Span Cal; Auto Mode Spanning - Teledyne 7120 Operating Instructions Manual

Infrared Analyzer
b. Check for leaks downstream from the sensor, where contamina-
c. Check flowmeter to ensure that the flow is no more than
d. Check temperature controller board.
e. Check gas temperature.
If none of the above as indicated, the sensor may need to be replaced.
Check warranty, and contact Analytical Instruments Customer Service.

4.4.2 Span Cal

The Span button on the front panel is used to span calibrate the analyzer.
Span calibration can be performed in either the automatic or manual mode.
CAUTION: If you are spanning the Cal Range by itself (multiple
Make sure the span gas is flowing to the instrument.
Observe all precautions in sections 4.4 and 4.4.2, above. Scroll SPAN and
enter the span function. The screen that appears allows you to select whether the
span calibration is to be performed automatically or manually. Use the UP/
DOWN key to toggle between AUTO and MAN span settling. Stop when AUTO
appears, blinking, on the display.
Enter to move to the next screen.
Use UP/DOWN key to change the span setting value.
tion may be leaking into the system.
200SCCM
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
spanning in the Cal Range.
4.4.2.1

Auto Mode Spanning

Select span
mode: AUTO
Span Val:
<ENT> To begin span
Teledyne Analytical Instruments
Operation 4
2Ø.ØØ %
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