RKI Instruments Gas Tracer - Manual (Page 73)

Gas Tracer Operator’s Manual Calibration Mode • 65
Calibrating with the Auto Calibration Method
This section describes calibration using the auto calibration method.
To calibrate using the single calibration method, see “Calibrating with
the Single Calibration Method” on page 68.
NOTE: If the combustible gas channels are calibrated to a gas other
than methane, use an appropriate multigas cylinder or use
single calibration to calibrate the combustible channels.
1. You may only calibrate either the standard 3 sensors or the
%volume combustible sensor at a time. Once you are finished, you
are returned to the initial AUTO CAL screen and must begin the
auto calibration process again.
2. Use the AIR▲ and (SHIFT)▼ buttons to display the AUTO CAL
menu item, press and release the POWER ENTER button to display
the calibration values screen. If you want to exit back to the main
menu without completing a calibration, press and release the
DISPLAY (ADJ) button.
3. Use the AIR▲ or (SHIFT)▼ buttons to alternate between the 3-gas
and the %volume combustible gas calibration values screens.
4. The gas concentrations displayed in the calibration values screens
must match the gas concentrations listed on the calibration
cylinders. If all concentrations match, go to step 12. If one or more
concentrations do not match, continue with step 5.
5. To adjust the values on the screen, hold down the (SHIFT)▼ button,
then press the DISPLAY(ADJ) button and release both. The %LEL
50
12.0
50
%LEL
%
ppm
MAINTENANCE
CH
4
O
2
AUTO CAL
CO
100
vol%
MAINTENANCE
CH
4
AUTO CAL