Fisher 244ER, 244EH Specifications, BASEFFA1 Intrinsically Safe Installation Entity Parameters

Rosemount Models 244EH and 244ER PC-Programmable Temperature Transmitters

SPECIFICATIONS

Old

New

BASEFFA(1) Intrinsically Safe Installation Entity Parameters:

Power Loop

Umax:in

30 V dc

30 V dc

Group II C

Imax:in

200 mA

200 mA

Wmax:in

1.0 W

1.0 W

0.67 W

Zones 0 and 1

•

T5 (– 40 ≤ Ta ≤ 40 °C)

•

•

T5 (– 60 ≤ Ta ≤ 40 °C)

• T6 (– 60 ≤ Ta ≤ 40 °C)

•

T4 (– 40 ≤ Ta ≤ 80 °C)

•

•

T4 (– 60 ≤ Ta ≤ 80 °C)

• T5 (– 60 ≤ Ta ≤ 50 °C)

Ceq

13.4 nF

10 nF

Sensor

Li

0 μH

0 μH

Uo

24.2 V dc

13.6 V dc

Io

33 mA

80 mA

Po

0.2 W

0.08 W

Cable Load

IIC

IIB

IIA

IIC

IIB

IIA

Co (μF)

0.2

0.6

1.6

0.7

5.1

18.5

Lo (mH)

31

93

248

5

23

48

Special Conditions for Safe Use: The apparatus must be installed such that its external terminals and

Special Conditions for Safe Use: The apparatus must be installed in an enclosure which

the communication pins are protected to at least IP20.

affords it a degree of protection of at least IP20. Non-metallic enclosures must have

a surface resistance of less than 1 GΩ, light alloy or zirconium enclosures must be

protected from impact and friction when installed.

CSA(2) Intrinsically Safe Installation Connection Parameters:

Class I

• 30 V or less, 330 ohms or more

T6 (– 50 ≤ Ta ≤ 40 °C)

• 30 V or less, 340 ohms or more

Div. 1

T5 (– 50 ≤ Ta ≤ 60 °C)

• 28 V or less, 300 ohms or more

T5 (– 50 ≤ Ta ≤ 60 °C)

• 28 V or less, 300 ohms or more

Groups A, B, C,

and D

• 25 V or less, 200 ohms or more

• 25 V or less, 240 ohms or more

• 22 V or less, 180 ohms or more

• 22 V or less, 190 ohms or more

T4 (– 50 ≤ Ta ≤ 80 °C)

• 30 V or less, 330 ohms or more

• 28 V or less, 250 ohms or more

• 25 V or less, 240 ohms or more

• 22 V or less, 190 ohms or more

Class I

• 30 V or less, 150 ohms or more

T4 (– 50 ≤ Ta ≤ 80 °C)

• 30 V or less, 230 ohms or more

Div. 1

• 28 V or less, 200 ohms or more

Groups C and D

• 25 V or less, 160 ohms or more

Factory Mutual(3)

Intrinsically Safe Installation

Entity Parameters:

Power Loop

Vi

30 V dc

30 V dc

Class I, II, and III

Ii

250 mA

240 mA

Pi

1.0 W

1.0 W

0.67 W

Div. 1

•

T5 (– 50 ≤ Ta ≤ 60 °C)

•

•

T5 (– 50 ≤ Ta ≤ 40 °C)

•

T6 (– 50 ≤ Ta ≤ 40 °C)

Groups A, B, C, D,

E, F, and G

•

•

T4 (– 50 ≤ Ta ≤ 80 °C)

•

T5 (– 50 ≤ Ta ≤ 50 °C)

Ci

0.008 μF

0.010 μF

Li

0 μH

0 μH

Sensor

Vt

10.7 V dc

13.6 V dc

It

15.3 mA

22 mA

Po

0.04 W

0.11 W

Ca

2.23 μF

0.8 μF

La

140 mH

60.0 mH

(1)For more information see approval certificate, Old: Model 644H: 95C2010X, Model 244E: 95C2019X; New: Model 644H: BAS00ATEX1033X, Model 244E: BAS00ATEX1034X

(2)For more information see Rosemount drawing 00644-1040, Rev. B (old) and 00644-1064, Rev AB (new).

(3)For more information see Rosemount drawing 00644-1056, Rev. B (old) and 00644-0009, Rev AA (new)

C-4