Operating Instructions VEGAFLEX 67 -40 … +150 °C, PFA insulated 4 … 20 mA/HART - two-wire Document ID: 32303 Guided Microwave
Contents Contents 1 About this document 1.1 1.2 1.3 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .. .. .. .. .. .. .. 5 5 5 5 6 6 6 6 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .. .. 7 8 10 10 General instructions . . . . . . . . . . . . . . . . . . . . . . . . . Instructions for installation . . . . . . . . . . . . . . . . . . . . . 11 12 Structure . . . . . . . . . . . . . . . . . . Principle of operation . . . . . . . .
Contents 8 Maintenance and fault rectification 8.1 8.2 8.3 8.4 8.5 9 .. .. .. .. .. 39 39 40 41 42 Dismounting steps . . . . . . . . . . . . . . . . . . . . . . . . . . Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 43 Maintenance . . . . . . . . . . Remove interferences . . . . Exchanging the electronics Software update . . . . . . . . Instrument repair . . . . . . . ...... ...... module ...... ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 About this document 1 About this document 1.1 Function 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. 1.2 Target group This operating instructions manual is directed to trained qualified personnel.
2 For your safety 2 For your safety 2.1 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 VEGAFLEX 67 is a sensor for continuous interface measurement in liquids. You can find detailed information on the application range in chapter "Product description".
2 For your safety 2.5 Safety label on the instrument The safety approval markings and safety tips on the device must be observed. 2.6 CE conformity 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". 2.7 Fulfillment of NAMUR recommendations The device fulfills the requirements of the applicable NAMUR recommendations. 2.
3 Product description 3 Product description 3.
3 Product description l l l Serial number Technical data Article numbers, documentation With the serial number, you can access the delivery data of the instrument via www.vega.com, "VEGA Tools" and "serial number search". In addition to the type label outside, you can also find the serial number on the inside of the instrument. 3.2 Principle of operation Application range VEGAFLEX 67 is a level sensor with rod or cable probe for continuous interface measurement.
3 Product description 1 d2 d1 L2 h2 TS L1 h1 Fig. 2: Interface measurement 1 d1 d2 TS h1 h2 L1 L2 Output signal Reference plane Distance to the interface (HART value 1) Distance to the level (HART value 3) Thickness of the upper medium (d1 - d2) Height - Interface Height - Level Lower medium Upper medium The interface is processed directly by the sensor. The analogue output (4 … 20 mA) transmits the height of the interface (h1) in percent. This is also the value that is adjusted.
3 Product description The optional heating requires its own operating voltage. You can find details in the supplementary instructions manual "Heating for indicating and adjustment module". This function is generally not available for approved instruments. 3.3 Operation The instrument can be adjusted with the following adjustment media: l l l l With indicating and adjustment module with the suitable VEGA DTM in conjunction with an adjustment software according to the FDT/DTM standard, e.g.
4 Mounting 4 Mounting 4.1 General instructions Suitability for the process conditions Make sure that all parts of the instrument exposed to the process, in particular the sensor element, process seal and process fitting, are suitable for the existing process conditions. These include above all the 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 type label.
4 Mounting Fig. 3: Measures against moisture penetration Measuring range The reference plane for the measuring range of the sensors is the sealing surface of the thread or flange. Keep in mind that a min. distance must be maintained below the reference plane and possibly also at the end of the probe measurement in these areas is not possible (dead band). Particularly the cable length cannot be used all the way to the end because measurement in the area of the gravity weight is not possible.
4 Mounting keep in mind that measurement down to the tip of the probe is not possible. The exact value of the min. distance (lower dead band) is stated in chapter "Technical data". Fig. 4: Vessel with conical bottom Torque with PTFE plated flanges To compensate the normal bias voltage loss due to the seal materials, you have to use also disc springs in addition to the flange screws for fastening PTFE plated flanges. The flange screws of VEGAFLEX 67 must always be tightened with a torque of approx.
4 Mounting Fig. 5: Lateral load Extreme vibration caused by the system, e.g. due to agitators or turbulence in the vessel from inflowing medium, can cause the coax probe of VEGAFLEX 67 to vibrate in resonance. With coax probes of more than 1 m (3.281 in) length, you must secure the probe by fastening a suitable insulated brace or guy directly above the end of the rod. Fixing If there is a danger of the probe touching the vessel wall during operation due to product movements or agitators etc.
