Voltage to current loop

MAO-2

Features:

·         Small Size

·         Low Cost

·         Output unaffected by changes in transmission line resistance

·         50-500 Ohm Load Range

·         Short Circuit proof output

Applications:

·         Long distance analog data transmission

·         General Purpose signal conditioning

Adjustments

MAO-2 CALIBRATION INSTRUCTIONS

1. Connect the power supply ,input voltage, and load (50-500 ohm)

as shown in the installation diagram.

2. Connect a current meter in series with the load.

3. With 0 volts input, adjust offset pot P2 until the current

output is 4mA.

4. Apply a 10 volt input and adjust the span pot P1 until the

current output is 20mA.

The out put current will now vary 4 to 20 mA with a 0-10 volts

input. The current is independent of the load with in the

specified range.