- Available as a weatherproof box or 316 stainless steel tube (titanium optional).
- Provides barometric reference for absolute pressure sensors.
- Automatically compensates for barometric pressure when attached to a PT12 submersible sensor (SDI-12 only).
- Measures pressure and temperature.
The PT12-BV barometric pressure sensor comes as a weatherproof box and provides an ideal barometric reference for absolute pressure sensors.
It also offers automatic barometric compensation when used with SDI-12. Simply attach the PT12-BV to a PT12 submersible sensor and receive barometrically compensated pressure readings. No post-processing of data. No vented cable. No desiccant tubes.
Featuring both an SDI12 (v.1.3) interface and a Modbus® RTU interface, the PT12-BV is easy to connect to recorders and existing monitoring networks, making it the preferred choice for many environmental professionals.
- Weatherproof box constructed with ABS – IP66/67, fluorocarbon, and Buna N (nitrile rubber).
- SDI-12 v1.3 interface.
- Modbus® RTU interface.
- Barometrically compensate attached absolute sensor for level measurement (SDI-12 only).
- Operates on low power.
- Level measurement: barometrically compensate absolute pressure sensors.
- Measure vacuum pressure during vapor extraction pilot testing.
- Supplement aquifer test data in leaky or confined conditions.
- Accurately measure barometric pressure.
The Seametrics PT12-BV comes as a weatherproof stand-alone box or with an automatic compensation wiring option. The PT12-BV measures pressure, temperature, and supply voltage. The weatherproof box is an ideal barometric reference for absolute pressure sensors. This version features both an SDI-12 interface and a Modbus® RTU interface that makes the product easy to connect to recorders and operates on low power. This makes it a preferred choice for many environmental professionals with existing SDI-12 or Modbus® RTU systems.
With the Compensation Wiring Option , the PT12-BV automatically provides barometric compensation for a single attached absolute PT12 submersible pressure sensor. No post processing of data. No need to use a vented cable or worry about maintaining desiccant tubes. This version features an SDI-12 communication interface, making it ideal for many existing environmental systems.
|Housing||Material||Weatherproof box – ABS – IP66/67|
|Dimensions||Box only: 4.3” x 3.1” x 2.5” (10.9 x 7.9 x 6.4 cm)|
|Fluorocarbon and Buna N|
|5 ft (1.5 m) polyurethane cable|
|Options||PT12-BV compensation wiring option; Bulkhead connector|
|Temperature||Operating Range||Recommended: -15˚ to 55˚C (5˚ to 131˚F) Not designed to operate under water|
|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|
|Element||Digital IC on board||Silicon strain gauge transducer, 316 stainless|
|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)
|Resolution||0.06˚C||0.0034% FS (typical)|
|Range||-15˚ to 55˚C (5˚ to 131˚F)||0-16 psia (110 kpa)|
|Compensated||—||0˚ to 40˚C (32˚ to 104˚F)|
|Over pressure protection||2x|
*Specifications subject to change. Please consult out web site for the most current data (seametrics.com). Modbus is a registered trademark of Schneider Electric.