RKI Instruments Gas Tracer - Manual (Page 93)

Gas Tracer Operator’s Manual Calibration Mode • 85
7. Press and release the POWER ENTER button. The single
calibration screen displays. The gas reading flashes.
8. Connect the humidifier from the demand flow regulator to the
rigid tube on the probe. Allow the calibration gas to flow for two
minutes.
9. If necessary, use the AIR▲ and (SHIFT)▼ buttons to adjust the
reading to match the concentration listed on the calibration
cylinder.
If the reading already matches the concentration listed on the
calibration cylinder, press and release the AIR▲ button then press
and release the (SHIFT)▼ button so that the instrument sees a
change and resets the calibration date.
10.Press and release the POWER ENTER button to save the span
value. The LCD will indicate that the calibration has ended, then
the single calibration menu displays.
11.Disconnect the humidifier from the probe.
NOTE: Grasp the humidifier tube assembly by the clear tubing at the
end, not the humidifier tube itself.
12.Unscrew the demand flow regulator from the calibration cylinder.
13.Use the (SHIFT)▼ button to navigate to the ESCAPE menu item,
then press and release the POWER ENTER button to return to the
PPM CAL
menu in Calibration Mode.
14.Use the (SHIFT)▼ button to navigate to the NORMAL menu item,
then press and release the POWER ENTER button to return to
Measuring Mode.
Performing a Bump Test
NOTE: The BUMP DSP menu item in Maintenance Mode is factory
set to OFF. The BUMP menu item will not appear unless
BUMP DSP
is set to ON. See “Turning the Bump Test
Function On or Off” on page 157 for instructions.
0
ppm
MAINTENANCE
CH
4
ONE CAL