Bacharach Portable Combustion Analyzer Spécifications télécharger pdf (Page 71)

PCA



3 Manual

0024-9472 Rev 3 71

NOTE: If the sensor’s output is too low to be usable, then

the message “Bad Cal

ibration Sensor End of Life, Entry

Not Saved” will appear. The sensor will now be marked as

being BAD in the DIAGNOSTICS screen.

6. Turn OFF regulator of calibration fixture and remove the CO cylinder.

7. Attach a combination 1,000 ppm CO and 1,000 ppm H

cylinder to the

regulator of the calibration fixture, and then use the ▲▼ and

◄►

buttons to enter an applied value that exactly equals the CO

concentration stamped on the cylinder.

8. Adjust the regulator for a flow meter indication of approximately 2  SCFH,

and then press ENT to display the CALIBRATE H

screen.

NOTE: The calibration range is 400 to 1,500 ppm.

Calibrating outside this range causes the message “Bad

Calibration Wrong CAL Entry” to appear in the next step.

Figure 6-8. CO

LOW

Sensor Calibration

9. Wait until the measured reading stabilizes (approximately 3  minutes),

and then press ENT to calibrate the H

Measured value to that of the

applied value; after which the message “Good Calibration” should briefly

appear followed by the CALIBRATION LIST screen being re-displayed.

NOTE: If the sensor’s output is low, but still usable, then

the message “Good Calibration WARNING Low Sensor”

will appear. The sensor will now be marked as being Low

in the DIAGNOSTICS screen.

NOTE: If the sensor’s output is too low to be usable, then

the message “Bad Calibration Sensor End of Life” will

appear followed by the CALIBRATION LIST screen being

re-displayed. The sensor will now be marked as being BAD

in the DIAGNOSTICS screen.

10. Turn OFF the regulator and remove the gas cylinder.

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Bacharach Portable Combustion Analyzer Spécifications Page 71