Operating Conditions; Warranty And Repair; Maintenance; Protective Switch Off - Hameg HM5530 Manual

any unintended operation. The protection is likely to be impa-
ired if, for example, the instrument shows visible damage, fails
to perform the intended measurements, has been subjected to
prolonged storage under unfavourable conditions (e.g. in the
open or in moist environments), has been subject to severe
transport stress (e.g. in poor packaging).

Operating conditions

This instrument must be used only by qualifi ed experts who are
aware of the risks of electrical measurement. The instrument
is specifi ed for operation in industry, light industry, commercial
and residential environments.
Due to safety reasons the instrument must only be connected to
a properly installed power outlet, containing a protective earth
conductor. The protective earth connection must not be broken.
The power plug must be inserted in the power outlet while any
connection is made to the test device.
The instrument has been designed for indoor use. The per-
missible ambient temperature range during operation is
+10 °C (+50 °F) ... +40 °C (+104 °F). It may occasionally be
subjected to temperatures between +10 °C (+50 °F) and -10 °C
(+14°F) without degrading its safety. The permissible ambi-
ent temperature range for storage or transportation is 40 °C
(-40 °F) ... +70 °C (+158 °F). The maximum operating altitude is
up to 2200 m (non operating 15000 m). The maximum relative
humidity is up to 80%.
If condensed water exists in the instrument it should be accli-
matized before switching on. In some cases (e.g. extremely cold
instrument) two hours should be allowed before the instrument
is put into operation. The instrument should be kept in a clean
and dry room and must not be operated in explosive, corrosive,
dusty, or moist environments. The instrument can be operated
in any position, but the convection cooling must not be impaired.
The ventilation holes may not be covered. For continuous ope-
ration the instrument should be used in the horizontal position,
preferably tilted upwards, resting on the tilt handle.
The specifi cations stating tolerances are only valid if the instru-
ment has warmed up for 20 minutes at an ambient temperature
between +15 °C (+59 °F) and +30 °C (+86 °F). Values without
tolerances are typical for an average instrument.

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 fi nal functional and quality test is performed to
check all operating modes and fulfi lment of specifi cations. The
latter is performed with test equipment traceable to national
measurement standards.
Statutory warranty regulations apply in the country where the
HAMEG product was purchased. In case of complaints please
contact the dealer who supplied your HAMEG product.

Maintenance

The exterior of the instrument should be cleaned regularly with
a dusting brush. Dirt that is diffi cult to remove on the casing
and handle, the plastic and aluminium parts, can be removed
with a moistened cloth (99% water +1% mild detergent). Spirit
or washing benzine (petroleum ether) can be used to remove
greasy dirt. The screen may be cleaned with water or washing
benzine (but not with spirit (alcohol) or solvents), it must then be
wiped with a dry clean lint free cloth. Under no circumstances
must the cleaning fl uid get into the instrument. The use of other
cleaning agents can attack the plastic and paint surfaces.

Protective Switch Off

This instrument is equipped with a switch mode power supply.
It has both over voltage and overload protection, which will
cause the switch mode supply to limit power consumption to a
minimum. In this case a ticking noise may be heard.

Power supply

The instrument operates on mains/line voltages between 105 V
and 250 V . No means of switching to different input voltages
AC
has therefore been provided.
The power input fuse is externally accessible. The fuse holder
and the 3 pole power connector is an integrated unit. The po-
wer input fuse can be exchanged after the rubber connector is
removed. The fuse holder can be released by lever action with
the aid of a screwdriver. The starting point is a slot located
on contact pin side. The fuse can then be pushed out of the
mounting and replaced.
The fuse holder must be pushed in against the spring pressure
and locked. Use of patched fuses or short circuiting of the fuse
holder is not permissible; HAMEG assumes no liability whatso-
ever for any damage caused as a result, and all warranty claims
become null and void.
Fuse type:
Size 5x20mm; 0.8A, 250V AC fuse;
must meet IEC specifi cation 127,
Sheet III (or DIN 41 662
or DIN 41 571, sheet 3).
Time characteristic: time lag.
I m p o r t a n t h i n t s
Subject to change without notice
AC
31