DIN 144x144 LCD power meter

UPM3080 LCD Power Meter


  • Fully bi-directional four quadrant readings
  • Neutral current Measurement
  • Large graphic LCD display with excellent visibility
  • Up to two plug-in options
  • Infrared communication port
  • THD even, odd and individual FFT harmonic analysis up to 50th order
  • Power and current demand calculation
  • On-board memory up to 2 MB
  • Programmable Min/Avg/Max and energy data logging
  • Event and alarm recording, waveform capture, waveform display, phasor diagrams, hystorical trending, time-of-use and more...


  • Switchboards, gensets, motor control centers, etc.
  • Power monitoring & control systems
  • Individual machine load monitoring
  • Power demand analysis and management
  • Harmonics monitoring
  • Remote metering and cost allocation.

Available Configurations

  • Single-phase and three-phase 3-wire or 4-wire unbalanced load operation.
  • Direct measurement up to 600 (750) VAC.
  • Programmable 1A / 5A current full scale.
  • True rms metering provides accurate measurement even for distorted waveform.
  • Fully bidirectional, four-quadrant readings, 8 energy counters available.
  • Total harmonic distortion for voltage and current up to the 31st order.
On-board memory
  • 128 kB non-volatile memory for data storage.
  • Programmable start/stop time of recordings.
  • Wraparound or Fill (FIFO/Stack) selectable recording mode.
  • Min/Avg/Max logging every 1, 5, 10, 15, 30, 60 minutes, programmable up to 8 selectable parameters.
  • Total and daily energy consumption recording. The consumption of more than 300 days is recorded.
  • In case of more than one electricity supplier, it is possible to start from the recorded demand values instead of the daily ones. Each value is recorded with date and time and can be exported for example, in .xls format. This allows to create a exible map that considers the different electricity suppliers. The DMD value is the AVG value (see programmable recordings).
  • Two slots for optional AO plug-in boards (up to no. 2 analog outputs 0-20 or 4-20 mA).
  • The excellent graphical display performs clear graphical representations allowing an immediate comprehension of the measured parameters.
  • Both RS232 and RS485 selectable by dip-switches.
  • Selectable MODBUS or A2 ASCII protocol.
  • Communication speed programmable up to 57600 bps

Inputs & outputs
  • Two digital outputs for energy pulsing or for alarm tripping.
  • Up to 2 analog outputs 0-20 or 4-20 mA.
  • Real time clock with battery backup.
  • Calculation of capacitor bank value for PF compensation.
  • No. 1 programmable user page with 6 parameters selected among measured values.
  • Five alphanumeric character password to avoid unauthorized setup access.
  • Downloadable firmware via serial port.

Power supply

Rated voltage: 65...250 VAC / 90...250 VDC on request 19...60 VDC on request
Consumption: 5 VA max

Voltage inputs

Maximum measurable voltage: 600 (750) VAC max L-L
Input impedance: ›1.3 MOhm
Burden: 0.15 VA max per phase
Frequency: 45 - 65 Hz

Current inputs

Rated current (Ib): 1 / 5 programmable
Min / max measurable current: 20 mA / 7 ARMS
Maximum overload: 10A continuous - 100A for 1 sec.
Input impedance: 0,02 Ohm approximately
Burden: 0,5 VA per phase
Insulation voltage: 150 VAC max between phases

Typical accuracy

Voltage: ±0.1% reading ±0.03% full scale
Current: ±0.1% reading ±0.05% full scale
Active power: ±0.5% reading ±0.1% full scale (PF=1)
Power factor: 1% reading (0.5 inductive - 0.8 capacitive)
Active energy: 1% reading (0.5 inductive - 0.8 capacitive)
Frequency: ±0.05% reading ±2 digits from 45 to 65 Hz

Display and operating controls

Display: backlighted graphic LCD display, 160 x 144 dots
Keypad: 5 push-buttons

Data Memory

Type: on-board non-volatile FLASH, 128 kB

Communication port

Type: 1 selectable RS232 or RS485, optoisolated
Baud rate: programmable from 300 to 57600 bps
Protocols: A2 ASCII, MODBUS

Real Time Clock

Type: with battery backup
Accuracy: ± 30 ppm

Digital outputs

Type: 2 optoisolated (50V - 300 mADC)

Environmental conditions

Operating temperature: from -15 °C to +60 °C
Storage temperature: from -25 °C to +75 °C
Relative humidity: 80% max. without condensation

Mechanical characteristics

Terminals: EU standard pluggable terminals
Size / weight: 144x144x95 mm / 750 g

Standard compliance

Safety: 73/23/EEC and 93/68/EEC directives, EN 61010.1 safety standard
EMC: 89/366/EEC directive and following modifications 93/31/EEC and 93/68/EEC, EN50081-2, EN50082-2, EN61326/A1