Riken Keiki GD-3EC, Technical Manual

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4. Installation 4-9 Alarm relay setting (option)
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6 Confirm that the sensor is fully inserted.
7 Attach the sensor guard to the main unit.
Attach using a hex key wrench (8 across flats) or wrench.
8 Use the single M4 hex socket set screw to secure the sensor
guard in place.
Use a hex key wrench to tighten the M4 hex socket set screw.
*The diagram illustrates the SD-3. The mounting method for the remote sensor
head (GD-3) is identical.
CAUTION

Depending on the sensor, some fluctuation of the reading may occur if foreign objects are introduced
while replacing the sensor.
4-9 Alarm relay setting (option)
The product can be operated as a standalone unit by setting an alarm relay.
By default, the alarm relay is set to a de-energized state.
WARNING

If using a supply voltage of 30 V AC or 42.4 V DC or greater, either fit protective tubing to the cable or use
a double insulation cable.
Sensor
guard
Hex key wrench
Sensor
Sensor is not fully
inserted.