5. How to Operate
5-2. Basic operating procedures
- 25 -
5-2. Basic operating procedures
Normally, the detection mode is used for normal operations. (The detection mode is activated after the
power is turned on.)
5-3. How to activate the gas detector
Before turning on the power switch, check that the gas detector is installed properly.
Turn on the power switch located on the rear side of the main unit.
The gas detector contains a catalyst and requires warm-up to deliver adequate performance. Warm up
the gas detector for a specified period to obtain accurate detection of gases. (After the power switch is
turned on, the gas detector enters the detection mode immediately after the start-up flow.)
<Warm-up Time>
Unpowered time lasts one week or more
=> Warm up the gas detector for 24 hours or more.
Note that the warm-up time can be reduced using the regular maintenance mode “2-13. PL AGING”.
* See "7-2. Regular maintenance mode".
Unpowered time lasts less than one week
=> Warm up the gas detector for two hours or more.
PW: POWER
A1: ALM1
A2: ALM2
F: FAULT
●
: Lamp on
○
: Lamp off
WARNING
When the gas detector enters each mode
from the detection mode while an alarm is
activated, the alarm contact is released.
The gas detector is
restarted after
recovering from fault.
<Detection Mode>
<Alarm Test Mode>
<Maintenance Mode (user mode)>
<Fault Alarm Status>
<Gas Alarm Status>
<Maintenance Mode (regular maintenance mode)>
MODE
(long
pressing)
MODE
(long
pressing)
TEST
(long
pressing)
Gas
leak