Bacharach PCA3 Spezifikationen PDF herunterladen (Seite 77)

PCA



3 Manual

0024-9473 Rev 4 77

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, Entry Not

Saved” will appear followed

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.

6.9. NO Sensor Calibration

This procedure spans the optional nitric oxide sensor to a known gas

level.

6.9.1. Material Required

•

Calibration Kit (P/N 0024-7059)

•

Gas Cylinder (250 ppm NO in Nitrogen, P/N 0024-1156)

6.9.2. Procedure

1. If not already done, turn ON the analyzer and display the

CALIBRATION LIST screen (refer to Calibration on page 66).

2. Use the ▲▼ buttons to highlight NO, and then press ENT to display the

CALIBRATE NO screen.

NOTE: “Measured” is the current NO reading, while “Applied”

is a known NO level that will be applied for calibration

purposes.

3. Attach a 250 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 900 ppm. An attempt

to calibrate outside this range will cause the message “Bad

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

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Bacharach PCA3 Spezifikationen Seite 77