FTR264

FTR264 is a wireless 4-channel thermocouple transmitter.

Benefits and features

• 4-channel wireless thermocouple transmitter
• Supports nearly all thermocouples
• Cost-effective option per measurement point

Sold as spare parts only

User Manual

FTR264 Series Manual EN

Inputs

• Thermocouples:  B, C, D, E, G, J, K, L, N, R, S and T as well as mV signal.
• FTR264 screw post connector: Detachable. For 1.5 mm² connection wires
• Overload protection: the input is protected from a maximum of 24 volt overvoltage.

Environment

• Operating temperature: -30…+60 °C
• Operating humidity: 0-100 %RH
• Protection class: IP65, if all cable transits are in use or plugged
• Weight: Approximately 192 g without sensors
• Largest exterior dimensions:
  • Width 102 mm
  • Height 130 mm
  • Depth 35 mm
• Cable transits 4 pcs M12x1.5, cable diameter 1.5-8 mm

Power source

• Battery: 1.5 V, type LR6 (AA) alkaline battery, “heavy-duty”
• Typical battery life: 1.5 years when transmission interval 90 s

Radio transmitter

• Type: unlicensed 433.92 MHz ERC/REC/70-03 sub-band f
• Transmitting frequency: 433.92 MHz ISM band
• Transmitting power up to +10 dBm E.R.P.
• Range:
  • Open space range up to 100 m
  • Indoor range typically 50…100 m
• Antenna: built-in
• Compatible equipment: Nokeval MTR, RTR, FTR, DPR and FT20 series 433.92 MHz radio receivers

To an external temperature sensor

• Sensor: thermocouple sensors
• Sensor cable length: <30 m
• Measuring ranges and linearity error (in parentheses):
  • mV: -30…2,000 mV
  • TcB: 400…1,700 °C (0.3 °C)
  • TcC: 0…2,300 °C (0.5 °C)
  • TcD: 0…2,300 °C (1 °C)
  • TcE: -100…900 °C (0.2 °C)
  • TcG: 1,000…2,300 °C (2 °C)
  • TcJ: -160…950 °C (1 °C)
  • TcK: -150…1,370 °C (0.5 °C)
  • TcL: -150…900 °C (0.5 °C)
  • TcN: 0…1,300 °C (0.1 °C)
  • TcR: 0…1,700 °C (0.5 °C)
  • TcS: 0…1,700 °C (0.5 °C)
  • TcT: -200…400 °C (1 °C)
• Accuracy: (mV) 0.05 %rdg + 0.01 mV
• Accuracy: (thermocouples) 0.05 %rdg + 0.6 °C + lin. error + env. imp.
• Thermal drift: 0.02 °C/°C comp. temp. 25 °C
• Noise (typical, RMS) mV: 2.7 µV TcK: 0.06 °C
• Input loading: (mV) >1 MΩ