Installation
Setup Procedure
Thermo Electron Corporation Model 42i Low Source Instruction Manual 2-3
7. Re-install the cover.
Setup Procedure Use the following procedure to setup the instrument.
1. Connect the sample line to the SAMPLE bulkhead on the rear panel
(Figure 2-3). Ensure that the sample line is not contaminated by dirty,
wet, or incompatible materials. All tubing should be constructed of FEP
Teflon®, 316 stainless steel, borosilicate glass, or similar tubing with an
OD of 1/4-inch and a minimum ID of 1/8-inch. The length of the
tubing should be less than 10 feet.
Note Gas must be delivered to the instrument at atmospheric pressure. It
may be necessary to use an atmospheric bypass plumbing arrangement as
shown in Figure 2-4 if gas pressure is greater than atmospheric pressure.
2. Connect the air dryer to the DRY AIR bulkhead.
3. Connect the EXHAUST bulkhead to a suitable vent or ozone scrubber.
The exhaust line should be 1/4-inch OD with a minimum ID of
1/8-inch. The length of the exhaust line should be less than 10 feet.
Verify that there is no restriction in this line.
4. Connect a suitable recording device to the rear panel connector. See the
“Operation” chapter for more information about the rear panel
pin-outs.
5. Plug the instrument into an outlet of the appropriate voltage and
frequency.
WARNING The Model 42i Low Source is supplied with a three-wire
grounding cord. Under no circumstances should this grounding system
be defeated.
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