Hameg HM800 Empty module HM 800 24-0800-0000 データシート

Subject to change without notice

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General information regarding the 
CE marking

HAMEG instruments fulfi ll the regulations of the 
EMC directive. The conformity test made by HA-
MEG is based on the actual generic and product 
standards. In cases where different limit values 
are applicable, HAMEG applies the strictest 
standard. For emission the limits for residential, 
commercial and light industry are applied. Re-
garding the immunity (susceptibility) the limits 
for industrial environment have been used.

The measuring and data lines of the instrument 
have much infl uence on emission and immunity 
and therefore on meeting the acceptance limits. 
For different applications the lines and/or cables 
used may be different. For measurement opera-
tion the following hints and conditions regarding 
emission and immunity should be observed:

1. Data cables
For the connection between instruments resp. 
their interfaces and external devices, (computer, 
printer etc.) suffi ciently screened cables must 
be used. 

Maximum cable length of data lines must not ex-
ceed 3 m. The manual may specify shorter lengths. 
If several interface connectors are provided only 
one of them may be used at any time.

Basically interconnections must have a double 
screening. For IEEE-bus purposes the double 
screened cable HZ72 from HAMEG is suitable.

2. Signal cables
Basically test leads for signal interconnection 
between test point and instrument should be 
as short as possible. Without instruction in the 
manual for a shorter length, signal lines must be 
less than 3 meters long.

Signal lines must be screened (coaxial cable - RG58/
U). A proper ground connection is required. In com-
bination with signal generators double screened 
cables (RG223/U, RG214/U) must be used.

3. Infl uence on measuring instruments.
In the presence of strong high frequency electric 
or magnetic fi elds, even with careful setup of the 
measuring equipment an infl uence can not be 
excluded.