Auto Mode Zeroing - Teledyne 7300A Operating Instructions Manual

Infrared Gas Analyzer
Make sure the zero gas is flowing to the instrument. If you get a
Observe the precautions in sections 4.4 and 4.4.1, above.Scroll to ZERO
function buy using UP/DOWN control and enter the zero function mode. The
screen allows you to select whether the zero calibration is to be performed
automatically or manually. Use the UP/DOWN key to toggle between
and zero settling. Stop when
Press Enter to begin zeroing.
The beginning zero level is shown in the upper left corner of the display. As
the zero reading settles, the screen displays and updates information on
ppm/second (unless the Slope starts within the acceptable zero range and does
not need to settle further). The system first does a course zero, shown in the
lower right corner of the screen as
a fine zero, and displays
Then, and whenever Slope is less than 0.01 for at least 3 min, instead of
Slope you will see a countdown:
steps in the zeroing process that the system must complete, AFTER settling,
before it can go back to Analyze . Software zero is indicated by
lower right corner.
The zeroing process will automatically conclude when the output is within
the acceptable range for a good zero. Then the analyzer automatically returns to
the Analyze mode.
If you want to calibrate ALL of the ranges at once
(multiple application analyzers only), use auto mode
zeroing in the Cal Range.
message while zeroing skip to section 4.4.1.3.
4.4.1.1

Auto Mode Zeroing

, for approximate 3 min.
Teledyne Analytical Instruments
appears, blinking, on the display.
, for approximate 3 min, and then does
, , and so fourth. These are software
Operation 4
in
in the
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