Operating Instructions Signal conditioning and display instrument for level sensors VEGAMET 625 Double channel HART Document ID: 28970
Contents Contents About this document 1.1 Function............................................................................................................................ 4 1.2 Target group...................................................................................................................... 4 1.3 Symbols used................................................................................................................... 4 2 For your safety 2.1 Authorised personnel...................
Contents 9.3 How to proceed if a repair is needed............................................................................... 51 10 Dismount 10.1 Dismounting steps.......................................................................................................... 52 10.2 Disposal.......................................................................................................................... 52 28970-EN-150129 11 Supplement 11.1 Technical data...........................................
1 About this document 1 About this document 1.1 Function 1.2 Target group 1.3 Symbols 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 VEGAMET 625 is a universal signal conditioning instrument and power supply unit for connection of two HART sensors.
2 For your safety 2.5 Safety label on the instrument 2.6 CE conformity The safety approval markings and safety tips on the device must be observed. The device fulfills the legal requirements of the applicable EC guidelines. By affixing the CE marking, we confirm successful testing of the product. You can find the CE Certificate of Conformity in the download section of our homepage. Electromagnetic compatibility The instrument is designed for use in an industrial environment.
3 Product description 3 Product description 3.
3 Product description The order data and the documentation of the instrument can be retrieved by means of the instrument serial number on the type label. To do this, go to www.vega.com, "VEGA Tools" and "serial number search". Application area 3.2 Principle of operation VEGAMET 625 is a universal signal conditioning instrument for a number of applications such as level, gauge, interface and process pressure measurement. At the same time, it can serve as power supply unit for connected sensors.
3 Product description Further instructions for setting up the web server and e-mail functions can be found in the online help of PACTware or the VEGAMET 625 DTMs as well as the operating instructions manual "RS232/Ethernet connection". Packaging 3.4 Packaging, transport and storage Your instrument was protected by packaging during transport. Its capacity to handle normal loads during transport is assured by a test based on ISO 4180.
4 Mounting 4 Installation possibilities Mounting Mounting 4.1 General instructions 4.2 Mounting instructions Each series 600 instrument consists of the actual signal conditioning instrument as well as a plug-in socket for carrier rail mounting (tophat rail 35 x 7.5 according to DIN EN 50022/60715). Because it has protection class IP 30 or IP 20, the instrument is intended to be used in switching cabinets. The plug-in socket is designed for carrier rail mounting.
4 Mounting 1 1 2 3 Ao Bo Co 1o 2o 3o o o o 4 7o 8o 9o o o 12 o 4 VEGA N L1 5 6 7 Ao Bo Co 1o 2o 3o 4o 5o 6o 7o 8o 9o 10 o 11 o 12 o 8 VEGA 2 3 N L1 4 Fig.
5 Connecting to power supply 5 Note safety instructions Connecting to power supply 5.
5 Connecting to power supply Note: With a VEGAMET 625 in Ex version, the passive input is not availble for approval technical reasons. 5.3 Connection procedure VEGAMET 625 is designed for connection of two HART sensors. Because they are accessed via different addresses in the HART multidrop mode, both sensors are connected to the same sensor input. These are either terminals 1/2 (active input) or terminals 3/4 (passive input). Simultaneous mixed operation on active and passive input is not possible.
5 Connecting to power supply Before setting up Ex versions, make sure the Ex separating chamber is plugged on the left housing side (above the sensor terminals). The pins for type and Ex coding must also be inserted correctly. Wiring plan for two-wire sensors 5.4 Wiring plan 10 + - + - 1 3 2 8 4 5 6 7 8 9 13 4 9 10 12 6 + - + - 11 12 13 14 15 16 17 18 19 20 21 22 11 5 + - 23 24 25 26 27 28 + L1 N 7 1 2 3 Fig.
5 Connecting to power supply Wiring plan for four-wire sensors 10 + - + - 1 3 2 8 4 5 6 7 8 9 13 4 9 10 11 12 6 + - + - 11 12 13 14 15 16 17 18 19 20 21 22 14 5 + - 23 24 25 26 27 28 + L1 N 7 1 2 3 Fig.
6 Setup with the integrated display and adjustment unit 6 Function Display and adjustment elements Setup with the integrated display and adjustment unit 6.1 Adjustment system The integrated display and adjustment unit is used for measured value display, adjustment and diagnosis of VEGAMET 625 as well as the connected sensors. The indication and adjustment are carried out via four keys and a clear, graphic-capable display with background lighting.
