IP65 Differential Air Pressure Sensor Diff Pressure Sensor For HVAC System
differential air pressure sensor diff pressure sensor
Description
The working principle of the differential pressure transmitter transfers the differential pressure taken by the standard throttling parts (nozzles, orifice plates, venturi tubes) to the isolation diaphragm on both sides of the transmitter through the pressure pipes on both sides of the differential pressure transmitter, and then transmits the differential pressure signal to the measuring element through the sealing fluid (silicone oil, fluoro oil) in the diaphragm, and then the measuring element will convert the differential pressure signal into the corresponding electrical signal and transmit it to the converter, Finally, it is transformed into standard electrical signals (1~5V, 4~20mA) after being processed by operational amplifier and other units.
Generally, the installation site of the differential pressure transmitter is far away from the control room. In order to ensure that the signal is not distorted during transmission, the standard current signal of 4~20mA is generally used as the transmission signal, and the contact signal in the control room becomes 1~5V.
Feature
- Ranges from -25/+25Pa to -10000/+10000Pa (according to models)
- Auto zero manual calibration
- Voltage, current, digital signal output
- Standard accuracy <±1% FS
- IP65 house protection
- When ≤100Pa,accuracy＜±3%FS±2Pa
Application
- HVAC system
- Pharmaceutical clean rooms
- Electronic clean rooms
- Medical clean rooms
- Commercial buildings
- Public transport hub
Technical data
| Model | KDP110 |
| Measurement Units | Pa,mmH2O,inWG,mmHG,KPa,mbar |
| Accuracy | <±1% FS@-5 to +65℃ |
| Response Time | 0.5s |
| Repeat Stability | ±0.01 % at FS /Year |
| Resolution | 0.1 Pa; 0.1 mmH2O; 0.01mbar; 0.01mmHG |
| Media | Air and neutral gases |
| Operating Temperature | -20…+70℃ |
| Storage Temperature | -40…+60℃ |
| Power Consumption | ＜1.5W |
| Tolerated over pressure | x15 |
| Power Supply | 16~30VAC/DC (3wire) / 18~30VDC (2wire) |
| Output Signal | 4-20mA(2wire) |
| 4-20mA(3wire) | |
| 0~5V/0~10VDC(3wire) | |
| RS-485 | |
| Customized | |
| Auto Zero | Manual calibration |
| Housing Material | PC&ABS,UL94V-0 |
| Protection Class | IP65/NEMA4 |
| Cable Gland | M16*1.5 |
Dimension
Measuring range adjustment
Output setting(3 wire Model)
Manual Zero-point correction
Ordering guide
KDP110-Range-Output
| Model | Range | Output | ||
| KDP110 | -100~+100Pa | (1) | 4-20mA(2 wire) | (E) |
| -1000~+1000Pa | (2) | 4-20mA(3 wire) | (F) | |
| -2000~+2000Pa | (3) | 0-5/0-10V(3 wire) | (G) | |
| -10000~+10000Pa | (4) | RS-485 | (H) | |
| Customized | ||||
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