Ph/Mv/Temperature Measurement; Sample Point - Consort R3610 Mode D'emploi

Sample point

Before the exact location of the electrodes is finalised, it is worthwhile to carry
out a measuring profile of the process stream to ensure that the required
homogeneity is being achieved. As a general rule the electrodes should protrude
into the process stream by one-third of the pipe width and be positioned so as to
avoid gas pockets or sediments.
Generally the measuring electrodes are inserted into the flow with the sample
pick-up facing downstream in order to reduce the risk of blockage by suspended
material.
All sensors are usually positioned vertically at a suitable point downstream of the
dosing point, where the measurements are stable and reliable. The response of
the dosing system will be affected by the time required to disperse the reagents
and their arrival at the measuring point.
pH measurement
1. Select the desired mode (pH) by pressing é ê . The display will immediately
show the measured value according to the previous calibration. Should you
want to recalibrate, press CAL.
2. The instrument permits to choose between the buffers in memory (1.68, 2.00,
4.00, 4.01, 6.87, 7.00, 9.18, 9.21, 10.01, 12.00, 12.45 + up to 5 user tables).
Select the proper values and press OK. The unused buffers should be switched
off.
3. Rinse the electrodes with distilled water and immerse them in the first buffer
solution. Select [CALIBRATE], press OK and follow the instructions on the
screen until the calibration is finished.
4. After rinsing the electrodes with distilled water, immerse them in the samples
and read the display.
5. Rinse the electrodes always with distilled water after use and store them in a
3...4 M KCl solution.
• Hold SET pressed and press ê to change the resolution from 0.1 to 0.001 pH.
mV measurement
1. Select the desired mode (mV) by pressing é ê . The display will immediately
show the measured value according to the previous calibration. Should you
want to recalibrate, press CAL.
2. Immerse the electrodes in a standard solution of known potential. Select
[CALIBRATE] and press OK. Adjust to the proper value and press OK.
• Select [RESET] and press OK to reset the calibration.
• Hold SET pressed and press ê to change the resolution from 1 to 0.1 mV.
Temperature measurement
1. Select the desired mode (°C) by pressing é ê . Should you want to
recalibrate, press CAL.
2. Immerse the Pt1000 in a solution of known temperature. Select [CALIBRATE]
and press OK. Adjust to the proper value and press OK.
• Select [RESET] and press OK to reset the calibration.
• Without Pt1000, press CAL, adjust the manual temperature compensation and
proceed by pressing OK.

pH/mV/temperature measurement

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