IoT Products

PLM2-N is our NB IoT - Cat-M1 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: 50,000+ Readings and 10,000+ 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: ~1,300 (for 3m range) g
• Protection Rate: IP66 and UV protected enclosure and IP68 sensor head

Communication

  • SIM Card Type: 4FF Nano-SIM, from any Network Provider
  • Firmware Update: Over The Air, Locally via Wireless Connectivity
  • Sampling Period: Configurable via downlink (default 4 hours)
  • Power Consumption: Power Saving: < 5uA, Transmission: < 220mA
  • Communication Standards: Cat-NB1 (NB-IoT), Cat-M1 (option of back support by GPRS)

  • Communication Bands: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28 and B39

  • Data Rates: Cat-M1: 375Kbps (DL)/375Kbps (UL) NB-IoT: 32Kbps (DL)/70Kbps (UL)

  • TX Power: 23dBm

  • Min Receiver Sensitivity: Cat-M1: -107dBm, NB-IoT: -113dBm

  • Antenna: Internal (Default)/ External (customised options available)

  • Optional Features: 

    • Attach without PDN (Packet Data Network)

    • Support for IPV6
    • SMS communication
    • Mobility support (Cat-M1 only)

TRANSMISSION PROTOCOLS:

CDMA EvDO Rev. A » LTE

CHARACTERISTICS:

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