ELPRO 2420-EX, Руководство пользователя

Страница: 12 / 28

D-EZ-7003Bh
5. 2009AG
Seite - 12
ECOLOG Ex
Deutsch
English
4.7 Alarm Interface / Relay with Transformer Isolated Barrier
With the help of a 280X-C-Ex bracket and a transformer isolated barrier it is possible to set up an alarm
indication outside a hazardous area.
These kinds of application are permissible only with the transformer isolated barrier
mentioned above. If you are going to use different types of transformer isolated
barriers the legal requirements for an intrinsically safe application are not fulfilled
anymore.
Available as a pre assembled unit:
Part-No 2312
Consist of:
- Housing made of sheet steel
150*150*130mm
- Transformer isolated barrier
- Flash light
- Relay
- 24VDC Power supply unit
Hazardous area
Zone 1
Safe area
Cable type: Intrinsically safe
Cable color: Blue RAL 5015
max. length 5m
e.g. Dätwyler
Dataflex CY-EIG
2x2x0.75
brown
Logger TNx:
Bracket: 2804-C-Ex
Terminal 2: GND
Terminal 14: Alarm
Logger THx:
Bracket: 2805-C-Ex
Terminal 2: GND
Terminal 6: Alarm
Logger TPx:
Bracket: 2801-C-Ex
Terminal 2: GND
Terminal 14: Alarm
Power supply unitl
230VAC/24VDC
500mA
Relay 24VDC
white
-
+
Flash light 24V 7W
-
+
brown
1 2 3
7 8 9
white
Transformer Isolated Barrier
Fuchs
KFD2-SR2-Ex1.W
1
2
3
OUT CHK PWR
OUT: Alarm on
CHK: Lead breakage
PWR: Power supply 24VDC
ATTENTION: Interconnection Terminal 8 - 11
10 11 12
GND
D1
R2
R1
Alarm