Xylem WTW pH/Cond 3320, Руководство по эксплуатации

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pH/Cond 3320 pH value
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5.2.4 Manual calibration (ConCal)
Make sure that in the sensor menu, Buffer menu, the ConCal buffer set is
selected (see section 8.1.1 S
ETTINGS FOR P
H
MEASUREMENTS
, page 44).
Use any one to five buffer solutions in ascending or descending order.
21. Wait for the measurement with stability control to be completed or termi-
nate the stability control and take over the calibration value with
<ENTER> .
The calibration display for the next buffer appears (voltage display).
22. If necessary, use <M> to finish calibration or
Continue calibrating using the next buffer with <ENTER> .
Calibration is automatically completed after the last buffer of a buf-
fer set has been measured. Then the calibration record is dis-
played.
The calibration line is determined by linear regression.
If single-point calibration was set in the menu, the calibration proce-
dure is automatically finished with the measurement of buffer solu-
tion 1 and the calibration record is displayed.
1. Connect the pH electrode to the meter.
The pH measuring window is displayed.
2. When measuring without temperature sensor:
– Temper the buffer solution, or measure the current temperature.
– Enter the temperature value in the menu.
3. In the measured value display, select the measured parameter pH or mV
with
<M> .
4. Start the calibration with <CAL> .
The calibration display appears (voltage display).
pH
180.0
24.8 °C
AutoCal TEC
4.010
15.02.2014
14:15
AR
Buffer
mV