Instruction Manual

IB-106-3081 Rev. 1.5 September 2002

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 O2 Probe)

Two wires - O2 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.

 

 

 

1848

 

 

1848

 

1800

 

 

OHMS

 

 

 

 

@ 42.4

 

 

 

 

VDC

 

1500

 

 

 

(OHMS)

1000

 

OPERATING

 

 

 

 

LOAD

 

 

REGION

 

 

 

 

 

 

500

 

 

600

 

 

 

OHMS

 

 

 

 

 

250

 

 

@ 42.4

 

 

 

VDC

 

 

WITHOUT HART COMMUNICATOR

 

 

 

 

0

 

 

 

 

12.0 VDC

18 VDC

40 VDC @ ZERO LOAD

42.4 VDC

 

LIFT OFF

 

 

MAXIMUM

POWER SUPPLY VOLTAGE

29750007

Figure 1-4. Power Supply and Load Requirements

1-8 Description and Specifications

Rosemount Analytical Inc. A Division of Emerson Process Management

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Image 18
Emerson 3081FG instruction manual Ohms, Vdc, Operating Load Region, VDC @ Zero Load, Lift OFF Maximum Power Supply Voltage