Vega VEGAMET 841 Operating
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Vega VEGAMET 841 Operating

Controller in field housing for a continuously measuring analogue level sensor
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Operating Instructions
Controller in field housing for a
continuously measuring analogue level
sensor
VEGAMET 841
4 ... 20 mA
Document ID: 58864

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Summary of Contents for Vega VEGAMET 841

  • Page 1 Operating Instructions Controller in field housing for a continuously measuring analogue level sensor VEGAMET 841 4 … 20 mA Document ID: 58864...

  • Page 2: Table Of Contents

    Setup with smartphone/tablet (Bluetooth) ................28 Preparations ........................28 Connecting ........................28 Parameter adjustment ....................29 Setup with PC/notebook (Bluetooth) ................... 30 Preparations ........................30 Connecting ........................30 Parameter adjustment ....................31 10 Applications and functions ....................32 VEGAMET 841 • 4 … 20 mA...
  • Page 3 14.1 Technical data ........................ 51 14.2 Overview applications/functionality ................54 14.3 Dimensions ........................56 14.4 Industrial property rights ....................59 14.5 License information for Open Source Software .............. 59 14.6 Trademark ........................59 Editing status: 2020-03-06 VEGAMET 841 • 4 … 20 mA...

  • Page 4: About This Document

    Symbols used Document ID This symbol on the front page of this instruction refers to the Docu- ment ID. By entering the Document ID on www.vega.com you will reach the document download. Information, note, tip: This symbol indicates helpful additional infor- mation and tips for successful work.

  • Page 5: For Your Safety

    During work on and with the device, the required personal protective equipment must always be worn. Appropriate use VEGAMET 841 is a universal controller for connection of a 4 … 20 mA/HART sensor. You can find detailed information about the area of application 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.

  • Page 6: Installation And Operation In The Usa And Canada

    Canadian Electrical Code. Safety instructions for Ex areas For Ex applications, only devices with corresponding Ex approval may be used. Observe the Ex-specific safety instructions. These are an integral part of the operating instructions and are enclosed with every device with Ex approval. VEGAMET 841 • 4 … 20 mA...

  • Page 7: Product Description

    The respective scope of delivery results from the order specification. Scope of this operating This operating instructions manual applies to the following instrument instructions versions: • Hardware version from 1.0.0 • Software version from 1.0.0 VEGAMET 841 • 4 … 20 mA...

  • Page 8: Principle Of Operation

    Principle of operation Application area Measured value visualisation, limit value monitoring for storage tanks and pump stations, flow measurement in open channels and weirs. The controller VEGAMET 841 is specialized in the processing and clear reproduction of process states. A generous display for data VEGAMET 841 • 4 … 20 mA...

  • Page 9: Adjustment

    4 … 20 mA sensor. With the VEGAMET 841 limit values can be safely monitored and relays, such as an overfill protection according to WHG, can be switched. The equipment includes functions for adjustment and pump control, which allow a wide range of individual adaptations. The VEGAMET 841 is suitable for all industrial sectors, including chemi- cals, building materials, water and waste water.

  • Page 10: Packaging, Transport And Storage

    Protected against solar radiation • Avoiding mechanical shock and vibration • Storage and transport Storage and transport temperature see chapter "Supplement - temperature Technical data - Ambient conditions" • Relative humidity 20 … 85 % VEGAMET 841 • 4 … 20 mA...

  • Page 11: Accessories

    The sun protection can be used for wall and pipe mounting. Pipe mounting set The pipe mounting set is used for optimal and safe mounting of the devices in horizontal and vertical mounting on pipes. VEGAMET 841 • 4 … 20 mA...

  • Page 12: Mounting

    A high-pressure cleaner may not be used for cleaning. Mounting instructions Wall mounting Fix the mounting plate to the wall using the screws and dowels sup- plied as shown in the figure below. Make sure that the arrows on the mounting plate point upwards. VEGAMET 841 • 4 … 20 mA...
  • Page 13 ø7 mm (0.28") ø13 mm (0.51") Fig. 3: Mounting plate for wall mounting VEGAMET 841 Tube mounting The optionally available mounting accessories are required for tube mounting. The kit consists of two pairs of mounting brackets and four mounting screws M6 x 100.
  • Page 14 Fig. 5: Mounting sun protection with pipe mounting VEGAMET 841 Sun shade Mounting plate 4 screws M6 x 100 Mounting brackets Pipe for diameter 29 … 60 mm (1.14" to 2.36") VEGAMET 841 • 4 … 20 mA...

