Loop Powered 4-20mA Isolator Details

LOOP-POWERED ISOLATORS TXISOLOOP-1 & TXISOLOOP-2

Loop powered isolators provide signal protection by electrically isolating the input signal from the output. TxIsoLoop-1 and TxIsoLoop-2 simplify your application and avoid the undesirable ground loops by providing single and dual loop galvanic isolation. The 0/4-20 mA input is measured and an identical isolated signal is reproduced at the output. Within the loop powered isolater power is drawn from the 0(4)-20 mA input loop, thus no auxiliaty power or an external power supply is need.

FEATURES
  • Input Signal (INPUT): 0 to 20 mA; 4 to 20 mA (check minimum current for proper operation).
  • Maximum Input voltage (Vin max.): 32 Vdc.
  • Voltage Drop (Vdrop): < 3 Vdc.
  • Output Signal (OUTPUT): 0(4) to 20 mA.
  • Max. Load (RL): 1450 R.
  • Accuracy: 0.2 % FS @ 0 a 60 °C / RL= 250 R; 0.3 % FS @ -20 a 75 °C / RL= 250 R.
  • Operating current: > 0.1 mA.
  • Overload: < 40 mA; < 32 Vdc.
  • Response time: 2 ms @ RL= 250 R.
  • Isolation: 3000 Vac / 10 s; 240 Vac continuous.
  • EMC: EN 61326-1.
  • Ambient temperature range: -20 to + 75 °C.
  • Humidity: 20 to 90 % RH.
  • Protection: IP40.
  • Wire gauge for connections: 0.14 to 1.5 mm².
  • Recommended torque: 0.8 Nm.
  • Terminal blocks injected in Polyamide
NOVUS ISOLATED LOOP POWER TRANSMITTER

The TxIsoLoop-1 and TxIsoLoop-2 are 0(4)-20 mA signal isolators with one and two channels respectively. They provide signal protection by electrically isolating the input signal from the output. The 4-20 mA input is measured and an identical isolated signal is produced at the output. Its power is obtained from the 0(4)-20 mA input loop, dropping the need for an external power supply.