Calibration

Any errors detected during warm-up will be listed on the display immediately fol- lowing warm-up. For example, the screen to the right shows that the battery is low. Correct any errors before proceeding. Refer to Section 7.3 for a listing of error messages and their meaning.

2.Display the MAIN MENU by pressing the MENU (F2) button. If necessary, press ESC until MENU appears above F2.

3.Use the buttons to highlight CALIBRATION, and then press ENT to dis- play the CALIBRATION LIST screen.

4.Use the buttons to highlight the sensor to be calibrated, and then perform the calibra- tion procedure for that sensor as described in the following sections.

ERRORS DETECTED

Low Battery

MENU

F1 F2 F3

MAIN MENU

FUEL

PRESSURE

MEMORY

SETUP

CALIBRATION

DIAGNOSTICS

STATUS

MENU

F1 F2 F3

5.3 Pressure Sensor Calibration

This procedure calibrates the pressure sensor to a known pressure value.

Material Required:

• Bellows

• Manometer

- Range: ±8 in. of water column (±20 mb)

- Accuracy: ±0.01 in. of water column (±0.025 mb)

Procedure:

NOTE: The unit-of-measure for pressure is selected per Section 3.7. In the following procedure inwc is selected, but note that any unit-of-measure can be used for calibration purposes.

1.Assemble the pressure sensor calibration equipment as shown in Figure 5-1, but DO NOT connect the analyzer to the calibration equip- ment at this time.

2.If not already done, turn ON the analyzer and display the CALIBRATION LIST screen per Section 5.2.

3.Use the buttons to highlight Pressure, and then press ENT to dis-

5-2

Instruction 24-9448

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Bacharach 24-9448 manual Pressure Sensor Calibration, Material Required, Procedure

24-9448 specifications

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