6 Setup with the integrated display and adjustment unit –– Jump to next higher menu Note: Approx. 10 minutes after the last pressing of a key, an automatic reset to measured value indication is triggered. Any values not confirmed with [OK] will not be saved. Parameter adjustment 6.2 Setup steps Through parameter adjustment, the instrument is adapted to the individual application conditions. A measurement loop calibration is the most important step and should always be carried out.
6 Setup with the integrated display and adjustment unit Switch-on phase After being switched on, VEGAMET 625 first of all carries out a short self-check. The following steps are carried out: • • • Internal check of the electronics indication of the instrument type, firmware version as well as the instrument TAG (instrument name) The output signals jump briefly to the set fault value After the assignment of the addresses to the sensors, the current measured values will be displayed and outputted.
6 Setup with the integrated display and adjustment unit → Select the menu item "Device settings" with [->] and confirm with [OK]. Device settings - Applica- Under the menu item "Device settings", you can select the requested tion application. For all level, gauge and differential measurements, the application "Standard" is correct. If an interface measurement should be carried out with a VEGAFLEX 67, you have to choose the menu item "Interface measurement" as application.
6 Setup with the integrated display and adjustment unit name. By default, the host name consists of the serial number plus "VEGA-" in front. As an alternative, it is also possible to enter a static IP addr. with Subnet mask and optional Gateway addr. Note: Keep in mind that your modification will be only effective after a restart of VEGAMET 625.
6 Setup with the integrated display and adjustment unit → Carry out your settings via the respective keys and save with [OK]. Further information is available in the supplementary instructions manual "RS232/Ethernet connection" and the online help of the respective DTM. Measurement loop - Input Because VEGAMET 625 has two inputs, the measurement loops must be assigned to the inputs.
6 Setup with the integrated display and adjustment unit Before carrying out the adjustment, the requested adjustment unit can be selected which depends on the sensor type. With radar, ultrasonic and guided microwave this is always the distance in metres or feet "m(d)" or "ft(d)", and with pressure transmitters it is e.g. "bar" or "psi". The following illustrations and examples relate to the min./max. adjustment of a radar sensor with HART communication. 1.
6 Setup with the integrated display and adjustment unit Meas. loop - Damping To suppress fluctuations in the measured value display, e.g. caused by an agitated product surface, an integration time can be set. This time can be between 0 and 999 seconds. Remember that the reaction time of the entire measurement will then be longer and the sensor will react to measured value changes with a delay. In general, a period of a few seconds is sufficient to smooth the measured value display.
6 Setup with the integrated display and adjustment unit → Meas. loop - Outputs Relays outputs Enter the requested parameters via the appropriate keys and save your settings with [OK]. Under "Outputs" you will find the relay/current outputs. With relay output, first of all the requested mode ("Overfill protection" or "Dry running protection") must be selected. • • Overfill protection: Relay is switched off when the max.
6 Setup with the integrated display and adjustment unit The characteristics of the current outputs can be set to 0 … 20 mA, 4 … 20 mA or inverted. The reaction in case of failure can be also adapted to the requirements. The parameter to which they refer can also be selected. → Display In the menu item "Display - Indication value", you can set the requested indication value.
6 Setup with the integrated display and adjustment unit → Service - Reset There are two reset modes: • • Service - Sensor address Carry out your settings via the appropriate keys and save with [OK]. Reset to default: with only a few exceptions, all settings will be reset to default. Exceptions are: Host name, IP-addr., subnet mask, time, language. Reset on measurement loop: The settings of the selected measurement loop will be set to default.
6 Setup with the integrated display and adjustment unit example, for test purposes. Requirement is that a WEB-VV event was configured in advance via PACTware/DTM. Info In the menu item "Info" the following information is available: Optional settings Additional adjustment and diagnostics options are available via the Windows software PACTware and the suitable DTM. Connection can be made optionally via the built-in standard interface or one of the optionally offered interfaces (RS232/Ethernet).
6 Setup with the integrated display and adjustment unit Device settings Device settings - Input 28970-EN-150129 28 VEGAMET 625 • Double channel HART
6 Setup with the integrated display and adjustment unit Measurement loops 1/2 - Input Meas. loop 1/2 - Change input 28970-EN-150129 Meas.
6 Setup with the integrated display and adjustment unit Meas. loop 1/2 - Parameter Meas. loop 3 - Parameter Meas. loop - Adjustment Meas.
6 Setup with the integrated display and adjustment unit Meas. loop - Linearization curve Meas. loop - Scaling Meas. loop - Meas. loop TAG 28970-EN-150129 Meas.
