wtw Multi 3620 IDS - Page 33

pH value Multi 3620 IDS
33 ba77169e01 04/2016
Continuing with two-
point calibration
Continuing with
three- to five-point
calibration
8 If necessary, finish the calibration procedure as a single-point calibra-
tion with <M>.
The calibration record is displayed.
For single-point calibration, the instrument uses the Nernst slope
(-59.2 mV/pH at 25 °C) and determines the zero point of the IDS-
pH sensor.
9 Thoroughly rinse the IDS sensor with deionized water.
10 Immerse the IDS-pH sensor in buffer solution 2.
11 When measuring without temperature sensor:
Measure the temperature of the buffer manually and enter it with
<><>.
12 Start the measurement with <ENTER>.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parameter
flashes.
13 Wait for the measurement with stability control to be completed or ter-
minate the stability control and take over the calibration value with
<ENTER>.
The calibration display for the next buffer appears (voltage display).
14 If necessary, finish the calibration procedure as a two-point calibration
with <M>.
The calibration record is displayed.
30.09.2015 08:00
15 Thoroughly rinse the IDS-pH sensor with deionized water.
16 Immerse the IDS-pH sensor in the next buffer solution.