Enmet OX-2000 Manual do Utilizador descarregar pdf (Página 14)

ENMET Corporation TX2000 / OX2000

4.3 Calibration

Verify that the TX/OX 2000 is working properly by calibration, performed with the help of a calibration gas. If

the response is not adequate or when any of the following occur, perform a complete calibration.

♦ At least every 6 months for the

♦ Whenever the instrument has been exposed to high concentrations of gas.

♦ When an instrument has been stored for more than one month without use.

♦ When changing of sensors.

♦ If “DEF16” fault appears (measurement too negative).

Within the calibration menu, "visible and audio" alarms are not triggered.

“Calibration” menu consists of:

 Setting the zero in clean air and the sensitivity with calibration gas. See Section 4.3.1

 There is no zero adjustment for the OX2000. See section 4.3.2

4.3.1 TX2000 Calibration

Enter maintenance menu.

Press both switches at the same time for 5 seconds:

(During this time, measurement is displaying)

5 seconds later, the maintenance pictogram appears

• Release the switches

• At this time, the operator has 5 seconds to enter the

maintenance menus or the instrument returns to operation

mode.

· Then proceed with following

Press BACKLIGHT switch to toggle

between (PrG) and (CAL)

to continue See Sections:

4.2 for Programming

4.3.1A for Calibration

Figure 4: Entrance to Maintenance Menu Flow Chart

Do you want to reach

the menus?

YES

 No action on switches

 Return to normal operation,

5 seconds late

 Press ALARM switch 3 times

 Maintenance pictogram is flashing

 You have access to:

Calibration (CAL) and

Programming (PrG) menus.

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Enmet OX-2000 Manual do Utilizador Página 14