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TCD Analyzer
use the Cal Range. If your analyzer has drifted more than 10 %, calibrate
each range individually.
Connect the calibration gases according to the instructions given in
Section 3.4, Gas Connections, observing all the prescribed precautions.
CAUTION:
ALWAYS ALLOW 4-5 HOURS WARM-UP TIME
BEFORE CALIBRATING, IF YOUR ANALYZER HAS
BEEN DISCONNECTED FROM ITS POWER SOURCE.
THIS DOES NOT APPLY IF THE ANALYZER WAS
PLUGGED IN BUT WAS IN STANDBY.
Note: Shut off the gas pressure before connecting it to the
analyzer and be sure to limit pressure to 40 psig or less when
turning it back on.
Readjust the gas pressure into the analyzer until the flowrate
through the sensor settles between 50 to 200 cc/min (approximately 0.1
to 0.4 scfh).
If you are using password protection, you will need to enter your
password to gain access to either of these functions. Follow the
instructions in Sections 4.5.1 to enter your password. Once you have
gained clearance to proceed, you can enter the Zero or Span function.
4.8.1 Zero Cal
The Zero button on the Menu screen is used to enter the Zero
calibration function. Zero calibration can be performed in either the
automatic or manual mode.
CAUTION:
IF YOU ARE ZEROING THE CAL RANGE BY ITSELF
(MULTIPLE APPLICATION ANALYZERS ONLY), USE
MANUAL MODE ZEROING. IF YOU WANT TO
CALIBRATE ALL OF THE RANGES AT ONCE
(MULTIPLE APPLICATION ANALYZERS ONLY), USE
AUTO MODE ZEROING IN THE CAL RANGE.
Make sure the Zero calibration gas source is connected to the
instrument (see Section 3.3.1). Press the Zero button on the Menu screen
to enter the Zero Calibration function.
Menu screen:
Teledyne Analytical Instruments
Operation
87
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