Energy meters are quick to install

Calo Gavazzi, submeter, sub-meter, quick fixes

Carlo Gavazzi’s EM270 energy meter can be installed five to 10 times more quickly than other energy meters and associated current transformers. A single meter can measure all electrical variables and energy of two independent 3-phase loads or six independent single-phase loads via its two RJ11 inputs.

Detachable dual-voltage terminal blocks allow up to 20 meters to be daisy chained. The RS485 port provides a daisy-chain solution to any serial bus.

Available as Modbus+2xpulse or Modbus+Modbus versions, these meters provide fast and easy data transmission to PCs and PLCs for full load control. All electrical parameters of the installation can be sent via an optional RS485 port for integration with a BMS or other standard acquisition-monitoring systems.

A choice of systems can be programmed for active and reactive energy measurement and a selection of 3-phase or single-phase loads. Options include system variables such as W, var, power factor, Hz and phase sequence. Single-phase variables include A, VLL, VLN and power factor. TRMS measurements cope with distorted sine waves and energy measurements (total KWh and reactive kVAh) for one or two 3-phase loads or up to six single-phase loads.

These meters are rated equivalent to Class 1 (kWh) according to EN 62053-21.

For more information on this story, click here: October 2014, 83
Related links:
Related articles:



modbs tv logo

Grenfell is the building industry's Piper Alpha says CIBSE

The recent passage of the Building Safety Act is a welcome recognition of the fact that making safe buildings is a highly skilled operation says the Chartered Institution of Building Services Engineers, endorsing the need for more effective regulation and a profound change in culture.

Underlying project-starts uptick indicates gradual recovery, Glenigan data suggests

  • 13% rise in detailed planning approvals against the preceding three months
  • 18% decline in main contract awards against the previous year
  • 9% increase in underlying starts during the three months to May

Glenigan has released the June 2022 edition of its Construction Review.