Vega VEGAMET 625 Operating Instructions Manual
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Vega VEGAMET 625 Operating Instructions Manual

Double channel hart signal conditioning instrument
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Operating Instructions
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Double channel Hart signal conditioning
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Summary of Contents for Vega VEGAMET 625

  • Page 1 Operating Instructions VEGAMET 625 Double channel Hart signal conditioning instrument...

  • Page 2: Table Of Contents

    Pump control......Tendency recognition....VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 3 The operating instructions manual "RS232/Ethernet connec- tion" as well as the additional instructions manual "Modbus- TCP, VEGA ASCII protocol" is attached to instructions with RS232/Ethernet interface. Here you will find further information for setup. VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 4: About This Document

    The dot set in front indicates a list with no implied sequence. à Action This arrow indicates a single action. Sequence Numbers set in front indicate successive steps in a procedure. VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 5: For Your Safety

    - Emission EN 61326: 1997 (class A) Susceptibility EN 61326: 1997/A1: 1998 LVD: EN 61010-1: 2001 VEGAMET 625 is designed for use in an industrial environ- ment. Nevertheless, electromagnetic interference from elec- trical conductors and radiated emissions must be taken into account, as is usual with a class A instrument acc.

  • Page 6: Safety Information For Ex Areas

    For your safety EN 61326. If VEGAMET 625 is used in a different environment, the electromagnetic compatibility to other instruments must be ensured by suitable measures. 2.6 Safety information for Ex areas Please note the Ex-specific safety information for installation and operation in Ex areas.

  • Page 7: Product Description

    23 24 25 26 27 28 Fig. 1: VEGAMET 625 Ex separating chamber with Ex version VEGAMET 625 Indicating and adjustment unit Communication interface for VEGACONNECT (I²C) RS232 or Ethernet interface (optional) Socket VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 8: Principle Of Operation

    With instruments with an optional interface (RS232/Ethernet) the measured values can be retrieved via modem or network and displayed by means of a web browser or Visual VEGA. It is also possible to send measured values and messages via e- mail.

  • Page 9: Storage And Transport

    VEGACONNECT. Further instructions for setting up the web server and e-mail functions are stated in the online help of PACTware™ or the VEGAMET 625 DTM as well as the operating instructions manual "RS232/Ethernet connection". 3.4 Storage and transport Your instrument was protected by packaging during transport.

  • Page 10: Mounting

    A VEGAMET 625 in Ex version is an auxiliary, intrinsically safe instrument and must not be installed in hazardous areas. Before setup, the Ex separating chamber must be attached (as shown below) with Ex versions.
  • Page 11 10 o 11 o 12 o 12 o Fig. 2: Socket VEGAMET 625 Ex separating chamber Ex coding with Ex version Type coding for VEGAMET 624/625 Bridges for looping the power supply VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 12: Connecting To Power Supply

    (low impedance). If potential equalisation currents are expected, the screen connection on the VEGAMET 625 must be made via a ceramic capacitor (e.g. 1 nF, 1500 V). The low frequency potential equalisation currents are thus suppressed, but the protective effect against high frequency interference signals remains.

  • Page 13: Connection Steps

    4 Connect power supply (switched off) to terminal 17 and 18 5 If necessary, connect relays or other outputs 6 Insert VEGAMET 625 into the plug-in socket and screw it down tightly The electrical connection is finished.
  • Page 14 Ex ia is not permitted on the passive input. Note: 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.

  • Page 15: Wiring Plans

    15 16 17 18 19 20 21 22 23 24 25 26 27 28 L1 N Fig. 3: Wiring plan VEGAMET 625 with two-wire sensors Internal operating relay 1 Internal operating relay 2 Internal operating relay 3 Internal current output 1...
  • Page 16 15 16 17 18 19 20 21 22 23 24 25 26 27 28 L1 N Fig. 4: Wiring plan, VEGAMET 625 with four-wire sensors Internal operating relay 1 Internal operating relay 2 Internal operating relay 3 Internal current output 1...