5 Connecting to power supply 5 Connecting to power supply 5.1 Preparing the connection Safety instructions Always keep in mind the following safety instructions: l l 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 Caution: No grease should be used when screwing the NPT cable gland or steel tube into the threaded insert. Standard grease can contain additives that corrode the connection between threaded insert and housing. This would influence the stability of the connection and the tightness of the housing. Cable screening and grounding If screened cable is necessary, connect the cable screen on both ends to ground potential.
5 Connecting to power supply 2 If an indicating and adjustment module is installed, remove it by turning it to the left. 3 Loosen compression nut of the cable entry 4 Remove approx. 10 cm (4 in) of the cable mantle, strip approx. 1 cm (0.
5 Connecting to power supply Electronics and connection compartment Display I²C 1 4 2 5 6 7 8 1 2 3 Fig. 7: Electronics and connection compartment, single chamber housing 1 2 3 4 Plug connector for VEGACONNECT (I²C interface) Spring-loaded terminals for connection of the external indication VEGADIS 61 Ground terminal for connection of the cable screen Spring-loaded terminals for voltage supply Wiring plan Display I2C 1 2 5 6 7 8 1 Fig.
5 Connecting to power supply Electronics compartment 1 Display I2C 1 2 5 6 7 8 2 3 Fig. 9: Electronics compartment, double chamber housing 1 2 3 Plug connector for VEGACONNECT (I²C interface) Internal connection cable to the connection compartment Terminals for VEGADIS 61 Display Connection compartment 2 1 1 2 I2C 3 32303-EN-120329 Fig.
5 Connecting to power supply Wiring plan I2C 1 2 1 Fig. 11: Wiring plan, double chamber housing 1 Voltage supply, signal output 5.5 Wiring plan, Ex-d double chamber housing Electronics compartment 1 Display I2C 1 2 5 6 7 8 2 3 Fig.
5 Connecting to power supply Connection compartment 1 1 2 2 Fig. 13: Connection compartment, Ex-d double chamber housing 1 2 Spring-loaded terminals for power supply and cable screen Ground terminal for connection of the cable screen Wiring plan 1 2 1 Fig.
5 Connecting to power supply 5.6 Wiring plan - version IP 66/IP 68, 1 bar Wire assignment connection cable 1 2 Fig.
6 Set up with the indicating and adjustment module PLICSCOM 6 Set up with the indicating and adjustment module PLICSCOM 6.1 Short description Function/Configuration The indicating and adjustment module is used for measured value display, adjustment and diagnosis.
6 Set up with the indicating and adjustment module PLICSCOM Fig. 16: Insert indicating and adjustment module Note: If you intend to retrofit the instrument with an indicating and adjustment module for continuous measured value indication, a higher cover with an inspection glass is required.
6 Set up with the indicating and adjustment module PLICSCOM 6.3 Adjustment system 2 1 1.1 3 Fig.
6 Set up with the indicating and adjustment module PLICSCOM 6.4 Setup steps Switch-on phase After connecting VEGAFLEX 67 to power supply or after a voltage recurrence, the instrument carries out a self-check for approx. 30 seconds: l l l Internal check of the electronics Indication of the instrument type, the firmware as well as the sensor TAGs (sensor designation) Output signal jumps briefly (approx.
6 Set up with the indicating and adjustment module PLICSCOM 1 ▶ 2 Move from the measured value display to the main menu by pushing [OK]. Basic adjustment Display Diagnostics Service Info Select the menu item "Basic adjustment" with [->] and confirm with [OK]. Now the menu item "Dielectric value" is displayed. Dielectric value Upper medium 000 3 Enter the dielectric figure (DK value) of the upper medium and confirm with [OK]. Save the settings with [OK] and move to "Min. adjustment" with [>]. Min.
6 Set up with the indicating and adjustment module PLICSCOM 3 Application Save the settings with [OK]. Each product has different reflective properties. In addition, there are various interfering factors which have to be taken into account: agitated product surfaces and foam generation (with liquids); dust generation, material cones and echoes from the vessel wall (with solids).
