EUTECH INSTRUMENTS WP PCD 650 Manual de instrucciones descargar pdf (Pagina 50)

Instruction Manual PCD 650

Ensure that you use new conductivity standard solutions or sachets during

calibration. Do not reuse standard solutions as it may be contaminated and

affect the calibration and accuracy of measurements. Use fresh calibration

solution each time you calibrate your meter. Keep solutions in a dry and cool

environment if possible.

For DO(%) and DO (mg/L) Calibration

Before starting calibration, make sure you are in the correct measurement

mode and in the correct calibration sequence. The temperature and the %

Saturation calibration must be done first before attempting to do the

mg/L (ppm) Concentration calibration.

Rinse the probe well in the de-ionized (DI) water or rinse solution and wipe

the probe carefully taking care of the membrane.

Calibrate the meter in all the modes to ensure the highest accuracy

throughout the DO measurement range. In % Saturation, the meter is able to

perform either a one point calibration or a 2 point calibration. For one point

calibration, it is recommended that you perform a 100% Saturation calibration

in saturated air. If you opt for 2 point calibration, you can calibrate for 100%

Saturation in saturated air and 0% Saturation using a zero oxygen solution.

All new calibration values will automatically override the existing data. It is

recommended to calibrate the meter periodically and or if it is suspected to

be inaccurate.

Always rinse the probe with either DI water or rinse solution before and after

each calibration/sample measurement. When calibrating in air, make sure

that any water droplets from the probe’s membrane are removed.

3.1.7 Accessing Calibration mode

From measurement mode, press CAL (F2) key. The meter goes to

corresponding calibration mode, based on the selected measurement mode.

If the meter is password protected, you will be prompted to enter password.

(Refer the below section)

3.1.8 Accessing Calibration mode when password protection enabled

Follow the steps below to access the calibration mode, when password

protection is enabled (Refer page 80).

1. Make sure you are in measurement mode. If required, press MODE (F3) to

switch to the measurement mode for which you wish to perform calibration.

2. Press CAL (F2) to go to calibration mode. Login Password screen appears

(Figure 39). The meter expects the 5-digit password specified in system

setup. (Refer ’System Settings – Page 5’ in page 80)

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EUTECH INSTRUMENTS WP PCD 650 Manual de instrucciones Pagina 50