Technical Specifications
| Measuring Ranges | Eight selectable ranges depending on model, typically from ±25 Pa up to ±7000 Pa |
| Output Signals | 0–10 V, 2–10 V, or 4–20 mA (three-wire system) |
| Selectable Units | Pa, kPa, mbar, inch WC, mm WC, psi |
| Accuracy | For pressures below 125 Pa: ±(1% + 2 Pa) | For pressures above 125 Pa: ±(1% + 1 Pa) |
| Zero Calibration | Automatic or manual zero (depending on model version) |
| Response Time | Adjustable between 0.8 s and 8 s |
| Over-pressure Protection | Proof pressure up to 25 kPa, burst pressure up to 30 kPa |
| Media | Dry air or non-aggressive gases |
| Temperature Range | Operating −20 °C to +50 °C |
| Display | Optional LCD back-lit display (for D versions) showing measured value and unit |
| Power Supply | 24 VAC / DC |
| Protection Class | IP54 |
| Housing Material | ABS base with polycarbonate cover |
| Connection Ports | 5 mm and 6.3 mm pressure fittings |
| Weight | Approximately 150 g |
DPT-R8 Differential Pressure Transmitter
A differential pressure transmitter is a precision instrument designed to measure the pressure difference between two points in an air or gas system. It plays a vital role in monitoring airflow, filter condition, duct pressure, and ventilation performance across industrial and commercial applications. Our air differential pressure transmitter delivers accurate measurements, reliable operation, and long-term stability, making it an excellent choice for HVAC systems, clean rooms, laboratories, pharmaceutical facilities, and building automation projects.
Designed for continuous monitoring, this differential pressure transmitter provides dependable performance in demanding environments. Its compact design, easy installation, and high measurement accuracy help maintain system efficiency while reducing maintenance costs. Whether you need pressure monitoring for air handling units, ventilation ducts, or industrial processes, this solution ensures consistent and reliable results.
What is a Differential Pressure Transmitter?
A differential pressure transmitter measures the difference in pressure between two separate points and converts that value into an electrical output signal for monitoring and control systems. It continuously detects pressure variations and helps maintain proper airflow, equipment performance, and process stability.
Often used as a pressure indicating transmitter, it provides real-time pressure information that allows operators to monitor system performance and respond quickly to changing conditions. These transmitters are widely used for airflow measurement, filter monitoring, duct pressure control, and industrial process applications where accurate pressure measurement is essential.
Key Features
- High-accuracy pressure measurement
- Stable and reliable long-term performance
- Compact and durable housing
- Fast response time
- Easy installation and commissioning
- Suitable for low-pressure air and gas monitoring
- Analog output for seamless integration with control systems
- Excellent performance in commercial and industrial environments
- Designed for continuous operation with minimal maintenance
- Ideal as an air differential pressure transmitter for critical airflow applications
Applications of Air Differential Pressure Transmitter
Our air differential pressure transmitter is widely used across industries where accurate pressure monitoring is essential for operational efficiency and safety.
Typical Applications
- HVAC systems
- Air handling units (AHUs)
- Clean rooms
- Pharmaceutical manufacturing
- Hospitals
- Research laboratories
- Ventilation systems
- Air ducts
- Filter monitoring
- Fan monitoring
- Building automation systems
- Industrial process control
As an HVAC differential pressure transmitter, it helps maintain balanced airflow, monitors clogged filters, and supports efficient energy management in commercial buildings. The Differential Air Pressure Transmitter is also suitable for maintaining controlled environments where precise air pressure regulation is critical.
How the Differential Pressure Transmitter Works
A differential pressure transmitter connects to two pressure ports—one high-pressure side and one low-pressure side. The internal sensing element measures the pressure difference and converts it into an electrical signal such as 4–20 mA or voltage output. This signal is then transmitted to PLCs, controllers, or building management systems for continuous monitoring.
As a reliable pressure indicating transmitter, it provides real-time feedback that enables operators to identify airflow restrictions, pressure drops, or filter blockages before they affect system performance. This continuous monitoring improves operational reliability and helps prevent costly equipment failures.
Benefits
Choosing our Differential Air Pressure Transmitter offers several advantages:
- Precise pressure measurement
- Improved airflow monitoring
- Better energy efficiency
- Reduced maintenance requirements
- Continuous system monitoring
- Reliable performance in demanding environments
- Easy integration with automation systems
- Long operational life
- Enhanced process control
- Suitable for industrial and commercial applications
When used as an HVAC differential pressure transmitter, it helps optimize ventilation performance while ensuring stable indoor air conditions.
Why Choose Agile Nobel?
Agile Nobel offers reliable pressure monitoring solutions designed for industrial automation and HVAC applications. Every differential pressure transmitter is manufactured to deliver consistent accuracy, durability, and dependable long-term performance.
Why Customers Choose Us
- High-quality industrial products
- Accurate and stable measurements
- Reliable technical support
- Durable construction
- Easy installation
- Fast response performance
- Competitive pricing
- Timely delivery
- Suitable for a wide range of industrial applications
Frequently Asked Questions
Q1. What is a differential pressure transmitter?
A differential pressure transmitter measures the pressure difference between two points in an air or gas system and converts it into an electrical output signal. It is widely used for airflow monitoring, filter supervision, HVAC systems, and industrial process control.
Q2. How does an air differential pressure transmitter work?
An air differential pressure transmitter compares pressure from two separate ports using an internal sensing element. It converts the measured pressure difference into a standard electrical signal for continuous monitoring, control systems, and building automation applications.
Q3. What is a pressure indicating transmitter?
A pressure indicating transmitter measures pressure and continuously sends an electrical signal to monitoring or control systems. It provides accurate pressure readings for industrial equipment, HVAC applications, and automation systems to ensure efficient operation.
Q4. Where is a differential pressure transmitter used?
A differential pressure transmitter is commonly used in HVAC systems, clean rooms, pharmaceutical plants, hospitals, laboratories, air handling units, ventilation ducts, and industrial processes where accurate pressure and airflow monitoring are essential.
Q5. What is an HVAC differential pressure transmitter?
An HVAC differential pressure transmitter is designed to monitor pressure differences in ventilation systems, air ducts, filters, and air handling units. It helps improve airflow control, maintain indoor air quality, and optimize overall HVAC system performance.
Q6. What is the difference between a pressure transmitter and a differential pressure transmitter?
A standard pressure transmitter measures pressure at a single point, while a differential pressure transmitter measures the pressure difference between two points. This makes it ideal for airflow monitoring, filter status, and pressure balancing applications.
Q7. Can a Differential Air Pressure Transmitter monitor air filters?
Yes. A Differential Air Pressure Transmitter monitors the pressure drop across air filters to detect clogging or reduced airflow. This helps schedule timely filter replacement, improve HVAC efficiency, and reduce unnecessary maintenance costs.
Q8. What output signals are available in a differential pressure transmitter?
Most differential pressure transmitter models offer standard outputs such as 4–20 mA, 0–10 V, or other analog signals. These outputs integrate easily with PLCs, BMS, SCADA, and industrial automation systems for reliable pressure monitoring.