ブランド名:
Dwyer
モデル番号:
645-4
Dwyer Series 645 Wet/Wet Differential Pressure Transmitter (645-x)
Product Introduction
The Dwyer Series 645 Wet/Wet Differential Pressure Transmitter is a high-precision instrument designed for measuring differential pressure in compatible gases and liquids. Featuring a quick-response capacitance sensor, it delivers a 4–20 mA output proportional to pressure changes with ±0.25% accuracy. The 2-wire design simplifies installation, while bleed ports in the optional 3-valve manifold allow air elimination for reliable readings. Ideal for process control, filter monitoring, HVAC systems, and liquid level measurement, this transmitter combines rugged performance with ease of maintenance for industrial applications.
Product Features
High-Accuracy Measurement:
±0.25% full-scale accuracy ensures precise differential pressure monitoring.
Capacitance sensor offers fast response to pressure changes.
2-Wire Design:
Simplifies wiring and reduces installation costs in industrial setups.
Wet/Wet Compatibility:
Suitable for both gas and liquid media on pressure and reference ports.
Versatile Applications:
Process control, filter condition monitoring, refrigeration equipment, pump speed control, HVAC, and liquid level measurement.
Optional 3-Valve Manifold:
Enables easy installation and maintenance.
Bleed ports eliminate air from lines and pressure cavities for accurate readings.
Reliable Performance:
Robust construction for long-term use in industrial environments.
Models
| Model | Description |
| 645-0 | Wet/wet differential pressure transmitter, range 0-1 psid. |
| 645-0-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range 0-1 psid. |
| 645-1 | Wet/wet differential pressure transmitter, range 0-2 psid. |
| 645-1-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range 0-2 psid. |
| 645-10 | Wet/wet differential pressure transmitter, range ±0.5 psid. |
| 645-10-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range ±0.5 psid. |
| 645-11 | Wet/wet differential pressure transmitter, range ±1 psid. |
| 645-11-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range ±1 psid. |
| 645-12 | Wet/wet differential pressure transmitter, range ±2.5 psid. |
| 645-12-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range ±2.5 psid. |
| 645-13 | Wet/wet differential pressure transmitter, range ±5 psid. |
| 645-13-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range ±5 psid. |
| 645-14 | Wet/wet differential pressure transmitter, range ±10 psid. |
| 645-14-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range ±10 psid. |
| 645-15 | Wet/wet differential pressure transmitter, range ±25 psid. |
| 645-15-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range ±25 psid. |
| 645-16 | Wet/wet differential pressure transmitter, range ±50 psid. |
| 645-16-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range ±50 psid. |
| 645-2 | Wet/wet differential pressure transmitter, range 0-5 psid. |
| 645-2-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range 0-5 psid. |
| 645-3 | Wet/wet differential pressure transmitter, range 0-10 psid. |
| 645-3-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range 0-10 psid. |
| 645-4 | Wet/wet differential pressure transmitter, range 0-25 psid. |
| 645-4-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range 0-25 psid. |
| 645-5 | Wet/wet differential pressure transmitter, range 0-50 psid. |
| 645-5-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range 0-50 psid. |
| 645-6 | Wet/wet differential pressure transmitter, range 0-100 psid. |
| 645-6-3V | Wet/wet differential pressure transmitter with 3-valve manifold assembly, range 0-100 psid. |
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