The model 20/6 is a
precision, loop powered 2-wire transmitter with galvanic isolation between its input and
the current-loop output signal. The 20/6 provides the necessary circuitry for
amplification, rectification and processing of AC Current or Voltage signals from various
sensors and signal sources. An optional LCD indicator is available on the 20/6 to indicate
the output in Engineering Units.The 20/6 can be easily ranged without requiring special
tools or board modifications. The model 20/6N is a special version intended for very low
current/voltage measurements and higher voltages over a wider frequency range of up to
2KHz. A TEST terminal provides a 40-200 mV signal proportional to the 4-20mA output.
Applying a DVM to the TEST terminals allows monitoring and verification of the output
without interrupting or disconnecting the current loop.