Multi 3620 IDS Turbidity measurement (VisoTurb
®
900-P)
ba77169e01 04/2016 64
Selecting the
displayed
measured parameter
You can switch between the following displays with <M>:
Turbidity [FNU]
Turbidity [NTU]
Freezes the
measured value
(HOLD function)
With the HOLD function, you can freeze the current measured value. The dis-
played measured value stops changing until you switch the HOLD function off.
Stability control
(AutoRead )
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 display of the measured parameter flashes until
a stable measured value is available.
You can start the Stability control function manually at any time, irrespective of
the setting for automatic Stability control (see section 11.6.3) in the System
menu.
2 Immerse the sensor in the test sample at an angle and then position it
in the measuring container.
1 Freeze the measured value with <AR>.
The [HOLD] status indicator is displayed.
If the HOLD function is active, you can, e.g. start a manual mea-
surement with stability control.
2 Release the frozen measured value again with <AR>.
The HOLD function is switched off.
The [HOLD] status display disappears.
1 Freeze the measured value with <AR>.
The [HOLD] status indicator is displayed.
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