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Dissolved oxygen Multi 3620 IDS

49 ba77169e01 04/2016

Freezing 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 a measurement with Stability control manually at any time, irre-

spective of the setting for automatic Stability control (see section 11.6.3) in the

System menu.

You can switch the salinity correction on or off and enter the salinity

in the menu for calibration and measurement settings (see section

11.4.1).

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.

2 Using <ENTER>, activate the Stability control function manually.

The [AR] status indicator appears while the measured value is

assessed as not stable. A progress bar is displayed and the display of

the measured parameter flashes.

The [HOLD][AR] status indicator appears as soon as a stable mea-

sured value is recognized. The progress bar disappears and the dis-

play of the measured parameter stops flashing.

The current measurement data is output to the interface. Measurement

data meeting the stability control criterion is marked by AR.

You can prematurely terminate the Stability control function manu-

ally with <ENTER> at any time. If the Stability control function is

prematurely terminated, the current measurement data are not out-

put to the interface.

wtw Multi 3620 IDS User Manual

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