Xylem MultiLab 4010-2 - Manual (Page 27)

MultiLab 4010-2 pH value
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5 pH value
5.1 Measuring
5.1.1 Measuring the pH value
Stability control
(AutoRead)
& HOLD function
The stability control function (AutoRead) continually checks the stability of the
measurement signal. The stability has a considerable impact on the reproduc-
ibility of measured values.
The measured parameter flashes on the display

as soon as the measured value is outside the stability range
 when the automatic Stability control is switched off.
You can start the Stability control manually at any time, irrespective of the set-
ting for automatic Stability control (see section 9.5.3 A
UTOMATIC S TABILITY CON -
TROL , page 72) in the System menu.
The sensor connection and the USB-B (device) interface are gal-
vanically isolated. This facilitates interference-free measurements
also in the following cases:

Measurement in grounded test samples
 Measurement with several sensors connected to one
MultiLab 4010-2 in one test sample
1. Connect the IDS pH sensor to the meter.
The pH measuring window is displayed.
2. If necessary, select the measured parameter with .
3. Adjust the temperature of the solutions and measure the current tem-
perature if the measurement is made without a temperature sensor.
4. If necessary, calibrate or check the IDS pH sensor.
5. Immerse the IDS pH sensor in the test sample.
03.04.2013 08:00 Info
1. Freeze the measured value with .
The [HOLD] status indicator is displayed.
The HOLD function is active.