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DPV Differential Pressure Air Flow Transmitter
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SKU:IAF-PT-252-10M-10V
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The DPV Multi-function Airflow Velocity/Volume Transmitter is designed to measure airflow in ventilation and air conditioning systems. It determines the speed and amount of air movement by measuring the difference in pressure using flow sensors such as average flow measurement blades (AFMB), L-type pitot tubes, or S-type pitot tubes.
This transmitter is designed to take accurate measurements, even with variations in temperature. It's also built to resist interference from electrical noise commonly found in industrial settings. This makes it a reliable tool for measuring airflow in a range of environments.
The transmitter offers a variety of measurement ranges and units, and it provides different output options. It also includes protection against electrical problems, ensuring dependable operation. An optional remote sensor can be added to measure and adjust for temperature. A display screen and buttons allow users to calibrate the device, change units, set response time, choose between air velocity or volume measurement, and adjust other settings. The device is designed to be durable and protected against dust and moisture.
Specifications
| Parameter | Value |
| Air velocity/volume - Measurement Principle | Differential pressure based measurement using flow sensors like average flow measurement blades AFMB, L or S type pitot tubes |
| Air velocity/volume - Suitable Air Types | Non-combustible, non-corrosive air, insensitive to moisture, dust, condensation, and oil |
| Air velocity/volume - Operating Temperature | -20-70°C |
| Air velocity/volume - Temperature Adjustment | 0~50°C |
| Air velocity/volume - Measurement Range | 0-10/30/100m/s, see models |
| Air velocity/volume - Pressure Tolerance | Overload 10xFS(<1kPa)/8xFS(>1kPa), burst 20xFS(<=1kPa)/10xFS(>1kPa) |
| Temperature remote probe (Optional) - Cable | White PVC cable, 4*0.2mm², 2m length, -40-85°C, Rins>100MΩ (25°C) |
| Temperature remote probe (Optional) - Temperature sensor accuracy | 0.2°C @-40-100°C |
| Temperature remote probe (Optional) - Measurement Range | 0~50°C (others can be set) |
| Measurement Accuracy | Differential Pressure±0.5%FS, velocity/volume±2%FS; temperature±0.2°C |
| Long term stability | ±0.5%FS/Year(pressure) |
| Effect of Temperature on Measurement | <0.03%FS/°C(zero), <0.04%FS/°C (FS) |
| Measurement Response Time | 0.5-30s, adjustable |
| Output Options | 0~10V, 4-20mA (3 wires), 0-5V, 1 channel for velocity/volume; 2 channels if temperature is selected. |
| Output Load | ≤500Ω(current), ≥2kΩ(voltage) |
| Communication | 1 RS485/Modbus, R/W enable, 9600 bps, terminal resistance setting available |
| Display and Controls | Large LCD (with unit display and backlight (N/A for 4~20mA output)) and buttons |
| Display resolution | 0.1 m/s, 1 m³/h or 0.1°C |
| Display update time | <1s |
| Power Requirements | Current 18.5-35VDC (R<sub>L</sub>=500Ω), 8.5~35VDC (R<sub>L</sub>=0Ω), voltage 16-28VAC/16~35VDC, power consumption 1.5VA |
| Connection Type | 5mm ID tubing |
| Zero Adjustment | Easy to set using buttons |
| Operating Temperature | -20~70°C, 0~95%RH (Non cond.) |
| Storage Temperature | -30~85°C, 0~95%RH (Non cond.) |
| Air Temperature Range | -40~100°C |
| Housing Material | Fire retardant PC(UL94V-0), copper connection |
| Protection Rating | IP65 |
| Compatible Measurement Devices | Works with flow sensors like average flow measurement blades AFMB, L or S type pitot tubes |
Models
|
Parameter
|
Value |
| Model | DPV - Multi-function Airflow Velocity/Volume Transmitter |
| Range | 1 - 0-10m/s(0-125Pa) |
| 2 - 0-30m/s(0-1000Pa) | |
| 3 - 0-100m/s(0-10000Pa) | |
| Output | 1 - 0-10VDC |
| 2 - 4-20mA(3 wires) | |
| E - 0-5VDC | |
| 8 - RS485/Modbus RTU | |
| Temp. | 0 - N/A |
| 1 - Remote temperature probe |
