ELMETRON CX-401, Руководство пользователя

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4. THE OUTSIDE VIEW
On the front wall of the meter there is a LCD display (Pic. 1), on which
depending on the chosen function following symbols are displayed:
-
result of the pH measurement in pH units;
- result of the redox potential measurement in mV;
-
result of the conductivity or salinity measurement;
-
result of the oxygen concentration in % or mg/l
- time and date.
Choosing the function by the
button is signalised by the frame displayed
around the symbol of the chosen function in the lower part of the display:
cond (conductivity), pH, mV, O
2
or time. Simultaneously with the result a
measured temperature value in
o
C is displayed. Symbols of units are
displayed next to the results. In the dissolved oxygen measurement mode
readout of the air pressure is possible.
Pic. 1.
Next to the temperature value the symbol for automatic temperature
compensation or the
symbol for manual compensation is displayed
.
The
CAL symbol on the left informs that the meter is in the calibration mode.
The number of the chosen electrode is displayed on the left (E1, E2, E3). It
informs which of the characteristics would be taken into consideration during
all calculations. Blinking symbol of the electrode number informs that its
characteristic was deleted, the calibration validity has expired (point 6.6) or
that the last calibration indicated that the pH electrode had lost its efficiency.
The number of detected calibration point is displayed during calibration
process between the upper and the lower row of digits (P1, P2, P3, P4, P5).
In the MODE mode all parameters set by the user and the value of the air
pressure measurement (for the O
2
measuring mode) are displayed. The
rechargeable battery condition is signalised by the symbol.