Specifications

DC Energy Analyzer VMU-E, VMU-X
This energy analyzer is a modular combination of two
modules VMU-E and VNU-X for DC V, A, W and kWh
metering.
VMU-E is provided with a 6 digit LCD display and one front
push-button for easy parameters programming.
VMU-X is the power supply unit which provides to the
VMU-E unit, according to the module, either a RS485 serial
communication port or a digital output. The output works
as a pulse retransmission output proportional to the energy
being measured or an alarm output.
The main advantages
• Compact size: 1+1 DIN module.
• Measurement of direct current up to 20A; or by means of an
external shunt up to 1000A.
• Universal AC/DC power supply.
• Easy to be connected to a PLC or local alarm by means of
digital output.
• Quick data transmission to remote acquisition system by
means of the RS485 port.
• Local variable control by means of the alarm digital output.
VMU-E and VMU-X
Hardware Functions
In-Out
Performances
The best to suit your needs!
Comm
39
Housing (H x W x D)
Display type Var. on display
Instantaneous variables
Energy variable
Accuracy
Temp. drift Sampling time
System type
Voltage inputs
Current inputs
Shunt input
Digital inputs
Measurements:
Harmonic distortion
Outputs: Pulse
Alarm
Analogue
Serial
Digital filter
Other characteristics
Approvals
Power supply
Protection degree
90x18x67mm (1-DIN module)
LCD, h: 7mm YES
4 DGT
6 DGTs
A-V: ±0.5 RDG
Class 1 (kWh)
≤200ppm/°C ≤150s
1-phase
0 to 400VDC
0 to 20ADC (direct)
0 to 120mVDC (1000A with external shunt)
N.A.
V, A, W, kWh
N.A.
1 (opto-mosfet)
1 (opto-mosfet)
N.A.
RS 485
N.A.
Scaling of external shunt
CE
38 to 265 VAC/DC (VMU-X)
IP40