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47113964.2.023
РЭ
3
This operation manual contains information for using the AET Multifunction Measuring Transducer
(hereinafter designated “transducer”) and information on packing, transportation and storage.
Read this manual before operating.
There are following abbreviations in this manual:
RMS – root-mean-square;
ROM – read-only memory
RTC – real-time clock
1 Description and Operation
1.1 General specification
Transducer is a device for measuring a.c. parameters of three-phase four-wire system and of three-
phase three-wire system and converting it to output code by two RS-485 interfaces.
Transducer corresponds to specification ТУ 4221-013
47113964
2010.
Transducer is a hardware SSI product of the second order according to ГОСТ P 52931-2008.
Power Supply: 220 V (+10%; –15%); 50Hz.
Transducer is a hardware product without galvanic link between input circuits and output circuits.
Transducer is mounted on the rails ТН-35 IEC 60715-2003 or immediately on the panel.
Guard level IP20 (ГОСТ 14254-96, IEC 529-89).
Climatic category УХЛ3.1 (ГОСТ 15150-69).
Operating Environment: Group C4 (ГОСТ P 52931-2008):
- Ambient Air Temperature ...................................................... - 40 to 55 °С;
- Relative Humidity at 35
°
C .................................................... up to 95 %;
- Atmospheric pressure ............................................................. 84-106 kPа (630-800 mm Hg).
Transducers are stable to the Vibration and concerned to N1 group according to ГОСТ P 52931-2008.
Transducers are stable to the Atmospheric pressure and concerned to P1 group according to ГОСТ P
52931-2008.
Reference conditions relative to each of the influence quantities are given in table 1.
Table 1 – Reference conditions of the influence quantities and tolerances or testing purposes
Influence quantity
Reference conditions (reference
range)
Tolerances permitted for testing
purposes applicable to a single ref-
erence value
Ambient Air Temperature
20 °C
±
5 °C
Relative Humidity
30 … 80 %
Atmospheric pressure
84 … 106 kPa
(630 … 800 m Hg)
Location
Soever
Magnetic field of external origin
Earth’s magnetic field
Supply Voltage
220 V
±
4.4 V
Waveform of the voltage supply
Sinusoidal
Distortion factor shall not exceed 5%
Frequency of the input signal
50 Hz
±
0.5 Hz
Waveform of the input signal
Sinusoidal
Distortion factor shall not exceed 5%
Input voltage
Nominal value
±
2%
Input voltages unbalance factor
shall not exceed 2 %