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).
- 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
- Great for data center wet pressure sensing

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) |
Media Compatibility Transmitter |
Transmitter Only |
316L SS compatible liquids and gases, Fluororubber O-rings |
Media Compatibility Manifold |
Connection |
Copper tube, CW614n Brass fittings (2.5-3.5% lead content) |
Sensor Performance |
Type Differential Overload Pressure Sensor Enclosure |
Micro-machined silicon strain gauge Zero Shift ≤0.0035%FS/PSIG line pressure 150%FS Laser welded housing, IP65 |
Connection |
Pressure Connection Transmitter |
1/4” NPT Female |
Display |
Accuracy |
0.1% |
Agency |
Transmitter Only |
CE, RoHS |
(1) This is the maximum gauge pressure to maintain 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 devices outside of compensated range may result in drift.