Seametrics PT12 Pressure & Temperature Transducer (Modbus / SDI-12)
Seametrics PT12 Pressure & Temperature Transducer (Modbus / SDI-12)
The Seametrics PT12 is a submersible pressure and temperature transducer that combines a Modbus® RTU communication interface with an SDI-12 interface in a single device. The combined output lets the PT12 transform an analog sensor network into a digital sensor system and slot directly into existing SDI-12 recorders.
The transducer is engineered for noise immunity, thermal performance, and transient protection — targeted at groundwater, well, tank, tidal-level, pump-test, and flow-monitoring sites where instrumentation must survive both electrical and environmental stress.
- Features & Benefits
- Applications
- Product manuals
- Product specs
- Modbus® RTU + SDI-12 interfaces in one device
- Digitizes analog sensor networks — convert legacy instrumentation to a digital system
- Drop-in SDI-12 recorder compatibility
- Noise immunity for stable readings in electrically noisy environments
- Strong thermal performance
- Transient protection
- Monitoring groundwater, well, tank and tidal levels
- Pump testing
- Flow monitoring
| Pressure Ranges | Gauge: 1, 5, 7, 15, 30, 50, 100, 300 psi; depth/level up to 692 ft (210 m) H₂O |
|---|---|
| Temperature Range | -15 to 55 °C (5 to 131 °F) |
| Accuracy | ±0.5 °C (0–55 °C), ±2.0 °C (below 0 °C); ±0.05% FSO typical, ±0.1% FSO max (static) |
| Output | Modbus RTU (RS-485); SDI-12 v1.3 (ASCII, 32-bit IEEE float) |
| Power Supply | 9–15 VDC (3 mA avg / 10 mA peak; 150 µA sleep) |
| Wetted Materials | 316 SS or titanium; Viton; Acetal |
| Operating Temperature | -15 to 55 °C (5 to 131 °F); storage -40 to 80 °C (-40 to 176 °F) |
| Enclosure Rating | IP68, NEMA 6P |
| Cable | Submersible: polyurethane, polyethylene or ETFE |
| Process Connection | 1/4" NPT inlet |
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