Instructions

6. VLP 2403 USB

6.1. Intended use

The laboratory power supply unit serves as a potential-free DC voltage source to operate low-voltage consumers.

It has four independent outputs. Two adjustable laboratory outputs, an adjustable USB output and a processor-

controlled USB output.

The two adjustable laboratory outputs can be operated via a mode selector switch in four different operating modes.

Individual (IND)

Each laboratory output (OUTPUT A and C) can be adjusted and used separately and independently. The device works

as two separate laboratory power supplies.

Parallel (PAR)

The two laboratory outputs (OUTPUT A and C) are internally connected in parallel. Due to the parallel connection, the

output current of the two outputs is added together. In this mode, the max. output current is 6 A. The output voltage

is 40 V/DC.

Serial (SER)

The two laboratory outputs (OUTPUT A and C) are internally connected in series. Due to the series connection, the

output voltage of the two outputs is added together. In this mode, the max. output voltage is max. 80 V/DC. The output

current is max. 3 A.

Tracking (TRCK)

In tracking mode, the output voltage of the two laboratory outputs (Output A and C) is controlled via the VOLT-Master

regulator of OUTPUT A. In this mode, the output voltage of the two outputs is always the same. The current limitation

is set at the respective output.

When switching the outputs of several power supplies in series, voltages of >70 V/DC may be generated,

which are dangerous to touch. Above this voltage, insulated lines/measuring cables must be used for safety

reasons. The devices are connected via 4 mm safety sockets.

The output data of the laboratory power supply is as follows:

Output A Output C Output B1-USB Output B2-USB

0 - 40 V/DC 0 - 40 V/DC 4.0 - 5.1 V/DC 5 V/DC, max. 2.5 A

0.01 - 3 A 0.01 - 3 A 4.0 - 6.2 V/DC 9 V/DC, max. 2.0 A

0 - 2.5 A 12 V/DC, max. 1.5 A

• The voltage and current strength can be continuously adjusted at output A, C and B1-USB. The voltage and current

values of output B1-USB are displayed with the push of a button on the display of output C.

• Output B2-USB is processor-controlled and always automatically selects the best output parameters for the termi-

nal device connected.

• Voltage and current adjustments are via a precise adjuster. The voltage regulator for output A and C is a multi-turn

potentiometer for precise settings. The values are displayed on two concise LC displays.