SERVOPRO NOx Analyzers Page
ZERO
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From the Manual Calibration menu press to access the Manual Zero Calibration
screen.
Make sure the analyzer is in the range you wish to calibrate. Use the Up/Down arrows
to go to the desired range. The screen illustration above shows the range (R1)
next to the maximum range limit (3.000 ppm).
In the upper-right corner of the screen, you will see a status line that indicates how the
calibration gas is being introduced into the analyzer. In this case, (Cal) Via Pump is
displayed. The other option is (Cal) Via Valves. See Calibration Setup for details.
Introduce zero gas into the rear of the analyzer. Press to go to the Diagnostic
Values screen to view the current diagnostic values. Check the temperatures and
NOTE: Zero calibration should be performed before a span calibration.
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