Brochure/Catalogue

Temperature transducer
Temperature transducer
The ACT20X-HTI-SAO temperature transducer processes temperature signals from PT100 sensors and
thermocouples originating in the Ex zone. A current signal (mA) can also be connected as the input signal. The
input is part of an intrinsically safe circuit (Zone 0). The isolated milliamp analogue output is the input to the
receiver or controller in the safe area. It is available in a single-channel or double-channel version.
EX area Zone 0, 1, 2, 20, 21, 22 Safe area Zone 2 / FM Class 1, Division 2
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Ex label (excerp)
ATEX FM
U
o
/U
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8.7 V / 10 V
II 3 G Ex nA nC IIC T4 Installation in CL I DIV2 GP A-D T4
Kl. I-III ABT 1/2 GP A-G or
Kl. I Zn2 AEx/Ex nA nC [ia] IIC T4
I
o
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18.4 mA / 30 mA
II (1) G [Ex ia] IIC/IIB/IIA P
o
400 mW
II (1) D [Ex iaD] L
o
/R
o
/L
i
892 µH/Ω / 820 nH
Example: C
i
30 nF
IECEx ATEX version, IIC
C
o
= 5 µF, L
o
= 100 mH
Ex nA nC IIC T4 Gc Ex input Temperature, IIB C
o
= 50 µF, L
o
= 300 mH
[Ex ia Ga] IIC/IIB/IIA (More details in ATEX certicate)
IIA C
o
= 1000 µF, L
o
= 700 mH
Application example: temperature measurements in the Ex zone
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Accuracy / temperature coefficients
ACT20X-HTI-SAO
Input Accuracy Temperature
coefcient
Input mA ≤ ±4 μA ≤ ±4 μA / °C
Input RTD
Pt100 ≤ ±0.2 °C ≤ ±0.02 °C / °C
Ni100 ≤ ±0.3 °C ≤ ±0.03 °C / °C
Input TC
Type B ≤ ±4.5 °C ≤ ±0.45 °C / °C
Type E, J, K, L, N, T, U ≤ ±1 °C ≤ ±0.1 °C / °C
Type R, S, W3, W5, LR ≤ ±2 °C ≤ ±0.2 °C / °C
Note
\
%
Removable
terminals
(black)
LED green
= supply
Marker
Removable
terminals
(blue)
LED Channel 2
red = defective,
ashing = fault
LED Channel 1
red = defective,
ashing = fault
SIL
SUITABLE
61508
C.10 2729490000
Intrinsically safe signal converters – ACT20X
C