Dwyer DPM - Manual (Page 10)

Particulate Monitoring Systems
Installation & Operating Manual
Document No. 210-1003-M Page 3 ©2007
1.3 Hazardous Area Systems
Systems approved for use in hazardous areas include nameplates indicating that they are suitable for
installation in hazardous areas. The nameplate lists allowable hazardous areas and T code ratings as
well as approval agency markings. Do not install any device that is not tagged as suitable for the
area classification.
Sections or statements in this manual that apply to approved hazardous area systems or installations
are designated with the following symbol. Designation for use in hazardous areas does not make the
system suitable for use as a functional safety device.
EXPLOSION HAZARD
• Hazardous area control drawing 225-1005 must be followed for proper
installation.
• Installation must be in accordance with ANSI/ISA RP12.6 and National
Electric Code ANSI/NFPA 70, Article 504
• Substitution of components may impair intrinsic safety.
• Do not connect or disconnect components unless power has been
disconnected.
• Designation for use in hazardous areas does not make the system
suitable for use as a functional safety device.