Reference Manual

00809-0100-4728, Rev AA June 2011

Rosemount 644

Table B-3. Entity Parameters

 

 

 

 

 

 

 

 

 

Transmitter (I.S.)

Transmitter (FISCO)

Sensor

 

Ui = 30 Vdc

 

Ui = 17.5 Vdc

 

Uo = 13.9 Vdc

 

Ii = 300 mA

 

Ii = 380 mA

 

Io = 23 mA

 

Pi = 1.3 W

 

Pi = 5.32 W

 

Po = 79 mW

 

Ci = 2.1 nF

 

Ci = 2.1 nF

 

Ci = 7.7 nF

 

Li = 0 mH

 

Li = 0 mH

 

Li = 0 mH

N7

IECEx Type n

 

 

 

 

 

 

Certificate Number: IECEx BAS 07.0055

 

 

Ex nA nL IIC T5 (-40 °C Tamb 70 °C)

 

Table B-4. Electrical Data

 

 

 

 

 

 

 

 

 

Transmitter

 

Sensor

 

 

 

RTD

 

Thermocouple

 

 

Ui = 32 V

Ui = 5 V

 

Ui = 0

 

NG

IECEx Type n Component

 

 

 

Certificate Number: IECEx BAS 07.0054U

 

 

Ex nA nL IIC T5 (-40 °C Tamb 75 °C)

 

Schedule of Limitations:

The component must be housed in a suitably certified enclosure that provides a degree of protection of at least IP54.

B-5

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Image 67
Emerson 644 manual Table B-3. Entity Parameters, Transmitter I.S Transmitter Fisco Sensor, Transmitter Sensor