
KONSTANTER SPL Series
Programmable Electronic Load 3-349-703-15
2/11.14
Supplement to Operating Instructions 3-349-702-03
GMC-I Messtechnik GmbH 1
This supplement and the operating instructions include
all safety precautions necessary for operator protection,
for the protection of the electronic load and the con-
nected devices.
Please make sure to read the detailed operating instructions in
pdf format (spl-series-ba_gb.pdf) on the attached CD-ROM or
at www.gossenmetrawatt.com.
This supplement to operating instructions is no substitute for
the detailed instructions!
The following general safety precautions must always be adhered
to during operation, maintenance and repair of the device. Non-
compliance with these safety precautions, or with other explicit
warnings included in this supplement and in these operating
instructions, is deemed a violation of design-specific safety stan-
dards and use for intended purpose. The manufacturer assumes
no liability in the event of noncompliance with these safety pre-
cautions.
Safety Precautions
1The device may only be operated in accordance with the pro-
cedures included in this supplement and in the operating
instructions.
2High-voltage conducting components are located inside the
device, which must not be contacted directly.
3Read the operating instructions carefully before placing the
instrument into service, in order to assure your own safety.
4The device must be grounded.
The device is equipped with a protective earth terminal. The
device chassis and the housing must be grounded in order to
eliminate the danger of electrical shock. The device may only
be connected to mains power by means of a 3 conductor
cable, and the protective conductor must be securely con-
nected with the protective conductor terminal of the mains
outlet.
5Keep away from voltage conducting electrical circuits!
Operating personnel may not remove any of the device’s cov-
ers. Only trained personnel are permitted to replace compo-
nents and change internal settings. Components may not be
touched as long as the power cable is connected.
Dangerous voltage may be present even after the power cable
has been disconnected from the mains.
The device must be disconnected from the mains, electrical
circuits must be discharged and external voltage sources
must be disconnected before touching any components, in
order to prevent personal injury.
Due to the fact that additional danger may otherwise occur,
only original replacement parts may be used and the device
may not be modified in an unauthorized fashion. In order to
assure uninterrupted functionability of the device’s safety fea-
tures, it may only be maintained and/or repaired by qualified
service providers.
Rear panel (mains terminal and fuse holder)
Connecting the Power Cable
1Examine the voltage selector switch on the back of the device
in order to assure that the selected voltage coincides with
available mains power. If this is not the case, observe the note
printed on the device’s mains inlet plug, and make sure that
the correct fuse is utilized.
2The on/off switch in the device’s front panel must be switched
off before the power supply is connected to the mains.
3Connect the 3 conductor cable with plug to the mains outlet.
The device must be connected to the protective earth con-
ductor.
4Press the switch on the front panel in order to turn the device
on. The device is now ready for operation.
1 Mains terminal (AC input socket)
2 Line voltage selection switch (voltage selector)
3 Fuse holder
4 RS232 Interface
5 GPIB Interface