6 Osmetech OPTI™ Repair Procedures
6-8
Service Manual – Osmetech OPTI™ Analyzer
Verification
To test the gas module proceed as follows:
•
Insert the gas bottle into the OPTI to be tested. Power on the unit.
•
Go to
DIAG3 – GValve
and press
ENTER
. This will activate the gas
valves and pressurize the entire gas system including the pump cartridge.
•
Toggle the GValve on/off and listen for a ‘click’ sound from the
activating valve.
To test the
Aerodyne module output flow
, proceed as follows:
•
Take a
full
gas bottle and insert the bottle into the OPTI.
•
Go to
DIAG3 – GValve
and press
ENTER
. Press the right arrow key to
de-activate the gas valves.
•
Remove the pump cartridge.
•
Press the left arrow key once and listen for gas coming out the rear pump
port. Press the left arrow key right away to deactivate the gas valve.
•
If you cannot hear the gas flow, the gas manifold module needs to be
replaced.
Display Assembly
Removal
The Osmetech OPTI 1 uses a backlit LCD display module to display operating
instructions and analyzer results. To remove the LCD display, first open the
lower portion of the analyzer and disconnect the ribbon cables J13 on the main
board. The storage compartment and gas manifold module must also be
removed. Disconnect the keyboard cable. Next remove the four (4) screws which
hold the LCD display assembly in place. The assembly can now be removed.
Figure 8: LCD Back panel, fastening screws are circled