  • Page 15: Connecting To Power Supply

    Through the selection of the terminals, you can choose between ac- tive and passive operation of the sensor input. • In active mode, the controller provides the power for the con- nected sensors. Power and measurement data are transmitted With an ambient temperature ≥ 50 °C (122 °F) the connection cable should be suitable for an ambient temperature which is at least 20 °C (36 °F) higher. VEGAMET 841 • 4 … 20 mA...

  • Page 16: Connecting

    The VEGAMET 841 can also be looped into the existing circuit like a normal ammeter. Note: With a VEGAMET 841 in Ex version, the passive input is not available. Connecting Connection technology The voltage supply and inputs and outputs are connected via the spring-loaded terminals.

  • Page 17: Switch-On Phase

    Output signals are set to failure, background lighting of the display lights red The current measured values are then displayed and transmitted to the outputs. The background lighting of the display changes to white. Passive input not available for Ex version VEGAMET 841 • 4 … 20 mA...

  • Page 18: Access Protection

    However, unlike the Bluetooth access code, it must be re-entered for each unlock. When using the adjustment app or DTM, the stored device code is then suggested to the user for unlocking. VEGAMET 841 • 4 … 20 mA...

  • Page 19: Storing The Codes In Myvega

    "PINs and Codes". This greatly simplifies the use of additional adjust- ment tools, as all Bluetooth access and device codes are automati- cally synchronized when connected to the "myVEGA" account VEGAMET 841 • 4 … 20 mA...

  • Page 20: Set Up With The Integrated Display And Adjustment Unit

    Adjustment system Function The integrated display and adjustment unit is used for measured val- ue display, adjustment and diagnosis of the VEGAMET 841. Display and adjustment are carried out via four keys and a graphic-capable display with background lighting. Certain adjustment options are not available or only partially available with the integrated display and adjustment unit, e.g.

  • Page 21: Display

    The menu items are displayed according to the following presentation: Max. adjustment Sensor value at 100% : 20.000 Actual measured sensor value : 19.970 Fig. 10: Menu item display (example) Sensor measured value at 100 % Current sensor measured value VEGAMET 841 • 4 … 20 mA...

  • Page 22: Menu Overview

    Information: When using PACTware and the respective DTM or the VEGA Tools app, additional settings can be carried out which are not possible or only partly possible with the integrated display and adjustment unit.
  • Page 23 When using the display and adjustment unit, the adjustment unit is always "mA". When using PACTware/DTM or the VEGA Tools app, VEGAMET 841 • 4 … 20 mA...
  • Page 24 The menu item "Behaviour in case of failure" defines how the relay behaves if the assigned measuring point is disturbed. Here it can be selected whether the switching state of the relay remains unchanged or whether the relay is switched off in the event of a failure. VEGAMET 841 • 4 … 20 mA...
  • Page 25 Menu language In the menu item "Display - Menu language", the requested language can be adjusted. The following languages are available: • German • English • French • Spanish • Italian • Dutch VEGAMET 841 • 4 … 20 mA...
  • Page 26 "Access protection" Caution: With protected parameter adjustment, adjustment via the VEGA Tools app as well as PACTware/DTM and other systems is also blocked. You can find further details in chapter "Access protection". Reset With a reset to basic setting, all settings except the display language and the Bluetooth access code are reset to factory settings.
  • Page 27 The simulation is automatically terminated after approx. 60 minutes. Device-TAG You can assign an unambiguous name to VEGAMET 841 to the Device-TAG via DTM/VEGA Tools app. This function is recommended when several instruments are implemented and a good documenta- tion of larger systems is required.

  • Page 28: Setup With Smartphone/Tablet (Bluetooth)

    Play Store" or "Baidu Store" to your smartphone or tablet. Connecting Connecting Start the VEGA Tools app and select the function "Setup". The smart- phone/tablet searches automatically for Bluetooth-capable instru- ments in the area. The devices found are listed and the search is automatically contin- ued.

  • Page 29: Parameter Adjustment

    The selected menu item, recognisable by the colour change, is dis- played in the right half. Fig. 11: Example of an app view - Setup adjustment Enter the requested parameters and confirm via the keyboard or the editing field. The settings are then active in the device. Close the app to terminate connection. VEGAMET 841 • 4 … 20 mA...

  • Page 30: Setup With Pc/Notebook (Bluetooth)

    Enter Bluetooth access For authentication, enter in the next menu window the 6-digit code Bluetooth access code: You can find the code on the information sheet "PINs and Codes" in the device packaging: VEGAMET 841 • 4 … 20 mA...

