6 Osmetech OPTI™ Repair Procedures
Service Manual – Osmetech OPTI™ Analyzer
6-21
Gas manifold screws
Lee Valve
Gas Aerodyne
Module
Figure 18: Peristaltic pump nipple connectors
Gas Manifold Module
Removal
The gas manifold module is located on the right rear side of the analyzer.
The calibration gas cylinder is screwed into the module to form a gas-tight seal.
The gas manifold module provides pressure regulation and controls the flow of
gas when required for cassette calibration. To remove the module, first open the
lower portion of the analyzer. Disconnect the Tygon tubes which connect to the
peristaltic pump and clean-out port. Next disconnect the cable connector J9 on
the Main Board. The module is held in place by two (2) screws. After removal
of these screws, the module may be pulled out of the analyzer.
To replace the Lee valve, desolder the wires from the old valve.
To remove the Aerodyne gas module, remove the two (2) screws holding the gas
manifold to the plastic housing.
Figure 19: Gas manifold module
Peristaltic Pump motor
Peristaltic Pump nipples
