AC/DC TRMS 50 A LOOP-POWERED CURRENT TRANSFORMER
The QI-50-I is an AC/DC current transformer which is galvanically isolated from the measuring circuit. The function and appearance of this device are very similar to a standard active CT, however it is able to measure the DC component and AC TRMS.
The transducer is loop-powered with current 4-20 mA so needs no direct power supply. It is the first loop-powered Hall effect transformer with 0.5% accuracy on the market.
AC/DC loop-powered current transformer TRMS, 0…50 A bipolar, analogue output 4…20 mA on loop, range set by dip-switch, ready for both vertical and horizontal DIN rail mounting.
TECHNICAL FEATURES
POWER SUPPLY | Passive loop, 11…30 VDC, protections against polarity reversal and overtemperature. |
ABSORPTION | Less than 3.5 mA |
DEGREE OF PROTECTION | IP20 |
ACCURACY CLASS | 0.5% FS |
RESOLUTION | 12 bit |
TEMPERATURE COEFFICIENT | < 200 ppm/°C |
RESPONSE TIME | 1000 ms |
HYSTERESIS | 0.15% FS |
WORKING TEMPERATURE | -15…+65°C |
TYPE OF MEASUREMENT | RMS (monopolar) or DC |
RANGE | ±50 Arms or ±25 Arms set by dip-switch |
CREST FACTOR | 1.8 |
BAND WIDTH | DC or 20…2000 Hz |
ISOLATION | 3 kV on bare wire |
OVERLOAD | 2000 A pulse, 300 A continuous |
OUTPUT | 4…20 mA |