Tek-Trol, 3120B-G-5-CSA-1-HC-1, 0 to 1500 PSIg Explosion-Proof Piezo Pressure Transmitter with Integrated LCD Display
Features:
- Digital communication HART protocol or Modbus RS485
- Accuracy up to ±0.075%
- 4.20mA W/ Hart output
- Full temp compensated
- Fully-sealed and fully isolated Piezo sensor
- Hastelloy c Diaphragm
- 355° Rotatable display
- Can be configured using push buttons
Applications:
- Water and Wastewater
- Pulp and Paper
- Food Processing
- Oil and Gas
- Chemical
- Power
Tek-Bar 3120B Exp Absolute/Gauge Pressure Transmitter uses the world's advanced silicon Piezo pressure sensor technology and state-of-the-art encapsulation technology. This is a high-performance pressure transmitter with HART or Modbus RS485 communication protocol and is used to measure pressure. It is used to measure liquid, gas, or steam flow as well as the liquid level and density of the medium. It has a high accuracy of up to 0.04% of URLs and has IP67 water-proof protection. Can be configured using the Hart and Push buttons.
Measuring Principle
The Tek-Bar 3120B works on the principle of Piezo technology. The pressure sensor of the transmitter is located on the top of the sensor body, away from the service fluid. This enables mechanical and thermal isolation of the sensor from the fluid in service.
When pressure is applied to the diaphragm and the Piezo sensor, they become stressed and change voltage resistance. This change in resistance is directly proportional to the applied pressure, whichis transferred to the transmitter body using lead wires.
Built on semiconductor technology, the resistance change (piezoelectric effect) is notably higher thanexhibited in standard strain gauges. Therefore, the sensitivity of mono-crystalline sensors is higher than thesensitivity of most other types.
Dimensions:
