Electronic pressure sensor
PM11
15
7.3 Teach offset with button
An external teach button (E30425) allows for a zero-point calibration (calibration offset). The current
measured value is taken as internal zero point if this measured value lies within a range of +/- 3% of
the measuring span.
u
Connection:
Ò
Data sheet E30425
If a teach button is connected, no IO-Link communication is possible.
u
Integrate the teach button between the installed sensor and the supply cable.
u
Maintain the plant pressure constantly at zero (configurable range = ± 3% of the measuring span).
u
Press the button for > 2 ... < 10 s.
w
When voltage is supplied, the LED in the button flashes at 2 Hz and configures the zero point
(calibration offset).
w
In case of a fault, the LED flashes at 8 Hz.
7.4 Scale analogue value
u
Select [ASP2] and set the pressure value at which 4 mA is provided.
u
Select [AEP2] and set the pressure value at which 20 mA is provided.
Minimum distance between ASP2 and AEP2 = 20 % of the measuring span (scaling factor 5).
[ASP2]
[AEP2]
7.5 Setting of the standard unit of measurement
u
Select [uni.P] and set the unit of measurement:
[bAr] / [mbar] / [MPA] / [kPA] / [PSI] / [mWS] / [inH2O]
[uni]
The selectable units of measurement depend on the respective device.
7.6 User settings (optional)
7.6.1 Zero-point calibration
u
Select [coF] and set the zero point between -3%...+3%. The internal measured value “0” is shifted by
this value.
[coF]
The command "Teach COF" is used to readjust to zero.
The command "Reset COF" resets [coF].
7.6.2 Set damping for the analogue output
u
Select [dAA] and set the damping constant (rise time 10...90 %) in seconds:
Setting range: 0.000...4.000 s
[dAA]
Damping [dAA] only influences the analogue output / analogue signal path.
