EUTECH INSTRUMENTS WP PCD 650 Manual de instrucciones descargar pdf (Pagina 52)

Instruction Manual PCD 650

3.2 Temperature Calibration

The built-in temperature sensor of conductivity and DO probe included with the

meter are factory calibrated. The built-in ATC probe of the conductivity cells

can be used for temperature readout and compensation of the pH values. DO

in mg/L is dependent on temperature, so it is first necessary to calibrate or verify

the temperature reading. Calibrate the probes only if you suspect temperature

errors may have occurred over a long period of time or if you have a replacement

probe. This procedure offers offset adjustment of probe to ensure more accurate

temperature measurement.

Use a thermometer which is known to be accurate to measure the temperature of

your sample.

3.2.1 Temperature Calibration for ATC mode

Make sure you have selected ‘ATC’ and required unit of measurement (ºC or ºF) in

Temperature settings. Refer ‘Temperature Setup’ section in page 98 for more

details.

1. Switch on the meter. Make sure the meter is in measurement mode.

2. Press CAL (F2) to go to calibration mode.

3. The meter shows ‘Calibration-Rinse Electrode’ screen [Figure 48-(a)] for

few seconds and then shows the cell constant adjustment screen.

4. Press NEXT (F3) key.

5. Press TEMP (F1) to go to temperature calibration. The temperature

calibration screen appears (Figure 40).

Figure 40: Temperature calibration screen

Note: If the meter is password protected, you will be prompted to enter a

password. Refer ‘Accessing Calibration mode when password protection

enabled’ in pa

e 42.

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EUTECH INSTRUMENTS WP PCD 650 Manual de instrucciones Pagina 52