Filter
Top Products
Rosemount Models 244EH and 244ER PC-Programmable Temperature Transmitters
C-4
SPECIFICATIONS
Old New
BASEFFA
(1)
Intrinsically Safe Installation Entity Parameters:
Power Loop U
max:in
30 V dc 30Vdc
I
max:in
200 mA 200 mA
Group II C
Zones 0 and 1
W
max:in
1.0 W 1.0 W 0.67 W
•T5(–40≤ T
a
≤ 40 °C) • • T5(–60≤ T
a
≤ 40 °C) •T6(–60≤ T
a
≤ 40 °C)
•T4(–40≤ T
a
≤ 80 °C) • • T4(–60≤ T
a
≤ 80 °C) •T5(–60≤ T
a
≤ 50 °C)
C
eq
13.4 nF 10 nF
L
i
0 µH 0 µH
Sensor U
o
24.2 V dc 13.6 V dc
I
o
33 mA 80 mA
P
o
0.2 W 0.08 W
Cable Load IIC IIB IIA
IIC IIB IIA
C
o
(µF) 0.2 0.6 1.6 0.7 5.1 18.5
L
o
(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 ita degreeof protection ofat least IP20. Non-metallic enclosures musthave
a surface resistance of less than 1 G
Ω
, light alloy or zirconium enclosures must be
protected from impact and friction when installed.
CSA
(2)
Intrinsically Safe Installation Connection Parameters:
Class I
Div. 1
Groups A, B, C,
and D
• 30 V or less, 330 ohms or more
T6 (– 50 ≤ T
a
≤ 40 °C)
• 30 V or less, 340 ohms or more
T5 (– 50 ≤ T
a
≤ 60 °C)
• 28 V or less, 300 ohms or more
T5 (– 50 ≤ T
a
≤ 60 °C)
• 28 V or less, 300 ohms or more
• 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 ≤ T
a
≤ 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
Div. 1
Groups C and D
• 30 V or less, 150 ohms or more
T4 (– 50 ≤ T
a
≤ 80 °C)
• 30 V or less, 230 ohms or more
• 28 V or less, 200 ohms or more
• 25 V or less, 160 ohms or more
Factory Mutual
(3)
Intrinsically Safe Installation Entity Parameters:
Power Loop V
i
30 V dc 30Vdc
I
i
250 mA 240 mA
Class I, II, and III
Div. 1
Groups A, B, C, D,
E, F, and G
P
i
1.0 W 1.0 W 0.67 W
•T5(–50≤ T
a
≤ 60 °C) • • T5 (– 50 ≤ T
a
≤ 40 °C) • T6 (– 50 ≤ T
a
≤ 40 °C)
• • T4 (– 50 ≤ T
a
≤ 80 °C) • T5 (– 50 ≤ T
a
≤ 50 °C)
C
i
0.008 µF 0.010 µF
L
i
0 µH 0 µH
Sensor
V
t
10.7 V dc 13.6 V dc
I
t
15.3 mA 22 mA
P
o
0.04 W 0.11 W
C
a
2.23 µF 0.8 µF
L
a
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)