MT 418 - Programmable AC current transducer

Properties

Measurements of rms current, frequency, distortion factor and maximum values
Accuracy class 0.5 (EN 60688)
Input frequency ranges: 50/60 Hz, 400 Hz
RS232/RS485 interface (optional) with up to 115200 bit/s and USB 2.0 interface
MODBUS protocol
Auxiliary power supply via internal transformer or universal AC/DC module
Automatic range selection (max. 12 A)
Housing for DIN rail mounting
User-friendly MiQen software

Description

The MT418 is intended for measuring and monitoring single-phase currents and frequencies. The current input is electrically isolated from the system by the use of a current transformer. Fast sampling of current signals determines the RMS value and enables the detection of fast transients. A built-in microcontroller system calculates the measured values (current, frequency, THD, maximum value) from the measured signals. The measured values can then be converted into a load-independent DC current or voltage, which are proportional to the input variable and can be used for control purposes with analog and/or digital devices.

Technical Data

Input

Current measurement

Nominal frequency range

50/60, 400 Hz

Nominal values I_N

1, 5, 10 A

Nominal current I_N

5 A

Max. value

12,5 A sinusoidal

Max. permissible (thermal) limit value

15 A permanent
20 × I_N; 5 × 1s

Consumption

< I² × 0.01Ohm per phase

Frequenzmessung

Frequency measuring range
(only for frequency measurements)

16 ... 400 Hz

Output

The analogue output is fully programmable and can be set to one of the 6 ranges (4 current and 2 voltage ranges) without opening the unit.

Programmable DC current output

Programmable DC current output:
Output ranges 0 ... 100%

0 ... 1 mA

Range 1

0 ... 5 mA

Range 2

0 ... 10 mA

Range 3

0/4 ... 20 mA

Bereich 4

Other ranges

via MiQen software

Max. voltage level

10 V

Maximum load resistance

R_{B max} =10 V / I_outN

Programmable DC voltage output

Output ranges 0 ... 100%

0 ... 1 V

Range 1

0 ... 10 V

Range 2

Other ranges

via MiQen software

Max. load current

20 mA

Min. load resistance

R_Bmin= U_outN / 10 mA

Downloads

Related Products

MT 440 - Multifunction Transducer

MT 406 - AC Voltage Transducer

MT 408 - AC Current Transducer

MT 416 - Programmable AC voltage transducer