RKI Instruments GX-2009 Manual - Manual (Page 42)

37 • Calibration Mode GX-2009 Operator’s Manual
described in “Performing a Fresh Air Adjustment” on page 30.
2. At the ONE CAL screen, press and release the POWER MODE button.
A channel selection screen appears that displays the CH
4
channel.
If the CH4 channel is the one you want to span adjust, skip to Step 4.
If you want to span adjust a different channel, continue with Step 3.
3. Scroll through the channels using the AIR button until the channel you
want to span adjust is displayed. The gas channels are displayed in the
following order along with an escape option: CH
4
, oxygen, H
2
S, CO,
ESCAPE.
If you want to abort the span adjustment, scroll through the channels
until you arrive at the screen that indicates “ESCAPE” to the right of the
battery icon, then press and release the POWER MODE button to
return to the ONE CAL screen.
4. Use the sample tubing to connect the calibration adapter plate to the
regulator. Attach the tubing to the adapter plate on the inlet side as
shown below in Figure 11.
Figure 11: Calibration Kit Assembly
5. Confirm that the regulator on/off knob is turned all the way clockwise
(closed) and screw the calibration gas cylinder onto the regulator.
- - -
ONE CAL
CH4 %LEL
O
2
CO
Flow
To Fixed Flow
Regulator
Calibration Tubing
T T u b in g
Adapter Plate
%L
E
L
H
2 S