VariTrans A 20300

The VariTrans A 20300 can also be used when a particularly high output load is required. Standard signal sources can often drive a load of up to 500 ohms, i.e., supply 10 V at 20 mA. Sometimes certain devices – e.g., actuators – require a higher voltage; i.e., their input resistance is higher. The signal doubler can also solve this problem:

Both output signals are not used separately in this case, but are connected in series to form one signal. This doubles the available voltage, making it possible to drive a higher load of up to 1000 ohms (20 V at 20 mA). Of course, the signal-defining 0/4 to 20 mA current is retained in the series configuration.