Riken Keiki SD-1DRI, Operating Manual

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Operating Precautions
This detector is a gas detector that detects combustible gases, toxic gases in the air and triggers a gas
alarm.
The gas detector is a safety unit, not an analyzer or densitometer which performs quantitative/qualitative
analysis/measurement for gases.
Please fully understand the following points before using it, so that it can be used properly.
1. This detector may be interfered by gases and vapors other than the gas to be detected.
Please note that the alarm may be triggered by interference. In addition, it may be fluctuated by
environmental (temperature, humidity, etc.) changes in the installation site.
Perform zero adjustment regularly (every 1 month).
2. Do not use the gas detector in a place where the temperature changes drastically (about 10-15
℃
or
more).
3. The alarm must be set within a range where the performance of the detector can be ensured.
In facilities compliant with the High Pressure Gas Safety Act, an alarm setting below our standard
alarm setpoint may trigger a false alarm.
4. This is a safety unit, not a control unit.
If use in safety unit, the analog signal output of the detector must be used for an indicator or external
recorder.
If these outputs are used to control other units, we shall not be responsible for any malfunctions.
5. Please contact us because a pretreatment device is required for gas sampling from locations with high
humidity, dust, or acid mist.
6. For maintenance of the gas detector, it is necessary to perform a regular inspection including
replacement adjustment of the regular replacement parts described in the operating manual.