iTRANS 2
FIXED POINT SINGLE OR DUAL GAS MONITOR
WITH DUAL ANALOG OUTPUTS
USER MANUAL
Revision 7.0
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. 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 5-256 Sample Span Gas
Concentration Display
Figure 5-267 Flashing Status Bit
NOTE: If the “↵” key is not pressed, the new span value will not be saved.
NOTE: Span Gas Concentration for combustibles can be set from 0% to 100%LEL. For the sake
of resolution, we suggest that Span Gas Concentration should be set above 20% LEL.
5.6.14 Sensor Span Reserve
The span reserve option is designated with an “r” in the status
bit. The current span reserve is displayed on the top line of
the LED display.
Figure 5-278 Sample Span
Reserve Display
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