6 Set up with the indicating and adjustment module PLICSCOM Linearisation curve Linear Enter the requested parameters via the appropriate keys, save your settings and jump to the next menu item with the [->] key. Sensor-TAG In this menu item you can enter an unambiguous designation for the sensor, e.g. the measurement loop name or the tank or product designation.
6 Set up with the indicating and adjustment module PLICSCOM Copy sensor data This function enables reading out parameter adjustment data as well as writing parameter adjustment data into the sensor via the indicating and adjustment module. A description of the function is available in the operating instructions manual "Indicating and adjustment module".
6 Set up with the indicating and adjustment module PLICSCOM Function Reset value Display Distance Current output - characteristics 4 … 20 mA Current output - max. current 20 mA Current output - min. current 4 mA Current output - failure < 3.
6 Set up with the indicating and adjustment module PLICSCOM 6.5 Menu schematic Basic adjustment ▶ Basic adjustment Display Diagnostics Service Info 1 Upper medium 1.1 Dielectric figure of the upper medium enter/calculate Min. adjustment 0.00 % = 10.000 m(d) 8.000 m(d) 1.2 Linearisation curve Sensor-TAG 1.6 1.5 Linear Max. adjustment 100.00 % = 1.000 m(d) 2.000 m(d) 1.3 Scaling 2.3 1.
6 Set up with the indicating and adjustment module PLICSCOM Diagnostics ▶ Basic adjustment Display Diagnostics Service Info 3 Peak value 3.1.1 Interface Distance min.: 0.464 m(d) Distance max.: 5.385 m(d) Echo curve Peak value 3.1.2 Total level Distance min.: 0.234 m(d) Distance max.: 5.385 m(d) Sensor status 3.2 Curve selection 3.3 OK Echo curve False signal suppression 4.3 Current output 4.4 Characteristic: 4-20 mA ▼ Failure mode: 20.5 mA ▼ min. current: 4 mA ▼ max. current: 20.5 mA ▼ 3.
6 Set up with the indicating and adjustment module PLICSCOM Info ▶ Basic adjustment Display Diagnostics Service Info Instrument type Serial number 12345678 5 5.1 Calibration date 12. Dec. 2005 Software version 3.22 5.2 Last change using PC 04. March 2004 5.3 Sensor characteristics 5.
6 Set up with the indicating and adjustment module PLICSCOM 6.6 Saving the parameter adjustment data We recommended noting the adjusted data, e.g. in this operating instructions manual, and archiving them afterwards. They are thus available for multiple use or service purposes. If VEGAFLEX 67 is equipped with an indicating and adjustment module, the most important data can be read out of the sensor into the indicating and adjustment module.
7 Set up with PACTware and other adjustment programs 7 Set up with PACTware and other adjustment programs 7.1 Connect the PC VEGACONNECT directly on the sensor 2 1 3 Fig. 18: Connection of the PC via VEGACONNECT directly to the sensor 1 2 3 VEGACONNECT externally USB cable to the PC VEGACONNECT Sensor 1 2 EN CK LO OP TWIST USB 3 4 Fig. 19: Connection via VEGACONNECT externally 36 I²C bus (com.
7 Set up with PACTware and other adjustment programs Necessary components: l l l l VEGAFLEX 67 PC with PACTware and suitable VEGA DTM VEGACONNECT Power supply unit or processing system VEGACONNECT via HART 2 4 N OPE 3 USB TWIST LO CK 1 Fig.
7 Set up with PACTware and other adjustment programs All currently available VEGA DTMs are included as a DTM Collection on a CD. They can be purchased for a token fee from the responsible VEGA agency. In addition, the actual PACTware version is also available on this CD. In addition, this DTM Collection incl. the basic version of PACTware can be downloaded free of charge from the Internet. Move via www. vega.com and "Downloads" to "Software". 7.
8 Maintenance and fault rectification 8 Maintenance and fault rectification 8.1 Maintenance If the instrument is used properly, no special maintenance is required in normal operation. 8.2 Remove interferences Reaction when malfunctions occur The operator of the system is responsible for taking suitable measures to rectify faults. Failure reasons VEGAFLEX 67 offers maximum reliability. Nevertheless, faults can occur during operation. These may be caused by the following, e.g.
