Approval/Certificate/Document of Conformity

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SCHEDULE
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to EU-Type Examination Certificate KEMA 10ATEX0020X Issue No. 3
Page 2/3
Form 227A
Version 1 (2016-04)
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Description
Temperature / mA Converters Type ACT20X-HTI-SAO-S, Type ACT20X-HTI-SAO-P and Type
ACT20X-2HTI-2SAO-S and ACT20X-2HTI-2SAO-P), for rail mounting are 24 V powered 1
channel (Type ACT20X-HTI-SAO-S and Type ACT20X-HTI-SAO-P) or 2 channel (Type ACT20X-
2HTI-2SAO-S and Type ACT20X-2HTI-2SAO-P) isolating barriers, interfacing temperature
sensors or current sources located in a hazardous area.
Ambient temperature range -20 °C to +60 °C.
Marking
The equipment marking may additionally include the code II 3 G Ex nA nC IIC T4 Gc.
Electrical data
Supply (terminals 51, 52): U = 19,2 ... 31,2 Vdc.
Outputs (terminals 41, 42 and 43, 44): I = 0 ... 20 mA or 4 ... 20 mA
Status output (terminals 53, 54):
Relay contacts, U ≤ 32 Vdc or 32 Vac, I ≤ 1 Adc or I ≤ 0.5 Aac respectively.
If the Temperature / mA Converter is installed outside the hazardous area, the following data for
the relay contacts apply: U ≤ 110 Vdc or 125 Vac, I ≤ 0,3 Adc or I ≤ 0,5 Aac respectively.
For all circuits above: U
m
= 253 Vac (max. frequency 400 Hz).
Sensor circuits (terminals 11 ... 14 respectively 21 ... 24):
in type of protection intrinsic safety Ex ia IIC/IIB/IIA/IIIC/I, with following maximum values:
U
o
= 8,7 V; I
o
= 18,4 mA; P
o
= 40 mW; C
o
= 5 µF (IIC) or 50 µF (IIB) or 1000 µF (IIA);
L
o
= 100 mH (IIC) or 300 mH (IIB) or 700 mH (IIA); L
o
/R
o
= 892 µH/Ω (all groups);
U
i
= 10 V; I
i
= 30 mA; C
i
= 30 nF; L
i
= 820 nH.
for group IIIC, the parameters of group IIB apply;
for group I, the parameters of group IIA apply.
Sensor circuits, when combined to one circuit (terminals 11 ... 14 and 21 ... 24):
in type of protection intrinsic safety Ex ia IIC/IIB/IIA/IIIC/I, with following maximum values:
U
o
= 17,4 V; I
o
= 18,4 mA; P
o
= 80 mW; C
o
= 0,3 µF (IIC) or 1,6 µF (IIB) or 8 µF (IIA);
L
o
= 80 mH (IIC) or 250 mH (IIB) or 600 mH (IIA); L
o
/R
o
= 445 µH/Ω (all groups);
U
i
= 10 V; I
i
= 30 mA; C
i
= 15 nF; L
i
= 1,7 µH.
for group IIIC, the parameters of group IIB apply;
for group I, the parameters of group IIA apply.
The intrinsically safe output circuits are infallibly galvanically isolated from the non-intrinsically
safe circuits, and from each other if applicable.
Installation instructions
The instructions provided with the product shall be followed in detail to assure safe operation.