Operating Instructions VEGATOR 631 Ex Signal conditioning instrument in Signal conditioning instruments and communication out
Contents Contents 1 About this document 1.1 1.2 1.3 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .. .. .. .. .. 5 5 5 5 6 6 6 Configuration . . . . . . . . . . . . . . . Principle of operation . . . . . . . . . Operation. . . . . . . . . . . . . . . . . . Packaging, transport and storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .. ..
Contents 23440-EN-090130 Supplementary documentation Information: Supplementary documents appropriate to the ordered version come with the delivery. You can find them listed in chapter "Product description".
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 VEGATOR 631 Ex is a universal signal conditioning instrument for connection of a level switch.
2 For your safety 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 areas. These safety instructions are part of the operating instructions manual and come with the Ex-approved instruments.
3 Product description 3 Product description 3.
3 Product description 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 Application area VEGATOR 631 Ex is a single signal conditioning instrument for processing the signals of conductive probes. Functional principle The VEGATOR 631 Ex signal conditioning instrument powers connected sensors and simultaneously processes their measuring signals.
3 Product description Unless otherwise indicated, the packages must be stored only under the following conditions: Storage and transport temperature l l l l l Not in the open Dry and dust free Not exposed to corrosive media Protected against solar radiation Avoiding mechanical shock and vibration l Storage and transport temperature see chapter "Supplement Technical data - Ambient conditions" Relative humidity 20 … 85 % 23440-EN-090130 l VEGATOR 631 Ex • Signal conditioning instrument 9
4 Mounting 4 Mounting 4.1 General instructions Installation location VEGATOR 631 Ex signal conditioning instrument with plug-in socket for mounting on carrier rail according to EN 50022. Transparent cover The front plate of VEGATOR 631 Ex can be provided with a leadsealable transparent cover to protect the instrument against unauthorised or inadvertent adjustment. See the following figure on how to remove the transparent cover. Fig.
4 Mounting 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, intrinsically safe instrument and must not be installed in explosion-endangered areas. Ex separating chamber Before setup, the Ex separating chamber must be attached (as shown below) with Ex versions.
4 Mounting 1 1 2 2 3 4 A B C 1 2 3 - 3 + 7 8 9 N L1 4 5 6 7 8 9 10 11 12 13 14 Fig.
5 Connecting to power supply 5 Connecting to power supply 5.1 Preparing the connection Note 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 VEGA overvoltage arresters B61-300 (power supply VEGATOR 631 Ex) and B62-36G (sensor supply).
5 Connecting to power supply 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 Limit level measurement 5 4 1 2 1 2 3 4 6 5 6 9 10 L N (+)(–) 7 8 12 13 14 1 2 3 Fig. 5: Limit level measurement 1 2 3 4 5 6 Relay output Power supply Transistor output Mass max. Probe, e.g.
5 Connecting to power supply Two-point control (min./ max. control) 6 1 2 5 4 3 1 2 3 4 7 5 6 9 10 1 2 3 L N (+)(–) 7 8 12 13 14 1 2 3 Fig. 6: Two-point control 1 2 3 4 5 6 7 Relay output Power supply Transistor output Mass Max. Min. Probe, e.g. EL3 23440-EN-090130 Note: Mutiple rod probes connected to several signal conditioning instruments or to a multiple channel instrument need a ground rod to keep the signal conditioning instruments from influencing each other.
5 Connecting to power supply Two-point control (min./ max.) with overfill protection 4 23 1 4 6 5 7 1 2 3 4 1 2 A 3 4 B 8 2 4 3 5 6 7 8 5 6 7 8 9 10 12 1314 9 10 12 1314 L N (+) (–) 1 L N (+) (–) 1 2 3 Fig. 7: Two-point control with overfill protection 1 2 3 4 5 6 7 8 A B Relay output Power supply Transistor output Max. overfill protection Min. Max. Mass Probe, e.g. EL3 Overfill protection Min./max.
5 Connecting to power supply Circuit of the transistor outputs 1 + RS + UCE - + RS + UCE - - 3 2 Fig. 8: Circuit of the transistor outputs 1 2 3 VEGATOR 631 Ex VEGATOR 631 Ex PLC The resistor RS serves as short-circuit protection. P 47 Ω 0.25 W 150 Ω 0.75 W 330 Ω 1.5 W 560 Ω 2.
