fafnir SEPARIX-C L Plus, Technical Documentation Manual

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FAFNIR GmbH

Schnackenburgallee 149 c

22525 Hamburg

Tel.: +49 / (0)40 / 39 82 07-0

www.fafnir.de

info@fafnir.de
V Technical data
The following electrical input values apply to the sensors:
U
i
≤ 30 V
I
i
≤ 200 mA
P
i
≤ 1 W
The effective internal capacitance and inductance that are externally effective, are negligibly small. If the
sensors are supplied with integrated cable, then the electrical characteristics are:
C
c
= 200 pF /
m
L
c
= 1 µH /
m
L
c
/R
c
= 30 µH /
Ω
The sensors may be used in the following ambient temperature range:
T
a
= -40 °C … +110 °C
When using a sensor with overvoltage protection, the maximum temperature is +90 °C for the sensor
head.
General information (see also EN 60079-0, section 1):
Zone 0 exists only under atmospheric conditions:
Temperature range: -20 °C … +60 °C
Pressure range: 0.8 bar to 1.1 bar
Oxidants: Air (oxygen content approx. 21 %)
The sensors achieve a housing protection of:
Degree of protection: IP68
The following technical data apply to sensors with overvoltage protection:
The nominal DC spark-over voltage amounts to:
U = 350 V ± 20 %
The nominal impulse discharge current amounts to:
I = 20 kA (10 × Wave 8/20 µs)
The nominal alternating discharge current amounts to:
I = 20 A (10 × @ 50 Hz, 1 s)
The insulation resistance of an overvoltage arrester amounts to:
R > 10 GΩ
VI Specific conditions for use
1. Overfill Prevention Sensor and Level detectors with overvoltage protection do not comply with the
dielectric strength requirements according to EN 60079-11, section 6.3.13. When performing an in-
sulation test of the intrinsically safe circuit it is therefore necessary to disconnect the device.
2. When using the integrated overvoltage protection, integration into the equipotential bonding is re-
quired.