Industrial Scientific iTrans 77023554, Manual

Page: 52 / 94

Operation iTrans Fixed Point Single/Dual Gas Monitor
5-10 INDUSTRIAL SCIENTIFIC (P/N: 77023554)
5.6.3. Set Low Alarm
The low alarm setpoint is designated with an
“L” displayed in the status bit and current low
alarm value displayed next to it. To change
the low alarm setpoint, press the “

” button
during the 10-second countdown. If you do
not press “

” during the 10-second
countdown, the will return to the
Normal Operating Mode. If you initiate the
low alarm option, the status bit will start to
flash and the
low alarm setpoint
can be changed by using the “

” and “

” keys.
Figure 5-16. Sample Low Alarm
Setpoint Display
When the desired value is reached, press the “

” key to accept and save the new value. If
the value is not saved before the time-out, the will go back to the
Programming Mode.
5.6.4. Set High Alarm
The high alarm setpoint is designated with an “H” displayed in the status bit and the
current high alarm value displayed next to it. To change the high alarm setpoint, press
the “

” button during the 10-second countdown. If you do not press “

” during the 10-
second countdown, the will return to the Normal Operating Mode. If you
initiate the high alarm option, the status bit will start to flash and the high
alarm setpoint can be changed by using the “

” and “

” keys.
When the desired value is reached, press the “

”
key to accept and save the new value. If the
value is not saved before the time-out, the
will go back to the Programming
Mode.
5.6.5. 4-20 mA Analog Output Range
The range of 4-20 mA analog output is set to full
range as factory default. For full range values,
see Appendix D. If the user desires to change
the output scaling of the 4-20 mA analog signal,
they can do so.
Figure 5-17. Sample High Alarm
Setpoint Display
NOTE: Only the upper end range can be changed. The low end is always set for 4 mA.