.webp "Pressure sensor")
.webp "Pressure meter")
.webp "Pressure transmitter")
.webp "Pressure detector")
.webp "HVAC pressure sensor")
.webp "HVAC pressure meter")
EU declaration conformity
Differential pressure transmitter | -125 to +125 Pa | 24 VDC
Product description
Primary Measurement: It measures differential pressure within a range of -125 to +125 Pa.
Additional Measurements: The sensor can also be used to measure air volume flow or air velocity.
Power Supply: The device operates on a 24 VDC supply voltage.
Multiple Outputs: The measured values are accessible through a single analogue output and Modbus RTU communication.
Adjustable Output Type: The analogue output is selectable and can be set to 0-10 VDC, 0-20 mA, or 0-100% PWM.
Visual Status: Four LED indicators provide a visual display of the sensor status and measured values.
Full Configuration: The differential pressure range and all other settings are adjustable via Modbus RTU.
Additional specifications and description
What Does the Sensor Measure and What Calculations Does It Perform?
This sensor measures differential pressure [Pa]. Based on this measurement, air volume flow [m³/hr] or air velocity [m/s] can be calculated. To calculate air volume flow based on the K-factor of the fan, use the connection set type PSET-PVC-200 or PSET-QF-200. This optional connection set can also be used to measure differential pressure. To calculate air volume flow based on the duct cross section [cm²] or air velocity [m/s], use the optional connection set type PSET-PTS-200 or PSET-PTL-200.
This sensor measures differential pressure [Pa]. Based on this measurement, air volume flow [m³/hr] or air velocity [m/s] can be calculated. To calculate air volume flow based on the K-factor of the fan, use the connection set type PSET-PVC-200 or PSET-QF-200. This optional connection set can also be used to measure differential pressure. To calculate air volume flow based on the duct cross section [cm²] or air velocity [m/s], use the optional connection set type PSET-PTS-200 or PSET-PTL-200.
How Does the Sensor Visually Indicate Status and Values?
This pressure transmitter offers a clear, visual indication of the differential pressure level via the green, yellow and red LED. 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.
This pressure transmitter offers a clear, visual indication of the differential pressure level via the green, yellow and red LED. 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 Sensor's Output Features and Settings?
This sensor has one analogue output. It transmits the measured differential pressure, air volume flow or air velocity proportionally. The default range of this sensor is -125 to +125 Pa. By default, the output transmits 0 V at -125 Pa and 10 V at +125 Pa. This range, the output type and all other settings can be adjusted via Modbus RTU. The output type can be adjusted via Modbus RTU: 0-10 VDC / 0-20 mA / 0-100 % PWM.
This sensor has one analogue output. It transmits the measured differential pressure, air volume flow or air velocity proportionally. The default range of this sensor is -125 to +125 Pa. By default, the output transmits 0 V at -125 Pa and 10 V at +125 Pa. This range, the output type and all other settings can be adjusted via Modbus RTU. The output type can be adjusted via Modbus RTU: 0-10 VDC / 0-20 mA / 0-100 % PWM.
What Are the Sensor's Power Supply and Wiring Requirements?
The supply voltage, the analogue output and Modbus RTU communication can be connected via the cage clamp terminal block. They eliminate the need for routine maintenance and guarantee a reliable contact for solid or stranded wires. The supply voltage is 24 VDC. The ground terminals of the power supply (V-) and output (GND) are internally not connected. This means that a 4-wire cable is required to connect this sensor. Most 24 VDC power supplies offer protection against short circuit, overload and overvoltage. A 24 VDC supply voltage increases the safety and reliability of your installation
The supply voltage, the analogue output and Modbus RTU communication can be connected via the cage clamp terminal block. They eliminate the need for routine maintenance and guarantee a reliable contact for solid or stranded wires. The supply voltage is 24 VDC. The ground terminals of the power supply (V-) and output (GND) are internally not connected. This means that a 4-wire cable is required to connect this sensor. Most 24 VDC power supplies 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.
What Are the Typical Applications for the Sensor?
A typical application for differential pressure sensors with this range is to monitor underpressure or overpressure in staircases or cleanrooms. For instance, by creating a constant overpressure in the staircase, it remains smoke-free in case of fire.
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