HND-P210
HND-P210 K08/0422
page 11
8.5 Measuring of Water Level – Display Unit [m]
(only for devices with ‚m‘ printed below the display)
When using a suitable waterproof pressure sensor the unit [m] for meters of water
can be set in the menu “Unit“. 10 m of water are roughly 1 bar over pressure.
Measurings can be made e.g. like described below:
With abs. pressure sensor (SL oFF!): Press ‚Tara‘ when sensor is at ambient
air and then bring sensor to the depth to be measured. The display shows now
the depth in [m].
With rel pressure sensor: bring tube connection for lower press. in contact to
ambient air by means of a tube (no water contact!) and bring the sensor with
its open press. connection for higher pressure to water depth to be measured
(display and is compensated for pressure changes in ambient air).
8.6 Operation Of Logger
The device supports two different logger functions:
„Func-Stor“:
each time when „store“ (key 6) is pressed a measurement will
be recorded.
„Func-CYCL“:
measurements will automatically be recorded each interval,
which was set in the logger menu ‚CYCL‘ until the logger will be
stopped or the logger memory is full. The recording is started by
pressing „Store“ 2 seconds.
The logger records 3 measurement results each time:
current or mean value (depending on logger setting, see below), min peak and
max peak of sensor
Min and max peak
are the minimum resp. the maximum of the measured values
since the last recording. Using them allows f.e. analysis of fluctuating pressures.
For the evaluation of the data the software HND-Z034 has to be used. The
software also allows easy configuration and starting of the logger. When the
logger is activated (Func Stor or Func CYCL) the hold function is no more
available, the key 6 is solely used for the operation of the logger functions.
8.6.1
„Func-Stor“: Storing Single Measurements
Each time when „store“ (key 6) is pressed a measurement and its time stamp will
be recorded.
The recorded data can be viewed either in the display (when calling the
configuration an additional menu „REAd LoGG“ is displayed, see below) or by
means of the interface and a PC with HND-Z034-software.
Please note: For the Func-Stor-logging function it is not allowed to change the
pressure sensor after values are stored, otherwise invalid data could be read out.
For the read out of the logger the sensor has to be kept connected!
Max. number of measurings: 99
A measuring contains:
- current measuring value at the time of recording
- min peak, max peak since the last recording
- max peak since the last recording
