QBE2103-P10

What does this pressure sensor measure?

This model is designed to measure relative pressure in HVAC, hydraulic and pneumatic applications. It is scaled for 0 to 10 bar, which is also equivalent to 0 to 1.0 MPa.

What output signal does it provide?

It provides a linear 4 to 20 mA output signal. The Siemens QBE2103-P10 is a 2-wire transmitter, making it suitable for control and monitoring systems that accept a standard current loop signal.

What supply voltage is required?

The sensor operates from a DC supply of 7 to 33 V. Current consumption is specified as less than 23 mA.

Which media can it be used with?

It is intended for neutral and mildly corrosive liquids and gases, and it is also suitable for oil-based media. This makes it a practical choice for many building services and industrial pressure-measurement duties.

Is it suitable for water and air pressure measurement?

Yes. It is commonly used for liquid and gas pressure measurement where the medium is compatible with the wetted materials. Typical examples include water circuits, air lines and similar HVAC or process installations.

How accurate is it?

The stated measuring accuracy is typically ±0.3% of full scale, with a maximum of ±0.5% of full scale when factors such as linearity, hysteresis and repeatability are taken into account. Resolution is 0.1% of full scale.

How quickly does it respond to pressure changes?

The response time is less than 2 ms, with a typical response of around 1 ms. This helps it react quickly to changing pressure conditions.

What electrical connection does it use?

It uses a DIN EN 175301-803-A plug connection. The terminal arrangement for this 2-wire version is terminal 1 for supply positive and terminal 2 for the 4 to 20 mA output loop.

What process connection does it have?

The sensor has a G 1/2 external thread. For this 10 bar version, there is no internal M5 thread, which is an important point to check if your installation method depends on that feature.

Can it be used for remote mounting?

Remote mounting should be checked carefully on this version. Siemens notes that certain accessories intended for models with an internal M5 thread are not suitable for the 10 bar variant, because this version does not include that internal thread.

What materials are used in the wetted parts?

The pressure connection is stainless steel 1.4404 / AISI 316L. For the 10 bar version, the measuring element is stainless steel, and the seal material is FPM.

What is the environmental protection rating?

It is rated IP65 according to EN 60529, which helps protect the unit against dust ingress and water jets in typical installed conditions.

What temperatures can it operate in?

The permissible medium temperature is -15 to +125 °C. The ambient operating temperature range is -30 to +85 °C, and storage temperature is -50 to +100 °C.

Can it be installed in any position?

Yes, the sensor can be mounted in any position. For best results, installation guidance should still be followed, especially for liquid or gas applications where trapped air, condensate or contamination at the measuring point could affect performance.

How resistant is it to overload pressure?

For pressure ranges from 6 to 60 bar, Siemens specifies a maximum allowable or burst pressure of 2.5 times the full-scale value. For this 10 bar version, that means up to 25 bar.

Does this model require routine maintenance?

The unit is specified as maintenance-free in normal use, which makes it a convenient option for long-term pressure monitoring applications.