Signal conditioning instruments VEGASCAN 693. Product Information

Transcription

1 Signal conditioning instruments VEGASCAN 693 Product Information

2 Content Content 1 Product description Type overview Mounting instructions Connecting to power supply 4.1 Preparing the connection Wiring plan Operation 5.1 Adjustment on VEGASCAN Adjustment with PACTware Visualisation and measured value enquiry Application examples Technical data Dimensions Product code Take note of safety instructions for Ex applications Please note the Ex specific safety information which you will find on our homepage and which come with the appropriate instrument with Ex approval. In hazardous areas you should take note of the appropriate regulations, conformity and type approval certificates of the sensors and power supply units. Each VEGASCAN 693 with Ex approval is an associated, intrinsically safe instrument and must not be installed in hazardous areas. 2 Signal conditioning instruments

3 Product description 1 Product description Functional principle In continuous measurement, the level in a vessel is detected by a sensor and then transferred to the VEGASCAN 693 signal conditioning instrument for further processing. Through an adjustment, the measured value can be adapted to the individual circumstances. The requested measurement parameter is indicated in the display and made available to the integrated web server and the interfaces for further processing. Hence the measuring signal can be displayed locally or remotely via HTML browser or an additional visualisation software. Area of application In conjunction with the appropriate sensors, VEGASCAN 693 signal conditioning instruments can be used in a variety of applications: l Level measurement l Gauge measurement l Process pressure measurement l Distance measurement l Temperature measurement l Remote enquiry l Stocktaking l VMI (Vendor Managed Inventory) VEGASCAN 693 also serves as (Ex) power supply unit for the connected sensors (active input). Power supply is carried on the same two-wire cable. As an option, a second input without sensor power supply (passive input) is available, enabling the connection of transmitters with own supply voltage (e. g. sensors in fourwire version). Depending on the instrument type, up to five independent sensors can be connected and their measured values processed. Safety The integrated fault monitoring detects faults of VEGASCAN 693 as well as those of connected sensors. If such a fault is detected, the integrated fail safe relay deenergises and a fault signal is displayed via the LEDs on the front panel. The instrument has the following approvals: l Ex approval as auxiliary, intrinsically safe instrument Operation Adjustment can be carried out either via the integrated indicating and adjustment unit or via a Windows PC with appropriate software (e.g. PACTware ). The connection is made either via the interface converter VEGACONNECT or one of the integrated interfaces (RS232/Ethernet). Signal conditioning instruments 3

4 Type overview 2 Type overview VEGASCAN 693 (Ethernet) VEGASCAN 693 (RS232) Applications: Functions: Functionality via integrated interfaces: General level measurement, stocktaking, visualisation in the network by Visual VEGA or via integrated web server, VMI adjustment, linearisation of individual vessel geometries, scaling for indication and digital output values easy connection to a network via Ethernet, transmission of messages and measured values via , easy setup via PC Sensor input: 15 HART sensors with/without transmitter power supply (5 with Ex) Outputs: Ethernet interface RS232 interface Indication on the instrument: Graphics-capable clear text indication with background lighting general level measurement, stocktaking, remote enquiry via modem by Visual VEGA, VMI adjustment, linearisation of individual vessel geometries, scaling for indication and digital output values remote enquiry by easy modem connection via RS232, suitable for analogue, ISDN and cellular phones, automatic internet dial-up and transmission of messages and measured values via , easy setup via PC 15 HART sensors with/without transmitter power supply (5 with Ex) Graphics-capable clear text indication with background lighting 4 Signal conditioning instruments

