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Installation Model 7500ZA
Teledyne Analytical Instruments 10
• Entry of dust into the instrument may result in poor performance.
Use clean tubing and couplings.
•
Sample inlet: Attach clean, dry sample gas to the inlet port.
Note that the calibration gases ( zero and span)
also connect to this port.
Input gas flow t should be constant within the
range of 0.5 L/min ±0.2 L/min.
Sample outlet: Attach tubing for exhausting sample or calibration
gases. The exhaust line should be directed to an
appropriate safe vent depending on the nature of
the sample/calibration gas used.
Purge gas inlet: Used to connect a purge gas for purging the
internal housing of the analyzer. Use dry N
2
or
instrument air for purge gas. (Flow rate is 1L/min
or more. Keep dust or moisture/mist from
entering the purge line.
CAUTION: THIS INSTRUMENT IS DESIGNED TO HANDLE
HAZARDOUS GASES. WHENEVER A FITTING IS
OPENED, USE A NEW FERRULE AND CONE TO
SECURE A GAS TIGHT SEAL. EACH FITTING MUST
BE LEAK CHECKED WHENEVER A CONNECTION
HAS BEEN OPENED OR DISTURBED IN ANY
MANNER.
The internal piping diagram for the Model 7500ZA is shown
below.