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EU declaration conformity
Pressure transmitter | display | 125 to 125 Pa | PoM
Product description
This device measures differential pressure with a range of -125 to +125 Pa. It can also measure air volume flow and, when used with an optional Pitot tube connection set, air velocity.
For simplified installation, it uses 24V Power over Modbus (PoM), which provides both power and Modbus RTU communication through a single RJ45 socket.
A 7-segment LED display and four additional LED indicators provide a clear visual readout of measured values and device status.
All settings, including the differential pressure range, can be fully configured via Modbus RTU.
This device is commonly used for monitoring air volume flow and regulating the supply of fresh air.
Additional specifications and description
What Does the Sensor Measure and What Can It Calculate?
How Does the Sensor Provide Visual Status?
The 7-segment LED display visualises the measured pressure, volume flow or air velocity. On top of that, the green, yellow and red LED offer a visual indication of the measured value. The green LED indicates that the pressure level is within range. When the pressure level enters the alert range, the yellow LED lights up. Red means: differential pressure out of range. The LEDs can also indicate the status of the air volume flow or air velocity. The second green LED indicates the sensor status. It is activated when power supply and Modbus RTU communication are enabled.
What Are the Power Supply and Wiring Requirements?
One RJ45 connector is all it takes to connect this sensor! Modbus RTU communication and 24 VDC power supply are connected via one UTP cable - we call it Power over Modbus or PoM. All measured values are available via Modbus RTU communication. To facilitate wiring, we recommend to use a Sentera 24 VDC power supply with RJ45 connector. These power supplies also offer protection against short circuit, overload and overvoltage. A 24 VDC supply voltage increases the safety and reliability of your installation.
One RJ45 connector is all it takes to connect this sensor! Modbus RTU communication and 24 VDC power supply are connected via one UTP cable - we call it Power over Modbus or PoM. All measured values are available via Modbus RTU communication. To facilitate wiring, we recommend to use a Sentera 24 VDC power supply with RJ45 connector. These power supplies also offer protection against short circuit, overload and overvoltage. A 24 VDC supply voltage increases the safety and reliability of your installation.
What Are the Sensor's Quality and Durability Features?
The enclosure is made of high-quality r-ABS VO (UL94) plastic. This material is heat resistant, very tough and offers good protection against impacts. The pressure connection nozzles are made from Aluminium. The sensor enclosure offers an IP65 protection against ingress of dirt and water. This sensor can be wall-mounted.
The enclosure is made of high-quality r-ABS VO (UL94) plastic. This material is heat resistant, very tough and offers good protection against impacts. The pressure connection nozzles are made from Aluminium. The sensor enclosure offers an IP65 protection against ingress of dirt and water. This sensor can be wall-mounted.
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