5 Mounting instructions 3 Mounting instructions Installation location Each series 600 instrument consists of the actual signal conditioninginstrument as well as a plug-in socket for carrier rail mounting. Because it has protection class IP 30 or IP 20, the instrument is intended to be used in switching cabinets. Mounting The plug-in socket is constructed for carrier rail mounting according to EN Power supply is connected to terminals 17 and 18. For neighbouring series 600 signal conditioning instruments, it is possible to continue connection L1 and N directly via the supplied bridges A o VEGA B o C o 1 o 2 o 3 o o o o 7 o 8 o 9 o o N o L1 12 o A o VEGA B o C o 1 o 2 o 3 o 4 o 5 o 6 o 7 o 8 o 9 o 10 o N 11 o L1 12 o A VEGASCAN 693 in Ex version is an auxiliary, 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. VEGASCAN 693 must not be opened. Fig. 1: Plug-in socket VEGASCAN Ex separating chamber 2 Ex coded pin with Ex versions 3 Type coded pin for VEGASCAN Bridges for looping the power supply Instrument coding All series 600 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 VEGASCAN 693 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. Signal conditioning instruments 5

6 Connecting to power supply 4 Connecting to power supply 4.1 Preparing the connection 4.2 Wiring plan Note safety instructions Always keep in mind the following safety instructions: l Connect only in the complete absence of line voltage l If overvoltage surges are expected, overvoltage arresters should be installed Take note of safety instructions for Ex applications In hazardous areas you should take note of the appropriate regulations, conformity and type approval certificates of the sensors and power supply units Select power supply The power supply can be V AC, 50/60 Hz or V DC L1 N Selecting connection cable Power supply of VEGASCAN 693 is connected with standard cable according to the national installation standards. Standard two-wire cable without screening can be used to connect sensors. If electromagnetic interference is expected, screened cable must be used. Cable screening and grounding Connect the cable screen on both ends to ground potential. In the sensor, the screen must be connected directly to the internal ground terminal. The ground terminal outside on the housing must be connected to the potential equalisation. If potential equalisation currents are expected, the screen connection on VEGASCAN 693 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. Select connection cable for Ex applications Take note of the corresponding installation regulations for Ex applications. In particular, make sure that no potential equalisation currents flow over the cable screen. In case of grounding on both sides this can be achieved by the use of a capacitor or a separate potential equalisation. Fig. 2: Wiring plan VEGASCAN 693 with two-wire sensors 1 Measurement data input with sensor supply (active input) 2 Measurement data input (passive input), not in Ex ia 3 Internal fail safe relay 4 Distributor 5 Voltage supply of VEGASCAN HART two-wire sensor with Multidrop address 1 7 HART two-wire sensor with Multidrop address 2 8 HART two-wire sensor with Multidrop address 3 Note: VEGASCAN 693 is designed for connection of up to 15 HART sensors (5 with Ex). Because they are accessed via different addresses in the HART multidrop mode, all sensors must be connected to the same sensor input terminals. These are either terminals 1/2 (active input) or terminals 3/4 (passive input). Mixed operation of active and passive input is not possible. Since this is a digital bus system, only one two-wire cable should lead to the sensors. A distributor can then be connected directly forward of the sensors. Information: l On the active input (terminal 1/2), VEGASCAN 693 provides the power for the connected sensors. Power supply and measurement data are transmitted over the same two-wire cable. This mode is provided for connection of measuring transducers without separate power supply (sensors in two-wire version). l On the passive input (terminals 3/4), the sensors are not powered - only the measured value is transmitted. This input is for sensors with their own, separate power supply (sensors in four-wire version). Connection and operation in Ex ia on the passive input is not possible. 6 Signal conditioning instruments