6 Set up 6 Set up 6.1 Adjustment system 5 1 2 3 EEx ia 4 6 A B C 1 2 TEST 1 Plug-in socket Typ 600-1 3 + 0...10V 7 DISBUS 2 3 N L1 7 12 on 4 7 8 9 8 5 6 7 8 9 10 12 13 14 5 6 9 10 7 8 9 12 13 14 10 Fig.
6 Set up 12 6 2 A 1 2 3 4 sec t off 1 B VEGA TOR 631 EX CE R a : -20É+60¡C IP 30 I nsp. out max: 36V 60mA minimum Terminal maximum Sensor 1 2 3 4 +- 5 6 power supply max.250VAC 125VA 2A 12 13 14 2 20É250 VAC 20É72VDC 1...8 VA L N +- 9 10 3 Fig. 10: Indicating and adjustment elements 1 2 3 DIL switch block Type label Transparent cover 6.
6 Set up - - Generally the relay control lamp shows the activated (energized) condition of the relay A dark relay control lamp means that the relay is deenergised (transistor blocks) Potentiometer for switching point adjustment 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.
6 Set up Fault signal adjustment, bridge To implement line monitoring, you have to mount a resistor of 220 kΩ 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. 1 2 1 2 3 1 3 1 2 3 4 Fig.
6 Set up 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 kΩ 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.
6 Set up Mode B Preferrably as dry run protection system. 1 2 3 Fig. 15: Mode B - Dry run protection Means with covered max. electrode: l l l Relay energises, connection 12 - 14 is connected through relay Transistor output is conductive Control lamp - Output lights Means with uncovered max. electrode (level detection) or min. electrode (two-point control): l l l Relay deenergises, connection 12 - 13 is connected through relay Transistor output blocks Control lamp - Output extinguishes 6.
6 Set up The max. electrode is now adapted to the conductivity of the medium i. e. the relay deenergises at max. level and the transistor blocks. Level detection for min. signal l l l l l 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 Turn the potentiometer slowly anticlockwise until the yellow signal lamp extinguishes The min.
6 Set up 23440-EN-090130 The relay deenergises again at max. level and the transistor blocks.
7 Maintenance and fault rectification 7 Maintenance and fault rectification 7.1 Maintenance When used in the correct way, no special maintenance is required in normal operation. 7.2 Remove interferences Causes of malfunction A maximum of reliability is ensured. Nevertheless, faults can occur during operation. These may be caused by the following, e.g.
7 Maintenance and fault rectification ? The signal conditioning instrument does not switch when the respective probe is covered or uncovered l Conductivity of the product too low à Check if the conductivity value of your product is at least 7.5 µS/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".
8 Dismounting 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 companies. 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.
9 Supplement 9 Supplement 9.1 Technical data General data Series Module unit with plug-in socket for mounting on carrier rail 35 x 7.5 or 35 x 5 according to EN 50022 Weight 170 g (6 oz) Housing material Noryl SE100, Lexan 920A Socket material Noryl SE100, Noryl SE1 GFN3 Power supply Operating voltage 20 … 253 V AC, 50/60 Hz, 20 … 72 V DC Max. power consumption 1.5 W (1 … 9 VA) Fuse - Supply area - Switching off possibility T 315 mA, 253 V min.
9 Supplement Turn-on voltage ≥ 10 mV DC, ≤ 253 V AC/DC Switching current ≥ 10 µA DC, ≤ 3 A AC, 1 A DC Breaking capacity ≤ 750 VA, ≤ 54 W DC Transistor output Number, function 1 output, synchronously switching with the relay Galvanic separation Floating Maximum values - UB 36 V DC - ≤ 60 mA IB Transistor voltage loss (UCE) approx. 1.
9 Supplement 9.2 Dimensions 3 1 54,5 mm (2.15") 134 mm (5.28") 118,5 mm (4.67") 2 on 5 6 7 8 9 10 12 13 14 36 mm (1.42") Fig. 16: Dimensions VEGATOR 631 Ex Transparent cover Carrier rail 35 x 7.
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.
