode
1 - 1
SPAN
1 - 3
M MODE
Hold down the MODE switch for 3 seconds
Enter the maintenance mode
20.9
O2
