QEED QE-CURRENT-485: UNIVERSAL CURRENT / VOLTAGE CONVERTER AC/DC Current / Voltage Analyzer

INPUT - CURRENT SENSOR

One of:

● ROGOWSKI probes.

● Current transformer with secondary 1A / 5A.

● Current / Voltage transformer with secondary ±10 Vpk or ± 1 Vpk.

● Current transformer with secondary 333 mV.

● Current transducer with secondary 100 mA AC / DC.

● HALL sensor, with his power supply (+/-15 Vdc).

INPUT - TEMPERATURE

● PT100 2-3 wires or NTC (10 k/ 100 kohm / custom) not isolated.

IMPORTANT NOTE:

● IT REQUIRES ISOLATED PRIMARY

CURRENT / VOLTAGE SENSOR;

● DURATION OF FLASH FOR DATA STORAGE:

3,5 YEARS.

AVAILABLE VERSION

QE-CURRENT-485: Current / Voltage converter, Analog Output and

RS485 Modbus serial; Measures RMS, AC and DC , average

minimum and maximum measurements, frequency and Crest Factor.

The temperature or the resistance measurement.

QE-CURRENT-485-H: Current / Voltage converter and ANALYZER,

analog and serial output RS485 Modbus. With all the measurements

of the basic version and harmonic analysis up to the 63rd, THD, I

peak and measurement of internal temperature of the module (to

understand the temperature of the panel).

POWER SUPPLY 10…30 Vdc, Protection

against reverse polarity and over-temperature

ABSORPTION 2,5 VA max

PROTECTION INDEX IP 20

AVAILABLE MEASUREMENTS

Irms Irms MAX Irms min Irms mean

Ah of Irms

Idc Idc MAX Idc min Idc mean

Ah of Idc

Iac Iac MAX Iac min Iac mean

Ah of Iac

Frequency Crestfactor

I peak * THD *

Temperature (PT100 / NTC) Internal Temp *Resistance

Of PT100/NTCprobe

Harmonic analysis up to the 63rd harmonic *

The measurements into the table are the same for

the VOLTAGE.

Available on version QE-CURRENT-485-H

SAMPLING RATE 6400 Hz @ 50 Hz

ACCURACY OF ANALOG OUTPUT < 0,1% F.S.

BAUD RATE 1200...115200 Baud (standard 9600)

TEMPERATURE COEFFICIENT < 100 ppm/°C

WORKING TEMPERATURE -10°C... +60°C

STORAGE TEMPERATURE -40°C... +85°C

HUMIDITY 10...90% not condensing

ALTITUDE Up to 2000 m s.l.m.

MOUNTING Din rail mounting, designed for

mounting on bus (connector not included)

CONNECTIONS n°2 removable terminals 10 pole

- 3,5 mm

CE STANDARDS EN61000-6-3; EN61000-4-2;

EN61000-4-3; EN61000-4-4; EN61000-4-5 ; EN61000-

4-6; EN61010-1

DIMENSIONS 93 x 17,7 x 68,3 mm

(terminal excluded)

WEIGHT 55 g

PLASTIC CASE PBT, grey

DIP-SWITCH 2 pole (Baudrate and address)

LED N°5: Power (Green), Comm (Yellow), TX e RX

(Red), Dout (Green)

CONFIGURATION With software FACILE

QE-CURRENT-485 or via RS485 Modbus.

Comunication to free interface program for:

- configuration of all the available parameters;

- possibility of firmware upgrade (if available).

ACCURACY QE-CURRENT-485

20/100 mA CHANNEL

CREST FACTOR: 4 (RELATIVE OF 100 mA)

RANGE: 1 mA < I < 5 mA MAX ERROR: 1 %

RANGE: 5 mA < I < 100 mA MAX ERROR: 0,5 %

TEMPERATURE COEFFICIENT: < 100 ppm/°C

BANDWIDTH (-3dB) > 2 KHz

±1 Vpk CHANNEL

RANGE: 10 mV < V < 50 mV MAX ERROR: 1 %

RANGE: 50 mV < V < 1 V MAX ERROR: 0,5 %

TEMPERATURE COEFFICIENT: < 100 ppm/°C

BANDWIDTH (-3dB) > 2 KHz

±10 Vpk CHANNEL

RANGE: 100 mV < V < 500 mV MAX ERROR: 1 %

RANGE: 500 mV < V < 10 V MAX ERROR: 0,5 %

TEMPERATURE COEFFICIENT: < 100 ppm/°C

BANDWIDTH (-3dB) > 800 Hz

CHANNEL OF TEMPERATURE

0CHANNEL

RANGE: -200 °C .. +600 °C

ERROR: ± 1.2 °C on reading

T E M P E R A T U R E

COEFFICIENT:

< 100 ppm/°C

NTC

CHANNEL

RANGE: 200 Ω .. 20 KΩ 20 KΩ .. 300 KΩ

ERROR: ± 1.2 °C on reading ± 1.6 °C on reading

T E M P E R A T U R E

COEFFICIENT:

< 100 ppm/°C

2 03 2016

CONDITION OF TEST: sinusoidal input 50-60 Hz, integrator disabled, temperature 25 °C.