Flex2-ES LWEU/LWNA temperature transmitter
The Flex2 series is a multipurpose weatherproof LoRaWAN transmitter series with several input options for various needs of industrial measurement and monitoring. The LoRaWAN radio offers a long range, especially outdoors, and connectivity to all standard LoRaWAN systems. Compare the Flex devices.
Flex2-ES LWEU/LWNA measures temperature with an external sensor connected to a spring-loaded connector inside the transmitter. The sensor is not supplied, but a thermocouple or a RTD sensor can be used.
The device consists of two parts, a measuring part and a radio part.
Product code measuring part: 20640
Product code radio part Europe: 21607
Product code device Europe: 21479
Product code radio part USA and Canada: 20648
Product code device USA and Canada: 20660
User manual and brochure
Environment
- Operating temperature: -30…+60 °C
- Operating humidity: 0-100 %RH
- Protection class: IP65
- Enclosure material: Plastic (PC+ABS)
Measurements
- Weight:
Radio modules: 35g
Measurement modules: 70g (slight variation between Flex2 models) - Dimensions: Width 60 mm, depth 32.5 mm, height: 197.3 mm
- Cable gland: M12x1.5
Power supply
- Batteries: 3.6V Lithium Thionyl battery pack
- Typical battery life:
With a good radio link and 5 min measurement interval, typically 5 years
With an average radio link and 30 min measurement interval, typically 5 years
With a bad radio link and 30 min measurement interval, typically 3 years
Measuring and data transmission
- Measure interval: Configurable: 0…14400s
- Radio: LoRa radio technology with Murata ABZ-093 LoRaWAN modem
- Antenna: Internal
- Frequency band: EU868: 863-870 MHz / US915: 902-928 MHz
- Transmission power: Max +14 dBm E.R.P.
- Range, line-of-sight: Depends on installation location and environment, in good conditions 10 km
ES module
- Sensor type: RTD
- Cable length: < 30 m
- Measurement range: -200…+650°C
- Accuracy: Accuracy 0.05% rdg + 0.2 °C at 25 °C ambient
- Thermal drift: 0.01 °C/°C
- Sensor type: Thermocouple
- Cable length: < 30 m
- Measurement 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 over +0…+100 °C
