ProSight Multi-Function Differential Pressure Transmitter
ProSight Multi-Function Differential Pressure Transmitteris a multi-function digital differential pressure transmitter designed to monitor positive, negative, and differential pressure in air and non-corrosive gases. It is primarily used in HVAC, cleanrooms, VAV and fan control, energy management, environmental control, and building automation systems. Key features include a high-precision MEMS sensor, LED digital display, adjustable pressure units and ranges, alarm and relay control, 4–20 mA/0–10 V outputs, and RS485 Modbus RTU communication.
The ProSight Multi-Function Differential Pressure Transmitter is a digital pressure measurement and control device designed to detect and monitor positive pressure, negative pressure, and differential pressure in air and non-corrosive gases.
The ProSight Multi-Function Differential Pressure Transmitter combines several functions in one instrument, including a high-precision MEMS digital pressure sensor, bright LED digital display, analog transmitter output, relay control, alarm functions, and RS485 communication. This makes it more versatile than a conventional mechanical differential pressure gauge and allows it to be integrated into modern building management and industrial automation systems.
The transmitter is available in measurement ranges of ±100 Pa, ±1,000 Pa, and ±10,000 Pa, with an accuracy of ±1.0% F.S. Users can adjust the internal measurement range and switch between different pressure units through the device's three control keys.
The ProSight Multi-Function Differential Pressure Transmitter provides standard 4–20 mA, 0–10 V, and RS485 outputs, while two SPST control outputs can be used for external control or alarm functions. The RS485 interface supports the Modbus RTU protocol, enabling connection to PLCs, building management systems, SCADA platforms, and other automation equipment.
How Does It Work?
- Pressure sensing — The ProSight Multi-Function Differential Pressure Transmitter measures the pressure difference between its two pressure ports using a high-precision MEMS digital pressure sensor.
- Signal processing — The sensor detects the pressure relationship between the positive and negative ports and converts it into a digital measurement.
- Digital indication — The measured value is displayed locally on the 4-digit LED display.
- Range and unit selection — Users can configure the measurement range and select different pressure units using the three front-panel keys.
- Analog transmission — The measured pressure can be transmitted to external control equipment through a 4–20 mA or 0–10 V output.
- Alarm and relay control — Configurable alarm values can trigger the built-in buzzer and optional relay outputs when pressure reaches specified conditions.
- Digital communication — The RS485 interface and Modbus RTU protocol allow pressure data to be transmitted to centralized monitoring and automation systems.
Why Choose the ProSight Multi-Function Differential Pressure Transmitter?
- Multi-function design — Combines measurement, digital display, transmitter output, alarm, and control functions in a single instrument.
- High-precision MEMS sensing — Provides reliable measurement of low differential pressures.
- Measures multiple pressure conditions — Suitable for positive pressure, negative pressure, and differential pressure measurement.
- Adjustable measurement range — Offers ±100 Pa, ±1,000 Pa, and ±10,000 Pa ranges for different applications.
- Selectable pressure units — Makes the device adaptable to different engineering and monitoring requirements.
- Clear digital display — Provides an easy-to-read local indication of measured pressure.
- Built-in alarm capability — Visual and audible alarm functions help alert operators to abnormal pressure conditions.
- Relay control — Two SPST control outputs can be used for alarm or external control applications.
- Industrial communication — RS485 with Modbus RTU supports integration with modern automation systems.
- Rugged housing — Cast-aluminum construction provides good impact and heat resistance.
- No moving parts — The electronic sensing design improves resistance to shock and vibration compared with traditional mechanical gauges.
- IP65 protection — Provides protection suitable for many HVAC, building automation, and industrial environments.
Benefits
- Provides accurate real-time differential pressure monitoring
- Replaces traditional pointer-type mechanical pressure gauges in suitable applications
- Enables local digital pressure display
- Supports remote monitoring through analog or RS485 outputs
- Simplifies integration into HVAC and building management systems
- Helps identify blocked filters and abnormal airflow conditions
- Supports pressure-based fan and VAV control
- Provides audible and visual alarms for abnormal pressure conditions
- Enables automatic relay-based control
- Reduces the need for separate pressure measurement and control devices
- Helps improve energy management and HVAC system efficiency
- Supports centralized monitoring through Modbus RTU
- Provides a durable solution for demanding building and industrial environments