6 Setup with the integrated display and adjustment unit Meas.
6 Setup with the integrated display and adjustment unit Service Service - Simulation Service - Sensor address 28970-EN-150129 Service - Data transmission (only with option RS232/Ethernet interface) VEGAMET 625 • Double channel HART 33
6 Setup with the integrated display and adjustment unit Info 28970-EN-150129 34 VEGAMET 625 • Double channel HART
7 Setup with PACTware 7 7.1 Connect the PC For a brief connection of the PC, e.g. for parameter adjustment, connection can be carried out via the VEGACONNECT 4 interface converter. The necessary I²C interface on the front is available on all instrument versions. On the computer side, connection is carried out via the USB interface. EN OP USB TWIST LO CK Connection of the PC via VEGACONNECT Setup with PACTware 3 2 1 Fig.
7 Setup with PACTware 2 3 1 Fig. 7: Connection of the PC via Ethernet 1 2 3 Ethernet interface of the PC Ethernet connection cable (Cross-Over cable) Ethernet interface Connection of the modem The RS232 interface is particularly suitable for simple modem convia RS232 nection. External analog, ISDN and GSM modems with standard interface can be used. The necessary RS232 modem connection cable is included with the delivery.
7 Setup with PACTware 4 3 2 1 Fig. 9: Connection of the PC via RS232 1 2 3 4 RS232 interface of the PC RS232 interlink cable (article no. LOG571.17347) RS232 modem connection cable (in the scope of delivery) RS232 interface (RJ45 plug connection) Assignment RS232 modem connection cable 1 1 8 2 3 5 4 3 2 1 9 8 7 6 RXD 4 2 TXD 3 3 RTS 6 7 CTS 2 8 GND 5 5 DTR 1 4 Fig.
7 Setup with PACTware the latest instrument software from our homepage. A description of the update procedure is also available in the Internet. Further setup steps are described in the operating instructions manual "DTM Collection/PACTware" attached to each DTM Collection and which can also be downloaded from the Internet. A detailed description is available in the online help of PACTware and the DTMs as well as in the supplementary instructions manual "RS232/Ethernet connection".
8 Application examples 8 Application examples 8.1 Functional principle Level measurement in a cylindrical tank with overfill protection/dry run protection The level is detected via a sensors and transmitted to the signal conditioning instrument by means of a 4 … 20 mA signal. Here, an adjustment is carried out converting the input value delivered by the sensor into a percentage value. Due to the geometrical form of the cylindrical tank, the vessel volume does not increase linear with the level.
8 Application examples adjustedto 5 %, this corresponds to 181 litres. The volume should be displayed in litres. Adjustment Carry out the adjustment in the signal conditioning instrument as described in chapter "Setup steps". No additional adjustment must hence be carried out on the sensors. For the max. adjustment, fill the vessel up to the requested max. level and accept the actually measured value. If this is not possible, the respective current value can be entered alternatively. For the min.
8 Application examples 5 1 h1 h3 3 2 4 Fig. 12: Differential measurement - weir control 1 2 3 4 5 Headwater Tail water Difference h3 Reference plane max. level h1 The following steps are necessary: • • 28970-EN-150129 • Selection of the application –– Select under "Device settings - Application" the entry "Standard" and confirm with [OK]. Via the [->] key you reach the next step.
8 Application examples • • Adjustment –– Measurement loop 1 (upstream water): Select under "Measurement loops - Meas. loop 1 - Adjustment" in the menu item "Adjustment unit" the unit "m" (meter) and the density unit "1.000 kg/dm³". Enter under "Min. adjustment" 0.00 m and under "Max. adjustment" the max. level in meter (h1) ein. I.e.
8 Application examples • Further information on the dielectric constant are available in the operating instructions manual of VEGAFLEX. For this application, do not enter a dielectric constant directly on VEGAFLEX, because this value will be overwritten automatically by VEGAMET 625 Adjustment –– Each VEGAFLEX is shipped with default settings. The values of this adjustment are automatically tranferred to VEGAMET 625 during the setup of the interface measurement.
8 Application examples switching points. With this measure, a steady utilization of the pumps is achieved and the reliability increased. All relays with activated pump control are not assigned to a certain switching point but are switched on or off depending on the accumulated operating time. The signal conditioning instrument selects the relay with the shortest operating time when the switch-on point is reached and the relay with the longest operating time when the switch-off point is reached.
8 Application examples Switch on reaction of the pump control 2 When the signal conditioning instrument is switched on, the relays are at first in a switched-off status.
