Rosemount 3144 - Page 58

Rosemount Models 3144 and 3244MV Smart Temperature Transmitters
5-2
Load Limitations
NOTE
HART communication requires a loop resistance between 250 and
1100 ohms. Do not communicate with the transmitter when power is
below 12 V dc at the transmitter terminals.
Hazardous Locations Certifications
Factory Mutual (FM) Approvals
E5 Explosion Proof for Class I, Division 1, Groups A, B, C, and D.
Dust-Ignition Proof for Class II, Division 1, Groups E, F, and G.
Dust-Ignition Proof for Class III, Division 1 hazardous locations.
Non-Incendive for Class I, Division 2, Groups A, B, C, and D (T4A).
Indoor and outdoor use. Ambient Temperature Limit: –50 to 85 °C.
Explosion Proof approval only when connected in accordance with
Rosemount drawing 03144-0220. For Group A, seal all conduits
within 18 inches of enclosure; otherwise, conduit seal not required
for compliance with NEC 501-5a(1).
K5 Combination of E5 and the following:
Intrinsically Safe for Class I, II, and III, Division 1, Groups A, B, C,
D, E, F, and G. Non-Incendive Field Circuit for Class I, II, III;
Division 2, Groups A, B, C, D, F, and G. Ambient Temperature
Limit: –50 to 60 °C. Intrinsically Safe and Non-Incendive field
circuit approval only when installed in accordance with Rosemount
drawing 03144-0221.
Canadian Standards Association (CSA) Approvals
C6 Combination of the following:
Explosion Proof for Class I, Division 1, Groups A, B, C, and D;
Class II, Division 1, Groups E, F, and G; Class III, Division 1
hazardous locations. Class I, Division 2, Groups A, B, C, and D.
Factory sealed. Ambient Temperature Limit: –50 to 85 °C.
Intrinsically Safe for Class I, Division 1, Groups A, B, C, and D;
Class II, Division 1, Groups E, F, and G; Class III, Division 1
hazardous locations when installed in accordance with Rosemount
drawing 03144-0222.
Factory Mutual and Canadian Standards Association Approvals
KB Combination of K5 and C6
1250
1000
750
250
0
10
12.0
20 30 40 42.4
Supply Voltage (V dc)
Maximum Load = 43.5 3 (Supply Voltage – 12.0)
Operating
Region
4–20 mA dc
Load (Ohms)
500
1100