Spectrum Controls 1734sc-IE2CH - Manual (Page 14)

2-2 Point IO™ 2/4 Channel Analog HART Module
User’s Manual Pub. 0300257-01 Rev. A
5 VDC 24 VDC
15 mA 20 mA
Use the table below to determine the maximum number of IExCH modules that can be
installed in a MicroLogix system.
Section 2.3
General
Considerations
1734 I/O is suitable for use in an industrial environment when installed in accordance
with these instructions. Specifically, this equipment is intended for use in clean, dry
environments Pollution degree 2
1 and to circuits not exceeding Over Voltage Category
II
2
(IEC 60664-1)
3
.
2.3.1 Hazardous Location Considerations
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or non-
hazardous locations only. The following WARNING statement applies to use in
hazardous locations.
!
Attention
EXPLOSION HAZARD
•
Substitution of components may impair suitability for Class I,
Division 2.
•
Do not replace components or disconnect equipment unless
power has been switched off or the area is known to be non-
hazardous.
•
Do not connect or disconnect components unless power has
been switched off or the area is known to be non-hazardous.
•
This product must be installed in an IP54 rated enclosure.
•
All wiring must comply with N.E.C. article 501-4(b).
1
Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that
occasionally a temporary conductivity caused by condensation shall be expected.
2
Over Voltage Category II is the load level section of the electrical distribution system. At this level
transient voltages are controlled and do not exceed the impulse voltage capability of the product’s
insulation.
3
Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC)
designations.