Dwyer Instruments 645-0 Wet/Wet Differential Pressure Transmitter
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Dwyer Instruments 645-0 wet/wet differential pressure transmitter with quick-response capacitance sensor, 4-20 mA output, and ±0.25% accuracy.
Product details
| Model | 645-0 |
| Manufacturer | Dwyer Instruments |
| Category | Transmitters |
| Availability | Made to order |
Description
Overview
The Dwyer Instruments 645-0 is a wet/wet differential pressure transmitter designed for applications requiring measurement of pressure differences across processes and equipment. It features a quick-response capacitance sensor that converts differential pressure into a 4-20 mA output signal. The transmitter is widely used in industrial process control, filter monitoring, and HVAC systems where accurate, reliable pressure measurement is essential.
Key Features
- Quick response capacitance sensor for fast measurement updates
- 4-20 mA analog output signal
- ±0.25% accuracy across the measurement range
- Bleed ports for complete air elimination from pressure cavities
- Optional 3-valve manifold assembly for easier installation and maintenance
- Wet/wet design suitable for liquid measurements on both sides
Applications
- Process control and automation systems
- Filter condition monitoring and clogging detection
- Refrigeration equipment pressure monitoring
- Pump speed control based on differential pressure
- HVAC system airflow and pressure monitoring
- Liquid level measurement in tanks and vessels
Specifications
| Output Signal | 4-20 mA |
| Accuracy | ±0.25% |
| Sensor Type | Quick Response Capacitance |
| Process Connections | NPT |
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Dwyer Instruments 645-0 Wet/Wet Differential Pressure Transmitter
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