Connecting The High Voltage And Pulses Cables - Thermo Scientific TRACE 1600 Hardware Manual

9
Adding Modules
Adding a PDD Module
Connecting the Discharge Gas Supply

Connecting the High Voltage and Pulses Cables

500 TRACE 1600/1610 Hardware Manual
4. Observe the needle of the output pressure gauge for 15 minutes. There will be a slight
initial drop. If it does not move after that, consider all the connections are tight.
5. If necessary, use an electronic leak detector to locate any leaks. If a leak detector is not
available, tighten all the fitting and repressurize the system for another test.
6. Uncap the outlet tube of the helium purifier and purge the system for 15 to 30 minutes at
60 - 80 mL/min to eliminate air from the purifier getting material.
 To connect the discharge gas supply
1. Connect the helium purifier outlet port to a port of the Tee connector provided by using
the 1/16-in. o.d. connecting tube provided.
2. Connect the second port of the Tee connector to the carrier gas inlet port, located on the
rear panel of the GC, by using a sufficient piece of the stainless steel connecting tube
provided and the appropriate fitting.
3. Connect the last port of the Tee connector to the inlet of the discharge gas restrictor.
4. Connect the outlet tube of the restrictor to a flow measuring device and adjust the helium
pressure to obtain a flow of about 30 mL/min.
5. After setting the flow rate, connect the outlet of the restrictor to the discharge gas inlet on
the PDD module. See
Figure 501. Gas Supply Connections

To connect the cables from the pulse generator to the PDD module
WARNING Never the high voltage discharge cable must be disconnected when the pulse
generator is turned on. Dangerous high voltage is present: 3700 V Peak; 170 mA Peak.
To avoid accidental disconnection of the high voltage discharge cable (mainly) and the
pulses cable from the pulse generator, the safety covers must be installed. See
Figure 501.
Figure 502.
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