Watteco - Flash'O sensor - LoRaWAN

LoRaWAN® Flash'O is a simple and economical solution that transforms any electronic meter emitting light pulses into a meter communicating on a public or private LoRaWAN®long range and bidirectional network.

Flash'O counts and accumulates the number of light flashes. The power consumption can be estimated by the remote server from the energy weight of each flash (pulses per kWh or Wh) indicated on the meter. The remote optical probe is simply attached to the meter with magnets or Velcro. The cable length is about 50 cm.

The sensor is equipped with :
- an NFC identification tag (product number, serial number, manufacturing batch),
- a magnetic switch for activation and deactivation.

The counting data can be stored in local memory and compressed before being transmitted on the public or private LoRaWAN® network. This transfer technique is particularly well suited to the transmission of load curves as it considerably reduces the amount of data transmitted while preserving the sensor's autonomy.

When powered by a 3.6V 3.6Ah battery, the autonomy of the sensor is 12 years (data compression mode) for a configuration performing one measurement per hour and one transmission per day.

FUNCTIONS

• Metering and radio frequency remote reading of any electronic meter emitting light flashes
• Remote reading of the load curve
• Easy to install and use
• Counting and accumulation of light flashes up to 500 pulses per second
• Infrared optical sensor
• Differential data compression
• Up to 12 years of autonomy (data compression mode)

TECHNICAL CHARACTERISTICS

• RADIO FREQUENCY
  • Frequency (MHz) EU: 863-870
  • Transmitted power (dBm) +14
  • Sensitivity (dBm) -140
• FIRMWARE
  • LoRaWAN® protocol, Class A
  • Transmission cycles 10mn, 1h, 12h or specified by the networkData compression yes (differential coding) or no
  • Activation method Activation by Personalization (ABP)
  • Over-The-Air Activation (OTAA)
  • Data encryption AES128
  • Alarm threshold configuration Battery voltage: 0.1V to 3.6V in 0.1V steps
• LED
  • Light pulse Fits on any electronic meter whose flash emits at a rate lower than 500 pulses/second
• POWER SUPPLY
  • Voltage 3,6V / 3600mAh - lithium battery
  • Autonomy in a range of +10°C
  • to +25°C
  • Up to 12 years with 1 measurement and 1 transmission per day
  • Up to 8 years - 1 measurement every hour and 1 transmission per day
• INTERFACE
  • LEDs Configuration and association on the network
  • Magnetic switch Reset, ON/OFF
• CASE
  • Dimension (mm) 92 x 92 x 56
  • IP class IP55
  • Installation Fixation of the optical sensor by magnet or velcro
  • Cable length : 0,5m
• ENVIRONMENT
  • Operating temperature (°C) -20 / +50
  • Storage temperature (°C) -10 / +60