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NI 9503 User Manual and Specifications
Caution
Substitution of components may impair
suitability for Class I, Division 2.
Caution
For Division 2 and Zone 2 applications, install
the system in an enclosure rated to at least IP 54 as
defined by IEC 60529 and EN 60529.
Caution
For Division 2 and Zone 2 applications, install
a protection device between the input signal and the V
sup
pin. The device must prevent the V
sup
-to-channel voltage
from exceeding 42 V if there is a transient overvoltage
condition.
Caution
For Zone 2 applications, connected signals
must be within the following limit:
Capacitance.......................... 0.2
μ
F max
Special Conditions for Hazardous Locations Use in
Europe
This equipment has been evaluated as Ex nA IIC T4 Gc equipment
under DEMKO Certificate No. 12 ATEX
1202658X
. Each module
is marked
II 3G and is suitable for use in Zone 2 hazardous
locations, in ambient temperatures of -40 °C
≤
Ta
≤
70 °C. If you are