Operating Instructions
Contents
1. p A 6 Setup VEEA 6 Set up 6 1 Adjustment system t mr umm Eee OO ig in socket 600 1 TEST e D i 0 10V e oss B mugs e O on DIODI eooooQ 9 10 12 13 14 9 10 12 13 14 Fig 9 Indicating and adjustment elements 1 Control lamp Fault signal LED red 2 Potentiometer for switching point adjustment 3 Control lamp Output LED yellow 4 Control lamp Power supply LED green 5 Bridge for adjusting the fault signal 6 Terminals for probe 7 Function coding Ex version 8 Instrument coding 9 Sockets for bridges 10 Transistor output 11 Relay output 12 Power supply 18 VEGATOR 631 Ex Signal conditioning instrument 0 1L060 N3 0tbv c 23440 EN 090130 Control lamps 6 Set up 12 sect 6 co off 2 a 1 A B Y VEGA TOR 631 EX CE aJa 20 60jC IP 30 Insp g power supply max 250VAC 20 250 VAC Temi Po minimum Fig 10 Indicating and adjustment elements 1 2 3 DIL switch block Type label Transparent cover 6 2 Adjustment elements Control lamps LED in the front plate indicate operation switching status and fault signal Green Operating control lamp Mains voltage on instrument is operating Red Failure lamp2. Fig 15 Mode B Dry run protection Means with covered max electrode e Relay energises connection 12 14 is connected through relay e Transistor output is conductive e Control lamp Output lights Means with uncovered max electrode level detection or min electrode two point control e Relay deenergises connection 12 13 is connected through relay e Transistor output blocks e Control lamp Output extinguishes 6 3 Switching point adjustment Note Keep in mind for all switching point adjustments that between the momenet when the switching point is reached and the momenet when the switching function is triggered there is an integration time of 0 5 sec The potentionmeter must therefore be turned slowly A possible additional integration time should only be switched on after the adjustment In all following applications in conjunction with an integrated resistor of 220 kQ line monitoring of the ground and max electrode is ensured Set the mode selection switch to mode A Connect the signal conditioning instrument to power supply Turn the potentiometer to position O Fill the vessel until the max electrode is covered approx 1 cm by the product e Turn the potentiometer slowly clockwise until the yellow signal lamp extinguishes VEGATOR 631 Ex Signal conditioning instrument 23 6 Setup VEBA Level detection for min signal Two point control min max
3. 004 26 7 3 Instrument repair llle 27 8 Dismounting 8 1 Dismountingsteps 0004 28 8 2 Disposal ses e daa Sette ex ehe 28 9 Supplement 9 1 Technical data lllll eee 29 2 VEGATOR 631 Ex Signal conditioning instrument 0 1060 N3 0tbv c 23440 EN 090130 VEBA Contents Supplementary documentation Information Supplementary documents appropriate to the ordered version come with the delivery You can find them listed in chapter Product description pue VEGATOR 631 Ex Signal conditioning instrument 3 1 About this document Wale 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 The contents of this manual should be made available to these personnel and put into practice by them 1 3 Symbolism used Information tip note This symbol indicates helpful additional information Caution If this warning is ignored faults or malfunctions can result Warning If this warning is ignored injury to persons and or serious
4. mode A overfill protection Two point control min max mode B dry run protection The max electrode is now adapted to the conductivity of the medium i e the relay deenergises at max level and the transistor blocks Set the mode selection switch to mode B Connect the signal conditioning instrument to power supply Turn the potentiometer to position 10 Empty the vessel until the min electrode is covered approx 1 cm by the product e Turn the potentiometer slowly anticlockwise until the yellow signal lamp extinguishes The min electrode is now adapted to the conductivity of the medium i e the relay deenergises at min level and the transistor blocks At first connect only ground and max electrode to the signal conditioning instrument terminals 1 and 3 Set the mode selection switch to mode A Connect the signal conditioning instrument to power supply Turn the potentiometer to position O Fill the vessel until the max electrode is covered approx 1 cm by the product Turn the potentiometer slowly clockwise until the yellow signal lamp extinguishes e Connect the min electrode to terminal 2 of the signal conditioning instrument The two point control is now adapted to the conductivity of the medium i e the relay deenergises at max level and the transistor blocks This switching condition remains until the level falls below the position of the min electrode i e the relay energizes at min level and the
