Hameg HM504-2, Manual

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7 Subject to change without notice
General information
Type of fuse:
Size 5 x 20 mm; 250V~, C;
IEC 127, Bl. III; DIN 41 662
(or DIN 41 571, Bl. 3).
Cut off: slow blow (T) 0,8A.
CAT I
This oscilloscope is destined for measurements in circuits not
connected to the mains or only indirectly. Direct measurements,
i.e. with a galvanic connection to circuits corresponding to the
categories II, III, or IV are prohibited!
The measuring circuits are considered not connected to the mains
if a suitable isolation transformer fulfi lling safety class II is used.
Measurements on the mains are also possible if suitable probes
like current probes are used which fulfi l the safety class II. The
measurement category of such probes must be checked and
observed.
Measurement categories
The measurement categories were derived corresponding to the
distance from the power station and the transients to be expected
hence. Transients are short, very fast voltage or current excursions
which may be periodic or not.
Measurement CAT IV:
Measurements close to the power station, e.g. on electricity
meters
Measurement CAT III:
Measurements in the interior of buildings (power distribution instal-
lations, mains outlets, motors which are permanently installed).
Measurement CAT II:
Measurements in circuits directly connected to the mains (house-
hold appliances, power tools etc).
Measurement CAT I:
Electronic instruments and circuits which contain circuit breakers
resp. fuses.
Environment of use.
The oscilloscope is destined for operation in industrial, business,
manufacturing, and living sites.
Environmental conditions
Operating ambient temperature: 0 to + 40 degrees C. During trans-
port or storage the temperature may be –20 to +55 degrees C.
Please note that after exposure to such temperatures or in case
of condensation proper time must be allowed until the instrument
has reached the permissible range of 0 to + 40 degrees resp. until
the condensation has evaporated before it may be turned on!
Ordinarily this will be the case after 2 hours. The oscilloscope is
destined for use in clean and dry environments. Do not operate in
dusty or chemically aggressive atmosphere or if there is danger
of explosion.
The operating position may be any, however, suffi cient ventilation
must be ensured (convection cooling). Prolonged operation requires
the horizontal or inclined position.
STOP
Do not obstruct the ventilation holes!
Specifi cations are valid after a 20 minute warm-up period between
15 and 30 degr. C. Specifi cations without tolerances are average
values.
Warranty and repair
HAMEG instruments are subjected to a strict quality control. Prior
to leaving the factory, each instrument is burnt-in for 10 hours.
By intermittent operation during this period almost all defects
are detected. Following the burn-in, each instrument is tested for
function and quality, the specifi cations are checked in all operating
modes; the test gear is calibrated to national standards.
The warranty standards applicable are those of the country in
which the instrument was sold. Reclamations should be directed
to the dealer.
Only valid in EU countries
In order to speed reclamations customers in EU countries may
also contact HAMEG directly. Also, after the warranty expired, the
HAMEG service will be at your disposal for any repairs.
Return material authorization (RMA):
Prior to returning an instrument to HAMEG ask for a RMA number
either by internet (http://www.hameg.com) or fax. If you do not
have an original shipping carton, you may obtain one by calling the
HAMEG sales dept (+49-6182-800-300) or by sending an email
to vertrieb@hameg.com.
Maintenance
Clean the outer shell using a dust brush in regular intervals. Dirt can
be removed from housing, handle, all metal and plastic parts using
a cloth moistened with water and 1 % detergent. Greasy dirt may
be removed with benzene (petroleum ether) or alcohol, there after
wipe the surfaces with a dry cloth. Plastic parts should be treated
with an antistatic solution destined for such parts. No fl uid may
enter the instrument. Do not use other cleansing agents as they
may adversely affect the plastic or lacquered surfaces.
Line voltage
The instrument has a wide range power supply from 105 to 253 V,
50 or 60 Hz ±10%. There is hence no line voltage selector.
The line fuse is accessible on the rear panel and part of the line input
connector. Prior to exchanging a fuse the line cord must be pulled
out. Exchange is only allowed if the fuse holder is undamaged, it
can be taken out using a screwdriver put into the slot. The fuse
can be pushed out of its holder and exchanged.
The holder with the new fuse can then be pushed back in place
against the spring. It is prohibited to ”repair“ blown fuses or to
bridge the fuse. Any damages incurred by such measures will
void the warranty.