Smart Pressure Sensing for Modern Environments
The POLWAX DPT50 series is designed for precise and reliable differential pressure monitoring in HVAC/R, building automation, cleanrooms and industrial applications. With field-selectable measurement ranges, multiple engineering units, flexible output options and USB configuration, the DPT50 provides a versatile solution for modern pressure monitoring and control systems.
Flexible Differential Pressure Monitoring
The POLWAX DPT50 series is engineered for accurate and dependable differential pressure measurement in HVAC/R, building automation, ventilation, cleanroom and industrial environments.
The series provides a measuring capability up to 0–7000 Pa and supports configurable pressure ranges that can be selected according to the application requirement.
The DPT50 family includes DPT50 WM, DPT100 WM and DPH100 WM configurations. The DPH100 WM additionally combines differential pressure measurement with temperature and relative humidity measurement.
Multiple engineering units, 4–20mA and RS485 MODBUS RTU outputs, optional 0–10V, USB configuration and flexible mounting options make the DPT50 series suitable for a wide range of monitoring and building automation requirements.
DPT50 WM
Differential pressure transmitter designed for precise pressure monitoring with configurable ranges and flexible output options.
Output: 4–20mA / RS485 MODBUS RTU
Supply: 12–24 VDC
DPT100 WM
Differential pressure transmitter configuration for flexible pressure monitoring in HVAC/R and building automation applications.
Output: 4–20mA / RS485 MODBUS RTU
Supply: 12–24 VDC
DPH100 WM
Combined differential pressure, temperature and humidity monitoring solution for applications requiring multiple environmental parameters.
Temperature: -30°C to 80°C
Humidity: 0–100% RH
DPT50 Series Technical Specifications
Complete technical specifications for the POLWAX DPT50 WM, DPT100 WM and DPH100 WM configurations.
| Specification | DPT50 WM | DPT100 WM | DPH100 WM |
|---|---|---|---|
| Media Compatibility | Air, non combustible, non corrosive gases | ||
| Part Code | 0395 3300 | 0395 3301 | 0395 3302 |
| Measuring Range | 0–7000 Pa | 0–7000 Pa | 0–7000 Pa |
| Temperature Range | — | — | -30°C to 80°C |
| Humidity Range | — | — | 0–100% RH |
| Configurable Ranges |
0–25 Pa, 0–50 Pa, 0–100 Pa, 0–250 Pa,
0–500 Pa, 0–1000 Pa, 0–2000 Pa, 0–2500 Pa, 0–5000 Pa, 0–7000 Pa |
||
| Selectable Units | Pa & mmWC | ||
| Measuring Units | Pa, kPa, mbar, inchWC, mmWC, psi | ||
| Accuracy | ±0.25% / ±0.5% of Full Scale | ||
| Output | 4–20mA, RS485 MODBUS RTU / 0–10V Optional | ||
| Signal Connection | 3 Wire | ||
| Load Resistance | 47 to 470 Ω @ 24 VDC | ||
| Supply Voltage | 12–24 VDC | ||
| Operating Temperature | 10°C to 60°C | ||
| Storage Temperature | 10°C to 80°C | ||
| Pressure Limit | 1 PSI Maximum | ||
| Switch | Digital push button | ||
| Configuration Interface | USB Interface | ||
| Enclosure | ABS | ||
| Protection Class | IP54 | ||
| Electrical Connections | Screw terminals | ||
| Process Connection | Push on connection for 3/16” ID tubing | ||
| Weight | 70 Gram | ||
| Response Time | 500 ms | ||
| Scope of Supply | Calibration Certificate / GUI Software, Manual | ||
Precision Pressure & Environmental Monitoring
The DPT50 series combines accurate differential pressure measurement, configurable ranges, selectable engineering units, flexible outputs and fast response for modern HVAC/R and industrial monitoring applications.
Differential Pressure
Designed for precise differential pressure monitoring in air and compatible non-combustible, non-corrosive gases.
0–7000 Pa Range
The series supports a wide differential pressure measuring capability up to 7000 Pa with configurable ranges.
High Accuracy
The DPT50 series provides accuracy of ±0.25% or ±0.5% of full scale according to the applicable measurement configuration.
