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CMR
Power Monitoring Display

Rev : 02 | Rev date : 04 Feb 2022

The CMR power meter provides a real-time local display and a simple user interface for RF power monitoring applications. The meter interfaces to one or two RFS model EBD dual power sensors via a Modbus/RS485 serial interface.

When connected with one dual sensor, the display shows forward and reflected power at one monitoring point, as well as VSWR and return loss. When connected with two dual sensors, forward and reflected power, VSWR and return loss of two monitoring points (eg. upper and lower antenna stacks) can be displayed.

The CMR power meter includes a Programmable Logic Controller (PLC), which provides two high/low threshold alarm contacts for return loss and forward power respectively at each monitoring point. A second Modbus/RS485 serial port on the PLC can be used to interface the CMR to an existing Network Management System if required.

A simple user interface provides menus that allow for changes to the display (numeric or bar graph), and for the set-up of directional coupler levels, full-scale deflection and alarm thresholds.

 

FEATURES / BENEFITS

  • Local display of forward and reflected power, return loss and VSWR
  • Large, bright, high-resolution touchscreen display
  • One screen displays one or two monitoring points
  • Measurements displayed in numeric and bar-graph formats
  • Configurable high/low power alarm thresholds
  • Operates from 100 to 240 V AC supply
     


Technical features

Electrical Specifications

Display7 inch TFT LCD
Power Supply100 to 240 VAC, 50 to 60 Hz

Environmental Specifications

Operating Temperature °C(°F)0 to 50 (32 to 122 )
Storage Temperature °C (°F)-20 to 60 (-4 to 140 )