Emerson Rosemount 644h Manual descarregar pdf (Página 66)

C-6

Rosemount Inc

SPECIFICATIONS

Old New

BASEFFA

(1)

Intrinsically Safe Installation Entity Parameters:

Power

Loop

max:in

30 V dc 30 V dc

max:in

200 mA 200 mA

Group II

Zones 0

and 1

max:in

1.0 W 1.0 W 0.67 W

• T5 (– 40 ≤ T

≤

40 °C)

• T4 (– 40

≤ T

≤

80 °C)

• T5 (– 60 ≤ T

≤ 40 °C)

• T6 (– 40

≤ T

≤ 40 °C)

• T4 (– 40 ≤ T

≤

80 °C)

• T5 (– 60

≤ T

≤

50 °C)

13.4 nF 10 nF

0 µH 0 µH

Sensor U

24.2 V dc 13.6 V dc

33 mA 80 mA

0.2 W 0.08 W

Cable

Load

IIC IIB IIA

(µF) 0.2 0.

1.6 0.7 5.1 18.5

(mH) 31 93 248 52348

Special Conditions for Safe Use: The apparatus

must be installed such that its external

terminals and the communication pins are

protected to at least IP20.

Special Conditions for Safe Use: 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

Ω

, light alloy or zirconium enclosures must

be protected from impact and friction when

installed.

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Emerson Rosemount 644h Manual Página 66

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