  • Page 31: Parameter Adjustment

    DTMs are compiled in a DTM Collec- tion. The DTMs can also be integrated into other frame applications according to FDT standard. Fig. 12: Example of a DTM view - Adjustment VEGAMET 841 • 4 … 20 mA...

  • Page 32: Applications And Functions

    10 Applications and functions The controller contains already preset applications and functions, which can be easily adjusted by means of an application assistant via PACTware/DTM or the VEGA Tools app. The following applications/ functions are described here as examples. •...
  • Page 33 If this is not possible, the corresponding current value can also be entered. For the min. adjustment, empty the vessel down to the min. level or enter the cor- responding current value. VEGAMET 841 • 4 … 20 mA...

  • Page 34: Pump Station With Pump Control Function

    The intelligent control of several pumps can be easily adjusted by the controller. VEGAMET 841 • 4 … 20 mA...
  • Page 35 Relay is free i.e. not assigned to the pump control Setup The application wizard guides you through the various configuration possibilities and options. The following steps are performed: 1. Select application Select the application "Pumping station" from the options offered. 2. Assign measuring loop name VEGAMET 841 • 4 … 20 mA...
  • Page 36 Pump fault messages can also be processed via the digital inputs. This pump control system offers two different options: • Pump control 1: The upper switching point determines the switch-off point for the relay, whereas the lower switching point determines the switch-on point VEGAMET 841 • 4 … 20 mA...
  • Page 37 HiHi level is exceeded and the dry weather pump is switched off. The large pump then remains in operation until the switch-off point is reached. If the level rises again, the dry weather pump switches back on first. There is also the possibility of using multiple large pumps in alternat- ing mode. The algorithm for the switching function is then determined by the pump control mode. VEGAMET 841 • 4 … 20 mA...
  • Page 38 Before the newly selected pump switches on, the preset switch-on delay for this pump must have expired. VEGAMET 841 • 4 … 20 mA...
  • Page 39 • Relay 3 lower switching point = 10.0 % The function of pump control 4 is shown in detail in the following dia- gram. The previously described example is used as a basis. VEGAMET 841 • 4 … 20 mA...
  • Page 40 Fig. 19: Example of a pump control with option "Dry weather pump" Note: If the option "Dry weather pump" is activated, only the mode "Alternat- ing pump operation" will be available, i.e. only one pump at a time is in operation. VEGAMET 841 • 4 … 20 mA...

  • Page 41: Flow Measurement Flume/Weir

    It is also possible to totalize the flow rate by means of a totalizer, the result is shown on the display (e.g. in m ). In addition, the flow rate can be output via a corresponding number of pulses on the relay/current output (flow rate pulse). A sampling pulse can also be configured. VEGAMET 841 • 4 … 20 mA...
  • Page 42 3 ... 4 h 90° 90° Fig. 20: Flow measurement with rectangular flume: h = max. filling of the max. rectangular flume Overfall orifice (side view) Upstream water Tailwater Overfall orifice (view from tailwater) VEGAMET 841 • 4 … 20 mA...
  • Page 43 When using analogue 4 … 20 mA sensors, the measuring range should be set accordingly in the sensor to achieve maximum ac- curacy. This measuring range must also be stored in the assistant together with the sensor type and the measuring unit. VEGAMET 841 • 4 … 20 mA...
  • Page 44 Enter the adjustment values of the measuring point for 0 % and for 100 %. 7. Scaling Enter the measured value and unit (e.g. flow rate in m³/h) and the corresponding scaling values for 100 % and 0 % (e.g. 100 m³/h, 0 m³/h). 8. Activate/define totalizer The flow value can also be summed up and displayed as flow rate. Two independent totalizers are available for this purpose. Define the measuring unit and the display format. In addition, a value for leak flow volume suppression can be defined. VEGAMET 841 • 4 … 20 mA...

  • Page 45: Diagnostics And Servicing

    • Evaluation of fault messages • Checking the input/output signal A smartphone/tablet with the VEGA Tools app or a PC/notebook with the software PACTware and the suitable DTM offer you further com- prehensive diagnostic possibilities. In many cases, the causes can be determined in this way and the faults eliminated.
  • Page 46 Carry out a reset Send instrument for repair F037 RAM defective Switch the instrument off and on Carry out a reset Send instrument for repair F040 Hardware error Switch the instrument off and on Carry out a reset General hard- Send instrument for repair ware error VEGAMET 841 • 4 … 20 mA...

