envoy

Envoy

The ENVOY is a custom remote telemetry unit for the monitoring and control of environmental applications.

The ENVOY remote telemetry unit combines a powerful and compact data logger control unit with an industry standard internal data modem integrated into a robust package. The ENVOY is a precision device designed for low-power applications requiring flexible measurement, control and communications.

The data logger engine is capable of measuring and controlling a wide range of instruments and devices that may be located at the same location. The range of signal types supported by the ENVOY is:

  • Analogue voltage and current
  • Resistive bridges
  • Pulse output
  • Period output
  • Frequency output
  • Serial communications using SDI-12 or MODBUS protocols
  • Vibrating wire sensors

Features

  • Powerful Campbell Scientific OEM data logger with flexible BASIC-style programming language
  • Inbuilt 3G communications module with direct connection to ENVAULT, web-based SCADA
  • Internal solar regulator
  • Wide temperature range operation
  • Easy-mount panel bracket
  • Versatile I/O configuration with multi-function input and output terminals

Benefits

  • Easy installation
  • Low profile, compact design
  • Option of standard logger programs to suit any monitoring application
  • Reliable, robust solution

Analogue I/O: Dual-current or voltage inputs with typical 0.25% accuracy. Switched analogue output.
Digital I/O 2 digital inputs, 2 digital outputs, or 2 pulse-counting channels in a variety of configurations. Pulse inputs can measure period average, square waves and switch closures.
Serial Interfaces:Modbus master, SDI-12 master/slave. Custom string output functions.
Modem:Internal Quad Band HSPA (80/900/1900/2100 MHz) or GSM/GPRS/EDGE (850/900/1800/1900 MHz) with embedded TCP/IP and UDP/IP stack.
Memory:Table-based memory with up to 128 000 variables.
Instruction Set:Advanced control logic, peer-to-peer communications and mathematical functions such as ETo, vector analysis, and other post-processing instructions.
Power:0.2 mA when offline, 80 mA with modem in packet mode. Low-power flashing LED indicators.
Physical: 120 mm (L) × 85 mm (W) × 70 mm (H), 500 g weight.
Options: Direct web-based SCADA connection (ENVAULT). Local multi-drop, radio-based networks with 3G gateway.

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