Fisher 3660 - FM; ATEX

Instruction Manual
D101402X012
3660 and 3661 Positioners
September 2015
6
Table 3. Hazardous Area Classifications for Fisher 3661 Positioner—CSA (Canada)
Certification Body Certification Obtained Entity Rating Temperature Code
CSA
Intrinsically Safe
Ex ia IIC T4/T5/T6 per drawing GE28591 (see figure 27)
Class I, II Division 1 GP A,B,C,D,E,F,G T4/T5/T6
per drawing GE28591 (see figure 27)
Vmax = 30 VDC
Imax = 150 mA
Pi = 1.25 W
Ci = 0 nF
Li = 0 mH
T4 (Tamb ≤ 82°C)
T5 (Tamb ≤ 62°C)
T6 (Tamb ≤ 47°C)
Type n
Ex nA IIC T6
- - - T6 (Tamb ≤ 82°C)
Class I Division 2 GP A,B,C,D T6 - - - T6 (Tamb ≤ 82°C)
FM
Intrinsically Safe, Type n, and Non‐incendive
No special conditions for safe use.
Refer to table 4 for approval information.
Table 4. Hazardous Area Classifications for Fisher 3661 Positioner—FM (United States)
Certification Body Certification Obtained Entity Rating Temperature Code
FM
Intrinsically Safe
Class I Zone 0 AEx ia IIC T4/T5/T6
per drawing GE28590 (see figure 28)
Class I, II, III Division 1 GP A,B,C,D,E,F,G T4/T5/T6
per drawing GE28590 (see figure 28)
Vmax = 30 VDC
Imax = 150 mA
Pi = 1.25 W
Ci = 0 nF
Li = 0 mH
T4 (Tamb ≤ 82°C)
T5 (Tamb ≤ 62°C)
T6 (Tamb ≤ 47°C)
Type n
Class I Zone 2 AEx nA IIC T5
- - - T5 (Tamb ≤ 82°C)
Class I Division 2, GP A,B,C,D T5
Class II, III Division 2, GP F,G T5
- - - T5 (Tamb ≤ 82°C)
ATEX
Special Conditions for Safe Use
Intrinsically Safe
This equipment is intrinsically safe and can be used in potentially explosive atmospheres.
The electrical parameters of certified equipment which can be connected to the device must not exceed the following
value: U
0
≤
30 Vdc; I
0
≤
150 mA; P
0
≤
1.25 W.
Ambient Temperature:
T6, at Tamb = 47_C
T5, at Tamb = 62_C
T4, at Tamb = 82_C
Type n
The 3661 has an IP44 ingress protection: it is only intended to be installed in an area where a convenient protection is
ensured against the entry of solid foreign bodies and liquids which may decrease the safety.
Refer to table 5 for additional approval information.