Fans

The fans run at a minimum speed whenever the tester is on and the loads are disconnected. This is required to exhaust the internally-generated heat.

The fans will also run at a minimum speed when the total load on any test port is 100mA or less (‘set’ value), or 4W or less (‘pwr’ value), and the load is connected (“conn 1”).

The fans will run at full speed when any of the test ports have a total load greater than 100mA or 4W, and the load is connected. After all ports are no longer connected (e.g. reset command has been issued) the fans will run at full speed until the nominal heatsink temperature has been reached, at which point the fans return to the minimum speed.