Description
The Siemens QBE64-DP4 is a differential pressure sensor for HVAC installations and compatible industrial pressure-monitoring systems. It measures the pressure difference between two pressure points and converts that measurement into a proportional electrical signal for monitoring or control.
Its ceramic sensing element supports reliable measurement, while the integrated electronics linearize and compensate the signal. The 0–10 V DC output allows connection to compatible controllers and building automation systems.
Key Product Features
– Differential pressure measurement: Monitors pressure differences across two measurement points.
– Measuring range: 0–4 bar (0–400 kPa).
– Analog output: Linear 0–10 V DC signal.
– Ceramic sensing element: Designed for stable pressure measurement.
– Flexible power supply: Supports 24 V AC or 18–33 V DC.
– Pressure connections: G1/8-inch threaded connections, with fittings for 6 mm copper tubing.
– IP65 housing protection: Helps protect the enclosure against dust and water jets when installed as specified.
– Mounting bracket: Included according to Siemens product documentation.
Technical Specifications
|
Specification |
Details |
|---|---|
|
Brand |
Siemens |
|
Model |
QBE64-DP4 |
|
Product Type |
Differential pressure sensor |
|
Measuring Range |
0–4 bar (0–400 kPa) |
|
Output Signal |
0–10 V DC |
|
Supply Voltage |
24 V AC ±15% or 18–33 V DC |
|
Sensing Element |
Ceramic |
|
Measurement Accuracy |
Linearity, hysteresis and repeatability combined: less than ±0.5% of full scale |
|
One-Sided Overload |
8 bar at P1 or P2 |
|
System Pressure |
25 bar with pressure applied to both sides simultaneously |
|
Housing Protection |
IP65 |
|
Pressure Connection |
G1/8-inch male thread |
|
Medium Temperature |
−15°C to +85°C |
|
Suitable Media |
Neutral and mildly corrosive liquids and gases |
|
Electrical Connection |
3-core, 1.5 m cable |
Applications
The Siemens QBE64-DP4 can be used in compatible systems for:
– HVAC pressure monitoring
– Liquid and gas pressure-difference measurement
– Monitoring levels or flow rates through suitable pressure-measurement arrangements
– Building automation and control systems
– Industrial process monitoring
– Pressure feedback to controllers accepting a 0–10 V DC signal
Installation and Compatibility
Before installation, verify the pressure range required by the system, the compatibility of the measured medium, and the controller’s input requirements. Connect the pressure ports according to the manufacturer’s instructions and ensure the pressure connections are sealed correctly.
The QBE64-DP4 is designed for devices capable of processing its 0–10 V DC output. It should not be substituted directly for a pressure sensor using a different output signal or measuring range.
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