Operating instructions

134
Verification of Intrinsic Safety
2
Blatt
Page
8
von
of
Maßstab /
Scale
---
FCT01-X.. /
Ausgabe / Revision
01
Freigabe
Released by
Geprüft
Reviewed by
Erstellt
Written by
25.08.05
25.08.05
25.08.05
Datum
Date
Klausgrete
Klausgrete
Klausgrete
Name
Material
65638-099-60-A4
Benennung / Title
Änderung / Alteration
---
Zeichnungs-Nr. / Drawing number
Hazardous area
Zones: 1, 2
Gas: IIC T4
FCT01-X..
II 2 G EEx ib IIC T4
Circuit: Sensor Output
Vo 12.6 V
Io 304 mA
Po 1.96 W (FCT01-X)
1)
1.34 W (FCT01-XV1)
2)
Co 400 nF
Lo 230 µH
Vi 13 V
Ii 483 mA
Pi 2.0 W
Ci 4 nF
Li 6 µH
Maximum values for 6- or 8-wire shielded cable:
Length C (wire/wire) L
100 m 500 nF/km 1000 µH/km
150 m 350 nF/km 720 µH/km
200 m 270 nF/km 550 µH/km
The resistance of each wire must be < 13 ohms
(for operating reasons):
0.14 mm²: cables up to 90 m
0.25 mm²: cables up to 150 m
0.50 mm²: cables up to 320 m
Recommended type: LiYCY 6 x 0.5 mm² up to 150 m
If you use a cable longer than 50 m, the shield of the cable
may not be connected to the housing of the weighing platform,
or the weighing platform and indicator must be connected to
each other to ensure low resistance (e.g. by connecting a
equipotential bonding conductor).
Weighing Platform Connection
Alternative
connection
1: For thermal protection, the sensor output current is limited to 213 mA.
2: For thermal protection, the sensor output current is limited to 106 mA.
Weighing platform
CAPXS.-......-....
II 2 GD EEx ib IIC T4
T135°C...155°C
Weighing platform
IFXS4-...... and IUXS4-......
II 2G 1D EEx ib IIC T4
T155°C
Vi 13 V
Ii 425 mA
Pi 2.0 W
Ci 4 nF
Li 6 µH