8 Maintenance and fault rectification Error Cause Rectification Operating voltage Check, adapt if necessary too low or load resistance too high Current signal Electronics moExchange the instrument or send it in greater than 22 mA dule in the sensor for repair or less than defective 3.6 mA In Ex applications, the regulations for the wiring of intrinsically safe circuits must be observed.
8 Maintenance and fault rectification In Ex applications only one instrument and one electronics module with respective Ex approval may be used. If there is no electronics module available on site, one can be ordered from the VEGA agency serving you. Sensor serial number The new electronics module must be loaded with the settings of the sensor. These are the options: l l At the factory by VEGA Or on site by the user In both cases, the sensor serial number is necessary.
8 Maintenance and fault rectification Load sensor software to PC At "www.vega.com/downloads" go to "Software". Select under "plics sensors and instruments", "Firmware updates" the respective instrument series and software version. Load the zip file via the right mouse key with "Save target as" e.g. on the desktop of your PC. Move with the right mouse key to the folder and select "Extract all". Save the extracted files, for example on the desktop.
9 Dismounting 9 Dismounting 9.1 Dismounting steps Warning: Before dismounting, be aware of dangerous process conditions such as e.g. pressure in the vessel, 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. 9.2 Disposal The instrument consists of materials which can be recycled by specialised recycling companies.
10 Supplement 10 Supplement 10.1 Technical data General data Material 316L corresponds to 1.4404 or 1.4435 Materials, wetted parts - Process fitting PFA and TFM PTFE 1600 - Rod: ø 10 mm (0.394 in) PFA and TFM PTFE 1600 - Cable: ø 4 mm (0.
10 Supplement - Rod: ø 10 mm (0.394 in) approx. 620 g/m (6.7 oz/ft) - Cable: ø 4 mm (0.157 in) approx. 80 g/m (0.86 oz/ft) - Gravity weight 325 g (11.5 oz) Insulation thickness - Rod version - Cable version 2 mm (0.08 in) 0.75 mm (0.03 in) On the gravity weight and beginning of the cable: 2 mm (0.08 in) Probe length L (from seal surface), cannot be shortened - Rod: ø 10 mm (0.394 in) up to 4 m (13.12 ft) - Trimming accuracy - rod < 1 mm (0.039 in) - Cable: ø 4 mm (0.
10 Supplement 1 1 4 2 4 2 3 3 5 5 Fig.
10 Supplement 1 10 9 8 7 6 5 4 3 2 26 m (85.31 ft) 25 m (82.02 ft) 24 m (78.74 ft) 23 m (75.46 ft) 22 m (72.18 ft) 21 m (68.91 ft) 20 m (65.62 ft) 19 m (62.34 ft) 18 m (59.06 ft) 17 m (55.77 ft) 16 m (52.49 ft) 15 m (49.21 ft) 14 m (45.93 ft) 13 m (42.65 ft) 12 m (39.37 ft) 11 m (36.09 ft) 0 10 m (32.82 ft) 1 2 Fig. 22: Relation dielectric figure (εr) of the upper medium to the max. probe length 1 2 Dielectric figure (εr) of the upper medium Max.
10 Supplement 1 d2 d1 L2 h2 TS L1 h1 Fig. 23: Interface measurement (interface is between L1 and L2) 1 d1 d2 TS h1 h2 L1 L2 Reference plane Distance to the interface (Primary Value) Distance to the level (3rd Value) Thickness of the upper medium (d1 - d2) Height - interface (Secondary Value) Height - level (4th Value) Lower medium Upper medium Resolution, digital > 1 mm (0.
10 Supplement considerably on the application. Hard and fast accuracy specifications are thus not available. see diagrams The accuracy values of the diagrams refer to the interface. Depending on the installation conditions, there can be deviations which can be rectified with an adaptation of the adjustment or a change of the measured value offset in the DTM service mode. Deviation L 15 mm (0.591") -10 mm (-0.394") 0 -10 mm (-0.394") 1 1 -15 mm (-0.591") 0,2 m (7.874") 0,35 m (13.78") 0,1 m (3.