Multiple Engineering Units
Selectable units include Pa, kPa, mbar, inchWC, mmWC and psi for flexible pressure monitoring.
500 ms Response Time
The fast 500 ms response time supports responsive differential pressure monitoring and control.
Temperature & RH Option
The DPH100 WM configuration adds temperature measurement from -30°C to 80°C and relative humidity measurement from 0–100% RH.
Engineered for Flexible Pressure Monitoring
The POLWAX DPT50 series combines accuracy, flexible configuration, multiple outputs and versatile mounting options for modern HVAC/R, building automation and industrial applications.
High Accuracy
Provides ±0.25% / ±0.5% full-scale accuracy for dependable differential pressure measurement.
Ten Configurable Ranges
Select from ten pressure ranges from 0–25 Pa through 0–7000 Pa according to application requirements.
Multiple Engineering Units
Supports Pa, kPa, mbar, inchWC, mmWC and psi for flexible system configuration.
4–20mA Output
Provides a standard industrial analog output for compatible monitoring and control systems.
RS485 MODBUS RTU
Digital communication supports integration with compatible automation and building management systems.
USB Configuration
The USB configuration interface simplifies setup of pressure ranges, outputs and engineering units.
Multiple Mounting Options
The DPT50 series supports panel, wall, DIN rail and duct mounting for flexible installation.
IP54 Protection
The IP54 protection class provides suitable enclosure protection for compatible indoor and equipment-monitoring environments.
Temperature & Humidity Option
The DPH100 WM configuration combines differential pressure with temperature and relative humidity measurement.
Flexible Setup. Easy Integration.
The POLWAX DPT50 series is designed to provide flexible field configuration and integration into HVAC/R, building automation and industrial monitoring systems.
Users can select suitable pressure ranges and engineering units while choosing compatible output and communication options according to system requirements.
- 0–7000 Pa Maximum Measuring Range
- 10 Configurable Pressure Ranges
- 4–20mA Output
- RS485 MODBUS RTU Communication
- Optional 0–10V Output
- Pa, kPa, mbar, inchWC, mmWC & psi Units
- USB Configuration Interface
- Digital Push-Button Interface
- 12–24 VDC Supply
- 3-Wire Signal Connection
- 47 to 470 Ω Load Resistance @ 24 VDC
- Panel, Wall, DIN Rail & Duct Mounting
Advanced Sensing. Flexible Integration.
The DPT50 series combines accurate differential pressure measurement with configurable ranges, selectable engineering units, USB configuration and multiple output options.
The DPH100 WM configuration additionally provides temperature and relative humidity measurement for applications requiring combined pressure and environmental monitoring.
Differential Pressure Monitoring Across Applications
The POLWAX DPT50 series is designed for applications where accurate differential pressure monitoring, airflow management and system performance are important.
HVAC / R
Monitor differential pressure in HVAC/R systems, air-handling equipment and ventilation installations.
Clean Rooms
Support pressure-difference monitoring in controlled environments used in pharmaceutical, biotechnology and healthcare facilities.
Industrial Processes
Monitor differential pressure across compatible industrial equipment, filters, ducts and process systems.
Building Automation
Integrate pressure measurement into building automation and smart ventilation systems using compatible outputs.
Air Filter Monitoring
Monitor pressure differences across air filters to help identify increasing pressure drop and maintenance requirements.
Fan Monitoring
Support fan and airflow monitoring applications where reliable differential pressure measurement is required.
Indoor Air Quality
Support environmental monitoring systems that use differential pressure data for ventilation and air-management applications.
Ventilation Systems
Monitor pressure conditions in ventilation systems to support stable airflow and system operation.
Energy Efficiency Monitoring
Use differential pressure information to support airflow and equipment-performance monitoring in building systems.
Product Resources
Access the DPT50 technical documentation or contact POLWAX for quotation and technical assistance.
Reliable Differential Pressure Monitoring
The POLWAX DPT50 series combines high-accuracy differential pressure measurement, configurable pressure ranges, multiple engineering units, 4–20mA output, RS485 MODBUS RTU, optional 0–10V, USB configuration and flexible mounting options for HVAC/R, cleanroom, industrial and building automation applications.