airpower europe GmbH, Auf der Hohl 7, D-53547 Dattenberg,
www.airpower-gmbh.com
13
- have read and understood the user manual - be authorized by the plant operator
- be an electrician
- observe the usual regulations:
IEC 61241-11:2005, Electrical equipment for use in combustible dust - Part 11: Protection by intrinsically safety
IEC 60079-19:2019 Explosive Atmospheres - Part 19: Repair, Overhaul and Recovery of Equipment
IEC 60079-14:2013 Explosive Atmospheres - Part 14: Design, Selection and Installation of Electrical Systems
IEC 60079-17:2013 Explosive Atmospheres - Part 17: Inspection and Maintenance of Electrical Installations
IEC 60529-2013 Enclosure protection levels (IP code)
4.4.2 Connection of an intrinsically safe position controller
4.4.2.1 Electrical input connection (Fig. 4-8)
Type:
2-wire power supply
Input signal:
4 ... 20 mA
Min. working current:
3.8mA / DC
Input impedance: 455
Ω
@20mA (without HART)575
Ω
@20mA (with HART)
Non-hazardous area Zone 0, 1 or 2
Fig. 4-8 Electrical input connection
4.4.2.2 Electrical connection - digital
output
(binary) ( (Fig.4-9)
Working voltage: <15.5V DC
Output:
Digital feedback module
Output
Signal status "high" (Trigger)
≥2.1 mA
1
3
2
4
+
-
digital input
p ositioner
4~20mA DC
H A R T
Commu-
nicator
Sa fety b a rrier
D C S
I,V
A
E
Intrinsically safe
parameter
(1+ 2-):
Barrier requirement:
U
i
=28V
DC
I
i
=93mA
Pi =0.65W
C
i
=18n F
L
i
≈0
Uo ≤15.5V DC
Io ≤25mA
Po ≤96.9 mW
