Dräger Polytron 8100, Instructions For Use Manual, Page: 251 / 254

Additional Approvals
Polytron 8100 251
The cable used in the system shall comply with the following parameters: - loop resistance R
C
15 Ohms/km to 150 Ohms/km,
- loop inductance L
C
0,4 mH/km to 1 mH/km,
- capacitance C
C
45 nF/km to 200 nF/km,
- maximum length of each spur cable 60 m in IIC and IIB, - maximum length of each trunk cable, including the length of all spurs, 1 km in IIC and 5 km in IIB
All intrinsically safe wiring shall be kept separate from non- intrinsically safe wiring. Refer to Article 504 of the National Electrical Code. Notes
1.
FISCO power supply must be installed as instructed by the Manufacturer´s Control Drawing.
2.
Selected FISCO power supply shall be intrinsically safe outputs for Class I, Div. 1, Groups A-D, Class II, Div. 1, Groups E-G.
3. The circuits are limited to overvoltage category I/II/III (non mains/mains circuits) as defined in IEC 60664-1. 4. This apparatus is suitable for use in a FISCO system in accordance to IEC 60079-25.
Key 1 Terminator
2 Power supply 3 Data 4 Hand held terminal 5 Field devices 6 Trunk 7 Spur
1
5
5
5
4
1
U
2
i
U
3
7
6
NON-HAZARDOUS AREA
HAZARDOUS AREA
Class I, Div. 1, Groups A, B, C, D Class II, Div. 1, Groups E, F, G
Ui
Ii
Pi Ci
Li
”
17,5V
”
0.380A
”
5.32W
”
5nF
”
10
—
H
Uo
”
Ui
Io
”
Ii
Po
”
Pi
Co
•
Ci + Cc
Lo
•
Li + Lc
• • •
+Cc +Lc
Intrinsically Safe Apparatus
Associated Apparatus
E/I/XTR 04/05
5
04
04
Drager Safety
without expressed written authority. All rights reserved.
Use of the document / contents is forbidden
Schutzvermerk ISO 16016 beachten.
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