Connections for testing
Before making the connections, prepare the wires as described in the
following table.
Usage
Specifications
Front panel binding posts
AWG 20 to AWG 12
Rear panel output terminals
AWG 20 to AWG 12
The wire must be heavy enough not to overheat while carrying
the short-circuit output current of the unit. Please meet the
wiring requirements described above.
Two-wire connection
Two-wire connections are used for basic operation when maximum
accuracy is not required. Keep the wire as short as possible to reduce
lead inductance and noise pickup. If you want to compensate for the
voltage drop in the load leads, use a four-wire sense connection.
When making two-wire connections with the 2281S, you must short
both Output Hi and Sense Hi and Output Lo and Sense Lo with the
shorting jumpers. If you do not do this, the display will show incorrect
voltage output readings.
