Portable reference standard, power quality analyzer, data logger, comparator and oscillograph




The multi-functional Energomonitor 3.3T1-C can be utilized as a reference meter, a CT/VT test comparator, circuit inspections, accuracy and calibration testing, and for amplitude and peak AC voltage measurements.

  • As a reference meter: on-site performance, accuracy and calibration tests of single / and three-phase electric energy meters (active or reactive energy); control of correct meter wiring (without breaking into the circuits)
  • As a CT/VT test comparator: on-site performance, accuracy and calibration tests of current and voltage instrument transformers
  • Inspection of secondary circuits of instrument transformers (load power measurements), e.g. within automatic metering and billing systems
  • On-site performance, accuracy and calibration testing of instrument transducers of current, voltage, active and reactive power
  • Amplitude and peak AC voltage measurements (up to 500 Hz) across one/three channels and one differential channel; accuracy testing and calibration of peak voltmeters

Basic specifications:

  • Voltage measurement range: 0.6...360 V
  • Nominal current: In =0.1, 1, 0.5, 5, 10, 50, 100, 300, 500, 1000, 3000 А
  • Operating temperature: 20...50°C
  • Weight: 2 kg


Components and accessories:

SM 10-3000
A switch module for turns ratio calculation of current transformers
A rechargeable power supply for the Energomonitor-3.3T1 reference meter
Pulse Former adjusts pulses of the meter with optical pulse output to the input of the reference meter
Scanning Head
Scanning heads for testing induction meters or meters with optical output
An accessory for measurement of transformer-under-test burden
AC Current Clamps
Scaling current-to-voltage converters for current measurements up to 10, 100, 1000A
A block of instrument current transformers for contact AC current measurements
A unit designed for calibration of current transformers