New Cosmos Electric KD-12B, Инструкция по эксплуатации

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11-4. Replacement of Sensor Unit
CAUTION

Only New Cosmos Electric Co., Ltd. maintenance service members or personnel who
have completed a maintenance seminar can replace the sensor unit.

Be sure to handle the sensor unit with care. Do not drop or throw the sensor unit.
Otherwise, the sensor wire may be disconnected or a sensor failure may result.

The external contact may operate when replacing the sensor unit if the sensor output is
not stable. Release the interlocks of the external devices if needed.

When removing or mounting the sensor unit, do not twist the harness of the sensor
connector.

When closing the casing cover, make sure that the power supply cord, harness, or O-ring
is not caught by the casing cover.
WARNING
 Be sure to turn OFF the indicator unit, signal converter or main body equipment before
replacing a sensor unit. Otherwise, they may become a source of ignition.
 Be sure that the sensor and the sensor connector have been firmly connected to the
detector before the power is turned on. If the sensor and the detector are incorrectly
connected, the detector cannot detect gas.
 The dimensions of flameproof joint between casing and casing cover of KD-12 flameproof
housing are exceeding the minimum requirements stated EN/IEC60079-1. Please contact
the manufacturer for inspection, repair and/or adjustments of this flameproof.