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(3) Calibration equipment kit (optional)
●
Contact our dealer / agency for a calibration equipment kit.
A kit to easily make calibration gas is also available. Please contact our dealer / agency.
(Equipment included in the calibration equipment kit differs according to detectors.)
8-4 Replacing the Gas Sensor
(1) Replacing the sensor of the diffusion type gas detector KD-5
□
-N
①
Turn OFF the power switch and battery switch (when
it is with a backup power source) on the indicator unit.
②
Loosen the locking screw on KD-5B with a M4
hexagon wrench.
③
Turn the sensor guard to the left by about 30 degrees
and detach it.
④
Pull down the sensor unit so it comes off.
⑤
Attach a new sensor unit and turn the sensor guard
to the right until it fits properly.
⑥
Fasten the locking screw with a M4 hexagon wrench.
⑦
Turn ON the power switch and battery switch on the
indicator unit to start normal operation.
⑧
Carry out zero and span adjustments after replacing
the sensor unit. (Refer to “5-6. Maintenance
Function” (1) and (3).
Fig. 19 Calibration Equipment Kit (for KD-5)
Turn OFF the power of Indicator / Alarm unit before opening the cover of the gas detector.
Opening the cover of the gas detector when the power is on may cause a fire.
WARNING
Fig. 20 Replacing the Sensor of a Diffusion
Gas Detector
instruction
manual
rubber pipe
quantitative
pump
pinch cock
inspection cap
syringe
vinyl tube
gas bag
sensor guard
detector’s main body
locking screw
sensor unit
M4 hexagon wrench
Be careful not to damage the junction where the electric compartment cover meets the terminal box on the
gas detector. Damage to this area reduces the explosion-proof properties of the equipment.
Always contact our dealer when replacing the sensor because improperly doing so may decrease the
equipment’s performance. Zero and span adjustment are also necessary after replacing the sensor.
CAUTION
Refer to the instruction manual for KD-2A,KD-3A when use gas detector head KD-2A
、
KD-3A
MEMO
