Measurement Computing LogBook Series - Manual (Page 125)

LogBook User’s Manual 949297 CE Compliance 8-3
Emissions/Immunity Conditions
The specific immunity conditions for CE compliance vary by product; but general immunity conditions
include:
• Cables must be shielded, braid-type with metal-shelled connectors. Input terminal connections are
to be made with shielded wire. The shield should be connected to the chassis ground with the
hardware provided.
• The host computer must be properly grounded.
• In low-level analog applications, some inaccuracy is to be expected when I/O leads are exposed to
RF fields or transients over 3 or 10 V/m as noted on the Declaration of Conformity.
CE Enhancements for Existing Products
This section describes three CE enhancements.
• DBK41/CE
• Edge Guards for the DBK5, DBK8, and DBK44
• BNC Connectors for CE compliance
Edge Guards for DBK5, DBK8, and DBK44
A plastic barrier attached to the end of a DBK card helps prevent access to leads, and to live circuits.
The edge guards attach to DBKs (see figure below) that are mounted in a DBK41/CE, with EMI shield
plates. The access slot allows insulated wires to pass through the barrier.
DBK41/CE
The DBK41/CE includes 3 variations of EMI shield plates that attach to the DBK41 enclosure. Besides
acting as an electrical safety barrier, these shields reduce electromagnetic interference (EMI).
Note: The CE kit is included with the DBK41/CE. It can be purchased as an optional accessory for use
with DBK41.