Rosemount 644

Reference Manual

00809-0100-4728, Rev AA June 2011

NC ATEX Type n Component

Certificate Number: BAS99ATEX3084U

ATEX Marking: II 3 G

Ex nL IIC T5 (-40 °C Tamb 70 °C)

Max Input Voltage: Ui = 42.4 Vdc

NOTE:

The equipment must be installed in an enclosure meeting the requirements of IP54 and the requirements of the impact tests described in EN50021.

ND ATEX Dust Ignition-Proof

Certificate Number: KEMA99ATEX8715X

ATEX Marking: II 1 D

tD A20 T95°C (-50 °C Tamb 85 °C) 1180

IP66

Special Conditions for Safe Use (X):

For information on the dimensions of the flameproof joints the manufacturer shall be contacted.

IECEx Certifications

E7 IECEx Flameproof and Dust

Certificate Number: IECEx KEM 09.0015X

Ex d IIC T6 (Flameproof)

Ex tD A20 IP 66 T 95 °C (Dust)

Vmax = 42.4 V

Special Conditions for Safe Use (X):

For information on the dimensions of the flameproof joints the manufacturer shall be contacted.

Table B-1. Electrical Data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transmitter

 

Sensor

 

 

 

 

Vmax = 32 Vdc

 

Umax = 5 Vdc

 

 

 

 

Imax = 12.0 mA

 

Imax = 2.0 mA

 

 

 

I7 IECEx Intrinsic Safety

 

 

 

 

 

 

Certificate Number: IECEx BAS 07.0053X

 

 

Ex ia IIC T4/T5/T6

 

 

 

 

 

Table B-2. Temperature Classification

 

 

 

 

 

 

 

 

 

 

Pi (W)

 

Temperature Class

Tamb

 

1.3

 

 

T4

-50 °C to 60 °C

 

5.32 (FISCO Group IIC)

 

T4

-60 °C to 80 °C

Special Conditions for Safe Use (X):

The apparatus must be installed in an enclosure which affords it a degree of protection of at least IP20.

Non-metallic enclosures must have a surface resistance of less than 1

G; light alloy or zirconium enclosures must be protected from impact and friction when installed.

B-4

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Emerson 644 manual IECEx Certifications, Temperature Class, To 60 C, Fisco Group IIC To 80 C