EAGLE 2 Operator’s Manual
Calibrating Using the Single Calibration Method • 65
9. Press and release the POWER ENTER RESET button to proceed to the Single
Calibration Apply Gas Screen.
CAL IN PROCESS
is flashing.
10. Connect the tubing from the demand flow regulator to the rigid tube on the probe.
Allow the EAGLE 2 to draw gas for one minute.
NOTE:
If you are calibrating the catalytic combustible channel with a gas concentration
of 1000 ppm or lower, you must use a 24 inch humidifier tube to connect the
demand flow regulator to the rigid tube on the probe.
11. Press and release the POWER ENTER RESET button to perform the calibration.
12. When the span adjustment is made, the EAGLE 2 calculates the range of adjustment,
minimum and maximum, it could have made based on its response level to the
applied gas. This calculated range is independent of the calibration gas value that was
entered in Step 8 and Step 9 above. The adjustment range is included on the result
screen to indicate the condition of the sensor. If the calibration gas value is in the
adjustment range, the span adjustment will pass. If the calibration gas value is out of
the adjustment range, the span adjustment will fail.
If the span adjustment is successful, the following screens display.
In the example above, the EAGLE 2 could have adjusted the reading as low as 35
%LEL and as high as 98 %LEL.
If the span adjustment is not successful, a screen displays that indicates a calibration
failure.
In the example above, the EAGLE 2 could have adjusted the reading as low as 11
%LEL and as high as 43 %LEL. Since the calibration gas value entered was 50
%LEL, the unit failed the span adjustment. The buzzer and alarm LED arrays activate
in a double pulsing pattern. Press and release the POWER ENTER RESET button to
reset the alarm and return to the Select Sensor Screen. Attempt to calibrate again. If
the failure continues, investigate the cause. See “Troubleshooting” on page 67.
SINGLE CALIBRATION
APPLY GAS
CH4 0 %LEL
CAL IN PROCESS
ENTER WHEN DONE
CH4 CALIBRATION
DONE
( 35 - 98%LEL)
REMOVE GAS
SELECT SENSOR
TO CALIBRATE
ESCAPE
> CH4 OXY
H2S CO
FAILED SENSOR
( 11 - 43%LEL)
<CH4>
ENTER TO CONTINUE
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