MNA0010, Revision B October 2014
31
The Model 7100P Portable analyzer will resume normal RUN mode operation when the UP,
DOWN, or MODE buttons have not be pressed within a 120 seconds period.
For Two Point Calibration:
After the second calibration gas (500 to 1000 ppm O2) has been applied to the analyzer and
the display has stab
ilized, press the “MODE” button. It will display “CAL” while depressed.
The Green RUN LED will flash. After releasing the button, the display will indicate an oxygen
concentration value. Adjust the digital display to read the correct concentration of oxygen by
pressing the UP or Down arrows as required.
Press the “MODE” button again to scroll past the “ALM1” , “ALM2”, and Fault Modes as
indicated on the display.
FIGURE 29
CAL MODE DIAGRAM
Calibration gas should be applied to the analyzer at a similar flow rate and pressure to that of
the sampled gas. Be sure to allow the calibration gas to flow to the sensor until the display
has stabilized. The stabilization period allows time for the calibration gas to flush the gas in
the sampling lines.
The Model 7100P Portable analyzer will resume normal RUN mode operation when the UP,
DOWN, or MODE buttons have not be pressed within a 120 second period.
CAL MODE
Green RUN LED Blinks.
Display indicates % oxygen.
Adjust Ramp Up/Down to display
correct oxygen value.
Press Mode button 3 times
to return to RUN Mode.
RUN MODE