wtw Oxi 3315, Руководство по эксплуатации

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Oxi 3315 Dissolved oxygen
ba75944e02 03/2012
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When the salinity correction is switched on, the [Sal] indicator is displayed in
the measuring screen.
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.
Irrespective of the setting for automatic
Stability control
(see section 6.2.3
A
UTOMATIC
S
TABILITY CONTROL
, page 35) in the
System
menu, you can start a
measurement with
Stability control
manually at any time.
You can switch the salinity correction on or off and enter the salinity
in the menu for calibration and measurement settings (see section
6.1.1 S
ETTINGS FOR
D.O.
SENSORS
(
MENU OR MEASUREMENT AND
CALIBRATION SETTINGS
), page 33).
1. Freeze the measured value with
<AR>
.
The [HOLD] status indicator is displayed.
The HOLD function is active.
You can terminate the
Stability control
function and the HOLD func-
tion with
<AR>
or
<M>
at any time.
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 mea-
sured parameter flashes.
The [HOLD][AR] status indicator appears as soon as a stable measured
value is recognized. The progress bar disappears and the display 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 output
to the interface without the AutoRead info.
3. Using
<ENTER>
, start a further measurement with stability control.
or
Release the frozen measured value again with
<AR>
or
<M>
.
The [AR] status display disappears. The display switches back to the
previous indication.