Section 2.3 General Considerations; Hazardous Location Considerations - Spectrum Controls 1762sc-IF4OF4 User Manual

1762 analog combo module 4 channels in/4 channels out
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2-2
Chapter 2: Installation and Wiring
Section 2.3
General
Considerations
WARNING
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.
User's Manual Pub. 0300247-01 Rev. D
Table 2-1
Max 5 V
Controller
Bus Current
ML1100
800
ML1200 (24 pt.) 400
ML1200 (40 pt.) 600
ML1400 (All)
1500
1762 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
Over Voltage Category II

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.
EXPLOSION HAZARD
Substitution of components may impair suitability for Class I,
Division 2. Touch a grounded object to discharge static potential.
Do not replace components or disconnect equipment unless power
has been switched off or the area is known to be non-hazardous.
Touch a grounded object to discharge static potential.
This product must be installed in an enclosure. Touch a grounded
object to discharge static potential.
All wiring must comply with N.E.C. article 501-4(b). Touch a
grounded object to discharge static potential.
Max 24 V
Bus Current
700
350
500
1500
2
3
(IEC 60664-1)
.
Max # of IF4OF4 Modules
4
3
3
7
1
and to circuits not exceeding

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