OdaLog
®
Gas Logger User Manual
P/N: 10-1000
Revision: F, Issued: October 2019
Page: 26
9.6 Span Set
Set the calibration level via the
OdaStat-G™
software package “Instrument Parameters” section to match
the level stated on the calibration mixture cylinder that is being used.
Insert the calibration fitting [Part No 11-0001] over the sensor in the bottom of the OdaLog
®
, as shown in
Figure 6.
Attach regulator to gas cylinder and fit plastic tubing over an inlet on the calibration adaptor (Figure 6).
Open regulator and allow gas to pass over the sensor at the flow rate and for the flow time as detailed in
Table 5.
After waiting for the time shown in Table 5, the gas reading on screen should have stabilised and
calibration can be performed as follows:
Ensure gas is still flowing over sensor.
Press & hold down button until screen progresses past through the menus until “SPAN” appears on screen,
then release button. Right LED will flash to indicate the instrument is in Span mode.
Place magnetic base of Allen Tool provided on the right hand side of the LCD display above the wording
“SPAN”.
“DONE” will appear briefly and the LCD will return to the “INST” screen, indicating a successful
calibration OR ,
“bAd1” or “bAd2” will appear indicating the span value saved will be inaccurate due to a damaged
or faulty sensor (See Section 9.7)
“FAILED” calibration (sensor will not save Span value). LCD will return to “INST” screen (See
Section 9.7).