fafnir SEPARIX-Control CT Technical Documentation Manual page 34

General information (see also EN 60079-26, section 4.3):
Attention must be paid, if the sensor is installed in the separating wall between Zone 0 and Zone 1.
Then a protection class of at least IP66 or IP67 must be achieved after installation.
When wiring the sensor to the measuring transducer (preferably blue coloured cable), the approved
inductance and capacitance of the measuring transducer must not be exceeded.
The sensors have a two-pole screw or plug connection or cable tail. Attention does not need to be paid
to polarity.
The integration of the sensors without overvoltage protection into the equipotential bonding is not
required. For integration of the sensors with overvoltage protection into the equipotential bonding, a
PA terminal is provided.
III.d ... adjustment
No Ex-relevant adjustments are required for operation of the sensors.
III.e ... putting into service
Before putting into service, all devices must be checked of right installation and connection. The elec-
trical supply, as well as connected devices, must be checked.
III.f ... maintenance (servicing and emergency repair)
The sensors are generally maintenance-free. In case of a defect, the sensors must be sent back to the
manufacturer or one of its representations.
The sensors, in particular the probe tip, may be cleaned. Grease-dissolving cleansing agents can be used
to remove any firmly clinging grease or oil residues. Sharp-edged objects are unsuitable for the purpose
of cleaning since they could damage the sensor.
When performing an insulation test of the intrinsically safe circuit with 500 V under well-controlled con-
ditions, according to EN 60079-25, section 12 it is necessary to disconnect sensors with overvoltage
protection since there is no compliance with the requirements for dielectric strength according to
EN 60079-11, section 6.3.13. For all other sensors, there is compliance between the intrinsically safe
circuit and the chassis or, if present, other intrinsically safe circuits with 500 V
IV Equipment marking
1 Manufacturer:
2 Type designation:
3 Certificate number:
4 Ex marking:
81 D-Ex / 83 UV-... / LS 300 ... / SEPARIX-T ...
81 D-Ex U / LS 300 ...U...
LS 300 ... C
5 CE marking:
6 Technical Data:
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FAFNIR GmbH Schnackenburgallee 149 c

FAFNIR GmbH, 22525 Hamburg
81 D-Ex ... or 83 UV-... or LS 300 ... or SEPARIX-T ...
TÜV 00 ATEX 1656 X
II 1 G Ex ia IIC T4 Ga
II 1/2 G Ex ia IIC T4 Ga/Gb
II 1/2 G Ex ia IIC T4 Ga/Gb
II 1 G Ex ia IIB T4 Ga
II 1/2 G Ex ia IIB T4 Ga/Gb
0044
U 30 V
≤
i
I 200 mA
≤
i
P 1 W
≤
i
22525 Hamburg Tel.: +49 / (0)40 / 39 82 07-0
 
.
AC
www.fafnir.de info@fafnir.de
 