29
Important hints
2. The instrument may be used in any position, however,
sufficient ventilation must be assured as convection coo-
ling is used. For continuous operation prefer a horizontal or
slightly upward position using the feet.
Specifications with tolerances are valid after a 30 minute
warmup period and at 23 °C. Specifications without tole-
rances are typical values of an average instrument.
1 .7 Warranty and Repair
HAMEG instruments are subjected to a strict quality con-
trol. Prior to leaving the factory, each instrument is burnt-
in for 10 hours. By intermittent operation during this pe-
riod 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 coun-
try in which the instrument was sold. Reclamations
should be directed to the dealer where the instrument was
purchased.
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 (see RMA).
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
(+49 (0) 6182 800 500). If you do not have an original ship-
ping carton, you may obtain one by calling the HAMEG
service dept (+49 (0) 6182 800 500) or by sending an email
to [email protected].
1 .8 Maintenance
The display can be cleaned using water or a glass cleaner
(but not with alcohol or other cleaning agents). Thereafter
wipe the surfaces with a dry cloth. No fluid may enter
the instrument. Do not use other cleaning agents as
they may adversely affect the labels, plastic or lacquered
surfaces.
Do not cover either the holes of the case nor the cooling fins.
Clean the outer case using a dust brush or a soft, lint-
free dust cloth at regular intervals.
Before cleaning please make sure the instrument is switched off
and disconnected from all power supplies.
No part of the instrument should be cleaned by the use of
cleaning agents (as f.e. alcohol) as they may adversely affect the
labeling, the plastic or lacquered surfaces.
1 .9 Line voltage selector
The instrument is destined for operation on 115 or 230 V
mains, 50/60 Hz. The proper line voltage is selected with
the line voltage selector. It is necessary to change the fuse
observing the proper values printed on the back panel.
1 .10 Change of fuse
The mains fuse is accessible on the back panel. A change
of the fuse is only allowed after the instrument was dis-
connected from the line and the power cord removed.
Fuse holder and power cord must not show any sign of da-
mage. Use a screw driver to loosen the fuse holder screw
counterclockwise while pressing the top of the fuse hol-
der down. The top holding the fuse will then come off. Ex-
change the defective fuse against a correct new one.
It is forbidden to repair defective fuses or to bridge
them by any means . Any damage caused this way
will void the warranty .
Type of fuse:
5 x 20 mm; 250V~, C;
IEC 127/III; DIN 41662 (DIN 41571/3).
Value
115 V: 1.0 A slow blow
230 V: 0.5 A slow blow
Please note:
After changing the main volage, the line fuse has to be changed.
Otherwise the instrument may be destroyed.
Summary of Contents for HAMEG HM8135
Page 50: ...50 Flow Charts Flow Charts Function selection Step control Phi Phi Phi ...
Page 51: ...51 Flow Charts Amplitude Modulation Control FSK PSK GATE ...
Page 52: ...52 Flow Charts Phase Modulation Control FSK PSK GATE ...
Page 53: ...53 Flow Charts Frequency Modulation Control FSK PSK GATE ...
