PT12 Pressure & Temperature

The PT12 Pressure & Temperature sensor for Water level monitoring. Designed to resist the elements so the PT12 delivers accurate water level (pressure) and temperature readings in rugged environments.

Contact Van Walt

Advantages

The PT12 can transform your analog sensors into a digital sensor system. Easy to connect with SDI-12 recorders— convenient for an existing SDI-12 system plus a Modbus® RTU communication interface for further flexibility. Delivers great noise immunity, thermal performance, and transient protection.

  • Designed for rugged conditions, the PT12 delivers accurate pressure and temperature
  • SDI-12 v1.3 interface
  • Modbus® RTU interface
  • Optional U.S.G.S. OSW accuracy enhanced calibration on the 15 PSIG unit.
Read More

PT12 Pressure & Temperature

Call Van Walt
+44 (0) 1428 661 660 Call Van Walt
+64 (0)3443 5326 Call Van Walt
+27 21 518 1347

PT12 Pressure & Temperature Equipment Options:

Applications

  • Monitoring groundwater, well, tank and tidal levels
  • Pump testing
  • Flow monitoring

Specifications

Housing & Cable
Weight
0.8 lb. (0.4 kg)
Body Material
316 stainless or titanium
Wire Seal Material
Fluoropolymer and PTFE
Cable
Submersible: polyurethane, polyethylene, or ETFE; 4 lb./100 ft., 1.8 kg/30 m; 2000 ft max for Modbus®
Desiccant
1-3 mm indicating silica gel
Field Connector
Available as an option
Temperature
Operating Range
Recommended: -15 ̊ to 55 C̊ (5 ̊ to 131 ̊F) Requires freeze protection kit if using pressure option in water below freezing.
Storage Range
-40 ̊ to 80 ̊C (-40 ̊ to 176 ̊F)
Power
Voltage
9-16Vdc, 24Vdc over voltage protection, electromagnetic & transient protection IEC-61000 – 4-3, 4-4, 4-5, 4-6
Supply Current
Active 3mA average/ 10mA peak; sleep 150 μA
Communication
Modbus®
RS485 Modbus® RTU, output=32bit IEEE floating point
SDI-12
SDI-12 (ver. 1.3) – ASCII
Output Channels
Temperature
Depth/Level1
Element
Digital IC on board
Silicon strain gauge transducer, 316 stainless or Hastelloy
Accuracy
±0.5°C — 0° to 55°C (32° to 131°F)
±2.0°C — below 0°C (32°F)
±0.05% FSO (typical, static)
±0.1% FSO (maximum, static)
(B.F.S.L. 20°C)
Resolution
0.06°C
0.0034% FS (typical)
Ranges
-15° to 55°C (5° to 131°F)

Gauge

  • PSI: 12, 5, 15, 30, 50, 100, 300
  • FtH2O: 2.32, 12, 35, 69, 115, 231, 692
  • mH2O: 0.72, 3.5, 10.5, 21, 35, 70, 210

Absolute3

  • PSI: 30, 50, 100, 300
  • FtH2O: 35, 81, 196, 658
  • mH2O: 10, 24, 59, 200
Compensated
0° to 40°C (32° to 104°F)
Max operating pressure
1.1 x full scale
Over pressure protection
3x full scale up to 300psi – for > 300psi (650 ft or 200 m) contact factory
Burst pressure
1000 psi (approx. 2000 ft or 600 m)
Environmental
IP68, NEMA 6P
* Specifications subject to change. Please consult out web site for the most current data (inwusa.com). Modbus is a registered trademark of Schneider Electric.
1 Higher pressure ranges available upon request
2 ±0.25% accuracy FSO (max) at this range
3 Depth range for absolute sensors has 14.7 PSI subtracted to give actual depth allowed

Resources

Video

Manuals & Downloads

Related Equipment

Oil Interface Meters

Detect hydrocarbons in wells & boreholes with Van Walt's Oil Interface Meters. Highly accurate so will detect layers as thin as 1.52 mm. Fits in a 19 mm diameter well. Uses a 16mm probe to detect...

Read More

WS6 Weather Sensor

A compact weather sensor from LAMBRECHT meteo, an AEM brand, Germany. With no moving parts this is a low maintenance sensor. An internal intelligent heating system works in relation to the wind speed and...

Read More

PT2X Pressure & Temperature Sensor

The PT2X Pressure & Temperature Sensor. Highly accurate water level sensor. So used for observing flow patterns, testing pumps and monitoring groundwater. Versatile, highly accurate sensor  records...

Read More

Have a question for Van Walt?

Please complete the form below; a member of our team will contact you shortly

Oops! Something went very wrong. Please refresh and try again...
+44 (0) 1428 661 660 +64 (0)3443 5326 +27 21 518 1347