5 How to Operate
5-4. Detection mode
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When a fault occurred simultaneously with another, the errors are displayed alternately.
A memory error cannot be cleared. Please contact RIKEN KEIKI.
A sensor disconnection error can be cleared by recovering the sensor from the disconnection state.
Gas Alarm State
When a gas that reaches or exceeds the alarm setpoint is detected,
the gas concentration display (bar meter) turns red, the ALARM lamp
blinks in red, and the buzzer sounds. Also, the alarm lamp of the base
unit lights up in red.
Fault Display
A fault alarm is triggered when the alarm system detects abnormalities
(auto-reset).
When a fault alarm is triggered, the FAULT lamp lights up in orange, an
error code appears on the LCD, and the buzzer sounds.
Memory error: Generated as a result of self-diagnosis at power-on
Sensor disconnection error: Generated when a sensor disconnection occurs in the measuring
mode
Warm-up for recovering from an error: 25 seconds
(LED display) (Fault detail)
External output: 0/6/12 VDC specification [standard]: 0 V, 4-20 mA specification [option]: 0.5 mA