Products » Network Analysers » UPM307

DIN 96x96 compact LCD power meter

  • Depth 60 mm only
  • More than 100 electrical parameters displayed
  • Neutral current monitoring
  • Fully bi-directional four quadrants readings
  • High contrast graphic LCD display with a very large viewing area
  • Power and current demand calculation during userdefinable time period
  • THD and individual FFT harmonic analysis up to 31th order
  • No PTs required up to 600 (750) VAC
  • Programmable CT and PT ratios
  • Accuracy 0.5% according to IEC/EN 62053-22 for active energy

The UPM307 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
Main features
  • Single-phase and 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.
  • More than 100 electrical parameters measured (instantaneous, demand, peak values, energies, etc.).
  • THD calculation on voltage and current.
  • Optional FFT analysis up to 15th or 31st order according to the accuracy.
  • Direct measurement up to 600 (750) VAC.
  • Programmable 1A / 5A current full scale.
  • Programmable CT & PT ratios.
  • Optional temperature indication.

Front panel display
  • High contrast bright, easy to read, graphic LCD display with a very large viewing area of 79x44 mm.
  • White LED display backlighting with 100.000 hours minimum lifetime.
  • Up to four parameters displayed on the same page.

  • RS232 or RS485 optoisolated communication port.
  • MODBUS or A2 ASCII protocol.
  • Communication speed programmable up to 57600 bps.
  • Optional built-in Pro bus interface.

Inputs & outputs
  • Two digital outputs for energy pulsing or for alarm tripping.
  • On request input for Rogowski coils.

  • 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.
  • Available languages: English, German, Italian, French.
Power supply
Rated voltage: 115 VAC or 230 VAC +15% -20% on request
65à·250 VAC / 90à·250 VDC on request
19à·60 VDC on request
Consumption: 2 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: 1 / 5 ARMS programmable
Maximum overload: 10ARMS 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: ±0.2% reading from 10% to full scale
Current: ±0.4% reading from 0.25A to 6A
Energy: active: 0.5% according to IEC/EN 62053-22
reactive: class 2 according to IEC/EN 62053-23
In=5A Imax=6A Istart=2mA
Frequency: ±0.02% reading ±1 digit from 45 to 65 Hz

Display and operating controls
Display: back-lighted graphic LCD 132x64 dots
Keypad: 4 push-buttons

Communication port
Type: RS232 or RS485 on request, optoisolated
Baud rate: programmable from 300 to 57600 bps
78 kbps fixed, in case of LONBUS
up to 12 Mbps, in case of PROFIBUS
10/100 Mbps, in case of ETHERNET on LAN side

Real time clock
Type: with battery backup
Accuracy: ± 30 ppm

Digital outputs
Type: 2 optoisolated (50V-100ACA-CC)

Environmental conditions
Operating temperature: from -10 °C to +60 °C
Storage temperature: from -25 °C to +75 °C
Relative humidity: 80% max. without condensation

Mechanical characteristics
Material: plastic enclosure
Protection degree: IP54 (front panel); IP20 (terminals)
Terminals: conductors 2.5 mm2
Size / weight: 96x96x60 mm or 96x96x100 mm
500 gr max, depending on the configuration

Standards compliance
Safety: 73/23/EEC and 93/68/EEC directives, EN61010.1 safety standard
EMC: 89/366/EEC directive and following modifications 93/31/EEC and 93/68/EEC, EN50081-2, EN50082-2, IEC/EN 62053-22-23

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