5. 1 2 3 Ex separating chamber with Ex version Terminal socket Transparent cover The type label contains the most important data for identification and use of the instrument Article number Serial number Technical data Article numbers documentation VEGATOR 631 Ex Signal conditioning instrument 7 3 Product description VEBA Application area Functional principle Power supply Packaging Transport Transport inspection The serial number allows you to access the delivery data of the instrument via www vega com VEGA Tools and serial number search 3 2 Principle of operation VEGATOR 631 Ex is a single signal conditioning instrument for processing the signals of conductive probes The VEGATOR 631 Ex signal conditioning instrument powers connected sensors and simultaneously processes their measuring signals When the medium reaches the switching point of the sensor the voltage between sensor and VEGATOR 631 Ex drops The output relays then switch according to the set mode Detailed information about the power supply can be found in chapter Technical data 3 3 Operation The integration time and the mode A B can be preset via a DIL switch block on the signal conditioning instrument A potentiometer for adjustment the switching point is located on the front panel of VEGATOR 631 Ex 3 4 Packaging transport and storage Your instrument was protected by packaging during transport Its c
6. Fault on the sensor circuit due to sensor failure or line break The relay deenergises in case of failure Yellow Relay control lamp The yellow relay control lamp reacts depending on the set mode A B VEGATOR 631 Ex Signal conditioning instrument 19 6 Setup Wale Potentiometer for switching point adjust ment DIL switch block Generally the relay control lamp shows the activated energized condition of the relay AA dark relay control lamp means that the relay is deenergised transistor blocks A potentiometer for switching point adaptation is located on the front plate of the signal conditioning instrument With this potentiometer you can adapt the measuring system to the conductivity of the product On top to the side covered when mounted there is a DIL switch block with four switches The individual switches are assigned as follows e 1 A B mode A Max detection or overflow protection B Min detection or dry run detection e 2 Integration time 2 s e 3 Integration time 6 s e 4 Integration time 12 s With switch 1 you can adjust the mode A overfill protection or B dry run protection 98S v e 9 eL eol S ag yo Fig 11 DIL switch block In the example see previous illustration mode A max detection or overfill protection is selected switch 1 The integration time is set to 8 seconds switch
7. cover Housing IP 65 Mounting 4 Mounting 4 1 General instructions VEGATOR 631 Ex signal conditioning instrument with plug in socket for mounting on carrier rail according to EN 50022 The front plate of VEGATOR 631 Ex can be provided with a lead sealable transparent cover to protect the instrument against unau thorised or inadvertent adjustment See the following figure on how to remove the transparent cover Fig 2 Removing the transparent cover For moisture protected mounting outside the switching cabinet we offer an insulated protective housing with transparent cover IP 65 for surface mounting In this housing you can mount a maximum of 3 instruments of 36 mm width 4 2 Mounting instructions The plug in socket is constructed for carrier rail mounting according to EN 50022 Power supply is connected to terminals 9 and 10 For neighbouring signal conditioning instruments it is possible to continue connection L1 and N directly via the supplied bridges 10 VEGATOR 631 Ex Signal conditioning instrument 0 1060 N3 0tbv c 23440 EN 090130 4 Mounting Ex separating chamber Instrument coding Danger The bridges must never be used with single instruments or at the end of a row of instruments If this rule is not heeded there is a danger of coming into contact with the operating voltage or causing a short circuit A VEGATOR 631 Ex in Ex version is an auxiliary
8. damage to the instrument can result Danger If this warning is ignored serious injury to persons and or destruction of the instrument can result Ex applications This symbol indicates special instructions for Ex applications List The dot set in front indicates a list with no implied sequence Action This arrow indicates a single action Sequence Numbers set in front indicate successive steps in a procedure VEGATOR 631 Ex Signal conditioning instrument 0 1L060 N3 0tbv c 23440 EN 090130 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 VEGATOR 631 Ex is a universal signal conditioning instrument for connection of a level switch You can find detailed information on the application range 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 For safety and warranty reasons any invasive work on the device beyond that described in the operating instructions manual may be carried out only by personnel authorised by the manufacturer Arbitrary c
