Instruction Manual
D101351X012
646 Transducer
January 2015
5
Hazardous Area Classifications and Special Instructions for “Safe Use” and
Installation in Hazardous Locations
Certain nameplates may carry more than one approval, and each approval may have unique installation/wiring
requirements and/or conditions of “safe use”. These special instructions for “safe use” are in addition to, and may
override, the standard installation procedures. Special instructions are listed by approval.
Note
This information supplements the nameplate markings affixed to the product.
Always refer to the nameplate itself to identify the appropriate certification. Contact your Emerson Process Management sales
office for approval/certification information not listed here.
WARNING
Failure to follow these conditions of “safe use” could result in personal injury or property damage from fire or explosion
and area re‐classification.
CSA
Intrinsically Safe, Explosion proof, Type n Dust‐Ignition proof, DIV 2
No special conditions for safe use.
Refer to table 3 for additional information.
Table 3. Hazardous Area Classifications—CSA (Canada)
Certification Body
Certification Obtained
Entity Rating
Temperature Code
CSA
Intrinsically Safe
Ex ia IIC T4/T5 per drawing GE28591 (see figure 12)
Ex ia Intrinsically Safe
Class I, II, Division 1 GP A,B,C,D,E,F,G T4/T5
per drawing GE28591 (see figure 12)
Vmax = 30 VDC
Imax = 150 mA
Pi = 1.0 W
Ci = 0 nF
Li = 0 mH
T4 (Tamb
≤
71
°
C)
T5 (Tamb
≤
40
°
C)
Explosion-proof
Ex d IIC T6
Class I, Division I, GP A,B,C,D T6
- - -
T6 (Tamb
≤
71
°
C)
Type n
Ex nL IIC T6
- - -
T6 (Tamb
≤
71
°
C)
Class I, Division 2, GP A,B,C,D T6
Class II, Division 1, Groups E,F,G T6
Class II, Division 2, GP F,G T6
- - -
T6 (Tamb
≤
71
°
C)
