Appendix B Intrinsic Safety; I/O Configuration Vs. Location For Miran Sapphire M205B - Thermo Scientific MIRAN 205B Series Instruction Manual

Appendix B
Intrinsic Safety
The SapphIRe analyzer is available in an intrinsically safe model. Intrinsically safe
apparatus is apparatus in which any spark or thermal effect, produced either normally or
in specified fault conditions, is incapable, under test conditions prescribed in NFPA
Standard Number 493 (entitled "Intrinsically Safe Apparatus for use in Division 1
Hazardous Locations 1978"), of causing ignition of a mixture of flammable or
combustible material in air in its most easily ignitable concentration. This apparatus is
suitable for use in Division 1 locations.
An intrinsically safe unit is restricted with respect to the devices that may be attached
when in an area classified as hazardous. Following is a block diagram of what may be
attached in hazardous locations. Also listed are several warnings that apply to operation
in hazardous areas. To ensure safe operation, please observe these warnings carefully.

I/O CONFIGURATION VS. LOCATION FOR MIRAN SAPPHIRE M205B

Hazardous Locations
Testing Laboratory, Types of Protection,
and Area Classification
ETL and ETL-C Certified, Class I, Division 1, Groups B, C, and D. Temperature Class T4.
Table B-1. Electrical Safety Specifications
Figure B-1. I/O Configuration in Hazardous Locations
B-1
Application
Conditions