9. practical use and operating conditions of the sensors and processing systems correspond to the information avail able at the time of printing VEGA Grieshaber KG Schiltach Germany 2009 Subject to change without prior notice 23440 EN 090130
10. reliability is ensured Nevertheless faults can occur during operation These may be caused by the following e g e Measured value from sensor not correct e Power supply e Interference on the cables The first measure to be taken is to check the input and output signals The procedure is described as follows In many cases the causes can be determined this way and faults can be easily rectified However should these measures not be successful call the VEGA service hotline in urgent cases under the phone no 49 1805 858550 The hotline is available to you 7 days a week round the clock Since we offer this service world wide the support is only available in the English language The service is free of charge only the standard telephone costs will be charged Failure The red failure control lamp LED of the signal conditioning instrument lights e Sensor not connected correctly gt Check the electrical connection by means of the wiring plans e Line break gt Check the electrical connection cables from the probe to the signal conditioning instrument Resistance for line monitoring missing gt Check if a 220 kQ resistor is mounted in the sensor housing between terminals 1 and 2 or if the respective bridge to the fault message adjustment on the signal conditioning instru ment is present gt You can find further information in chapter Set up Failure adjustment bridge In Ex systems make sure that the Ex protection is not
11. 2 3 and 4 You can adjust the integration time accordingly with switch 2 3 and 4 The time periods of the activated time switches add up The set time applies to the switch on as well as the switch off delay 20 VEGATOR 631 Ex Signal conditioning instrument 0 1060 N3 0tbv c 23440 EN 090130 We EA 6 Setup Fault signal adjustment bridge bue To implement line monitoring you have to mount a resistor of 220 KQ between terminals 1 and 2 in the connection housing of the probe This means that with single point control the measuring and ground electrode are monitored and with two point control the max and ground electrode When a fault message is generated the switching output is simultaneously activated Fig 12 Measuring system with line monitoring 1 Resistor 220 kQ If a fault message is not wanted a bridge must be provided on the signal conditioning instrument instead of the resistor in the connection housing of the probe Note The line monitoring and the fault signal are inactive with this bridge Fig 13 Measuring system without line monitoring 1 Bridge between terminal 3 and 4 If a measuring system is used as part of an overfill protection system the bridge on the signal conditioning instrument must not be closed With Ex probes the resistor in the probe housin
12. 60 C 4 140 F 40 70 C 40 158 F for wire cross section up to 1 5 mm AWG 16 Electrical protective measures Protection class Signal conditioning instrument Terminal socket Overvoltage category Protection class Electrical separating measures reliable separation VDE 0106 part 1 between power supply sensor input level relay and tran sistor output Approvals ATEX ATEX II 1 G EEx ia IIC Others WHG Ship approval D Deviating data in Ex applications see separate safety instructions 30 VEGATOR 631 Ex Signal conditioning instrument 0 1L060 N3 0tbv c 23440 EN 090130 Velen 9 Supplement 9 2 Dimensions 134 mm 5 28 54 5 mm 2 15 E 7 I m SE E E m o o O on 5 6 7 90000 Y 36 mm 1 42 Fig 16 Dimensions VEGATOR 631 Ex 1 Transparent cover 2 Carrier rail 85 x 7 5 or 85 x 15 according to EN 50022 3 Ex separating chamber VEGATOR 631 Ex Signal conditioning instrument 31 VEE n 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 Q CE amp All statements concerning scope of delivery application
13. Operating Instructions VEGATOR 631 Ex Signal conditioning instrument VEGATOR 631 in out Signal n conditioning instruments and communication Contents 1 About this document Ved SEUNCHOMNY 2 1d reete orgie tet ee Gone a Aiea ee 4 1 2 Targat group i om emm me 4 13 Symbolism used llllll llle 4 2 For your safety 2 4 Authorised personnel 005 5 2 2 Appropriate use llle 5 2 3 Warning about misuse 04 5 2 4 General safety instructions 5 25 CE conformity 0000 6 2 6 Safety instructions for Ex areas 6 2 7 Environmental instructions 6 3 Product description 3 4 Configuration i o scele enn 7 3 2 Principle of operation 04 8 3 3 Operations ies eise me 8 3 4 Packaging transport and storage 8 4 Mounting 431 General instructions llle 10 4 2 Mounting instructions llle 10 5 Connecting to power supply 5 1 Preparing the connection 0004 13 5 2 Connection procedure selle less 13 5a Wining planse eair sesta tr hereto 14 6 Setup 6 14 Adjustment system lille 18 6 2 Adjustment elements 04 19 6 3 Switching point adjustment 23 7 Maintenance and fault rectification 7 14 Maintenance llllll lee 26 7 2 Remove interferences
