Energizer PORTABLE GAS DETECTION INSTRUMENT Instructions d'exploitation télécharger pdf (Page 17)

6.3 ZERO CALIBRATION MENU

The MINI-SA instrument can be Auto Zeroed at any time. An Auto Zero should

only be performed in an area known to be free of toxic gas or any known

cross sensitive materials. See Section 8.0 for SCOTT INSTRUMENTS sup-

plied calibration gas cylinders. When performing an auto-zero with an oxy-

gen unit, be sure the area contains 20.9% oxygen.

To perform Zero Calibration of the sensor as described in Section 6.2, de-

press the “AUTO ZERO” pushbutton when the ZERO CALIBRATION menu

screen is displayed.

The instrument will display one of the following screens while it calibrates the

appropriate sensor.

<gas> SENSOR

For Toxic Gases ZERO CALIBRATION

SENSOR

For O

ZERO CALIBRATION

The instrument display will count down 2 seconds while the sensor is ze-

roed. After a successful “ZERO CALIBRATION”, the instrument will sound a

“beep” and automatically go back into the Operating Mode.

If, during the “ZERO CALIBRATION”, the unit detects that the sensor is out of

range, an error message will be displayed. See Section 7.0 for a description

of error messages.

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Energizer PORTABLE GAS DETECTION INSTRUMENT Instructions d'exploitation Page 17