How to proceed if a repair is necessary ................15 Dismount..........................17 Dismounting steps......................17 Disposal ......................... 17 Supplement ..........................18 Technical data ........................ 18 Dimensions ........................19 Industrial property rights ....................20 Editing status: 2019-02-25 Conductive probe EL 4 •...
Symbols used Document ID This symbol on the front page of this instruction refers to the Docu- ment ID. By entering the Document ID on www.vega.com you will reach the document download. Information, tip, note This symbol indicates helpful additional information.
During work on and with the device, the required personal protective equipment must always be worn. Appropriate use The EL 4 is a sensor for point level detection. You can find detailed information about the area of application in chapter "Product description". Operational reliability is ensured only if the instrument is properly used according to the specifications in the operating instructions manual as well as possible supplementary instructions.
That is why we have introduced an environment management system with the goal of continuously improving company environmental pro- tection. The environment management system is certified according to DIN EN ISO 14001. Please help us fulfil this obligation by observing the environmental instructions in this manual: • Chapter "Packaging, transport and storage" • Chapter "Disposal" Conductive probe EL 4 •...
Housing lid • Housing • Process fitting with electrode Fig. 1: Conductive multiple rod electrode EL 4 Housing lid Housing 3 Process fitting To create a measuring system you need one conductive probe and a VEGATOR 131, 132, 256C, 631 or 632 signal conditioning instrument.
EL 4 is a point level sensor with partly insulated conductive electrode for level detection. EL 4 is very rugged and can be used in all areas of industrial process technology. The level switch can be used in conductive liquids such as e.g. water.
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Technical data - Ambient conditions" • Relative humidity 20 … 85 % Lifting and carrying With instrument weights of more than 18 kg (39.68 lbs) suitable and approved equipment must be used for lifting and carrying. Conductive probe EL 4 •...
Fig. 2: Measures against moisture ingress Transport Do not hold EL 4 on its electrode rods. Particularly with long rod ver- sions, the sensor can be damaged by the weight of the instrument. Pressure/Vacuum The process fitting must be sealed if there is gauge or low pressure in the vessel.
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Measuring probe Plastic sleeve at the probe end or laterally mounted Inflowing medium If EL 4 is mounted in the filling stream, unwanted false measurement signals can be generated. For this reason, mount EL 4 at a position in the vessel where no disturbances, e.g. from filling openings, agitators, etc., can occur. This applies particularly to instrument versions with a longer probe.
The supplementary electronics for line break monitoring is available in two different versions differing optically in the cable colours. • Cable colour red - in conjunction with a VEGATOR 632 signal conditioning instrument • Cable colour blue - in conjunction with a VEGATOR 131, 132, 631 signal conditioning instrument Conductive probe EL 4 •...
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Connection to terminal 1 (ground rod = longest rod) Connection to terminal 2 (max. rod = shortest rod) Additional electronics for line break monitoring If you are using a probe without additional electronics for line break monitoring, a fault signal will be triggered. Conductive probe EL 4 •...
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Keep in mind that in case of a fault signal also the switching output will be activated. Only failures of channel 1 are monitored. Take note of the operating instructions manual of the signal condition- ing instrument. Conductive probe EL 4 •...
6 Setup Setup General information You can find the setup procedure for EL 4 in the operating instructions manual of the corresponding signal conditioning instrument. Conductive probe EL 4 •...
24 hour service hotline Should these measures not be successful, please call in urgent cases the VEGA service hotline under the phone no. +49 1805 858550. The hotline is manned 7 days a week round-the-clock. Since we offer this service worldwide, the support is only available in the English language. The service is free, only standard call charges are incurred.
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7 Maintenance and fault rectification • Attach the completed form and, if need be, also a safety data sheet outside on the packaging • Please contact the agency serving you to get the address for the return shipment. You can find the agency on our home page www.vega.com. Conductive probe EL 4 •...
Pass the instrument directly on to a specialised recycling company and do not use the municipal collecting points. If you have no way to dispose of the old instrument properly, please contact us concerning return and disposal. Conductive probe EL 4 •...
-40 … +80 °C (-40 … +176 °F) Process conditions Process pressure -1 … 6 bar/-100 … 600 kPa (-14.5 … 87 psig) Process temperature EL 4 of 316L -20 … +100 °C (-4 … +212 °F) Conductance of the medium min. 7.5 µS/cm...
For that reason the associated approval documents of these instruments have to be carefully noted. They are part of the delivery or can be downloaded by entering the serial number of your instrument into the search field under www.vega.com as well as in the general download area. Dimensions 66mm (2.60")
Les lignes de produits VEGA sont globalement protégées par des droits de propriété intellec- tuelle. Pour plus d'informations, on pourra se référer au site www.vega.com. VEGA lineas de productos están protegidas por los derechos en el campo de la propiedad indus- trial. Para mayor información revise la pagina web www.vega.com.