Emerson 3081FG - Manual (Page 18)

Instruction Manual
IB-106-3081 Rev. 1.5
September 2002
1-8 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model 3081FG
ELECTRONICS
Enclosure....................................................................... IP65 (NEMA 4X), weatherproof, and corrosion-resistant
Materials of Construction ............................................... Low copper aluminum
Ambient Temperature Limits ......................................... -20° to 65°C (-4° to 149°F)
Relative Humidity........................................................... 95% with covers sealed
Power Supply and Load Requirements ......................... See Figure 1-4
Inputs (from O
2
Probe)................................................... Two wires - O
2
signal
Two wires - type B thermocouple
Output ............................................................................ One 4-20 mA signal with superimposed digital HART
signal
Hazardous Area Certification......................................... Cenelec EEx ia IIC T4 or T5(2)
NEC Class I Div. I Group B,C,D
Fisher-Rosemount has satisfied all obliga-
tions coming from the European legislation
to harmonize the product requirements in
Europe.
Power Transient Protection ........................................... IEC 801-4
Shipping Weight............................................................. 10 lbs (4.5 kg)
INFRARED REMOTE CONTROL
Power Requirements ..................................................... Three AAA batteries
Hazardous Area Certification......................................... Cenelec EEx ia IIC Class I, Div. I, Group A, B, C, D
(2) Dependent on ambient temperature limits.
OPERATING
REGION
WITHOUT HART COMMUNICATOR
12.0 VDC 18 VDC 40 VDC @ ZERO LOAD 42.4 VDC
MAXIMUM LIFT OFF
POWER SUPPLY VOLTAGE
29750007
600
OHMS
@ 42.4
VDC
1848
OHMS
@ 42.4
VDC
1848
1800
1500
1000
500
250
0
LOAD
(OHMS)
Figure 1-4. Power Supply and Load Requirements