10 Supplement L 15 mm (0.591") 10 mm (0.394") 0 -10 mm (-0.394") 1 1 -15 mm (-0.591") 0,2 m (7.874") 0,35 m (13.78") 0,05 m (1.969") 0,2 m (7.874") Fig. 25: Deviation VEGAFLEX 67 in cable version 1 L Dead zone - no measurement possible in this area Probe length Influence of the ambient temperature to the sensor electronics Temperature drift 0.03 %/10 K relating to the max. measuring range or max. 0.3 % Temperature drift - Digital output 3 mm/10 K relating to the max. measuring range or max.
10 Supplement 1 80 °C (176 °F) 60 °C (140 °F) 40 °C (104 °F) 20 °C (58 °F) -40 °C (-40 °F) 0 °C (32 °F) 50 °C (122 °F) 100 °C (212 °F) 150 °C (302 °F) 2 Fig. 26: Ambient temperature - Process temperature 1 2 Ambient temperature Process temperature (depending on the seal material) Electromechanical data - version IP 66/IP 67 and IP 66/IP 68; 0.2 bar Cable entry/plug3) - Single chamber housing l 1 x cable gland M20 x 1.5 (cable: ø 5 … 9 mm), 1 x blind stopper M20 x 1.
10 Supplement Spring-loaded terminals for wire cross-section < 2.5 mm² (AWG 14) Electromechanical data - version IP 66/IP 68 (1 bar) Cable entry - Single chamber housing - Double chamber housing Connection cable - Wire cross-section 1 x IP 68 cable gland M20 x 1.5; 1 x blind stopper M20 x 1.5 1 x IP 68 cable gland M20 x 1.5; 1 x blind stopper M20 x 1.5; 1 x blind stopper M16 x 1.5 0.5 mm² (AWG 20) - Wire resistance - Tensile strength < 1200 N (270 lbf) - Standard length 5 m (16.4 ft) - Max.
10 Supplement Permissible residual ripple - < 100 Hz - Uss < 1 V Uss < 10 mV 100 Hz … 10 kHz see diagram Load Ω 1000 750 3 500 2 1 250 4 14 16 18 20 22 24 26 28 30 32 34 36 V Fig.
10 Supplement 10.2 Dimensions The following dimensional drawings represent only an extract of the possible versions. Detailed dimensional drawings can be downloaded on www.vega.com under "Downloads" and "Drawings". Plastic housing ~ 69 mm (2.72") ø 79 mm (3.03") ~ 84 mm (3.31") ø 79 mm (3.31") 112 mm (4.41") 112 mm (4.41") M16x1,5 M20x1,5/ ½ NPT M20x1,5/ ½ NPT 1 1 2 2 Single chamber version Double chamber version Aluminium housing ~ 87 mm (3.43") ~ 116 mm (4.57") ø 86 mm (3.39") ø 86 mm (3.
10 Supplement Aluminium housing in protection rating IP 66/IP 68, 1 bar ~ 105 mm (4.13") ~ 150 mm (5.91") ø 84 mm (3.31") ø 84 mm (3.31") M20x1,5 120 mm (4.72") 116 mm (4.57") M16x1,5 M20x1,5 M20x1,5/ ½ NPT 1 1 2 2 Single chamber version Double chamber version Stainless steel housing ~ 69 mm (2.72") ø 79 mm (3.11") ~ 59 mm (2.32") ø 80 mm (3.15") ~ 87 mm (3.43") ø 86 mm (3.
10 Supplement 4 L 3 L L 71,4 mm (2.81") 70 mm (2.76") 69,4 mm (2.73") VEGAFLEX 67 115 mm (4.53") ø 4 mm (0.16") ø 20 mm (0.79") 1 ø 10 mm (0.39") 2 Fig.
10 Supplement 10.3 Industrial property rights VEGA product lines are global protected by industrial property rights. Further information see http://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 http://www.vega.com. Les lignes de produits VEGA sont globalement protégées par des droits de propriété intellectuelle.
10 Supplement 32303-EN-120329 58 VEGAFLEX 67 • 4 … 20 mA/HART - two-wire
32303-EN-120329 10 Supplement VEGAFLEX 67 • 4 … 20 mA/HART - two-wire 59
Printing date: 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.com ISO 9001 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.
