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Reference Manual
00809-0100-4728, Rev AA
June 2011
Rosemount 644
B-4
NC ATEX Type n Component
Certificate Number: BAS99ATEX3084U
ATEX Marking: II 3 G
Ex nL IIC T5 (-40 °C T
amb
70 °C)
Max Input Voltage: U
i
= 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 T
amb
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.
I7 IECEx Intrinsic Safety
Certificate Number: IECEx BAS 07.0053X
Ex ia IIC T4/T5/T6
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.
Table B-1. Electrical Data
Transmitter Sensor
V
max
= 32 Vdc U
max
= 5 Vdc
I
max
= 12.0 mA I
max
= 2.0 mA
Table B-2. Temperature Classification
P
i (W)
Temperature Class T
amb
1.3 T4 -50 °C to 60 °C
5.32 (FISCO Group IIC) T4 -60 °C to 80 °C