The following table describes the conditions for checking the maximum safe values for a simple,
intrinsically safe circuit:
Table 4-4 Rules for conguration
Relevant Standard / Conditions for Electrical Parameters Usable Sensors and Actuators
Standard: EN 60079-14
The following applies to the electrical parameters:
• U
0
≤U
i
• I
0
≤I
I
• P
0
≤P
i
• C
0
≥C
i
+C
cable
• L
0
≥L
i
+L
cable
The maximum safe values of the sensors and actuators
must be adapted to the maximum values of the electronic
modules. You will nd these maximum values
• in the Ex certicate of the sensors and actuators
• in the technical specications of the electronic modules
of the ET 200iSP
Modules
ET 200iSP
Encoders
Actuators
HART eld devi‐
ces
$BCMF
$BCMF
$
-
6
*
1
$
-
6
J
*
J
1
J
$
J
-
J
U
0
max. output voltage
I
0
max. output current
P
0
max. output power
C
0
max. external capacitance
L
0
max. external inductance
C
line
max. capacitance line/cable
L
line
max. inductance
U
i
max. input voltage
I
i
max. input current
P
i
max. input power
C
i
max. internal capacitance
liL
i
max. internal inductance
Safety information
Note
During the conguration you must observe the guidelines according to EN 60079‑14.
Congurations (principle)
4.4 Rules for operation in hazardous areas
ET 200iSP
Operating Instructions, 11/2022, A5E00247483-AK 69
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