testo 252 Bedienungsanleitung Seite 85

Configuration menu / Parallel measurements
The settings in the configuration menu remain even
after the instrument is switched off if the
configuration menu is gone through right to the
end i.e. until the jump back to the measurement
menu.
Parallel measurement of pH and conductivity
All of the pH and conductivity sensors can be
combined
.
"no pH", or "no Cond" should not be selected
The temperature sensor in the conductivity
electrode is always used for the automatic
temperature compensation of both, pH and
conductivity measurement.
In this way pH electrodes without an integr-
ated temperature have automatic temperature
compensation.
Measuring conductivity without pH
"no pH" in the pH configuration menu can be
switched on via the arrow keys. In this way the
pH parameter not in use is switched off.
Therefore the following can be avoided:
- Measurement errors such as electostatic
discharge in the high impedant pH amplifier
- Error messages which block the trans-
mission of measured data from the
testo 252 to the logger and to the
PC adapter. c.f. P. 28, 29, 38 and
"Accessories".
The same applies to other probe combinations and
parallel measurements.
User Instructions
13