Manual Temperature Compensation; Analog Output (El20); Using The Memory (El2); Storing A Reading - Mettler Toledo EL20 Instrucciones De Manejo

Operating the pH meter
4.4.1

Manual temperature compensation

If the meter does not detect a temperature probe, it automatically switches to the manual temperature
compensation mode and MTC appears.
To set the MTC temperature and the temperature unit, press Setup (EL20) or press and hold Mode/Setup
(EL2) until the setup icon appears on the display and the MTC temperature blinks. Use  or  to
increase or decrease the value to the temperature of your sample. Press Read to confirm the setting.
The meter proceeds automatically to the temperature unit setting. Press Exit to leave the setup without
changing the temperature unit or use  or  to select between °C (Celsius) or °F (Fahrenheit). Press
Read to confirm the setting. The meter proceeds automatically to the calibration setting; press Exit to
leave to setup. The default setting is 25 °C.
4.5

Analog output (EL20)

The analog output supplies a voltage proportional to the displayed measured value (pH, mV). The po-
larity of the output corresponds to the polarity at the measurement electrode. The voltage at the analog
output is not temperature-compensated.
4.6

Using the memory (EL2)

4.6.1

Storing a reading

The EL2 pH meter can store up to 30 endpointed results. Press STO when the measurement has end-
pointed. M01 indicates that one result has been stored.
If you press STO when M30 is displayed, FUL indicates the memory is full. To store further data you
will have to clear the memory (see below).
4.6.2

Recalling from memory

Press and hold RCL to recall the stored values from memory when the current measurement has
endpointed.
Press  or  to scroll through the stored results. R01 to R30 indicates which result is being displayed.
Press Read to exit.
4.6.3

Clearing the memory

Continue pressing  or  to scroll through the stored results until MRCL appears. Then press Read,
CLr blinks. Press Read again to confirm the deletion or press Exit to return to the measurement mode
without deleting the data.
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METTLER TOLEDO Education Line pH meter
12.03.2007 15:08:48