The various possible configuration levels for a pressure measurement solution aren’t defined conceptually in virtually any standard. At WIKA we have chosen the following 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 thus supplies the customer with a plug-and-play solution. Nevertheless, customised versions are possible when backed up with a corresponding ?business case?.
Pressure sensor module
Pressure sensor module
A pressure sensor module is designed for OEM applications. It delivers a standardised and calibrated signal, but can be customised with regard to connections and size. EMC protective measures must 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 may be made to suit the customer through corresponding modifications of the pressure connection or addition of an incident etc. Here the customer is responsible for the calibration and therefore for the accuracy achieved.
A tabular comparison summarises the possibilities 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. In order to find the best possible solution, a joint ? ไดอะแฟรม ซีล ? can offer a good solution.
Note
Further information on engineered solutions in the field of pressure measurement are available on the WIKA website.
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