Electrocorder EC-3A

  • Three phase selectable range; 400A, 1kA, 2kA or 3kAac
  • Enables current and load problems to be highlighted for further investigation
  • Allows users to record load currents up to 3kAac, range is model dependent
  • Three current input channels (A1, A2, & A3)
  • Records Max, Min and Avg current on all 3 channels
  • Data stored in non-volatile memory
  • Recorded data is uploaded to a PC for analysis with Electrosoft
  • Kit includes Logger, Carry Case, Electrosoft software, 3 Rogowski Transducers, USB lead & 12Vdc PSU



EC-3A AC Current Data Logger – Single & Three Phase

The EC-3A AC Current Data Logger is specifically designed to monitor one, two or three current channels, allowing you to monitor the loading and energy consumption of the installation. The stored data is uploaded to a PC via the supplied USB cable.

The product is supplied with three Rogowski transducers. Four models are available. The EC-3A-FK has a range of 5 to 400A, the EC-3A-1K has a range of 10-1kA, the EC-3A-2K a range of 15-2kA and the EC-3A-3K a range of 20-3kA. Other ranges may be factory set, normally up to around 10kA per phase.

When recording the Electrocorder will store the average current over the period chosen (1 sec to 60 min), it will also record the highest (max) & lowest (min) cycle values during that period.

The current levels are stored with dates and times. With the backup battery, the Electrocorder can continue to record for 3 months. A 12Vdc PSU input is available, to allow for prolonged logging without battery power.


EC-3A Specifications
Recorded values Iavg,Imax & Imin on all 3 channels
Current Input socket types (all channels) Hard-wired through cable glands
Imax & Imin time resolution Always one cycle (50/60 Hz), independent of selected averaging period
Supplied current sensor accuracy +/-2% of range
Current measurement range (Irms) EC-3A-FK is 5 – 400A , -1K is 10 – 1kA, -2K is 15 – 2kA, -3K 20 – 3kA
Current measurement accuracy 1~2% of range, typically
Sampling frequency (all channels) 16 samples per cycle 800Hz @ 50Hz or 960Hz @ 60Hz
Data recorded Average, max & min current values during the averaging period
Memory capacity 192kB able to record 32,000 current levels per channel/phase
Memory type Non-volatile SEEPROM
Memory – averaging period & duration 1 sec to 60 mins (1sec gives 2 hrs logging, 60 min gives 300 days logging)
Real-time clock accuracy Greater than 0.001%
Current Sensor Dimensions Lead Length 2m/6’6″, Sensor Length 150mm/18″, Sensor Diameter 145mm/6″
Battery life while logging Unlimited-12Vdc PSU option & battery backup or 3 months while unpowered
Battery Type Unit contains fourteen 9V Alkaline batteries (E-Block, PP3, 1604A). External PSU
Communications Interface type USB, baud of 19,200, optically isolated to 5,2kV
Environmental (temp & sealing) -10C to +40C or +14°F to +104°F – IP65, NEMA 12/4
Dimensions & Weight Metric 260 x 180 x 190mm & 2kg Imperial/English – 10″ x 7″ x 8″ & 4lb
Standards Recording – EN50160: 1994 – CAT II


Electosoft Electrocorder Software GraphElectrosoft is supplied free with all Electrocorder loggers. It allows you to graph and export data files as well as plot energy costs and savings using voltage optimization techniques.

Overview of standard features and reports:Electrosoft Energy Graph

  • Sets-up loggers for recording
  • Plots voltage & current graphs
  • Plots energy & power graphs
  • Extrapolates CO2 usage
  • Database to track logger location
  • Alarms for late returns
  • Prints report quality graphs
  • Languages: En, Es, Fr, Hr, Cz, Fi, De, It, Po, Pt, Se
  • Database can be used across a network
  • Prints User Instructions
  • Plot multiple graphs on a single axes
  • View Voltage Optimization business case
  • Email data files
  • Voltage unbalance calculation
  • Draw Electrical Line Diagrams
  • Manage logger calibration dates
  • NEC 180 min/min calculations
  • Print previews & output to PDF, RTF, XLS, HTML etc