Fixed power analyzers

Description

CVM-C4 is a power analyser that measures, calculates and displays the main electrical parameters for single-phase and three-phase networks (with or without neutral) on its screen. Measurement is made in true rms value, by means of 3 AC voltage inputs and 3 /5 A or /1 A current inputs. Relay outputs enable local operation in the event of an alarm event being triggered. Its dimensions are 96 x 96 mm with a depth of only 41.5 mm. Current measurement is indirectly carried out by /5A or /1A transformers. It allows AC (80...270 Vac)and DC (80...270 Vdc or 18... 36 Vdc power supply systems). It features RS-485 communications enabling remote data readout or Scada or Master centralisation.

Applications

• For electrical parameter measurement in areas whose reduced dimensions require the installation of a space-saving panel analyser.
• Instantaneous value measurement of electrical parameters with communications.
• Logging of consumed or generated Active or Reactive Energy.
• The device's relay outputs allow the installation to be locally operated.
• Programmable alarms by setting relay activation time, connection delay and hysteresis.
• 5000 imp/kWh energy impulse outputs
• Energy measurement of two different sources on 2 separate meters (by digital input activation).
• Voltage and current THD% measurement to check for harmonics in the installation.

AC power supply

DC power supply

Voltage measurement circuit

Current measurement circuit

Measurement accuracy

Digital transistor outputs

Digital relay outputs

Digital inputs

Serial communication

User interface

Environmental characteristics

Mechanical characteristics

Standards