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ECA 450 Calibration

Instruction 0024-9400

3.3 Starting and Ending a Calibration Procedure

Start any calibration procedure by first pressing the CALIBRATE shortcut

key. Before calibration can begin, however, a 4-place alphanumerical

password must be entered. Enter the password by first pressing the ENTER

key, and then using the

∧ ∨ and < > keys until the correct password is

displayed.

Note: The calibration password is provided on a separate card supplied with

the analyzer.

««««CALIBRATION«««««

« PASSWORD ----

Again press the ENTER key. If the correct password was entered, the

following Calibration List screen will appear.

Note: Sensors that are not installed will not appear in the Calibration List.

««CALIBRATION LIST««

ª Pressure

T-Stack

T-Air

CO-LO

SO2

NO2

CO-HI

Use ∧∨ keys until cursor is in front of desired calibration function; then press

ENTER to display that function’s corresponding Calibrate screen.

After the desired calibration procedures have been completed, press the ESC

key to return to the Combustion Test HOLD screen.

3.4 Calibrate Pressure Sensor

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

Material Required:

• Calibration Pressure Fixture (Section 3.2)

• Bellows (adjustable)

• Micro manometer Range: ±8 in. H

O column (±20 mb)

Accuracy: ±0.01 H

O column (±0.025 mb)

Procedure:

1. Enter Calibration List screen; then choose Pressure per Section 3.3 to

display the PRESSURE CALIBRATE screen.

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Bacharach Flue-Gas Sample Conditioning System Spezifikationen Seite 55