8 Construction
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8-9
8.6 Measurement Inputs
The 5017’s front and rear panel are both equipped with five safety connectors, to
which measurement signals can be connected. In order to reduce thermoelectric volt-
age and contact resistance, the connectors are composed of high-grade copper-tellur.
For precise measurements of even the smallest voltages and resistances, you should
also use measurement leads with connectors composed of copper-tellur (see Accesso-
ries).
Front / Rear Measurement Connectors
Generally, the front measurement inputs are to be connected through appropriate ba-
nana plugs. If the measurement connectors on the rear panel are needed, the internal
connector board must be re-positioned. In order to do this, please proceed as de-
scribed in chapter two, subparagraph 2.10, "Connection of Measurement Leads" ,”
after unplugging the unit.
To protect the user, a front panel switch that would allow switching between the front
panel and rear panel inputs was not implemented.
8.7 Power
A high-performance power filter connects the incoming AC mains voltage with the
unit’s power supply. This filter prevents any influence on measurement results from
power line interference, while preventing the unit itself from causing interference to
the power line, which could affect other measurement units.
