fafnir TORRIX XTS Series, Техническая документация инструкция

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FAFNIR GmbH
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Schnackenburgallee 149 c
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22525 Hamburg
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Tel.: +49 / (0)40 / 39 82 07-0
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www.fafnir.de
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info@fafnir.de
Instructions in accordance with directive 2014/34/EU TÜV 99 ATEX 1496 X
Filling Level Sensors type VISY Stick … and type TORRIX Ex… Version: 02.2023
I Range of application
The filling level sensors are designed for continuous measurement of liquid levels. Floats are used to measure the
liquid levels. These slide on a sensor tube. For interface or water detection, a second float can be mounted on the
sensor tube. In addition, the density of the liquid can be determined via a density module. The temperature measuring
chain VISY-Stick ... Temp ... is used to measure temperatures at different heights and does not use any floats.
The power supply for the devices VISY-Stick
… and the forwarding of the measured data to a superordinate evaluation
system is provided by isolating amplifier VP- … or VPI or, in the case of the sensor VISY -Stick … TLS, e. g. by the TLS - …
console from Veeder-Root. If an RS-485 interface is used, the sensor VISY-Stick … RS485 can be used.
The filling level sensors TORRIX Ex … can be produced with different interfaces. These are, for example, interfaces
"4 … 20 mA" (TORRIX Ex … and TORRIX Ex C…), "RS -485" (TORRIX Ex RS485…) or TAG (TORRIX Ex TAG…). The TORRIX
Ex... XT... level sensors can be operated either on a 4 ... 20 mA or RS 485 interface. The filling level sensors
TORRIX Ex
SC… are connected to the isolating amplifier VP - … or VPI.
II Standards
The device is designed according to the following European standards
EN IEC 60079-0:2018 Equipment – General requirements
EN 60079-1:2014 Equipment protection by flameproof enclosures "d"
EN 60079-11:2012 Equipment protection by intrinsic safety "i"
EN 60079-26:2015 Equipment with Equipment Protection Level (EPL) Ga
EN 60079-31:2014 Equipment dust ignition protection by enclosure “t”
III Instructions for safe …
III.a … use
The approval applies to equipment types VISY-Stick … and TORRIX Ex…
The devices are designed either as intrinsically safe equipment or as flameproof enclosures resp. protection by en-
closures with an intrinsically safe part and are suitable for use in potentially explosive atmospheres. The "advanced"
(TORRIX Ex
… -A, VISY-Stick Advanced … ) and "flexible" filling level sensors (TORRIX Ex … Flex, VISY-Stick … Flex … ) as
well as types with plastic coating against very aggressive media (TORRIX Ex… PL) can be used for all gases of groups
IIA and IIB. The temperature measuring chain VISY-Stick … Temp … and all other filling level sensors can be used for
all gases of groups IIA, IIB and IIC. In addition, all devices can be used for dust groups IIIA, IIIB and IIIC.
With the level sensor in flameproof enclosure respectively with protection by enclosure (TORRIX Exd
…) there is the
possibility of using a heater for the display when used in very low ambient temperatures.
To use a non-conductive plastic floats in potentially explosive areas with gases of group IIC the hazard of static
charging must be prevented. Here a few conditions need to be observed:
•
The use of the float in strongly flowing, non-conductive liquids is forbidden;
•
There must be no agitator/mixer in the tank;
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Frictions on non-conductive components are to be avoided;
•
The float must not be cleaned in a dry state.
The materials of the sensors that come into contact with the media must be resistant to these media.