Specifications

Use of Analytical Module Hardware Test Box, continued
Figure 4-12: Module Hardware Tester
As shown above, the Module Hardware Tester is equipped with the
following components:
Components
• Bead Select Switch – Used to choose which TCD bead to test. A
single module will have beads 1-4 and a double module will have
beads 1-8. Position 9 is used to check for short between beads
and ground.
• Gas Supply Connection – This is a 1/8” port that connects
external gas to the device for use for leak checking.
• Main Valve – This switch is used to regulate whether the
pressure within the system. When set to Inlet, the gas supply is
connected. When set to Block, the pneumatic system of the test
box is isolated so that pressure cannot escape. When set to
Vent, the pneumatic system of the box is vented to release
pressure.
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