Warranty And Repair; Maintenance; Mains Voltage; Changing The Line Fuse - Hameg Instruments HM7042-5 Handbuch

to be allowed for drying prior to operation. For safety reasons
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,
sufficient 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 fins.
Specifications with tolerances are valid after a 30 minute warm-
up period and at 23 degrees C. Specifications 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 instrument is
tested for function and quality, the specifications 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 (phone: +49 (0) 6182 800 500,
fax: +49 (0) 6182 800 501) or by sending an e-mail to service@
hameg.com.

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 fluid should be allowed to get
into the instrument. If other cleaning fluids are
used damage to the lacquered or plastic surfaces is
possible.

Mains voltage

A main voltage of 115 V and 230 V 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
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 damages. 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.
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 2,5 A slow blow
115 V 2 x 5 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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