Zencus Mono-Transmitter Overview

  • The Zencus Mono-Transmitter design integrates precision sensors, 434MHz radio transmitter and battery in a single compact unit.
  • The design is light but robust and can screw directly into existing connections with no support structure, cables or conduit required.
  • Intrinsically safe: Zone 0 per ATEX EEx ia 1G IIC T4.
  • The 434 MHz radio frequency offers distinct operational advantages compared with higher frequencies (e.g. 2.4 GHz), particularly in congested plant areas where line of sight transmission is not possible. The lower frequency 434 MHz signals reflect off equipment and pipe-work and effectively creating a passive network with multiple transmission paths. The lower frequency signals also penetrate walls and structures to reliably deliver signals in congested areas or buildings.
  • The Mono-Transmitter can transmit up to 200m or up to 3km with Repeaters.
  • Repeaters. The Zencus Mono Transmitter Repeater is an economical low power device that can be deployed in strategic locations to extend the range of Mono Transmitters. The 434 MHz Repeater can be deployed in congested plant areas to extend the range of Mono Transmitters and form a Mesh Network.
  • With typical transmission frequencies between 10 and 60 seconds the Mono-Transmitter has a battery life of between 2 and 10 years, respectively.
  • The Zencus Mono-Transmitter forms part of the Zencus Wireless Network, with up to 200 Mono-Transmitters feeding into a single Zencus Field Transceiver or Gateway for onward data transmission. Data delivery is via the Zencus Data Visualization Suite or directly into the clients existing SCADA system.
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System Architecture

  • The Zencus Mono-Transmitter measures process parameters and transmits readings to a Repeater, Field Transceiver or directly into the Zencus Gateway, with a maximum of 200 Mono-Transmitters linking to a single Field Transceiver or Gateway.
  • The Zencus MT Repeater can be used to extend the range of the Mono-Transmitter up to 3km allowing multiple remote sites to transmit to a single Field Transceiver or Gateway reducing equipment costs and simplifying the network.
  • The Field Transceiver transmits received data over longer distances to the Zencus Gateway. In a Zencus Wireless Network the Field Transceiver is configured as a mesh node ensuring multiple transmission routes to the Gateway.
  • The physical number of Field Transceivers permissible in Zencus network has a theoretical limit of 65,535 but practical considerations such as bandwidth limit individual networks to 100-300 units. Multiple independently addressed networks can co-exist and operate in parallel for larger installations.
  • The Zencus Gateway manages the network and delivers data into the Zencus Data Visualization system, the client SCADA system (directly or via a RTU) or both systems simultaneously when operating in parallel.
System Architecture showing the various transmission options for the Zencus Mono-Transmitter

  System Architecture showing the various transmission
  options for the Zencus Mono-Transmitter
  (click to enlarge)

System Architecture showing the various transmission options for the Zencus Mono-Transmitter

System Architecture showing the various transmission options for the Zencus Mono-Transmitter

Sensor Options

Pressure Sensors: More than 20 range options from 0-70 mbar through to 0-700 bar (0-1 psi through to 0-10,000 psi).
Flow Devices: (Via differential pressure and turbine meters).
Tank Level Monitoring:(Measures hydrostatic pressure).
Temperature Sensors: Ranges -25 to 125 degC (-13 to 257 F). The unique Zencus thermo-clamp allows temperature sensors to be installed with no need for a thermowell.
Pulse Count Sensors: Also RPM sensors.
On / Off Sensors: Also contact open / closed sensors.
Analogue Signal Sensors: e.g. 4-20 mA or 0-10 V.
Vibration Sensors

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