Correct Operation; Warranty And Repair; Maintenance; Overtemperature Protection - Hameg Instruments HM8040-3 Benutzerhandbuch

Exceeding 42 V
By series connecting all outputs the 42 V
limit can be exceeded which means that
touching live parts may incur danger of
life! It is assumed that only qualified and
extensively instructed personnel are
allowed to operate this instrument and/
or the loads connected to it.

Correct operation

HAMEG modules are destined to be operated
normally in the mainframe HM8001-2. If they are
used in other systems it must be ensured that
they are operated with the correct supply voltages
(see specification). All applicable safety rules are
to be observed.
The instruments are destined for operation in
clean and dry rooms. Operation is precluded in
dusty or moist atmosphere, if there is danger
of explosion, and if aggressive chemicals are
present.
The operating temperature range is +5 °C ... +40 °C,
the strorage and transport temperature range
–20 °C ... +70 °C. In case of suspected condensation
a 2 hours acclimatizing period has to be awaited
before the instrument may be operated.
Safety regulations require that the mainframe be
only operated from mains outlets with a safety
ground connector or via an isolation transformer
of safety class 2. No special orientation of the
instrument is prescribed, however, sufficient air
circulation must be ensured. Continuous opera-
tion will require a horizontal or slightly tilted (front
feet extended) position.
The ventilation holes must not be
obstructed!
Please note: Because of electromag-
netic reasons, it is not permitted to use
two moduls of type HM8040-3 in the
same mainframe.

Warranty and Repair

Our instruments are subject to strict quality con-
trols. Prior to leaving the manufacturing site, each
instrument undergoes a 10-hour burn-in test. This
is followed by extensive functional quality testing
I m p o r t a n t h i n t s
to examine all operating modes and to guarantee
compliance with the specified technical data. The
testing is performed with testing equipment that
is calibrated to national standards. The statutory
warranty provisions shall be governed by the laws
of the country in which the product was purchased.
In case of any complaints, please contact your
supplier.
The product may only be opened by
authorized and qualified personnel.
Prior to working on the product or
before the product is opened, it must
be disconnected from the AC supply
network. Otherwise, personnel will
be exposed to the risk of an electric
shock.
Any adjustments, replacements of parts, main-
tenance and repair may be carried out only by
authorized technical personnel. Only original
parts may be used for replacing parts relevant to
safety (e.g. power switches, power transformers,
fuses). A safety test must always be performed
after parts relevant to safety have been replaced
(visual inspection, PE conductor test, insulation
resistance measurement, leakage current mea-
surement, functional test). This helps ensure the
continued safety of the product.

Maintenance

This instrument needs no special maintenance
if porperly used. A moist cloth will clean it. Use
a soft detergent (water plus 1 % detergent) for
the removal of persistent dirt. Remove grease
with benzine (petrol ether). Displays and display
windows may only be cleaned with a moist cloth.
Use no alcohol, solvents or abrasives!
Under no circumstances any fluid must
enter the instrument. Other than the
specified cleaning materials may affect
plastic or lacquered surfaces.

Overtemperature protection

If an internal temperature of 75 ... 80 degrees C
is exceeded the outputs and the displays will be
turned off. This will be indicated by 3 blinking
dashes in the left and right displays. As soon as
the displays return to the normal display of the
values set the instrument will again be ready to
operate. The outputs will remain disabled until the
pushbutton OUTPUT
Subject to change without notice
is depressed.
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