7 Operation 5 Operation 5.1 Adjustment on VEGASCAN The integrated indicating and adjustment unit is used for measured value display, adjustment and diagnosis of VEGASCAN 693 as well as the connected sensors. The indication and adjustment is carried out via the clear, graphic-capable display with background lighting as well as four keys in the front. The adjustment menu with selectable language is clearly structured and enables easy setup. Certain adjustment options are not possible or only partially available with the integrated indicating and adjustment unit. These are e.g. web server and functions. For such applications, the use of PACTware with appropriate DTMs is recommended. The entered parameters are generally saved in VEGASCAN 693, optionally also in PACTware on the PC. COM on ESC VEGASCAN 693 Fig. 3: Indicating and adjustment elements LC display 2 Adjustment keys 3 Communication interface for VEGACONNECT 4 Status indication operation 5 Status indication fail safe relay 6 Status indication interface activity OK Ser. No Adjustment with PACTware PACTware /DTM All series 600 signal conditioning instruments can be also adjusted via a Windows PC. You will need the configuration software PACTware and a suitable instrument driver (DTM) according to the FDT standard. In addition, the VEGA DTMs can be integrated in other frame applications according to FDT standard. For connection, either the interface converter VEGA- CONNECT or the RS232/Ethernet interface with appropriate cable is required. All currently available VEGA DTMs are provided in a DTM Collection with the current PACTware version on CD. This CD is available from the respective VEGA agency for a token fee. The basic version of this DTM Collection incl. PACTware is also available as a free-of-charge download from the Internet. The professional version also includes saving and printing of project documentation. A DTM licence for the respective instrument family can be purchased via the responsible VEGA agency. Connection of the PC via VEGACONNECT For temporary connection of the PC, e.g. for parameter adjustment, the connection can be made via the interface converter VEGACONNECT. The necessary I²C interface in the front of VEGASCAN 693 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. g. article no ). Key functions l [OK] key: - Move to the menu overview - Confirm selected menu - Edit parameter - Save value Fig. 4: Connection via VEGACONNECT 1 RS232 interface of the PC 2 I²C adapter cable for VEGACONNECT 3 (article no ) 3 VEGASCAN 693 l l l [->] key to select: - menu change - list entry - Select editing position [+] key: - Change value of the parameter [ESC] key: - interrupt input - jump to the next higher menu Connection of the PC via RS232 Via the RS232 interface, direct parameter adjustment and measured value enquiry of the instrument can be carried out via PACTware. Use the RS232 modem connection cable included in the delivery and an additionally connectednull modem cable (e. g. article no. LOG ). If there is no RS232 interface available on the PC or if it is already occupied, you can also use a USB-RS232 adapter (e.g. article no ). Signal conditioning instruments 7

8 Operation Fig. 5: Connection of the PC via RS232 1 RS232 interface of the PC 2 RS232 interlink cable (article no. LOG ) 3 RS232 modem connection cable (in the scope of delivery) 4 RS232 interface of VEGASCAN VEGASCAN 693 Connection of the modem via RS232 The RS232 interface is particularly suitable for easy modem connection. External analogue, ISDN and GSM modems with standard interface can be used. The necessary RS232 modem connection cable is in the scope of delivery of VEGASCAN 693. Via the software Visual VEGA, remote enquiry of the measured values and further processing are possible. As an alternative, also the independent, time or event-controlled transmission of measured values via is possible. A remote parameter adjustment of VEGASCAN 693 and the connected sensors is also possible with PACTware. 3 Fig. 6: Connection of the modem via RS232 1 Analogue, ISDN or GSM modem with RS232 interface 2 RS232 modem connection cable (in the scope of delivery) 3 RS232 interface of VEGASCAN VEGASCAN Fig. 7: Connection of the PC via Ethernet 1 Ethernet interface of the PC 2 Ethernet connection cable (Cross-Over cable) 3 Ethernet interface of VEGASCAN VEGASCAN Visualisation and measured value enquiry For visualisation or remote enquiry, the VEGASCAN 693 signal conditioning instruments are optionally equipped with an RS232 or Ethernet interface. RS232 interface The RS232 interface is suitable for simple modem connection to PACTware or Visual VEGA. External analogue, ISDN and GSM modems can be used for this purpose. Ethernet interface With the Ethernet interface, VEGASCAN 693 can be connected directly to an existing PC network. An own IP address is assigned to each VEGASCAN 693, under which it can be reached from everywhere in the network. Web browser The integrated web server can make the measured values available to any individual user in the company network. The data is presented as an HTML chart in a standard browser (e.g. Internet Explorer). Connection of the PC via Ethernet With the Ethernet interface, VEGASCAN 693 can be connected directly to an existing PC network. Any standard patch cable can be used. A cross-over cable must be used when connecting a VEGASCAN 693 directly to the PC. Each VEGASCAN 693 then gets its own IP address under which it can be accessed from anywhere in the network. The parameter adjustment of the instrument via PACTware can be carried out from any PC. The measured values can be made available to individual users within the company network as HTML chart. As an alternative, also the independent, time or event-controlled transmission of measured values via is possible. For more comprehensive requirements, it is recommended using the Visual VEGA software for measured value enquiry, processing and visualisation. 8 Signal conditioning instruments

