ock diagram
Input
Harting
socket
Variable
transformer
L
U
IN
U
VAR
N
PE
8AT
1
1
3
2
2
N
PE
Output
cable with
Harting
connector
VAR 6503
Manual variable transformer
S
Ext. DVM
Integrated function unit to Modula system
Simulation of under- and overvoltages
Power line dips to arbitrary levels
Complies with EN/IEC 61000-4-11
Connection for external DVM
Sturdy design with industrial connectors
Your local partner:
To find your local partner within Schaffners global network, please go to www.schaffner.com
690-808B April 2005
The manually operated variable transformer
type VAR 6503 is a standard accessory for the
Schaffner Modula 6000 instrumentation series.
It provides a convenient means of adjusting
the incoming supply voltage to arbitrary
levels set by the operator. It is required for
power quality testing (PQT) purposes and is
fully compliant with the latest revision of
EN/IEC 61000-4-11 for voltage dips and
drops tests of EUTs with up to 7.5A current
consumption.
It is fitted with carrying handles as part of its
overall good ergonomic design, which makes
for ease of handling. Further, the unit may be
used in any of three operating positions;
laying or standing on a workbench, or for
more permanent applications, it can be wall-
mounted.
The few control elements are readily
accessible on the front panel. An EUT power
ON/OFF switch with a power ON indicator and
a large rotary handwheel to set the necessary
voltage ensure easy and intuitive operation.
Two banana sockets provide a convenient
means to connect an external DVM for more
accurate voltage setting.
The unit has been designed for use in rugged
industrial environments. Professional quality
connectors ensure user safety, additional
system protection is provided by an 8A fuse
located in the front panel. To find your local partner within
Schaffners global network, please go to
www.schaffner.com
690-808B Druckerei Uebelhart AG
April 2005
© 2005 Schaffner EMC. Specifications
subject to change without notice.
All trademarks recognized.
Schaffner is an ISO-registered company.
Its products are designed and manufac-
tured under the strict quality and environ-
mental requirements of the ISO 9001 and
ISO 14001 standards.
This document has been carefully checked.
However, Schaffner does not assume any
liability for errors or inaccuracies.
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