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ECA 450 Calibration

Instruction 0024-9400

3 Calibration

Bacharach recommends that the ECA 450 be calibrated by your nearest

Bacharach Service Center (refer to Section 6.3). The analyzer, however, can

be calibrated in the field if your facility has the necessary equipment and

qualified personnel to perform the procedures described in this section.

Important! To prevent the loss of data during calibration, perform the

following procedures with a fully charged battery pack, or with the AC

adapter connected to the analyzer.

3.1 Initial Sensor Check

Important! Before turning on the analyzer or performing any of the calibration

procedures, ensure that the analyzer will be sampling fresh air and the probe

is at room temperature.

When the analyzer is first turned on and allowed to cycle through its

60 second warm-up period, and while sampling fresh air, the sensors are

checked (read) and calibrated (set) to the following ambient conditions:

• Oxygen sensor spanned to 20.9%

• All remaining gas sensors are zeroed

• Pressure sensor zeroed

If a sensor is found to be in error during warm up, an error message will

appear at the bottom of the screen describing the nature of the problem (refer

to Section 5.4 Troubleshooting Guide). Correct any sensor errors before

proceeding with these calibration procedures.

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Bacharach Flue-Gas Sample Conditioning System Especificaciones Pagina 53