14. apacity to handle normal loads during transport is assured by a test according to DIN EN 24180 The packaging of standard instruments consists of environment friendly recyclable cardboard For special versions PE foam or PE foil is also used Dispose of the packaging material via specialised recycling companies Transport must be carried out under consideration of the notes on the transport packaging Nonobservance of these instructions can cause damage to the device 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 Storage Up to the time of installation the packages must be left closed and stored according to the orientation and storage markings on the outside 8 VEGATOR 631 Ex Signal conditioning instrument 0 1060 N3 0tbv c 23440 EN 090130 VEBA 3 Product description Unless otherwise indicated the packages must be stored only under the following conditions Not in the open Dry and dust free Not exposed to corrosive media Protected against solar radiation Avoiding mechanical shock and vibration Storage and transport Storage and transport temperature see chapter Supplement temperature Technical data Ambient conditions e Relative humidity 20 85 VEGATOR 631 Ex Signal conditioning instrument 9 4 Mounting Installation location Transparent
15. areas These safety instructions are part of the operating instructions manual and come with the Ex approved instruments 2 7 Environmental instructions Protection of the environment is one of our most important duties That is why we have introduced an environment management system with the goal of continuously improving company environmental protection 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 e Chapter Packaging transport and storage e Chapter Disposal VEGATOR 631 Ex Signal conditioning instrument 0 1L060 N3 0tbv c 23440 EN 090130 3 Product description Scope of delivery Components Type label 3 Product description 3 1 Configuration The scope of delivery encompasses VEGATOR 631 Ex signal conditioning instrument Transparent cover lead sealable Terminal socket Bridges 4 pieces Coded pins 2 pieces Ex label Ex separating chamber Documentation this operating instructions manual Exspecific Safety instructions with Ex versions if necessary further certificates VEGATOR 631 Ex consists of VEGATOR 631 Ex signal conditioning instrument ga ee eem j 1o oo o 631Ex 299299 ST Fig 1 VEGATOR 631 Ex
16. e Move on to electrical connection and proceed as follows 1 Snap the socket without VEGATOR 631 Ex onto the carrier rail 2 Connect the sensor cable to terminal 1 and 3 see the following wiring plans 3 Connect power supply switched off to terminal 9 and 10 4 Insert VEGATOR 631 Ex into the plug in socket and screw it down tightly The electrical connection is finished VEGATOR 631 Ex Signal conditioning instrument 13 5 Connecting to power supply VEIA Limit level measurement Before setting up Ex versions make sure the Ex separating chamber is plugged above the sensor terminals The pins for type and Ex coding must also be inserted correctly 5 3 Wiring plan D ee 12 0 S o eS EI 5 6 Md tn LS WMO L_ Fig 5 Limit level measurement Relay output Power supply Transistor output Mass max Probe e g EL1 OO amp OolhNb 14 VEGATOR 631 Ex Signal conditioning instrument 0 1060 N3 0tbv c 23440 EN 090130 VEBA Two point control min max control 5 Connecting to power supply T 5 4 wy 6 4 3 eo o eo 12 34 DIT 2e ee siu els JE QO L1 D Fig 6 Two point control 1 Relay output 2 Power supply S Transistor output 4 Mass 5 Max 6 M
17. g is already present VEGATOR 631 Ex Signal conditioning instrument 21 6 Set up VEBA You can find the electrical connection of VEGATOR 631 Ex in the operating instructions manual of the corresponding signal conditioning instrument Line monitoring With Ex versions this 220 kQ resistor is already integrated ex factory in the connection housing of the probe The Ex measuring system max and ground connection cable of the probe to the signal conditioning instrument is generally monitored for line break Mode switch You can set mode A or B by means of the selection switch Mode A Preferrably as overflow protection compulsory as overfill protection Fig 14 Mode A Overfill protection Means with covered max electrode e Relay deenergises connection 12 13 is connected through relay e Transistor output blocks e Control lamp Output extinguishes Means with uncovered max electrode level detection or min electrode two point control e Relay energises connection 12 14 is connected through relay e Transistor output is conductive e Control lamp Output lights 22 VEGATOR 631 Ex Signal conditioning instrument 0 1L060 N3 0tbv c 23440 EN 090130 6 Set up pae Line monitoring Level detection for max signal Mode B Preferrably as dry run protection system
