Operating Instructions Capacitive double rod electrode for level measurement VEGACAL 69 For connection to a signal conditioning instrument Document ID: 31181
Contents Contents About this document 1.1 Function............................................................................................................................ 4 1.2 Target group...................................................................................................................... 4 1.3 Symbolism used................................................................................................................ 4 2 For your safety 2.1 Authorised personnel....................
Contents Supplementary documentation Information: Supplementary documents appropriate to the ordered version come with the delivery. You can find them listed in chapter "Product description". 31181-EN-130917 Instructions manuals for accessories and replacement parts Tip: To ensure reliable setup and operation of your VEGACAL 69, we offer accessories and replacement parts.
1 About this document 1 About this document 1.1 Function 1.2 Target group 1.3 Symbolism used This operating instructions manual provides all the information you need for mounting, connection and setup as well as important instructions for maintenance and fault rectification. Please read this information before putting the instrument into operation and keep this manual accessible in the immediate vicinity of the device. This operating instructions manual is directed to trained specialist personnel.
2 For your safety 2 2.1 For your safety Authorised personnel All operations described in this operating instructions manual must be carried out only by trained specialist personnel authorised by the plant operator. During work on and with the device the required personal protective equipment must always be worn. 2.2 Appropriate use VEGACAL 69 is a sensor for continuous level measurement. You can find detailed information on the application range in chapter "Product description".
2 For your safety 2.5 Safety label on the instrument 2.6 CE conformity 2.7 Safety instructions for Ex areas 2.8 Environmental instructions The safety approval markings and safety tips on the device must be observed. This device fulfills the legal requirements of the applicable EC guidelines. By attaching the CE mark, VEGA provides a confirmation of successful testing. You can find the CE conformity declaration in the download area of "www.vega.com".
3 Product description 3 Product description 3.
3 Product description 1 15 2 14 3 13 4 12 5 6 7 8 11 10 9 Fig.
3 Product description 1 2 3 Fig. 3: Functional principle - Plate capacitor 1 2 3 Distance between the electrode surfaces Size of the electrode surfaces Type of dielectric between the electrodes The two probes are the capacitor plates. The measured product is the dielectric. Due to the higher dielectric constant of the product compared to air, the capacitance increases as the material gradually covers the probe.
3 Product description Transport Transport must be carried out in due consideration of the notes on the transport packaging. Nonobservance of these instructions can cause damage to the device. Transport inspection The delivery must be checked for completeness and possible transit damage immediately at receipt. Ascertained transit damage or concealed defects must be appropriately dealt with.
3 Product description Flanges Screwed flanges are available in different versions according to the following standards: DIN 2501, EN 1092-1, BS 10, ANSI B 16.5, JIS B 2210-1984, GOST 12821-80. 31181-EN-130917 You can find additional information in the supplementary instructions manual "Flanges according to DIN-EN-ASME-JIS" (Document-ID 31088).
4 Mounting 4 Mounting 4.1 General instructions Suitability for the process Make sure that all parts of the instrument coming in direct contact conditions with the process, especially the sensor element, process seal and process fitting, are suitable for the existing process conditions, such as process pressure, process temperature as well as the chemical properties of the medium. You can find the specifications in chapter "Technical data" and on the nameplate.
4 Mounting instrument 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. 31181-EN-130917 Fig.
5 Connecting to power supply 5 Note safety instructions Connecting to power supply 5.1 Preparing the connection Always keep in mind the following safety instructions: • • Connect only in the complete absence of line voltage If overvoltage surges are expected, overvoltage arresters should be installed Tip: We recommend using VEGA overvoltage arresters B63-48 and ÜSB 62-36G.X.
5 Connecting to power supply suppressed, but the protective effect against high frequency interference signals remains. Connection cable for Ex applications Take note of the corresponding installation regulations for Ex applications. In particular, make sure that no potential equalisation currents flow over the cable screen. In case of grounding on both sides this can be achieved by the use of a capacitor or a separate potential equalisation. 5.2 Connection procedure Proceed as follows: 1.
5 Connecting to power supply 5.3 Housing overview Wiring plan, single chamber housing The following illustrations apply to the non-Ex as well as to the Ex-ia version. 5 5 1 5 5 2 3 4 Fig. 7: Material versions, single chamber housing 1 2 3 4 5 Plastic Aluminium Stainless steel, investment casting Stainless steel, electro-polished Filter element for air pressure compensation of all material versions.
5 Connecting to power supply Wiring plan 1 2 1 Fig. 9: Wiring plan, single chamber housing 1 Wire assignment, connection cable Voltage supply/Signal output 5.4 Wiring plan - version IP 66/IP 68, 1 bar 1 2 Fig.
6 Setup with a signal conditioning instrument 6 Function/Configuration Setup with a signal conditioning instrument 6.1 General information During setup, the probe must be calibrated with the medium that will later be measured. To adjust the probe, open the housing cover. You can select the sensitivity range on the electronics module by means of the measuring range selection switch.
6 Setup with a signal conditioning instrument General information 6.3 Continuous level measurement Continuous measurement requires a constant dielectric value, i.e. the measured product should have constant properties. Select the stage with the measuring range selection switch on the electronics module of the probe according to the following chart. Look in the row that corresponds to your product and select an appropriate range according to the length of your probe.
