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Aeroqual AQM60 User Guide
7.3.5. Leak Check Gas Sensor Plumbing
You will need a 0-2 LPM flow meter and a 0-0.5 LPM flow meter, tubing, and a 2 LPM diaphragm pump
Gas Treatment Module
Disconnect the gas sensor module lines from the manifold block. Block off all connectors with
supplied luer caps except inlet.
Attach a flow meter to the pump outlet and measure outlet flow. This should be within 10% of the
value given in the factory performance report. If not, the pump will need to be replaced.
Block off the inlets on the gas manifold and check that the pump outlet flow goes to 0 LPM. If not
there are leaks in the module. Check and tighten connections.
Sensor Modules
O
3
and NO
2
modules can be leak tested by attaching a 0-0.5 LPM flow meter to the outlet and
checking that the flow drops to 0 LPM when the inlet is blocked off. If not there is a leak.
Disassemble the module and check the connections and tubing. If no obvious leaks are found the
module should be reassembled and returned to the manufacturer.
Other gas modules should be leak tested by disconnecting the inlet and outlet tubing. Connect a
diaphragm pump to the outlet of the module and check the flow drops to 0 LPM when the inlet is
blocked off. If not there is a leak. Disassemble the module and check the connections and tubing. If
no obvious leaks are found the module should be reassembled and returned to the manufacturer.
7.3.6. Removing and Replacing AQM Modules
All modules are mounted onto the base plate with 4 screws.
To remove a module, follow these steps:
1.
Turn off AQM
2.
Remove all air tubes, plugs and cabling fitted to the particular module.
3.
Loosen the 4 screws holding the module to the base plate.
4.
Slide the module into the screw holder slots and remove module.
5.
Cap the un-used tubing connections to avoid contamination with luer caps supplied with the unit.
6.
Ensure that the power and communication connections are reconnected for all modules.
7.
Reconfigure the gas configuration using the AQM software to represent the new module
configuration.
To replace the sensor module reverse this process ensuring that the module fixes back onto the base plate
securely and that the air tubes are replaced and firmly fitted to prevent any air leakage.
Summary of Contents for AQM60
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