Senva PW31-3V-025C-D : Wet-Wet Differential Pressure Transducer, 3-Valve Bypass Assembly, 0-25PSI, 4-20mA Output, LCD Display, 7-Year Warranty
Senva’s PW31 Series is designed to streamline installation and provide maximum accuracy. Options for standalone transducer or 3-valve and 5-valve bypass assemblies allow flexibility and save time on installation and commissioning. The single-diaphragm element is temperature compensated to provides superior ±0.25% accuracy. The PW31’s compact, light, and rugged structure combined with IP65 stainless steel construction make it ideal for most installations and capable of withstanding the most rugged environments. Now available with a highly visible, loop-powered LED display. Just plug it in for ease of commissioning and troubleshooting (4-20mA version only).
Applications
- Meet rigid accuracy and/or bypass specifications
- Demand measurement in HVAC systems for pump speed control and local indication
- Process control systems
- Measurement of gases, vapors, and liquids
- Measure pressure changes on pumps for efficiency regulation and energy savings
- Level measurement in tanks and vessels
- Filter status monitoring
- System leak detection
Specifications
| Power Supply | 15-35vdc, 20mA max. |
| Outputs | 2-wire 4-20mA, 3-wire 0-10V, 3-wire 0-5V |
| Operating Temperature (3) | |
| Operating Temperature | -4 to 175°F (-20-80°C) |
| Compensated range | 30 to 158°F (0-70°C) |
| Media Compatibility Transmitter | 316L SS compatible liquids and gases, Viton O-rings |
| Accuracy (2) | ±0.25% |
| Burst Pressure | 500% DP range high side; 300% DP range low side |
| Sensor Enclosure | Laser welded housing, IP65 |
| Pressure Connection Transmitter | 1/4” NPT Female |
| Pressure Connections Manifold | 1/4” NPT female |
| Electrical Connection | DIN43650A |
| Environmental | IP65 (Installed with water-tight fittings) 1/2” conduit adapter included |
(1) This is maximum gauge pressure to maintain the 0.25% accuracy.
(2) FS is defined as the full scale of the selected range. Accuracy includes non-linearity, hysteresis, repeatability, zero and span tolerance.
(3) Stated operating range is for electronics only; Media temperature may be considerably higher. Use of device outside of compensated range may result in drift.
Datasheets
 | Senva PW31 Single Diaphragm Wet Differential Transducer Datasheet |
| Senva PW31 Installation Instructions |
| Wet DP Sensor Selection for Chiller Optimization |
- Series:
- PW31
- Pressure Type:
- Differential
- Media:
- Wet
- Bypass:
- 3-Valve
- Pressure Range:
- 0-25 PSID
- Output Signal:
- 4-20mA
- Display:
- LCD Display
