Bacharach Portable Combustion Analyzer Spécifications télécharger pdf (Page 72)

100

PCA



3 Manual

72 0024-9472 Rev 3

NOTE: A CO-only calibration can be done by pressing F3 in Step 5

(instead of

ENT).

6.8. SO

Sensor Calibration

This procedure spans the optional sulfur dioxide sensor to a known gas

level.

6.8.1. Material Required

•

Calibration Kit ( P/N 0024-7059)

•

Gas Cylinder (100 ppm SO

in Nitrogen, P/N 0024-1158)

6.8.2. Procedure

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

CALIBRATION LIST screen (refer to Calibration on page 62).

2. Use the ▲▼ buttons to highlight SO

, and then press ENT to display

the CALIBRATE SO

screen.

NOTE: “Measured” is the current SO

reading, while

“Applied” is a known SO

level that will be applied for

calibration purposes.

3. Attach a 100 ppm SO

cylinder to the regulator of the calibration fixture

shown in Figure 6-12 on page 76.

4. Use the ▲▼ and

◄►

buttons to enter an applied value that exactly

equals the concentration stamped on the SO

cylinder.

NOTE: The calibration range is from 9 to 1,800 ppm. An

attempt to calibrate outside this range will cause the

message “Bad Calibration Wrong CAL Entry” to appear in

the following step.

Figure 6-9. SO

Sensor Calibration

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

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

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Bacharach Portable Combustion Analyzer Spécifications Page 72

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