Xylem HandyLab 200 - Manual (Page 27)

HandyLab 200 Operation
27 ba77063e01 03/2014
Criteria for a stable
measured value
The Stability control function checks whether the measured values are
stable within the monitored time interval.
The minimum duration until a measured value is assessed as stable is
the monitored time interval. The actual duration is mostly longer.
4.4.3 Temperature compensation
The calculation of the temperature compensation is based on the pre-
set reference temperature, 20 °C or 25 °C. It appears on the display as
Tr20 or Tr25.
You can select one of the following temperature compensation meth-
ods:
2 Using , activate the Stability control function manu-
ally.
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
measured value is recognized.
Note
You can prematurely terminate the Stability control function manually
with at any time. If the Stability control function is prema-
turely terminated, the current measurement data are output to the
interface without the AutoRead info.
3 Using , start a further measurement with stability
control.
or
Release the frozen measured value again with or .
The [AR] status display disappears. The display switches back
to the previous indication.
Measured
parameter Time interval Stability in the time interval
Conductivity
ϰ
10 seconds
Δ
: better than 1.0% of mea-
sured value
Temperature 15 seconds
Δ
: better than 0.5 °C