Battery Replacement - WatchGas NEO Service Manual

Service Manual
Remove the sensor cap and boot
bracket (2-mm Allen wrench)
In extreme cases it is necessary to
replace the pump diaphragm, or
simply replace the entire pump
5. When re-assembling the components, ensure that
a. the pump base is inserted onto the guide/support post
b. the pump and circuit board are screwed down securely.
c. the gasket between the front and back housing fits snugly and forms a good seal, otherwise the
housing could leak and compromise intrinsic safety.

2.3 BATTERY REPLACEMENT

1. Open the housing and disconnect the circuit board as described above for pump replacement.
2. Disconnect the battery from the circuit board as shown below.
3. Use a Size 6 Torx screw bit to remove the bracket holding down the battery.
4. Insert a replacement battery and re-assemble.
Photoionization Detector NEO
Remove the pump gasket block.
No need to remove gas connec-
tions.
During re-assembly, insert the
pump base onto the supporting
guide post before screwing down
9
D e t e c t i o n D e t e c t i o n
Wipe clean the pump gas-
ket. It may help to remove it
(very carefully to avoid da-
mage) and clean both sides.
In some cases it helps to ro-
tate it or flip it to place the
top surface down. If dama-
ged or deformed, replace
the gasket.
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