9 Operation transmission When equipped with an Ethernet interface, the VEGASCAN 693 signal conditioning instruments can send s via an existing, company-internal mail server. With the RS232 interface and modem, the transmission is made via DFÜ network throughan external and Internet Provider. The transmission can be event or time-controlled. The transmission of fault messages is also possible. Visual VEGA Visual VEGA is a software for automatic enquiry of measured values, indication and archiving. The enquiry of measured values can be made via RS232, Ethernet or modem. The presentation can be divided in groups and displayed as bar graph, as a chart or as line graph of the history data. If certain thresholds are reached, a message can be displayed or an /sms can be transmitted. Visual VEGA is network capable and can be installed on any number of PCs. Visual VEGA is particularly suitable if a large number of measured values, also from different locations, should be automatically retrieved and consolidated. Individual measured values, messages or faults can be sent automaticallyvia , fax or SMS. It is also possible to specify that only the measured values and messages required by the individual user are made available to him. Via the measured value archive, any historical level data can be recalled and used for tendency indication. 5.4 Application examples Stock management of a tank farm via network Requirement The stock of a tank farm should be measured and monitored continuously. The measured values should be made available to the scheduler and the sales department. In addition, a message should be triggered automatically if a level drops below a certain value. Solution One or several VEGASCAN 693 with Ethernet interface enquire cyclically the connected HART sensors. The measured values are processed in VEGASCAN 693 and transferred in the requested form and unit to the integrated web server. The measured values can be now displayed on the computer of every user in the company network. The necessary min. quantity is also entered for each vessel. An is sent to the respective person via the company-internal mail system if this level is decreased. Set up l Connection of the sensors and VEGASCAN 693 l Assignment of sensor HART addresses l Entry of IP address, host name, date/time on VEGASCAN 693 l Installation of PACTware and DTMs on individual network PC l Parameter adjustment of the sensors (e.g. false echo memory) via PACTware l Parameter adjustment of VEGASCAN 693 (adjustment, scaling, linearization) via PACTware l Setup of the web and mail server (see DTM online help) l Indication of measured values through web browser by entering the IP address of VEGASCAN 693 Stock management of several tank farms via modem Requirement A supplier wants to count the stock of the tank farms of his customers and supply them automatically, if necessary. Via an indication (updated several times a day) and access to the levels of the previous days and weeks, the requirement/consumption of his customers should be estimated and the deliveries planned accordingly. This ensures foresighted purchasing and better utilization of the trucks. In addition, a message should be sent if the levels fall below certain predefined minimum values. By doing this, he can guarantee his customers a continuous supply of raw materials for production processes, without the customer having to take care of the purchase and ordering. This ensures better customer loyalty and continuous orders. Solution A VEGASCAN 693 with standard interface and modem (conventional telephone network or GSM) is installed at the customer's location. From the supplier's location, Visual VEGA contacts at regular, predefined intervals all VEGASCAN 693 in the field and retrieves the current measured values. The indication receives the current levels of each customer as well as the values of the past 30 days in a line graph. Via the network, any number of persons can have these values displayed at their work station with Visual VEGA (server/client principle). For each measurement loop, a certain measured value threshold is defined in Visual VEGA. If the value falls short of this threshold, Visual VEGA generates an appropriate message on the PC, and if desired, also sends an to certain persons. Signal conditioning instruments 9

