The EC-7VAR Energy Logger is designed to Monitor and record energy usage on a 3-phase supply (or 3off Single-phase). The EC-7VAR also records the Power Factor to aid with the calculation of Real (W), Reactive Power (VAR) and apparent (VA) Power.
It is also widely used for:
Monitoring Voltage and Current Fluctuations for fault diagnosis and reporting to the power provider
Investigating the required size of Backup Generators and UPS systems, plus subsequent monitoring
Voltage Optimisation - This can help reduce Energy Costs significantly ! Many pieces of electrical equipment are capable of working at lower mains voltages, so by using Voltage optimisation systems to reduce the mains to lower levels where possible, savings can be made in energy usage. The first step in this process is to monitor the incoming voltage levels, for which the EC-7VAR is ideal.
Power Factor (known as PF or Cos φ) is recorded for the voltage channel L1 and the current channel A1, this is then used to calculate the real (Watts), reactive (VARs) and apparent (VA) power for all 3 phases within our Electorosoft software. PF measurement also allows users to determine if Power Factor Correction is needed for the site.
Easy Set-up using the included Windows based software. The stored data can be uploaded to the supplied Electrosoft software for further storage and analysis.
Two input ranges are available on the unit (4-400A or 20A to 3kA) with 2 casing designs (standard IP43 or IP65).
NOTE: Optional IP65 Casing is available under the "Recommendations Products" area below.
3x Current (flexible Rogowski coils) - True RMS Average, Minimum and Maximum
3x Voltage (leads with insulated crocodile clip) - True RMS Average, Minimum and Maximum. Also requires Neutral connection. Non-isolated.
1x Power Factor
Frequency: 50Hz or 60Hz models
Current: 400A or 3kA (manually selected)
Voltage: 600V Phase-Phase, 350V Phase-Neutral
Power Factor: 0.3 lead to 0.3 lag
Dimensions & Weight:
Logger: Metric - 260x180x190mm & 2kg, Imperial/English - 10" x 7" x 8" & 4lb
Rogowski Coil fits around 140mm cables
Rogowski Coil dimensions: Lead Length 2m/6’6” Sensor Length 450mm/18” Sensor Diameter 145mm/6”
Voltage Lead dimensions: Lead Length 2m/6’6”
Sealing: Sealed to IP43 or IP65
Operating Range: -10C to +40C or +14°F to +104°F
Case Material: ABS
CAT Rating: 1000V CAT III, 600V CAT IV
Recording: EN50160: 1994
Current: ±2% of range, typically (±5% of range outside 10%-90% of selected range)
Current Reading Floor: 4A on 400A range, 20A on 3kA range
Voltage: ±1% of reading, ±1 Volt. (10 bit) within 100Vac-450Vrms (ph–ph); else ±3%. (50/60Hz ±2%)
Voltage Reading Floor: 5Vac
Power Factor: Accurate to ~3% between lead 0.5 and 0.5 lag; ~6% between 0.5 and 0.3 lead or lag
Time Clock: Greater than 0.001%
Batteries are primary cells, 6 x 1.5V AA-Cell Alkaline (IEC-LR6, ANSI/NEDA-15A).
Approx. 1 week logging (full batteries)
Logging life is unlimited with live voltage input connected.
Recording Period: 2 sec to 60 mins
Recording Duration: 4 hours to 301 days
Recording Method: Constant Sampling, 16 samples per cycle
Sampling Frequency: 800Hz at 50Hz or 960Hz at 60Hz
Sampling Resolution: 10-bit
Memory Type: SEEPROM, Non-volatile
Memory Capacity: 384kB (32,000 levels per channel)
Emissions EN55022:1994B, (EN50081-1:1992).
Immunity EN50082-2:1995, following the provisions of EMC directive 89/336/EEC.
Recording std EN50160:1994.LVD 72/23/EEC with respect to EN60065. (IEC-61010).
All models certified (light industrial, 3V/m).
Harmonised Code: 9030.39.01