Operation; Calibration; Select A Standard Solution; Perform A Calibration - OHAUS a-AB23EC Manual De Instrucciones

a-AB23EC Bench Conductivity Meter

4. OPERATION

The first time you use the conductivity electrode, it should be calibrated before taking
any measurement.
WARNING Do not operate the equipment in hazardous environments. The
equipment is not explosion protected.
WARNING When using chemicals and solvents, comply with the instructions
of the chemical producer and the general lab safety rules.
4.1

Calibration

When using the conductivity meter, you have to select a standard solution for
calibration.
4.1.1

Select a standard solution

To do this:
1. Press the Standard button.
2. Press the
3. Press the Read/Enter button to confirm the setting or press the Exit button to
return to the measurement screen.
The 4 predefined standard solutions are:
10 µS/cm
The meter will then display the selected
standard solution.
Check figure 4-1 as an example. The display
shows 1413 at the right corner of the screen.
Tables for automatic temperature compensation are programmed in the meter for each
standard (see the appendix).
4.1.2

Perform a calibration

When performing a calibration, Ohaus recommends using Auto End Point Mode. After
powering the meter on, be sure the top of the screen shows
is in Auto End point Mode.
or button to switch between the 4 standard solutions.
84 µS/cm 1413 µS/cm
Figure 4-1 Standard solution
EN-9
12.88 m S/cm
to ensure the meter