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Installation
shielded cable (nominally No. 22 wire size) between the analyzer output
connector and the recording equipment. See Figure 3-1.
Note: The signal output connector must be removed before
closing the analyzer cover.
3.2 Gas Connections
Inlet gas connections are made at the gas control valve mounted on
the upper panel. Connect the sample or calibration gas to the gas control
valve using the 1/8" tube connector on the gas control valve. See Figure
3-2.
Note: To limit sensor contamination it is recommended that you
install an inline sample filter in the sample in line.
CAUTION:
HYDROGEN IS A HIGHLY FLAMMABLE GAS.
UTMOST CARE IS REQUIRED IN MAKING LEAK-
TIGHT CONNECTIONS TO THE INSTRUMENT. DO
NOT OVER TIGHTEN THE INLET GAS FITTING. USE
A COMMERCIAL SOAP SOLUTION OR OTHER LEAK
DETECTION METHOD TO ENSURE THAT ALL GAS
CONNECTIONS ARE LEAK-FREE.
Connect a sample return line to the 3/16" barbed hose connection
which is located above the flowmeter as shown in Figure 3-2. Make sure
Teledyne Analytical Instruments
Figure 3-1: Electrical Connections
Model 2750
20
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