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FAFNIR GmbH
Schnackenburgallee 149 c

Hamburg, Germany

Tel.: +49 / 40 / 39 82 07

–0

Fax: +49 / 40 / 390 63 39

E-

Web: www.fafnir.com

Содержание CONDURIX DU

Страница 1: ...FNIR GmbH Schnackenburgallee 149 c 22525 Hamburg Germany Tel 49 40 39 82 07 0 Fax 49 40 390 63 39 Technical Documentation CONDURIX The potentiometric level sensor Edition 2016 08 Version 9 Art no 2071...

Страница 2: ...I Table of Contents...

Страница 3: ...suring span at the level sensor 9 6 2 Current consumption in failure mode 10 7 Maintenance 11 7 1 Overhaul 11 7 2 Return shipment 11 8 Technical Data 12 9 List of figures 13 10 Annex 14 10 1 EC Declar...

Страница 4: ...d probe model CONDURIX DU or jacketed probe model CONDURIX MA are both compatible with non conductive containers The standard sensors work by outputting the measured fill level as an analogue value in...

Страница 5: ...served Do not change or modify the level sensor or add any equipment without the prior con sent of the manufacturer The installation operation and maintenance of the level sensor must be carried out o...

Страница 6: ...pulse generates a linear voltage drop 100 mV on the probe tube 6 electri cally insulated from tank potential The voltages at the bottom end and top end of the tube are measured As long as the probe tu...

Страница 7: ...nically isolating transformer The alternating voltage produced across the very low resistance probe tube is in the 100 mV range The table below shows the signal characteristics of the sensor as a func...

Страница 8: ...nly a short way the linearity of the measurement is affected by the short distance between the probe tube and reference potential A M X I R U D N O C CONDURIX DU 50 160 29 50 112 8 o n o M X I R U D N...

Страница 9: ...nce from reference potential is constant the measurement result is unaffected by the geome try of the tank While the second rod also adds to the stability of the mechanical design this does require a...

Страница 10: ...8 V in the event of maximum current consumption 21 5 mA To connect the level sensor see Figure 4 1 Unscrew cap 1 using an open ended spanner SW 19 2 Loosen union nut 2 of screwed cable gland 3 Figure...

Страница 11: ...ct the sensor head against the ingress of water An external cable diameter of 5 to 10 mm ensures reliable sealing of the cable gland Make sure that the cable gland is screwed tight and close the cap f...

Страница 12: ...imum distance is not observed the display direction of the level sensor will be reversed automatically The measured value would then be inverted Adjustment of the measuring span see Figure 5 Figure 5...

Страница 13: ...nting the level sensor from detecting levels correctly the sensor will enter failure mode after a short time Failure mode signalling conforms to the NAMUR NE43 recommendation The failure current is se...

Страница 14: ...be output correctly due to an insufficient supply voltage it enters failure mode and sets current consumption to 3 6 mA regardless of any failure current settings 7 Maintenance 7 1 Overhaul The level...

Страница 15: ...ial stainless steel Cable diameter 5 10 mm Temperature 40 85 C Probe tube Length 200 6 000 mm Diameter of single rod 6 mm Standard Standard material 1 4571 316Ti Optional material tantalum titanium Ha...

Страница 16: ...f figures 9 List of figures Figure 1 The CONDURIX level sensor 3 Figure 2 Measured value output 4 Figure 3 CONDURIX variants 5 Figure 4 Connecting the CONDURIX level sensor 7 Figure 5 Parametrisation...

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Страница 21: ...vided The process connection is done via a cutting ring fitting With limited mounting space the electronics may be installed in an external enclosure CONDURIX Ex external The connection to the sensor...

Страница 22: ...tached to the tank III d putting into service Before putting into service all devices must be checked to ensure it is properly connected and installed The power supply as well of the upstream devices...

Страница 23: ...egories can be found in the table Temperature class Tmedium or Tprobe tube Tmedium or Tprobe head Category 1 level sensor entirely erected in Zone 0 T6 20 C 45 C T5 T4 T3 T2 T1 20 C 60 C Category 1 2...

Страница 24: ...FAFNIR GmbH Schnackenburgallee 149 c 22525 Hamburg Germany Tel 49 40 39 82 07 0 Fax 49 40 390 63 39 E mail info fafnir com Web www fafnir com...