H61.0.12.6C-03
User’s Manual MH3111
page 5 of 8
2 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
5
(key 2) or
6
(key 5).
Quit
(key 6) finishes the configuration and returns to standard measuring operation.
2.1 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.
2.2 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
5
(key 2) or
6
(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).
2.3 P.oFF: Auto Power Off Time
The device will be automatically switched off if no key is pressed/no interface communication
takes place for the time of the power off time.
The power off time can be set to values between 1 and 120 min. It can be completely
deactivated by setting the parameter to ‚P.oFF = oFF“.
2.4 Adr: Base Address of Interface
Up to 10 devices of the MH3xxx- handheld-family can be connected to a serial interface at once
(depending on interface converter, e.g. GRS3105: 5 devices). To get access to each device the
base addresses of the devices have to be different. For example choose 01 for the first, 11 for
the second device and so on.
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
MPa
Pa
bar
mbar
kPa
Tara
AL Logg
SL
PSI
MPa
Pa
bar
mbar
kPa
Tara
AL Logg
SL
PSI
mbar
2.5 OFFS: Adjusting Sensor Zero Displacement
A zero displacement can be carried out for the measured value:
value displayed = value measured - offset
Standard setting: 'off' = 0.0°, i.e. no zero displacement will be carried out. Together with the scale correction
(see below) this factor is mainly used to compensate for sensor deviations. Input is in the display unit.
2.6 SCAL: Adjusting Sensor Scale
The scale of the measuring can be influenced by this setting (factor is in %):
displayed value = measured value * (1+Scal/100)
Standard setting: 'off' =0.000, i.e. value is not corrected. Together with the zero displacement (see above)
this factor is mainly used to compensate for sensor deviations.
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+49 5605 803-0 •
+49 5605 803-54 •
[email protected] • www.SIKA.net
