The various possible configuration levels for a pressure measurement solution aren’t defined conceptually in virtually any standard. At WIKA we’ve chosen the next terminology:
Pressure sensor (Pressure transmitter)
Pressure sensor (pressure transmitter)
A pressure sensor (also pressure transmitter) delivers a standardised, processed signal inside a housing with commonly available pressure connection and electrical connection. Typically, it is usually coded and ordered as a catalogue product and therefore provides the customer with a plug-and-play solution. Nevertheless, customised versions are possible when supported with a corresponding ?business case?.
Pressure sensor module
Pressure sensor module
A pressure sensor module is made for OEM applications. It delivers a standardised and calibrated signal, but can be customised pertaining to connections and size. EMC protective measures should be arranged in the client application.
Sensor elements and their assemblies
Sensor elements and their assemblies
Sensor elements and their assemblies deliver an uncalibrated signal in mV/V and can be made to suit the client through corresponding modifications of the pressure connection or addition of an incident etc. Here the client is responsible for the calibration and therefore for the accuracy achieved.
A tabular comparison summarises the options for pressure sensors:
Pressure sensor/
pressure transmitter
Pressure sensor module
Pressure sensor element incl. assembly
Processed, calibrated output signal
yes
yes
no
EMC protection
yes
no
no
Integration effort
low
medium
high
Sensible for annual quantities
from 1
> 250 ? 500
> 1000
As is shown in the table, specific sensor modules and assemblies with sensor elements require a rigorous coordination between your customer and the sensor supplier. And discover Tease , a joint ?value innovation workshop? can provide a good solution.
Note
Further information on engineered solutions in neuro-scientific pressure measurement are available on the WIKA website.
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See also our articles
?Value innovation workshop? ? What is it?
Integration of a pressure sensor element ? error compensation of signal for zero point and span
Sensor integration ? notes on mechanics and EMC
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