SENKO sp2nd - Battery & Sensor replacement; Disassembly

Battery & Sensor replacement
When you replace the Battery and sensors of SP2nd, you need some instrument and components as
below.
Warning : - It is absolutely prohibited to replace battery at potential explosion areas
or dangerous regions.
- Replacement of components can be damage to intrinsic safety function.
- The sensors published by SENKO should be used for replacement. Unsuitable
function could be shown if another sensors use for replacement..
- Disassembly should be necessary only for sensors & battery replacement. After
the sensor replacement, the span gas calibration should be done.
- Instrument : + driver
- Battery : 3V lithium CR2 battery
- Sensors for replacement : Senko SS series
- Filters for replacement
Disassembly
- Turn off the power.
- Replace the sensor and battery , please refer to below drawing.
- After replacement, check the sensor fail and battery working.
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1
3
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8
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1. Label(Membrane)
2. Calibration Cap
3. Front Cover
4. Sensor
5. PCB
6. Battery
7. Rear Cover
8. Belt clip
9. Machine Screw
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