General Considerations; Hazardous Location Considerations - Spectrum Controls Micro800 2085-OB32-SC User Manual

2-2 Chapter 2: Installation and Wiring
General
Considerations
WARNING
Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that occasionally
2
a temporary conductivity caused by condensation is expected.
User's Manual Pub. 0300309-01 Rev. B
The maximum voltage to be provided by the user power supply is 30 VDC. The
minimum voltage provided by the user power supply is 10.5 VDC. 12/24 VDC
from the user is provided to the module on terminal block pins marked PWR0
and PWR1, and GND0 and GND1. Two pins for each power line are provided.
These pins are not connected, they are isolated from each other for group
isolation.
The 2085-OX32-SC modules are 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

2.2.1 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; Class II, 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 enclosure.
• All wiring must comply with N.E.C. article 501-4(b), 502-4(b), or
503-3(b), as appropriate for Class I, Class II, and Class III
equipment.
).
2