Omicron MPD 800, User Manual

Page: 33 / 67

OMICRON 33
MPD 800 measurement system
Integration into systems
The MPD 800 acquisition unit, CPL1 , CPL2 and the V-to-AC-adapter are designed as a system. It is
recommended to use them as described in the respective “Designated use” (see 2.2) and “Application”
(see 2.3) chapters. If one or more of the
MPD 800 system components need to be integrated into a
system, the following additional precautions must be fulfilled:
► Do not use the
V-to-AC-adapter in an electrical path where a failure of the V-to-AC-adapter (for
example, short or open circuits of measurement inputs) causes:
• a voltage regulation feedback loop to become dysfunctional.
• an over-current protection to become dysfunctional.
• an indicator for hazardous live electrical quantities (IEC 61010-1, VDE 0105-100) to become
dysfunctional.
► If the V-to-AC-adapter needs to be grounded, use the shortest path with the lowest achievable
inductance. For this purpose, use the common grounding circuit of the test voltage source, test object
and coupling capacitor.
► Place MCU2 in close proximity to the PC and outside of the high voltage or test area (EN 50191).
Make sure that the computer is grounded through protective earth.
► It is not recommended to place the V-to-AC-adapter outside of the high-voltage or test area
(EN 50191). If the V-to-AC-adapter unit is placed outside these areas, perform additional precautions
in order to achieve an equivalent safety level.
CAUTION
Minor or moderate injury caused by voltage or current possible
If the ratings are violated, damage or loss of precision of the equipment might be the
consequence.
► Observe the maximum current and power ratings.
WARNING
Death or severe injury caused by high voltage or current possible
The V-to-AC-adapter is not intended to be used for measurements which are connected
directly to mains circuits (IEC61010-2-030).
► Make sure to connect V-to-AC-adapter to the test setup using appropriate rated
accessories because the V-to-AC-adapter is not able to handle over-voltage category
CAT I.
DANGER
Death or severe injury caused by high voltage or current
► Always observe the five safety rules (see 1.2.2 "Safety rules" on page 6) before
connecting or integrating the MPD 800 acquisition unit into a system.
► Provide protection against live parts in order to avoid accidental contacts.