Safety; Operating Conditions; Warranty And Repair; Maintenance - Rohde & Schwarz Hameg HM8001-2 Manual

I m p o r t a n t h i n t s
the undermost HM8001-2 Mainframe into tilt
position by swinging forward the tilt stands (fi­xed
on front feet). When stacking several instruments,
ensure that ventilation is not impaired in any way.
Instruments with the highest power consumption
should preferably be stacked uppermost.

Safety

This instrument has been designed and tested in
accordance with IEC Publication 1010-1, Safety
requirements for electrical equipment for mea-
surement, control, and laboratory use. It corres-
ponds as well to the the CENELEC regulations EN
61010-1. All case and chassis parts are connected
to the safety earth conductor. Corresponding to
Safety Class 1 regulations (three-conductor AC
power cable). Without an isolating transformer,
the instrument's power cable must be plugged into
an approved three-contact electrical outlet, which
meets International Electrotechnical Commission
(IEC) safety standards.
Warning!
Any interruption of the protective con-
ductor inside or outside the instrument
or disconnection of the protective earth
terminal is likely to render the instru-
ment dangerous. Intentional interruption
is prohibited.
The istrument must be disconnected and secured
against unintentional operation if there is any sug-
gestion that safe operation is not possible.
This may occur:
– if the instrument shows visible damage,
– if the instrument has loose parts.
– if the instrument does not function,
– after long storage under unfavourable
circumstances (e.g. outdoors or in moist
environments),
– after excessive transportation stress (e.g. in
poor packaging).
When removing or replacing the metal
case, the instrument must be completely
disconnected from the mains supply.
If any measurement or calibration procedures are
necessary on the opened-up instrument, these
must only be carried out by qualifi­ed personnel
acquainted with the danger involved.
14
Subject to change without notice

Operating conditions

The ambient temperature range during operation
should be between +10 °C and +40 °C and should
not exceed –40 °C or +70 °C during transport or
storage. The operational position is optional, ho-
wever, the ventilation holes on the HM8001-2 and
on the plug-in modules must not be obstructed.

Warranty and Repair

HAMEG instruments are subjected to a rigorous
quality control. Prior to shipment each instrument
will be burnt in for 10 hours. Intermittent operation
will produce nearly all early failures. After burn
in, a fi­nal functional and quality test is performed
to check all operating modes and fulfi­lment of
specifi­cations. The latter is performed with test
equipment traceable to national measurement
standards.
Statutory warranty regulations apply in the coun-
try where the HAMEG product was purchased. In
case of complaints please contact the dealer who
supplied your HAMEG product.

Maintenance

The most important characteristics of the instru-
ments should be periodically checked according to
the instructions provided in the sections "Opera-
tional check and "Alignment procedcure. To obtain
the normal operating temperature, the mainframe
with inserted module should be turned on at least
60 minutes before starting the test. The specifi­ed
alignment procedure should be strictly observed.
When removing the case detach mains/line cord
and any other connected cables from case of the
mainframe HM8001-2. Remove both screws on
rear panel and, holding case fi­rmly in place, pull
chassis forward out of case. When later replacing
the case, care should be taken to ensure that
it properly fi­ts under the edges of the front and
rear frames. After removal of the two screws at
the rear of the module, both chassis covers can
be lifted. When reclosing the module, care should
be taken that the guides engage correctly with the
front chassis.
Cleaning the HM8001-2
The exterior of the mainframe should be regularly
cleaned with a small brush. Stubborn stains on