Madur GA-12plus User manual

ELECTROCHEMICAL CELL REPLACEMENT IN
GA-12PLUS ANALYSER
Service manual
Version: 0.1
05 2014

www.madur.com Service Manual GA-12plus
Index
1. Electrochemical cell replacement................................................................................3
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www.madur.com Service Manual GA-12plus
1. ELECTROCHEMICAL CELL RE LACEMENT
In order to replace EC in GA-12plus analyser follow the steps:
1. Unscrew 6 Philips type screws at the back of the casing
2. Remove the front panel, disconnect the keyboard and display from the CPU
board (this step is optional – but then please handle the front plate with care)
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www.madur.com Service Manual GA-12plus
3. Remove the security bolts from the bottom part of the casing
4. Detach the bottom part of the analyser's casing
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www.madur.com Service Manual GA-12plus
5. Unscrew 3 screws of the gas chamber
6. Disconnect the gas chamber from the CPU PCB by disconnecting differential
pressure sensor's tubing (marked in the picture below)
7. Remove the sensors' PCB from the gas chamber – unscrew 5 screws
(marked in the picture below)
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www.madur.com Service Manual GA-12plus
8. Gently pull the sensor you wish to replace from the sensors' PCB
9. Follow the above steps in reverse order to assembly the device back.
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