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.
SPECIFICATIONS
AC power supply
Nominal voltage
80 … 270 Vac
Frequency
50/60 Hz
Consumption
6 … 18 VA
Installation category
CAT III 300 V
DC power supply
Nominal voltage
80…270 Vdc
Consumption
1.5 … 1.8 W
Installation category
CAT III 300 V
Voltage measurement circuit
Nominal voltage
100…277 V~ Ph-N (± 8%)
Frequency measuring range
45…65 Hz
Input impedance
> 1.7 MΩ
Minimum measurement voltage (Vstart)
10 V
Maximum permanent measurement voltage
1.2 Un continuous, 2 Un instantaneous (1 min)
Consumption
< 0.2 VA (por fase)
Installation category
CAT III 300 V
Sampling frequency
45…65 Hz
Current measurement circuit
Nominal current (In)
1 A / 5 A ~
Allowable overload
1.2 In continuous, 10 In instantaneous(5s)
Consumption
< 0.2 VA (por fase)
Installation category
CAT III 300 V
Measurement accuracy
Phase voltage measurement
0.2 %
Phase current measurement
0.2 %
Frequency measurement
0.5 %
Active power measurement (kW)
0.5 %
Reactive power measurement (kvar)
0.5 %
Active energy measurement (kWh)
0.5 %
Reactive energy measurement (kvarh)
0.5 %
Digital transistor outputs
Type
Passive impulse
Maximum voltage
27 Vcc
Maximum current
27 mA
Maximum frequency
10 Hz
Pulse width
Minimum pulse width: 80mA
Digital relay outputs
Type
Relay
Quantity
2
Maximum open contact voltage
277 V ~ / 30 Vdc
Maximum current
5 A ~
Resistive load (max.)
250 Vca / 5 Aca, 30 Vcc / 5 Acc
Electrical life
(250 V ~ / 5 A) 1 x 105
Maximum switching capacity
1385 VA / 150 W
Digital inputs
Quantity
2
Type
Potential-free contact
Input/output insulation
3,75 kV RMS
Maximum short-circuit current
4 mA
Maximum open circuit voltage
30 V
Serial communication
Technology / Type
RS-485
User interface
Display type
LCD
Keyboard
3 keys
Environmental characteristics
Working temperature
-10 … +60 ºC
Storage temperature
-20 … +70 ºC
Relative humidity (without condensation)
5 … 95%
Protection class
Front: IP54, Rear: IP20
Mechanical characteristics
Envelope
Polycarbonate + ABS
Weight (kg)
0,268
Size (mm) width x height x depth
96 x 96 x 41.5 (mm)
Standards
Standards
IEC 61010-1, IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6, IEC 61000-4-8, IEC 61000-4-11
Electrical safety, Installation category
CAT III 300 V
Electrical safety, Contamination level/class
Pollution resistance 2
Electrical safety, Maximum height (m)
2000
DIMENSIONS
CONNECTIONS
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