Bacharach PCA3 Specifikace stáhnout pdf (Strana 79)

PCA



3 Manual

0024-9473 Rev 4 79

NOTE: “Measured” is the current NO

reading, while

“Applied” is a known NO

level that will be applied for

calibration purposes.

3. Attach a 100 ppm NO

cylinder to the regulator of the calibration fixture

shown in Figure 6-12 on page 80.

4. Use the ▲▼ and

◄►

buttons to enter an applied value that exactly

equals the concentration stamped on the NO

cylinder.

NOTE: The calibration range is from 9 to 150 ppm. An

attempt to calibrate outside this range will cause the

message “Bad Calibration Wrong CAL Entry” to appear in

the following step.

Figure 6-11. NO

Sensor Calibration

5. Adjust regulator for a flow meter indication of approximately 2  SCFH.

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

and then press ENT to calibrate the NO

measured value to that of the

applied value. 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 Calibrat

ion 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, Entry

Not Saved” will appear follow

ed by the CALIBRATION

LIST screen being re-

displayed. The sensor will now be

marked as being BAD in the DIAGNOSTICS screen.

6. Turn OFF regulator and remove the gas cylinder.

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 103 104

Žádné komentáře

Bacharach PCA3 Specifikace Strana 79