|  |

| |

Enabling better global research outcomes in soil, plant & environmental monitoring.

GT3-15 4-20mA Tensiometer Transducer

The vacuum inside the tensiometer is measured by a pressure transducer, which gives a continuous analogue output signal. This version of the GT3-15 has a 4-20mA current output.

A resolution of 0.1 kPa (1 cm H2O) can be attained for the GT3 Tensiometer Transducer.

GT3-15 Tensiometer Transducer -100 kPa to 100 kPa Features

  • Pressure and suction measurements (+100kPa to -100kPa)
  • Rapid response
  • Temperature compensated in the range 0–50°C — typical shift 0.5% full scale.
Range: +100kPa to -100kPa
Temperature shift: Temperature compensated in the range 0–50°C—typical shift 0.5% full scale.
Resolution: 0.1 kPa
Accuracy: ±1.0% span

Measuring Principle

The soil water tension is transmitted via the ceramic cup into the tensiometer. The vacuum inside the tensiometer is measured by a pressure transducer, which gives a continuous analogue output signal.

Resolution and Accuracy

A resolution of 0.1 kPa (1 cm H2O) can be attained for the GT3 Tensiometer Transducer.
The accuracy actually obtained is related to the calibration and resolution of the AD converter. In field applications the values obtained should consider the shaft/cup length of the tensiometer: 1 cm = 0.1 kPa.