18. ible line capacitance Switching hysteresis 1 x level detection or 1 x pump control min max 1 200 KQ adjustable 220 kQ max 5 V eff max 1 mA 1x 100 nF or 2 x 70 nF with min max control 15 Adjustment elements DIL switch block Potentiometer Control lamps in the front plate Status indication operating voltage Status indication fault signal Status indication switching point control for preadjustment of the integration time and mode for switching point adjustment Signal lamp green LED Signal lamp red LED Signal lamp yellow LED Relay output Quantity Mode Integration time Contact Contact material 1 A B switch A max detection or overfill protection B min detection or dry run protection 500 ms 1 spdt for each output AgNi hard gold plated VEGATOR 631 Ex Signal conditioning instrument 29 9 Supplement Turn on voltage Switching current Breaking capacity z 10 mV DC lt 253 V AC DC 2 10 pA DC lt 3 A AC 1 ADC lt 750 VA lt 54 W DC Transistor output Number function Galvanic separation Maximum values Ug r ii Transistor voltage loss Uce Inverse current lo Ambient conditions 1 output synchronously switching with the relay Floating 36 V DC lt 60 mA approx 1 5 V at lg 60 mA lt 10 pA Ambient temperature Storage and transport temperature Electromechanical data Screw terminals 20
19. in 7 Probe e g ELS Note Mutiple rod probes connected to several signal conditioning instru ments or to a multiple channel instrument need a ground rod to keep the signal conditioning instruments from influencing each other VEGATOR 631 Ex Signal conditioning instrument 15 5 Connecting to power supply Two point control min max with overfill pro tection 9 39 Fig 7 Two point control with overfill protection DWRANAGTAWND Relay output Power supply Transistor output Max overfill protection Min Max Mass Probe e g EL3 Overfill protection Min max control 16 VEGATOR 631 Ex Signal conditioning instrument 0 1L060 N3 0tbv c 23440 EN 090130 VEIA 5 Connecting to power supply Circuit of the transistor outputs Fe RO Rs ETEN E ipm g 54 Uce HE i ee nr 1 Rs I oH KA d ue Ep I l 9 Fig 8 Circuit of the transistor outputs 1 VEGATOR 631 Ex 2 VEGATOR 631 Ex 3 PLC The resistor Rg serves as short circuit protection VEGATOR 631 Ex Signal conditioning instrument 17
20. influenced by the measuring instruments used 26 VEGATOR 631 Ex Signal conditioning instrument 0 1060 N3 0tbv c 23440 EN 090130 VEA 7 Maintenance and fault rectification The signal conditioning instrument does not switch when the respective probe is covered or uncovered e Conductivity of the product too low gt Check if the conductivity value of your product is at least 7 5 uS cm 7 3 Instrument repair If a repair is necessary please proceed as follows You can download a return form 23 KB from our Internet homepage www vega com under Downloads Forms and certificates Repair form By doing this you help us carry out the repair quickly and without having to call back for needed information e Print and fill out one form per instrument e Clean the instrument and pack it damage proof e Attach the completed form and if need be also a safety data sheet outside on the packaging e Please ask the agency serving you for the address of your return shipment You can find the respective agency on our website www vega com under Company VEGA worldwide VEGATOR 631 Ex Signal conditioning instrument 27 8 Dismounting Wale 8 Dismounting 8 1 Dismounting steps 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 c
21. intrinsically safe instrument and must not be installed in explosion endangered areas Before setup the Ex separating chamber must be attached as shown below with Ex versions Safe operation can be only ensured if the operating instructions manual and the EG type approval certificate are observed VEGATOR 631 Ex must not be opened Close the upper terminals according to the following illustration iL 1 O O Fig 3 Mounting the separating chamber All signal conditioning instruments are provided with different gaps dependent on type and version mechanical coding The plug in socket is provided with coded pins that can be inserted to prevent accidental interchanging of the various instrument types With a VEGATOR 631 Ex in Ex version the supplied coded pins type coded pin and Ex coded pin must be inserted by the user according to the below chart VEGATOR 631 Ex Signal conditioning instrument 11 4 Mounting 00000 CS 10 1132 18 14 Fig 4 Plug in socket VEGATOR 631 Ex Ex separating chamber Ex coding with Ex version A Type coding for VEGATOR 631 Ex 3 Bridges for looping the operating voltage A wD 12 VEGATOR 631 Ex Signal conditioning instrument 0 1L060 N3 0tbv c 23440 EN 090130 5 Connecting to power supply Note safety instructio
