43 • Calibration Mode
03 Series Operator’s Manual
6. Push the calibration adapter onto the 03 Series’ sensor face as shown
in Figure 8. The calibration adapter secures itself to the instrument by
latching on to two recesses in the instrument’s rear case. The rubber
boot (if installed) does not need to be removed to install the adapter.
Figure 8: Installing the Calibration Adapter
7. Turn the regulator on/off knob counterclockwise to open it. Calibration
gas will begin to flow.
8. Once the gas reading reaches 10% of the calibration gas value (HS-03
and CO-03 units) or 18.9% (OX-03 units), “E--CAL” will begin to flash
and a countdown will begin. The countdown’s duration is defined by the
value of the One Touch Cal Time parameter accessed in the 03 Series
User Setup Program.
If the gas reading never reaches 10% of the calibration gas value (HS-
03 and CO-03 units) or 18.9% (OX-03 units), the countdown will never
start and the instrument will remain in the G--IN screen shown in Step 3.
Press and hold the AIR button for 2 seconds to cancel the calibration
then continue with Step 12. See “Troubleshooting” on page 63 to
investigate the cause of the issue.
9. At the end of the countdown, the 03 Series will attempt to make a span
POW ER
MO DE
CO-03
Calibration
Adapter
AIR
E--CAL.
ppm
60
10
