Model TT111 RTD Temperature Transmitter

Brand: Tel-Tru Manufacturing Co.

Factory calibrated for fixed range, the TT111 provide a 4-20 mA output linearized to temperature for Pt100. The wide temperature range makes the TT111 an excellent choice for temperature signal transmission.

Precision 20-turn potentiometers allow fine adjustment of ZERO and SPAN.

TT111 transmitters are high quality, very accurate, completely linearized and fit into industry standard connection heads.
Features
  • High Accuracy (±0.1%)
  • 2-wire loop-powered 4-20 mA output
  • Linearized output to temperature
  • Input RTD Pt100 with 3-wire compensation
  • Analog design, potentiometer adjustable
  • Factory calibrated fixed ranges
  • Metal housing
  • Fits standard connection heads

Specifications

Accuracy

  • 0.1 % of Full Scale (Includes Effects of Linearity, Hysteresis & Repeatability)

Ambient Temperature Range

  • -40° to 80° C (-40° to 176° F)

Current

  • Excitation Current RTD: 0.8 mA

Enclosure Finish

  • Enamel Painted

Enclosure, Body Material

  • Die Cast Zinc

Linearization

  • ± 0.01 % of Full Scale

Output

  • 4-20 mA Loop Powered, Linear to Temperature

Power Supply

  • 12-32 Vdc, Polarity Protected

Power Supply Effect

  • 0.02 %/V

Resistance

  • Sensor Lead Resistance RTD: 500 ohms, Max.

Sensor Circuit

  • Open Circuit Detection (Over-Scale Limit): 27 mA
  • Open Circuit Detection (Under-Scale Limit): 2.2 mA

Sensor, Probe Connection

  • 3-Wire

Sensor, Probe Type

  • Pt100 RTD, α=0.00385, DIN EN 60751

Span & Zero Adjustments

  • ± 10 % for Zero & Span
  • 20-Turn Potentiometer

Stability

  • Long Term Drift: ± 0.05 % of Full Scale Per Year

Storage Temperature

  • -40° to 80° C (-40° to 176° F)

Temperature Range

  • Pt100: -50° to 600° C (-58° to 1,112° F)

Thermal Drift

  • Span & Zero Drift: ± 0.01 % of Full Scale/°C

Update Time

  • Warm-Up: 30 seconds

Voltage

  • Nominal Voltage: 24 Vdc

show more