  • Page 47: Software Update

    Function check Error code Cause Rectification C029 Simulation active Finish simulation Simulation 11.4 Software update An update of the device software is possible via the Bluetooth inter- face. The following components are required: VEGAMET 841 • 4 … 20 mA...

  • Page 48: How To Proceed If A Repair Is Necessary

    • Attach the completed form and, if need be, also a safety data sheet outside on the packaging • Ask the agency serving you to get the address for the return ship- ment. You can find the agency on our homepage. VEGAMET 841 • 4 … 20 mA...

  • Page 49: Dismount

    12.2 Disposal The device is made of recyclable materials. For this reason, it should be disposed of by a specialist recycling company. Observe the ap- plicable national regulations. VEGAMET 841 • 4 … 20 mA...

  • Page 50: Certificates And Approvals

    That is why we have introduced an environment management system with the goal of continuously improving company environmental pro- tection. The environment management system is certified according to DIN EN ISO 14001. Please help us fulfil this obligation by observ- ing the environmental instructions in chapters "Packaging, transport and Lagestoragerung", "Disposal" of these operating instructions. VEGAMET 841 • 4 … 20 mA...

  • Page 51: Supplement

    ≤ 3.6 mA Detection shortcircuit ≥ 21 mA Adjustment range 4 … 20 mA sensor Ʋ Empty adjustment 2.4 … 21.6 mA Ʋ Full adjustment 2.4 … 21.6 mA Temperature error relating to 20 mA 0.008 %/K VEGAMET 841 • 4 … 20 mA...
  • Page 52 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. Depending on the local conditions VEGAMET 841 • 4 … 20 mA...
  • Page 53 Electrical protective measures Protection rating IP66/IP67 acc. to IEC 60529, Type 4X acc. to UL 50 Altitude above sea level up to 5000 m (16404 ft) Overvoltage category (IEC 61010-1) Protection class Pollution degree VEGAMET 841 • 4 … 20 mA...

  • Page 54: Overview Applications/Functionality

    Damping • • • • • • Linearization preset curves • • • • • • Linearization dimensions ISO standard • • • • • OP: Operating Panel (integrated display and adjustment unit) VEGAMET 841 • 4 … 20 mA...
  • Page 55 • • Diagnosis Status • • • • • • Diagnosis measured values • • • • • • Simulation sensor value, %, lin% value, scaled values • • • • • • VEGAMET 841 • 4 … 20 mA...

  • Page 56: Dimensions

    • • • • • • Bluetooth access code • • • • • • Activate/deactivate Bluetooth communication • • • • • 14.3 Dimensions 162 mm (6.38") Fig. 22: Dimensions VEGAMET 841 VEGAMET 841 • 4 … 20 mA...
  • Page 57 14 Supplement 160 mm (6.30") 11 mm 82 mm (0.43") (3.23") Fig. 23: Dimensions mounting plate 142 mm (5.59") 82 mm ca. 141 mm (3.23") (5.55") 198 mm (7.80") Fig. 24: Dimensions sun shade VEGAMET 841 • 4 … 20 mA...
  • Page 58 14 Supplement 48...84 mm (1.89"...3.31") 20 mm 20 mm (0.79") (0.79") Fig. 25: Dimensions Brackets for tube mounting VEGAMET 841 • 4 … 20 mA...

  • Page 59: Industrial Property Rights

    Les lignes de produits VEGA sont globalement protégées par des droits de propriété intellec- tuelle. Pour plus d'informations, on pourra se référer au site www.vega.com. VEGA lineas de productos están protegidas por los derechos en el campo de la propiedad indus- trial. Para mayor información revise la pagina web www.vega.com.
  • Page 60 Reset 26 Horizontal cylindrical tank 23 Hysteresis 34 Scaling 24, 32 Sensor input – Active 15 Indication – Passive 15 – Background lighting 25 Serial number 8 – Backlight 25 Service hotline 45 VEGAMET 841 • 4 … 20 mA...
  • Page 61 INDEX Short-circuit 46 Simulation 27 Spherical tank 23 Storage tank 32 Sun shade 14 Switching window 24 Tendency 24 Trapezoidal weir 42 Triangular overfall 42 Type label 8 Venturi flume 42 V-Notch 42 VEGAMET 841 • 4 … 20 mA...
  • Page 62 Notes VEGAMET 841 • 4 … 20 mA...
  • Page 63 Notes VEGAMET 841 • 4 … 20 mA...
  • Page 64 Subject to change without prior notice © VEGA Grieshaber KG, Schiltach/Germany 2020 VEGA Grieshaber KG Phone +49 7836 50-0 Am Hohenstein 113...

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