  • Page 17: Setup With The Integrated Indicating And Adjustment Unit

    Status indication interface activity Status indication operating relay 1-3 [OK] key: Key functions - move to the menu overview - confirm selected menu - edit parameter save value [->] key to select: VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 18: Setup Procedure

    HART sensor via the respective adjustment unit or an appropriate adjustment software. As an alternative, the setting of the sensor address can be also carried out via the VEGAMET menu under "Service - Sensor address". VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 19 If this is not the case, the sensor cannot be accessed and it is not possible to assign an address. After being switched on, VEGAMET 625 first of all carries out a Switch-on phase short self-check. The following steps are carried out: Internal check of the electronics indication of the instrument type, firmware version as well...
  • Page 20 Allocate the requested inputs to the appropriate measure- ment loops, select the suitable sensor value and save your settings with [OK]. After the first setup, you can modify the inputs also under "Meas. loop - Input ". VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 21 Setup with the integrated indicating and adjustment unit You can assign an unambiguous name to VEGAMET 625 via Device settings - Device-TAG the Device-TAG. This function is recommended when several VEGAMETs are implemented and a good documentation of larger system is required.
  • Page 22 Input 1 VEGAPULS (addr. 1) Distance Change input? Via the parameter you inform VEGAMET 625 of the type of Meas. loop - Parameter measurement. The following options are available: Level Process pressure (only with VEGABAR, VEGAWELL, D- series) Temperature (only with VEGABAR, VEGAWELL) Difference (only with measurement loop 3)
  • Page 23 In general, a time of a few seconds is sufficient to smooth the measured value display. VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 24 In digital systems and in the documentation of larger plants, a unique designation should be entered for exact identification of individual measuring sites. VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 25 The parameter to which they refer can also be selected. Current output 1 ▼ Basic meas. value: % Characteristics: ▼ 4 … 20 mA ▼ Failure mode: 22 mA VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 26 Exceptions are: IP-addr., subnet mask, time, language. Reset to measurement loop: Only user-specific settings of an individual measurement loop are reset. These are e.g. adjustment, linearisation, scaling, damping, parameters of the outputs. VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 27 Adjust in the menu item "Previous address" the current HART address of the requested sensor. The default settings of all supplied VEGA sensors is always 00. After pushing the [->] key, you can assign in the menu "New address" the requested HART address in the range of 01 - 15.

  • Page 28: Menu Schematic

    ▶ Input ▶ Meas. loop 1 Parameter VEGAPULS (addr. 1) Display now? Meas. loop 2 Adjustment Distance Meas. loop 3 Damping Linearization curve Change input? Sensor setting ① Start sensor setting? VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 29 ▶ Meas. loops Display Diagnostics Service Info Meas. loops Meas. loop Parameter Input ▶ ▶ ▼ Meas. loop 1 Parameter Level Meas. loop 2 Adjustment Meas. loop 3 Damping Linearization curve VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 30 Device settings ▶ Meas. loops Display Diagnostics Service Info Meas. loops Meas. loop Damping ① Input ▶ Meas. loop 1 Parameter Meas. loop 2 Adjustment ▶ Meas. loop 3 Damping Linearization curve VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 31 Diagnostics Service Info Meas. loops Input Meas. loop TAG ① Adjustment ▶ Meas. loop 1 Damping TAG-No. 1 Meas. loop 2 Linearization curve Meas. loop 3 Scaling ▶ Meas. loop TAG VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 32 Current output ① Current output ① Current output ① ▼ ▶ ▶ Basic meas. value: % Basic meas. value ▼ Output mode: 4-20mA Characteristics Lin% ▼ Failure mode: 22mA Failure mode VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 33 Adjustment span too small Show details? Service Device settings Meas. loop Display Diagnostics ▶ Service Info Simulation Reset Language ▼ ▼ ▼ Start simulation Reset Deutsch Enable? Sensor address Change now? VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 34 Info Device type Date of manufacture Last change using PC VEGAMET details VEGAMET 625 03. February 2004 Display now? Serial number Software version 26. September 2004 12345678 1.11.00 MAC address 00:30:87:D7:E8:E7 VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 35: Setup With Pactware

    VEGACONNECT. The necessary I²C interface in the front of VEGAMET 625 is available with all instrument versions. On the computer, connection is made via the RS232 interface. If this is not available on your PC or already occupied, it is also possible to use a USB - RS232 adapter (e.
  • Page 36 "Visual VEGA". Alternatively, independent, time or event- controlled transmission of measured values via e-mail is also possible. In addition, a remote parameter adjustment of VEGAMET 625 and the connected sensors is possible with PACTware™. VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 37 Ethernet directly to an existing PC network. Any standard patch cable can be used. When connecting a VEGAMET 625 directly to the PC, a cross-over cable must be used. To reduce EMC interference, you should mount the supplied ferrite bead on the Ethernet connection cable.

