Signum scales comply with the
European Council Directives as well as
international regulations and standards
for electrical equipment, electromag-
netic compatibility, and the stipulated
safety requirements.
§ To prevent damage to the equipment,
read these installation instructions
carefully before using your Signum
scale.
!Do not use this equipment in hazardous
areas. If you use electrical equipment
in installations and under ambient
conditions subject to stricter safety
standards than those described in the
manual, you must comply with the
provisions as specified in the applicable
regulations for installation in your
country.
!The display and control unit may
be opened only by authorized service
technicians who have been trained by
Sartorius and who follow Sartorius’
standard operating procedures
for maintenance and repair work.
!Make absolutely sure to unplug the
display and control unit from power
before you connect or disconnect
any electronic peripheral devices to
or from the interface port.
– On request, Sartorius will provide infor-
mation on the minimum operating
specifications (in accordance with the
standards for defined immunity to
interference).
!If the equipment is exposed to excessive
electromagnetic interference, it can
affect the value displayed. Once the
disturbance has ceased, the instrument
can be used again in accordance with
its intended purpose.
– Connect only Sartorius accessories and
options, as these are optimally designed
for use with your Signum scale.
– Warning when using pre-wired RS-232
connecting cables: RS-232 cables
purchased from other manufacturers
often have pin assignments that are
incompatible with Sartorius products.
Be sure to check the pin assignments
against the chart in this manual before
connecting the cable, and disconnect
any lines identified differently from
those specified by Sartorius.
$ If there is visible damage to the
equipment or power cord, unplug
the equipment and lock it in a secure
place to ensure that it cannot be
used for the time being.
– Use only extension cords that meet
the applicable standards and have
a protective grounding conductor.
!Disconnecting the ground conductor
is prohibited.
– Note on installation:
The operator shall be responsible for
any modifications to Sartorius equip-
ment and for connections of cables not
supplied by Sartorius and must check
and, if necessary, correct these modifi-
cations.
If Option L8 (24-volt module) for con-
nection to low-voltage sources is used,
be sure to comply with the require-
ments for safety extra low voltage
(SELV) and protective extra low voltage
(PELV).
NOTE:
This equipment has been tested and
found to comply with the limits
pursuant to part 15 of FCC Rules.
These limits are designed to provide
reasonable protection against harmful
interference. This equipment generates,
uses and can radiate radio frequency
energy and, if not installed and used
in accordance with these instructions,
may cause harmful interference to
radio communications. For information
on the specific limits and class of this
equipment, please refer to the Declara-
tion of Conformity. Depending on the
particular class, you are either required
or requested to correct the interference.
If you have a Class A digital device,
you need to comply with the FCC state-
ment as follows:
“Operation of this equipment in a
residential area is likely to cause harm-
ful interference in which case the user
will be required to correct the interfer-
ence at his own expense.” If you have
a Class B digital device, please read
and follow the FCC information given
below:
“[…] However, there is no guarantee
that interference will not occur in a
particular installation. If this equipment
does cause harmful interference to
radio or television reception, which can
be determined by turning the equip-
ment off and on, the user is encouraged
to try to correct the interference by one
or more of the following measures:
– Reorient or relocate the receiving
antenna.
– Increase the separation between
the equipment and receiver.
– Connect the equipment into an
outlet on a circuit different from
that to which the receiver is
connected.
– Consult the dealer or an experienced
radio/TV technician for help.”
Before you operate this equipment,
check which FCC class (Class A or Class
B) it has according to the Declaration of
Conformity included. Be sure to observe
the information of this Declaration.
– Do not expose the equipment
to aggressive chemical vapors or to
extreme temperatures, moisture,
shocks, or vibration.
– Clean your Signum scale only in accor-
dance with the cleaning instructions
(see “Care and Maintenance”).
$ If you have any problems with your
Signum scale: contact your local
Sartorius office, dealer or service center.
IP Rating
Industrial protection ratings for the
housing:
– All models are rated to IP43 (if Option
I65 was ordered; the equipment is rated
to IP65)
– The IP43 (or optional IP65) protection
rating for the display and control unit
is ensured only if the rubber gasket
is installed and all connections are
fastened securely (including the caps on
unused sockets). Weighing platforms
and equipment must be installed and
tested by a certified technician.
– If you install an interface port or
battery connector after setting up your
Signum, keep the protective cap(s) in
a safe place to be used for protecting
the interface port or battery connector
when not in use, or prior to shipment.
Do not leave the interface ports un-
covered. If you are not using a parti-
cular connector, replace the cap
to protect the data interface from
vapors, moisture and dust or dirt.
Using the Equipment in
Legal Metrology
– If the scale is to be verified, make sure
to observe the applicable regulations
regarding verification.
– If any of the verification seals are
damaged, make sure to observe
the national regulations and standards
applicable in your country in such
cases. In some countries, the equipment
must be re-verified.
Warnings and Safety Precautions
4
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