Hanwei BS03, Руководство по эксплуатации, Страница: 14 / 20

BS03 fixed gas detector operation manual
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“0” or “1”).
For example: from low bit to high bit, second switch and fourth are at
up position “ON”, then X7=X5=1, other bits are all 0, so the address code
shall be calculated as: ADD=0×64+0×32+0×16+1×8+0×4+1×2+0×1=10
You can find the address code settings at the last pages of this manual.
The first code switch only can be used during maintenance operation,
but it must be at “ON” position normally. To same one controller, there
cannot be more than one detectors which are set at same address code.
7. Sensor replacement
In normal working environment, catalytic sensor’s using life is 3 years,
electrochemical sensor’s using life is 2 years. When the sensor life is overdue,
the detection result may be not accurate.
To replace the sensor, please first cut off the power but it won’t be necessary
to open the detector’s housing, only need to open the sensor assembly.
1. Take off the calibration cover in anti-clockwise.
2. Pull out the decoration part downwards.
3. Screw off the top thread from the sensor protection cover.
4. Take off the protection cover in counter-clockwise.
5. Take out the old sensor.
6. Install new sensor, make sure the electric contact match to each contact
positioning hole.
7. Then install in turns protection cover, top thread, decoration part and
calibration cap.
8. Power on the detector and calibrate the detector.