22. ns e i 9 Select power supply Take note of safety instruc tions for Ex ap plications Selecting connection cable Cable screening and grounding Select connec tion cable for Ex applications 9 5 Connecting to power supply 5 1 Preparing the connection Always keep in mind the following safety instructions e Connect only in the complete absence of line voltage e f overvoltage surges are expected overvoltage arresters should be installed Tip We recommend VEGA overvoltage arresters B61 300 power supply VEGATOR 631 Ex and B62 36G sensor supply In hazardous areas you should take note of the appropriate regulations conformity and type approval certificates of the sensors and power supply units The power supply can be 20 253 V AC 50 60 Hz or 20 72 V DC Power supply of VEGATOR 631 Ex is connected with standard cable according to the national installation standards The sensors are connected with standard two wire cable without screen If electromagnetic interference is expected which is above the test values of EN 61326 for industrial areas screened cable should be used From a cable length of 50 m use one cable for each signal conditioning instrument If you are using a common cable the min and max cables must be screened The screen must be connected the ground on both sides Take note of the corresponding installation regulations for Ex applications 5 2 Connection procedur
23. ompanies We use recyclable materials and have designed the electronics to be easily separable WEEE directive 2002 96 EG This instrument is not subject to the WEEE directive 2002 96 EG and the respective national laws Pass the instrument directly on to a specialised recycling company and do not use the municipal collecting points These may be used only for privately used products according to the WEEE directive Correct disposal avoids negative effects to persons and environment and ensures recycling of useful raw materials Materials see chapter Technical data If you have no possibility to dispose of the old instrument professionally please contact us concerning return and disposal 28 VEGATOR 631 Ex Signal conditioning instrument 0 1L060 N3 0tbv c 23440 EN 090130 Velen 9 Supplement 9 Supplement 9 1 Technical data General data Series Weight Housing material Socket material Power supply Operating voltage Max power consumption Fuse Supply area Switching off possibility Module unit with plug in socket for mounting on carrier rail 35 x 7 5 or 35 x 5 according to EN 50022 170 g 6 oz Noryl SE100 Lexan 920A Noryl SE100 Noryl SE1 GFN3 20 253 V AC 50 60 Hz 20 72 V DC 15 W 1 9 VA T 315 mA 253 V min 35 A at 253 V AC or 125 V DC Sensor input Quantity Response resistor Parallel resistor for fault monitoring Measuring circuit Permiss
24. onversions or modifications are explicitly forbidden 2 3 Warning about misuse Inappropriate or incorrect use of the instrument can give rise to application specific hazards e g vessel overfill or damage to system components through incorrect mounting or adjustment 2 4 General safety instructions This is a high tech instrument requiring the strict observance of standard regulations and guidelines The user must take note of the safety instructions in this operating instructions manual the country specific installation standards as well as all prevailing safety regulations and accident prevention rules The instrument must only be operated in a technically flawless and reliable condition The operator is responsible for trouble free operation of the instrument During the entire duration of use the user is obliged to determine the compliance of the required occupational safety measures with the current valid rules and regulations and also take note of new regulations VEGATOR 631 Ex Signal conditioning instrument 5 2 For your safety VEBA 2 5 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 6 Safety instructions for Ex areas Please note the Ex specific safety information for installation and operation in Ex
25. transistor conducts The relay deenergises again at max level and the transistor blocks At first connect only ground and max electrode to the signal conditioning instrument terminals 1 and 3 Set the mode selection switch to mode B Connect the signal conditioning instrument to power supply Turn the potentiometer to position 10 Fill the vessel until the max electrode is covered approx 1 cm by the product Turn the potentiometer slowly clockwise until the yellow signal lamp extinguishes e Connect the min electrode to terminal 2 of the signal conditioning instrument The two point control is now adapted to the conductivity of the medium i e the relay deenergises at max level and the transistor blocks This switching condition remains until the level falls below the position of the min electrode i e the relay energizes at min level and the transistor conducts 24 VEGATOR 631 Ex Signal conditioning instrument 0 1L060 N3 0tbv c 23440 EN 090130 VERA 6 Setup The relay deenergises again at max level and the transistor blocks VEGATOR 631 Ex Signal conditioning instrument 25 7 Maintenance and fault rectification Welles Causes of malfunction Fault rectification 24 hour service hotline 7 Maintenance and fault rectification 7T 1 Maintenance When used in the correct way no special maintenance is required in normal operation 7 2 Remove interferences A maximum of
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