Warranty And Repair; Maintenance; Mains Voltage; Changing The Line Fuse - Hameg Instruments HM7044 Manual

operation is only allowed from 3 terminal connectors with
a safety ground connection or via isolation transformers of
class 2. The instrument may be used in any position, however,
suffi cient ventilation must be assured as convection cooling is
used. For continuous operation prefer a horizontal or slightly
upward position using the feet.
Do not cover either the holes of the case nor the
cooling fi ns.
Specifi cations with tolerances are valid after a 30 minute
warm-up period and at 23 degrees C. Specifi cations without
tolerances are typical values of an average instrument.

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 instru-
ment 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 service dept (+49 (0) 6182 800 500)
or by sending an email to [email protected].

Maintenance

The instrument does not require any maintenance. Dirt may
be removed by a soft moist cloth, if necessary adding a mild
detergent. (Water and 1 %.) Grease may be removed with ben-
zine (petrol ether). Displays and windows may only be cleaned
with a moist cloth.
Do not use alcohol, solvents or paste. Under no
circumstances any fl uid should be allowed to get
into the instrument. If other cleaning fl uids are
STOP
used damage to the lacquered or plastic surfaces
is possible.

Mains voltage

A main voltage of 115V and 230V can be chosen. Please check
whether the mains voltage used corresponds with the voltage
indicated by the mains voltage selector on the rear panel. If
not, the voltage has to be changed. In this case the line fuse
has to be changed, too.
Please note:
After changing the main voltage, the line fuse has
STOP
to be changed. Otherwise the instrument may be
destroyed.

Changing the line fuse

The fuses are accessible from the outside and contained in
the line voltage connector housing. Before changing a fuse
disconnect the instrument from the line, the line cord must
be removed. Check fuse holder and line cord for any dama-
ges. Use a suitable screw driver of appr. 2 mm to depress
the plastic fuse holder releases on both sides, the housing is
marked where the screw driver should be applied. After its
release the fuse holder will come out by itself pushed forward
by springs. The fuses can then be exchanged, please take care
not to bend the contact springs. Reinsertion of the fuse holder
is only possible in one position and by pressing against the
springs until the locks engage.
It is forbidden to repair defective fuses or to bridge
them by any means. Any damage caused this way
will void the warranty.
STOP
Types of fuses:
Size 5 x 20 mm; 250V~,
IEC 60127-2/5
EN 60127-2/5
Line voltage Correct fuse type
230 V 2 x 5 A slow blow
115 V 2 x 10 A slow blow
I m p o r t a n t h i n t s
Subject to change without notice
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