8 Application examples Parameter • • • • Measured value change higher: Measured value change per time unit, at which the tendency recognition should respond Max.
8 Application examples 8.6 Flow measurement Functional principle For flow measurement in open flumes, a contraction or standardised flume must be used. Depending on the flow volume, this contraction generates a certain backwater. The flow can be determined from the height of this backwater. The flow volume is outputted by an appropriate number of pulseson the relay or current output. Flume Depending on the type and version, each flume generates a different backwater.
8 Application examples Scaling Select in the DTM window "Scaling" under "Parameter" the option "Flow". Finally the allocation of a value must be carried out, i.e. the flow volume is assigned to the 0 and 100 % value. As the last step, select the requested meas. unit. For above example: 0 % = 0 and 100 % = 400, meas. unit m³/h. Outputs First of all decide if you want to use a relay and/or a current output.
9 Maintenance and fault rectification 9 Maintenance and fault rectification 9.1 Maintenance 9.2 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. Causes of malfunction Maximum reliability is ensured. Nevertheless, faults can occur during operation. These may be caused by the following, e.g.
9 Maintenance and fault rectification Fault message The signal conditioning instrument and the connected sensors are permanently monitored during operation and the values entered during parameter adjustment are checked for plausibility. If irregularities occur or in case of incorrect parameter adjustment, a fault signal is triggered. In case of an instrument defect or line break/shortcircuit, a fault signal is also triggered.
9 Maintenance and fault rectification Reaction after fault rectification Error code Cause E053 –– Communication error: Check sensor Sensor measuring cable and screening range is not read correctly Rectification E062 Pulse priority too small –– Increase under "Output" the entry "Pulse output all" so that max. one pulse per second is outputted.
10 Dismount 10 Dismount 10.1 Dismounting steps Take note of chapters "Mounting" and "Connecting to power supply" and carry out the listed steps in reverse order. 10.2 Disposal The instrument consists of materials which can be recycled by specialised recycling companies. We use recyclable materials and have designed the parts 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.
11 Supplement 11 Supplement 11.1 Technical data General data Series Module unit with plug-in socket for mounting on carrier rail (35 x 7.5 according to DIN EN 50022/60715) Weight 500 g (1.10 lbs) Housing materials Noryl SE100, Lexan 920A Socket materials Noryl SE100, Noryl SE1 GFN3 Connection terminals ƲƲ Type of terminal ƲƲ Max. wire cross-section Voltage supply Operating voltage 20 … 253 V AC, 50/60 Hz, 20 … 253 V DC Max.
11 Supplement Breaking capacity2) min. 50 mW, max. 750 VA, max. 40 W DC Min. programmable switching hysteresis 0.1 % ƲƲ Fault signal (switch over) Switching condition off; unchanged ƲƲ Pulse length 350 ms Mode pulse output Current outputs Quantity 3 x outputs Range 0/4 … 20 mA, 20 … 0/4 mA Function Resolution Max.
11 Supplement Operation Adjustment elements 4 x keys for menu adjustment PC adjustment PACTware with respective DTM Ambient conditions Ambient temperature -20 … +60 °C (-4 … +140 °F) Storage and transport temperature Electrical protective measures Protection rating ƲƲ Instrument ƲƲ Terminal socket Overvoltage category Protection class -40 … +80 °C (-40 … +176 °F) IP 30 IP 20 II II Electrical separating measures Reliable separation according to VDE 0106 part 1 between power supply, input and dig
11 Supplement Application/Function 391 624 625 693 OP3) Level measurement • • • • • DTM • Process pressure measurement • • • • • • DTM Instrument version with interface option 391 624 625 693 OP Set the time Application/Function • • • • • • Assign/modify IP-addr./Subnet mask/Gateway addr. • • • • • • Assign/modify DNS server addr.
11 Supplement 11.4 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.
INDEX INDEX A H Address setting 13, 17 Adjustment 21, 50 ––Max. adjustment 22 ––Min.
INDEX Primary Value 21 Pump control 43 Weir control 40 WHG 6 R Recycling 52 Relay 51 Relay output 24 ––Fail safe relay 50 Repair 51 Reset 26 RS232 36 ––Communication protocol 20 ––Connection assignment RS232 modem connection cable 37 ––USB - RS232 adapter 36 RS232 interface 26 S Scaling 23, 25, 39, 50 Secondary Value 21 Sensor address 26 Sensor input ––active 12 ––Passive 12 Sensor search 21 Serial number 7, 8, 27 Service 25 Service hotline 49 Simulation 25 Software update 37 Spherical tank 23 Subnet
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 2015 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.