  • Page 38: Parameter Adjustment With Pactware

    For connection either the interface converter VEGACONNECT or one of the offered interfaces (Ethernet/RS232) in VEGAMET 625 is required. Not only VEGAMET 625 itself, but also connected VEGA HART sensors can be accessed. VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 39: Setup Web Server/E-Mail, Remote Enquiry

    Internet. A detailed description is available in the online help of PACTware™ and the VEGA DTMs as well as in the operating instructions manual "RS232/Ethernet connection". 7.3 Setup web server/e-mail, remote enquiry...

  • Page 40: Application Examples

    A VEGAFLEX 67 is necessary as a transmitter which delivers the distance to the upper medium as well as the distance to the interface. Via the adjustment in VEGAMET 625 the level, interface and layer thickness of the upper medium can be calculated and displayed.

  • Page 41: Pump Control

    Pump control 2: The upper switching point stipulates the switch-on point for the relay, whereas the lower switching point stipulates the switch-off point VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 42 On 2 On 1 Off 1 Off 2 Relais 1 Relais 2 t [h] Fig. 11: Example of a pump control Relay for pump 1 Relay for pump 2 Time in hours VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 43: Tendency Recognition

    In case of a probable failure, the pump should be switched off. Select in the DTM navigation section the menu items "Meas. Setup loop - Outputs - Relay". VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 44: Flow Measurement

    Depending on the type and version, each flume generates a Flume different backwater. The data of the following flumes are available in the instrument: Palmer-Bowlus-Flume Venturi flume, trapezoidal weir, rectangular weir V-Notch VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 45 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. VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 46 flow volume detection despite the "empty" flume. The option "Min. flow volume suppression" offers the possibility to suppress measured flow volumes below a certain percentage value for the flow volume detection. VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 47: Maintenance And Fault Rectification

    Maintenance and fault rectification 9 Maintenance and fault rectification 9.1 Maintenance When used as directed in normal operation, VEGAMET 625 is completely maintenance-free. 9.2 Fault rectification VEGAMET 625 offers maximum reliability. Nevertheless faults Causes of malfunction can occur during operation. These may be caused by the following, e.g.:...
  • Page 48 Carry out a fresh scaling, increase the distance between min. and max. scaling. E030 Invalid measured value à Check sensor parameter adjustment E034 EEPROM defective à Carry out a reset à Return instrument for repair VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 49 E116 Several relays are assignef to the pump control which are not configured to the same mode à All relays assigned to the pump control are set to the same mode VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 50: Instrument Repair

    Clean the instrument and pack it damage-proof Attach the completed form and possibly also a safety data sheet to the instrument Please ask the agency serving you for the address of the return shipment VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 51: Dismounting

    Correct disposal avoids negative effects to persons and environment and ensures recycling of useful raw materials. Materials: see "Technical data" If you cannot dispose of the instrument properly, please contact us about disposal methods or return. VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 52: Supplement

    0.1 % of sensor measuring range Connection cable 2-wire screened standard cable Relay outputs Quantity 3x operating relay, 1x fail safe relay Selection is made via the terminals, a mixed operation active/passive is not possible. VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 53 If inductive loads or stronger currents are switched through, the gold plating on the relay contact surface will be permanently damaged. The contact is then no longer suitable for switching low-level signal circuits. VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 54 Galvanic separation between relay output and digital part - Reference voltage 250 V - Insulation resistance 4 kV Potential separation between Ethernet interface and digital part - Reference voltage 50 V - Insulation resistance 1 kV VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 55 Potential separation between RS232 interface and digital part - Reference voltage 50 V - Insulation resistance 50 V Approvals ATEX II (1) GD, [EEx ia] IIC Deviating data in Ex applications: see separate safety instructions. VEGAMET 625 - Double channel Hart signal conditioning instrument...

  • Page 56: Dimensions

    12345678 13 14 15 16 9 10 11 12 17 18 20 21 22 23 24 25 26 27 28 130mm (5 ") 72mm (2 ") Fig. 14: Dimensions VEGAMET 625 VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 57 Supplement VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 58 Supplement VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 59 Supplement VEGAMET 625 - Double channel Hart signal conditioning instrument...
  • Page 60 All statements concerning scope of delivery, application, 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 2006 Technical data subject to alterations 28970-EN-060426...

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