6. Alarm Activation
6-2 Fault alarm activation
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6-1-4 Alarm response
If an alarm is triggered, respond promptly in accordance with the user’s management rules.
The typical procedures are as follows:
Step 1 Check the reading on the product.
CAUTION
In the case of momentary gas leaks, the reading may have already dropped by the time the reading is
checked. The reading may also drop while in a temporary alarm state due to factors other than gas
alarms, such as noise or incidental conditions.
Step 2 Keep all individuals out of the monitored zone to ensure safety in accordance with your alarm
control concentrations.
Step 3 If the concentration display continues, close the main valve for the gas involved and confirm
that the gas concentration reading has fallen.
Step 4 Approach the gas leak location and use a portable gas detector to check for the presence of any
remaining gas.
CAUTION
To avoid hazards while carrying out this work, assume that the gas is still present and wear the
appropriate gear.
Step 5 Once you have determined that no hazard remains, take action to fix the gas leak.
6-2 Fault alarm activation
A fault alarm is triggered if an abnormality is detected in the product.
If a fault alarm occurs, the fault lamp (FAULT) illuminates in yellow, and an error code is displayed as follows:
<In case of sensor abnormality>
FAULT lit (yellow)
NOTE
After the product has successfully recovered from the fault, it will initialize and restart.
For more information on fault details (error codes) and appropriate corrective action, refer to
‘9. Troubleshooting’.
If a fault alarm occurs, determine the cause and take appropriate action. If the product has problems and
faults occur repeatedly, contact Riken Keiki immediately.
Fault lamp (FAULT)
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