Nokeval Flex2-ES LWEU/LWNA Temperature Transmitter Sensor

Industrial LWEU/LWNA Temperature Transmitter Temperature Sensor

The Flex2 series is a versatile weatherproof LoRaWAN transmitter series with multiple input options to meet diverse industrial measurement and monitoring needs. The LoRaWAN radio provides extensive outdoor coverage and connects to standard LoRaWAN systems.

The Flex2-ES LWEU/LWNA measures temperature using an external sensor connected to a spring-loaded connector within the transmitter. The device comprises a measuring end and a radio end.

Key benefits include:

• High measurement accuracy and reliability
• Weatherproof
• The LoRaWAN radio offers a long range, especially outdoors, and connectivity to all standard LoRaWAN systems
• Ideal for industrial use

Specifications of the Thermocouple/RTD Sensor

Environment

• Operating temperature: -30…+60 °C
• Humidity: 0-100%RH
• Protection class: IP65
• Housing material: Plastic (PC+ABS)

Dimensions

• Weight:
  Radio module: 35g
  Measuring module: 70g (slight variation between different models)
• Dimensions: Width 60 mm, depth 32.5 mm, height 197.3 mm
• Cable sleeve: M12x1.5

Power Source

• Batteries: 3.6V Lithium Thionyl
• Typical battery life:
  With good radio connection and 5 min measurement interval 5 years
  With average radio connection and 30 min measurement interval 5 years
  With poor radio connection and 30 min measurement interval 3 years

Measuring and Data Transmission

• Measurement interval: Configurable: 0…14400s
• Radio: LoRa radio technology + Murata ABZ-093 LoRaWAN modem
• Antenna: Internal
• Frequency range: EU868: 863-870 MHz / US915: 902-928 MHz
• Transmission power: Max +14 dBm ERP
• Range, line of sight: depends on installation location and environment, in good conditions 10 km

ES Module

• Sensor: RTD
  • Cable length: < 30 m
  • Measuring range: -200…+650°C
  • Accuracy: 0.05% rdg + 0.2 °C, 25 °C ambient
  • Thermal imaging: 0.01 °C/°C
• Sensor: Thermocouple
  • Cable length: < 30 m
  • Measuring range: mV: -30…2000mV
  • (Linearity error):
    TcB: 400…1700 °C (0.3 °C)
    TcC: 0…2300 °C (0.5 °C)
    TcD: 0…2300 °C (1 °C)
    TcE: -100…900 °C (0.2 °C)
    TcG: 1000…2300 °C (2 °C)
    TcJ: -160…950 °C (1 °C)
    TcK: -150…1370 °C (0.5 °C)
    TcL: -150…900 °C ( 0.5 °C)
    TcN: 0…1300 °C (0.1 °C)
    TcR: 0…1700 °C (0.5 °C)
    TcS: 0…1700 °C (0.5 °C)
    TcT: -200…400 °C (1 °C)
  • Accuracy: Typically ±1.0°C in the range +0…+100 °C

Applications and Uses for the Temperature Sensor

The Flex2-ES LWEU/LWNA is suitable for various industrial applications, including monitoring temperature in diverse environments. Its uses include measuring and transmitting temperature data using an external sensor, contributing to efficient environmental control and process optimisation in industrial settings.