Calibrating - wtw inoLab Oxi Level 2 Operating Manual

Why calibrate?
When to calibrate?
Calibration
procedure
AutoRead
Calibration protocol
4.3

Calibrating

D. O. probes age. This changes the slope of the probes. As
a result, an inexact measured value is displayed. Calibration
determines the current slope of the probe and stores it in the
instrument.
l After connecting another D. O. probe
l When the probe symbol flashes:
– after expiry of the calibration interval
– after a voltage interruption, e.g. battery change
Calibration is made in water vapour saturated air. Use the
®
OxiCal -SL air calibration vessel (accessory) for calibration.
The AutoRead function is automatically activated during
calibration. AR flashes on the display. The calibration
process is finished when AR stops flashing.
The calibration protocol contains the calibration data of the
current calibration. You can call up the calibration protocol
by outputting the data storage ().
Note
You can automatically print out a calibration protocol after
the calibration. To do so, switch on the printer before the
calibration (Print LED lights up green). After a valid
calibration, the protocol is printed.
Operation
95