User Manual
15
Instruction manual
PS 2000 B Triple Series
EN
Date: 11-21-2011
1. Introduction
The laboratory power supplies of the series PS 2000 B
Triple are very compact and rugged devices and incor-
porate interesting features within small dimensions. The
contactless design makes them ideally suited for operation
in schools, educational facilities, workshops or laboratories.
The series offers models with 2x 100W or 2x 160W no-
minal power.
Every model offers two seperated outputs with adjustable
output voltage and current, plus an auxiliary output which
can be adjusted in a range of 3...6V by a trimmer.
Apart from standard functions of power supplies the user
can lock pushbuttons and knobs against unintentional use
or dene thresholds for an automatic output cut-off in case
of overcurrent or overvoltage.
All models feature a built-in USB interface, which can be
used to remotely control and monitor the device by a PC.
2. Installation
2.1 Mains connection
The unit is grounded via the mains cord. Thus it must only
be operated at a mains socket with grounding contact. This
connection must not be interrupted by an extension cable
without ground conductor!
The unit is fused with a 5 x 20mm safety fuse, which is
accessible inside the mains socket in a small „drawer“. For
value see fuse imprint or device type label.
2.2 Connecting loads
The power outputs are located on the front of the device.
The outputs are not fused! In order to avoid damage to
the load application, always mind for the supply voltage
of the load.
2.2.1 Outputs 1 & 2
Main output 1 is the lowermost one and main output 2 is the
middle one of the three outputs (see „Figure 1“ on page 17).
Output 1 is controlled with the left-hand control panel and
output 2 with the right-hand one.
Voltage and current, as well as the related overcurrent
and overvoltage cut-off thresholds can be adjusted with
the rotary knobs within 0...100% nominal values (for set
values) and 0...110% nominal values (for thresholds). The
adjustment works continuously and with the step width as
given in section 4.4.
The outputs are limited to nominal voltage and current and
are permanently short-circuit-proof. They can be connec-
ted in series or parallel in order to achieve a higher output
voltage or output current.
The tracking mode (see section „4.6 Tracking mode“) can
be helpful for parallel or series operation of the outputs.
About the device
2.2.2 Output 3
This output is auxiliary and totally seperated from the other
two outputs. It can only be adjusted by the trimmer that is
accessible through the hole in the front, between the output
sockets. The voltage is adjustable in a range of approx.
3...6V. The output power is approx. 12W, resulting in ap-
prox. 2A at 6V or approx. 4A at 3V. If the limit is exceeded,
the LED will go out and the voltage will drop, depending
on the load.
Parallel connection with one or both main outputs
(1 & 2) is not allowed!