Datasheet

3-348-843-03
7/3.18
GMC-I Messtechnik GmbH
SSP-KONSTANTER, Series SSP 120 / 240 / 320
Laboratory Power Supplies
Description
The SSP KONSTANTER series (single output system power 
supplies) includes programmable, voltage and current regulated
DC power supplies with 120 W, 240 W or 320 W of output power.
They include a P-controlled operating system and are furnished
with an addressable RS 232C serial interface as

standard equipment. Up to 30 instruments can thus be controlled
from a single PC port.
An IEEE 488 interface can be optionally integrated. Both PC 
interfaces allow for complete control of all instrument functions,
and support the querying of measurement values, set-up

parameters and instrument conditions.
Manual adjustment of voltage and current is accomplished with
two rotary pulse generators with adjustable resolution.
Two 4-place multifunction displays allow for the accurate read-out
of measurement values (V, A, W), as well as menu-driven

parameter adjustments for a multitude of additional functions
such as setting range limitation, overvoltage protection, delayed
overcurrent shut-down or programmable digital signal inputs and
outputs.
Up to 243 settings can be stored to memory and can be recalled
either individually or sequentially, e.g. for the generation of specific
current or voltage sequences. The advanced circuit technology is
capable of essentially load-independent response times of less
than 1 ms.
The output parameters can thus be superimposed with AC 
signals with values up into the kHz range with the analog interface
which is furnished as standard equipment.
The measuring function is equipped with an extreme value 
memory, limit monitoring signals and a hold function.
Applications
Electrical and electronic devices may be subjected to substantial
fluctuations from the power supply depending upon where they
are used, as well as ambient conditions. This is especially true
where stabilization and back-up systems are not used.
A typical example is represented by automotive electrical systems
during operation of the starter motor.
It is thus imperative that R&D, production and testing depart-
ments assure that electrical equipment is capable of fulfilling all
required functions at any point in time under conditions of this
sort.
GOSSEN METRAWATT provides you with support in fulfilling
these objectives with the SSP KONSTANTER series SSP 120 /
240 / 320.
SSP-KONSTANTERs are capable of high rates of throughput,
especially where automated test systems for routine testing are
concerned.

The short response time assures the most accurate possible 
replication of quickly changing voltage or current characteristics.
This allows for easy testing and simulation of the performance of
load components dependent upon dynamic supply voltage.
The integrated calibration procedure and the included calibration
report make the SSP KONSTANTER the ideal solution for use in
ISO 9000 certified production facilities and test laboratories.
• Very short response times thanks to BET technology
(bidirectional energy transformation)
• Auto-ranging output with 120 W, 240 W or 320 W
• Output power is doubled in short-time operating range
• Minimum residual ripple
• Very good dynamic control parameters
• Addressable RS 232 interface / analog interface as standard equipment
• Optional IEEE 488 interface
• Integrated sequence function (arbitrary function) for the generation
of automatic voltage and current sequences
• Calibration procedure for menu-driven balancing
• Output ON / OFF function
• Output terminals at front and rear panels
• Master-slave operation for parallel and series connection
• Protection against overvoltage, overcurrent and excessive temperature
• Minimal power loss