Kobold HND-P105, Operating Instructions Manual

Page: 7 / 15

HND-P105
HND-P105 K05/0117 page 7
Zero-Point Adjustment: If there is no pressure or zero-pressure (absolute)
applied to the pressure ports the device will display 0. If there is a
permanent deviation (and device is operated under steady
conditions), a permanent zero point adjustment can be carried
out. To carry out the adjustment press key 3 for approx. 5
seconds. (Auto Null will be displayed shortly). The adjustment is
done via the OFFSET-value of the sensor (referring configuration
menu). Please note: A zero-point adjustment can only be carried
out if the difference between the value on display is less than 500
digits!
To recall the manufacturer`s calibration press button 3 for approx.
15 seconds.
Note: If a zero-point adjustment was carried out, this will be
signalled by the short displaying of “Corr” when switching on the
device.
7.5 Configuration
To change device settings, press Menu (key 4) for 2 seconds. This will call the
configuration menu.
Pressing key
Menu jumps between the parameters.
The parameters can be changed with

(key 2) or

(key 5).
Quit (key 6) finishes the configuration and returns to standard measuring
operation.
7.5.1 Unit: Choice Of The Display Unit
Choose the desired display unit, the referring unit is displayed by means of
a functional arrow in the display. The selection is permanently stored in the
sensor, therefore after reconnecting the sensor the unit will instantly
reappear. The choice depends on the used sensor.
7.5.2 Sea Level Correction For Absolute Pressure Sensors
The device displays the absolute pressure measured at the sensor. This is not
necessarily the same like the values given by weather stations! The weather
stations‘ values are pressure at sea level. Usually the sensor is placed above sea
level and therefore, if the value at sea level (zero) is to be measured, the
pressure loss resulting from the actual level above zero has to be considered!

To correct activate the „Sea-Level-Function“:
Select „on“ in the menu „SL“ with

(key 2) or

(key 5).

Jump to the next parameter „Alti“ by pressing Menu (key 4).
Then enter the altitude above sea level of the sensor‘s location in meters
and leave the configuration by pressing
Quit (key 6)
If the sea level correction is active this will be shown by the functional arrow „SL“
in the display, the device now displays the absolute pressure at sea level (zero).
MPa Pa bar mbar kPa
Tara AL Logg SL PSI
mbar
MPa Pa bar mbar kPa
Tara AL Logg SL PSI
MPa Pa bar mbar kPa
Tara AL Logg SL PSI