User Manual
Safety, EMC, EMF, ESD Norms and Equipment Label-
9500 MPR Rel. 3.1
3DB18809AAAA Issue 136/980
If it is a Class 1 equipment connected to mains, then the label associated to it will state that the equip-
ment will have to be grounded before connecting it to the power supply voltage, e.g.:
[2] Safety instructions
DANGER! Possibility of personal injury:
Carefully observe the specific procedures for installation / turn-up and commissioning / maintenance
of equipment parts where D.C. power is present, described in the relevant installation / turn-up and
commissioning / maintenance documents and the following general rules:
• Personal injury can be caused by -48VDC. Avoid touching powered terminals with any exposed
part of your body.
• Short circuiting, low-voltage, low-impedance, DC circuits can cause severe arcing that can
result in burns and/or eye damage. Remove rings, watches, and other metal jewelry before
working with primary circuits. Exercise caution to avoid shorting power input terminals.
Risks of Explosions: labeling and safety instructions
This risk is present when batteries are used, and it is signaled by the following label:
Therefore, slits or apertures are made to let air circulate freely and allow dangerous gasses to down flow
(battery-emitted hydrogen). A 417-IEC-5641 Norm. compliant label is affixed next to it indicating that the
openings must not be covered up.
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