IoT Products

PLM2-L is our LoRaWAN Operated Low Power Level Transmitter With Narrow Sensor Head for Liquid Media. It is designed to work in harsh environments and provide accurate measurements. Find out more at Ellenex.

Technical Specification

Sensor

  • Range: 1, 2, 3, 5, 10 (or other ranges up to 200) m H2O
  • Accuracy: ±0.25 (typ.) (combined linearity, hysteresis, repeatability) %Span
  • Resolution: ±0.01 %Span
  • Pressure reference: Vented Gauge
  • Temperature Coefficient of Zero:  ≤±0.03 %FS/°C
  • Temperature Coefficient of Span:  ≤±0.03 %FS/°C
  • Long term stability (1 year): ≤ 0.2 %Span
  • Overload Protection: 150 %FS
  • Load Cycles (Zero to Full Scale): 10+ Million
  • Storage / Operation Temperature: -20 ~ +85 °C
  • Compensated temperature: 0 ~ 60 °C

Power

  • Power Supply: Built-in Replaceable Lithium Battery, External Power (option)
  • Rated Voltage: 3.6V
  • Battery Lifetime: 100,000+ Readings and 20,000+ Transmission
    (with UDP protocol/ more than 10 years for most of applications)

Physical Specification

• Materials: O-ring: Viton, Body: SS304, Diaphragm: SS316, Oil: Silicon, Enclosure: ASA/POM

• Process Connection: No Process Connection (or on request)

• Weight: ~1,200 (for 3m range) g
• Protection Rate: IP66 and UV protected enclosure and IP68 sensor head

Communication

  • LoRaWAN® Version, Class: 1.0.2revB, Class A (Class C on request) 

  • LoRaWAN® Frequency Zone: AS923, EU868, US902-928, AU915-928 (other zones available on request)

  • LoRaWAN® Activation Type: OTA (default), ABP

  • Sampling Type: Periodic (default), Event triggered

  • Sampling Period: Configurable via downlink (default 4 hours)

  • Transmission Type: Per sample (default), Event triggered, Conditional

  • Parameter Configuration: Over-the-air via LoRaWAN® downlinks, Locally via wireless connectivity

  • Firmware Update: Locally via Wireless Connectivity, Over The Air

 

TRANSMISSION PROTOCOLS:

ISDN » W-Lan

CHARACTERISTICS:

Environment » Temperature Range » Industrial (-25°C / +65°C)