5 ph value, 1 measuring, 1 measuring the ph value – YSI MultiLab 4010P-1 User Manual
Page 28: Ph value, Measuring, Measuring the ph value, 5ph value
pH value
MultiLab 4010-1
28
ba76141e03
03/2014
5
pH value
5.1
Measuring
5.1.1 Measuring the pH value
NOTE
When connecting a grounded PC/printer, measurements cannot be
performed in grounded media as the values would be incorrect. The USB
interface is not galvanically isolated.
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
, page 69) in the System menu.
1.
Connect the IDS pH sensor to the meter.
The pH measuring window is displayed.
2.
If necessary, select the measured parameter with <M>.
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.
25.0
7.007
pH
°C
0
14
01.02.2014
08:00
Info
USB output
1.
Freeze the measured value with <AR>.
The [HOLD] status indicator is displayed.
The HOLD function is active.