Oldham iTrans, User Manual

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iTrans Fixed Point Single/Dual Gas Monitor Operation
(P/N: 77023554-1) iTrans User Manual 5-15
the current reading will be displayed on the top line of the LED display. To abort
calibration at any time, press the “Mode” key.
NOTE: Check and verify span setting before starting a calibration.
NOTE: Please refer to Appendix D for a complete list of factory default span
gases.
NOTE: Flow rate for calibration is 0.5 liter per minute (LPM) except for NH
3
,
ClO
2
, Cl
2
, NO
2
, SO
2
, and HCl which require 1.0 LPM.
5.6.13. Changing Span Gas Concentration
The span option is designated with a
flashing “S” in the status bit with the
current span value next to it. To
change the span value, press the “

”
key during the 10-second countdown.
If you do not press the “

” during the
10-second countdown, the
will return to the Normal Operating
Mode. If you initiate the change span
option, the status bit will start to flash
and the
span value can now
be changed.
Figure 5-26. Sample Span Gas
Concentration Display
The current span value is displayed on
the top line of the LED display. Use
the “

” and “

” keys to change the
span value. When the desired value is
reached, press the “

” key to save
changes. Pressing the “Mode” key or
letting the timer count down to zero
without saving the new value, will
take you back into the Programming
Mode.
Figure 5-27. Flashing Status Bit