DIN96x96 LED power meter

UPM310 LED Power Meter


  • DIN 96 cutout for new or retrofit applications
  • Fully bi-directional four quadrants readings
  • Neutral current monitoring
  • Up to 2 plug-in option boards
  • Large and bright LED alphanumeric display
  • Power and current demand calculation during user-definable time period
  • THD and individual FFT harmonic analysis up to 50th order
  • On-board memory up to 2 MB
  • Programmable Min/Avg/Max & energy data logging
  • Event and alarm recording

The UPM310 with option "RGW" can be combined to the MFC150 Rogowski coil.


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


  • DIN 96x96 compact instrument
  • Transducer without display

Available Configurations

  • Three-phase 3-wire or 4-wire unbalanced load operation.
  • True rms metering provides accurate measurement even for distorted waveform.
  • Fully bi-directional, four-quadrant readings.
  • Volts, Amps, Power, PF, Frequency, Energy, Demand and more.
  • Individual & total harmonic distortion for voltage and current up to the 31st order.
  • Direct measurement up to 600 (750) VAC.
  • Programmable 1A / 5A current full scale.

  • Two slots for optional AO plug-in boards (up to no. 4 analog outputs 0-20 or 4-20 mA).
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 eight selectable parameters.
  • Total and daily energy consumption recording. The individual consumptions are stored more than 300 days.
  • Both RS232 and RS485 selectable by dip-switches.
  • Selectable MODBUS or A2 ASCII protocol.
  • Communication speed programmable up to 57600 bps
  • Optional Pro bus interface.

Inputs & outputs
  • Two digital outputs for energy pulsing or for alarm tripping.
  • Up to 4 analog outputs 0-20 or 4-20 mA.
  • Real time waveform downloading via communication port. This function allows to represent graphically on the PC the three voltages and the three currents with 128 samples per cycle.
  • Real time clock with battery backup.

Power supply

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

Voltage inputs

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

Current inputs

Rated current (Ib): 1 / 5 ARMS programmable
Min / max measurable current: 20 mA / 7 ARMS
Maximum overload: 10 ARMS continuous - 100 ARMS for 1 sec.
Input impedance: 0,02 Ohm approximately
Burden: max 0,5 VA per phase
Insulation voltage: 150 VAC max between phases
Rogowski input: 200à·49995 A on request

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: high brightness 13,8 mm LED display, three lines, 4 alphanumeric digits
Keypad: 4 push-buttons

Data Memory

Type: on-board non-volatile FLASH, 128 kB or 2 MB

Communication port

Type: 1 selectable RS232 or RS485, optoisolated 1 available for plug-in comm. boards
Baud rate: programmable from 300 to 57600 bps

Real Time Clock

Type: with battery backup
Accuracy: ± 30 ppm

Digital outputs

Type: 2 isolated optomos (50V - 300mACA-CC)

Environmental conditions

Operating temperature: from -15 °C to +60 °C
Storage temperature: from -30 °C to +75 °C
Relative humidity: 80% max. without condensation

Mechanical characteristics

Material: metal enclosure
Protection degree: IP54 (front panel); IP20 (terminals)
Terminals: standard pluggable terminals (EU) on request barrier terminal strips (USA)
Size / weight: DIN version: 96 x 96 x 130 (mm) / 750 gr
transducer version: 90 x 90 x 130 (mm) / 800 gr

Standard compliance

Safety: 73/23/EEC, 93/68/EEC directives, EN61010-1
EMC: 89/366/EEC directive and following modifications 93/31/EEC and 93/68/EEC, EN50081-2, EN50082-2, EN61326/A1