10 Technical data 6 Technical data General data Series Weight Housing materials Socket materials Connection terminals - Type of terminal Screw terminal - Max. wire cross-section 1.5 mm² (AWG 16) Module unit with plug-in socket for mounting on carrier rail 35 x 7.5 according to EN g (1.10 lbs) Noryl SE100, Lexan 920A Noryl SE100, Noryl SE1 GFN3 Voltage supply Operating voltage Max. power consumption V AC/DC, 50/60 Hz 12 VA; 7.5 W Sensor input Number of sensors 15 x VEGA HART sensors (5 x with Ex version) Type of input (selectable) 1) - Active input Sensor power supply by VEGASCAN Passive input sensors have an own power supply Measured value transmission - HART protocol (Multidrop) digital for VEGA HART sensors Terminal voltage - Non-Ex version approx. 22 V with 15 sensors (60 ma) - Ex version approx. 15 V with 5 sensors (20 ma) Current limitation approx. 85 ma (26 ma with Ex) Adjustment range HART sensor - Adjustment range ±10 % from sensor measuring range - min. adjustment delta 0.1 % from sensor measuring range Connection cable two-wire screened standard cable Fail safe relay Contact Floating spdt Contact material AgSnO2, hard gold-plated Turn-on voltage 10 mv DC, 250 V AC/DC Switching current 10 µa DC, 3 A AC, 1 A DC Breaking capacity 50 mw, 750 VA, 18 W bei U 60 V DC, 40 W bei U 40 V DC 2) Version with Ethernet interface Quantity Data transmission Plug connection 1 x, cannot be combined with RS232 10/100 Mbit RJ45 Version with RS232 interface Quantity Plug connection 1 x, cannot be combined with Ethernet RJ45 (modem connection cable on 9-pole D-SUB in the scope of delivery) Indications 1) 2) Measured value indication - graphic-capable LC display (50 x 25 mm), background lighting digital and quasianalogue indication - Max. indicating range LED displays - Status indication operating voltage 1 x LED green - Status indication fault signal 1 x LED red - Status indication interface activity 1 x LED green Selection is made via the terminals, a mixed operation active/passive is not possible. 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. 10 Signal conditioning instruments

11 Technical data Operation Adjustment elements PC adjustment 4 x keys in the front for menu adjustment PACTware with VEGA DTM (DTM Collection) Ambient conditions Ambient temperature Storage and transport temperature C ( F) C ( F) Electrical protective measures Protection - Instrument IP 30 - Plug-in socket IP 20 Overvoltage category II Protection class II Electrical separating measures Reliable separation according to VDE 0106 part 1 between power supply, input and digital part - Reference voltage 250 V - Isolation resistance 3.75 kv Galvanic separation between relay output and digital part - Reference voltage 250 V - Isolation resistance 4 kv Potential separation between Ethernet interface and digital part - Reference voltage 50 V - Isolation resistance 1 kv Potential separation between RS232 interface and digital part - Reference voltage 50 V - Isolation resistance 50 V Approvals 3) ATEX II (1) GD, [EEx ia] IIC 3) Deviating data in Ex applications: see separate safety instructions. Signal conditioning instruments 11

12 Dimensions 7 Dimensions VEGASCAN mm (3 27/64") 55mm (2 11/64") COM ESC on OK Ser. No mm (4 21/64") 119mm (4 11/16") mm (5 1/8") 72mm (2 53/64") Fig. 8: Dimensions VEGASCAN Signal conditioning instruments

13 Product code 8 Product code Approval XX without CX ATEX II (1) G D [EEx ia] IIC Connection R RS 232 connection incl.data logger and connection cable E Ethernet incl. data logger SCAN693. Signal conditioning instruments 13

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16 VEGA Grieshaber KG Am Hohenstein Schiltach Germany Phone Fax Subject to change without prior notice You can find at downloads of the following l operating instructions manuals l menu schematics l software l certificates l approvals and much, much more