6 Setup with a signal conditioning instrument 1. If the indication cannot be set to 100 %, proceed as follows: 2. If the indication does not reach 100 %, you have to set the range selection switch on the probe one stage lower. 3. If the indication exceeds 100 % and cannot be reset, you have to set the range selection switch of the probe to the next higher stage. In both cases you have to repeat the adjustment.
7 Maintenance and fault rectification 7 Maintenance and fault rectification 7.1 Maintenance 7.2 Rectify faults If the instrument is used properly, no special maintenance is required in normal operation. Reaction when malfunctions occur The operator of the system is responsible for taking suitable measures to rectify faults. Failure reasons VEGACAL 69 offers maximum reliability. Nevertheless, faults can occur during operation. These may be caused by the following, e.g.
7 Maintenance and fault rectification Check the resistance in the probe Error Cause Rectification Current signal >22 mA Probe insulation damaged, shortcircuit due to permeating, conductive medium Exchange the instrument or send it in for repair Shortcircuit in the probe, e.g. because of moisture in the housing Remove the electronics module. Check the resistance between the marked plug connections. See the following instructions.
7 Maintenance and fault rectification • CL-E60ZX (without approvals) 7.4 How to proceed in case of repair You can find a repair form as well as detailed information on how to proceed under www.vega.com/downloads and "Forms and certificates". By doing this you help us carry out the repair quickly and without having to call back for needed information.
8 Dismounting 8 Dismounting 8.1 Dismounting steps Warning: Before dismounting, be aware of dangerous process conditions such as e.g. pressure in the vessel or pipeline, high temperatures, corrosive or toxic products etc. Take note of chapters "Mounting" and "Connecting to power supply" and carry out the listed steps in reverse order. 8.2 Disposal The instrument consists of materials which can be recycled by specialised recycling companies.
9 Supplement 9 Supplement 9.1 Technical data General data Material 316L corresponds to 1.4404 or 1.4435 Materials, wetted parts ƲƲ Process fitting - flange ƲƲ insulation (fully insulated) Materials, non-wetted parts FEP ƲƲ Probe - double rod fully insulated: ø 14 mm (0.
9 Supplement Measuring range ƲƲ range 1 0 … 120 pF ƲƲ range 3 0 … 3000 pF ƲƲ range 2 0 … 600 pF Measuring frequency 430 kHz Accuracy (according to DIN EN 60770-1) Reference conditions according to DIN EN 61298-1 ƲƲ Temperature +18 … +30 °C (+64 … +86 °F) ƲƲ Air pressure 860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig) ƲƲ Relative humidity 45 … 75 % Temperature error ƲƲ < 120 pF < 1 pF ƲƲ > 120 pF 1 % of the current measured value Linearity error < 0.
9 Supplement 1 2 1 2 0 0°C 45°C 60°C -1 Fig. 14: Process pressure - Process temperature (flange of PP) 1 2 Process pressure Process temperature Dielectric constant ≥ 1.5 Electromechanical data - version IP 66/IP 67 and IP 66/IP 68; 0.2 bar Cable entry/plug2) ƲƲ Single chamber housing –– 1 x cable gland M20 x 1.5 (cable: ø 5 … 9 mm), 1 x blind plug M20 x 1.
9 Supplement Ω 1000 750 2 500 1 250 3 12 14 16 18 20 22 24 26 28 30 32 34 36 V Fig.
9 Supplement 9.2 Dimensions Housing in protection IP 66/IP 67 and IP 66/IP 68; 0.2 bar ~ 69 mm (2.72") ø 79 mm (3.11") M20x1,5/ ½ NPT 1 ø 86 mm (3.39") 116 mm (4.57") 112 mm (4.41") 112 mm (4.41") M20x1,5/ ½ NPT ~ 116 mm (4.57") 117 mm (4.61") ~ 59 mm (2.32") ø 80 mm (3.15") ~ 69 mm (2.72") ø 79 mm (3.03") 2 M20x1,5 M20x1,5/ ½ NPT M20x1,5/ ½ NPT 3 4 Fig. 16: Housing versions in protection rating IP 66/IP 67 and IP 66/IP 68, 0.
L 25 mm (0.98") 87,5 mm (3.45") 9 Supplement ø 14 mm (0.55") 47 mm (1.85") Fig.
9 Supplement 9.3 Industrial property rights VEGA product lines are global protected by industrial property rights. Further information see www.vega.com. Only in U.S.A.: Further information see patent label at the sensor housing. VEGA Produktfamilien sind weltweit geschützt durch gewerbliche Schutzrechte. Nähere Informationen unter www.vega.com. Les lignes de produits VEGA sont globalement protégées par des droits de propriété intellectuelle. Pour plus d'informations, on pourra se référer au site www.
All statements concerning scope of delivery, application, practical use and operating conditions of the sensors and processing systems correspond to the information available at the time of printing. Subject to change without prior notice © VEGA Grieshaber KG, Schiltach/Germany 2013 VEGA Grieshaber KG Am Hohenstein 113 77761 Schiltach Germany Phone +49 7836 50-0 Fax +49 7836 50-201 E-mail: info.de@vega.com www.vega.
