EMU C3 - V3 - A3

Electronic Measurement Units

Features

  • Three types of inputs
  • Communication protocol: modbus RTU, addresses in range 1-247, broadcast address 0
  • Supported rates: 1200, 2400, 4800, 9600, 19200, 38400, 57600 and 115200 bps
  • Data formats available: 8 bits with No Parity, Even Parity or Odd Parity
  • Factory defaults: 9600bps, 1 start, 8 data, parity none, Modbus address 1
  • Screw terminals connection
  • Power requirements: 10-28V DC / consumption less than 1W
  • Measurement isolation 3000 V DC
  • Plastic enclosure (35 x 86 x 58 mm), DIN rail 35mm mountable

Description

DECODE EMU devices represent series of measuring devices for measurement of AC and DC voltages and currents with integrated RS-485 Modbus connection.

There are three different device options supported where the third one, with analogue input unit, offer several subtypes.

  • EMU V3 - for AC voltages measurement 3 x 230V AC
  • EMU C3 - for AC currents measurement (current transformers) 3 x CT 5A AC
  • EMU A3-TTT - 3 x analogue input measurement (TTT designates input type, example: device EMU A3001 features first two inputs 0/4-20mA where the third one features PT100 input)

Wiring Diagram

Jumpers KS1 and KS2 are to be placed only if RS-485 line termination is required. For short distances the termination is not needed. Distances longer than 100m, as well as presence of notable disturbances, require line termination at one of slave devices, specifically the one positioned at the end of line.

TECHNICAL SPECIFICATION

Decode EMU measuring devicesEMU V3EMU C3EMU A3 - TTT
Type T=0Type T=1Type T=2Type T=3Type T=4
Measured parametersL1, L2, L3,
L12, L23,
L31,
frequency
CT1,
CT2,
CT3
0-20mA,
4-20mA
input
resistance
40 Ω
PT 100PT 1000-5V DC0-10V
DC
Measurement range0-250V AC
rms
0-5A AC
rms
0-25mA
DC
from -50
⁰C to
+150 ⁰C
from -50 ⁰C to +150 C0-5V DC0-10V DC
Resolution10mV rms1mA rms0.01mA0.1 ⁰C0.1 ⁰C1mV1mV
Measurement typeTrue RMS-----

ORDERING INFORMATION

ModelSKUDescriptionPrice 
EMU C310272AC voltages measurement 3 x 230V AC
85 EUR
EMU V310271 AC currents measurement (current transformers) 3 x CT 5A AC
85 EUR
EMU A3102733 x analogue input measurement (TTT designates input type, example: device EMU A3001 features first two inputs 0/4-20mA where the third one features PT100 input)
85 EUR

Product Documents