Bacharach Flue-Gas Sample Conditioning System Especificações descarregar pdf (Página 58)

Calibration ECA 450

54 Instruction 0024-9400

2. Plug simulator’s K-type connector into analyzer’s T-AIR jack (see

Figure 1-1).

3. Enter Calibration List screen; then choose T-Air per Section 3.3 to

display the CALIBRATE TA-ZERO screen.

4. Wait until Measured reading on screen stabilizes. Then use the ∧∨ and

< > keys to enter an Applied value of 32 °F (0 °C).

Typical Calibrate TA-Zero Screen During Calibration:

«CALIBRATE TA-ZERO««

Measured 31.2°F

Applied 032.0°F

5. Press ENTER to calibrate the analyzer’s Measured value to that of the

Applied value; after which the message “Good Calibration” should appear

followed by the CALIBRATE TA-SPAN screen.

TA-Span Procedure:

6. Adjust simulator to 212 °F (100 °C).

The calibration range is from 194 to 230 °F (90 to 110 °C). An applied

value entry that is outside this range will cause the message “Bad

Calibration Entry” to appear.

7. Wait until Measured reading on screen stabilizes. Then use the ∧∨ and

< > keys to enter an Applied of 212 °F (100 °C).

Typical Calibrate TA-Span Screen During Calibration:

«CALIBRATE TA-SPAN««

Measured 200.0°F

Applied 212.0°F

8. Press ENTER to calibrate the analyzer’s Measured value to that of the

Applied value; after which the message “Good Calibration” should appear

along with the Calibration List screen being redisplayed.

9. Remove calibration equipment.

3.7 Calibrate HC Sensor

The following procedure spans the optional combustibles sensor to a known

gas level.

Material Required:

• Calibration Gas Fixture (Section 3.2)

• Gas Cylinder: 2.5% CH

(50% LEL Methane) (refer to Section 6.2)

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Bacharach Flue-Gas Sample Conditioning System Especificações Página 58