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Thermo Scientific 42iQHL Instruction Manual page 25

High level no-no2-nox analyzer

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3. Connect the pump exhaust 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.
Equipment Damage DO NOT connect the pump exhaust port to the
CHAMBER bulkhead. This can cause permanent damage to both the
cooler and the photomultiplier tube.
4. Plug the pump into an outlet of the appropriate voltage and frequency.
5. If the equipment contains the Bypass option, the Bypass pump is now
internal to the instrument. Connect the Bypass bulkhead to a suitable
vent. The length of the exhaust line should not exceed 10 feet.
6. Connect the bypass pump exhaust to a suitable vent or ozone scrubber.
7. If the optional zero/span solenoid valves are installed, connect a source
of NO
-free air to the ZERO IN bulkhead, and connect a source of
x
NO span gas to the SPAN bulkhead.
8. Connect a suitable recording device to the rear panel connector. For
detailed information about connecting to the instrument, refer to:
"Connecting External
Communications >
on page 3-108.
9. Plug the instrument into an outlet of the appropriate voltage and
frequency.
Devices" on page
9-1
"Analog
I/O" on page
Installation and Setup
Setup Procedure
3-107
and
"Digital
I/O"
42iQHL Instruction Manual
2-7

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