Precisa 520 PT Operating Instructions Manual
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Precisa 520 PT Operating Instructions Manual

Semi-micro and analytical balances
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S W I S S M A D E
520 PT
Operating Instructions
350-8182-000 draft 2

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  • Page 1 S W I S S M A D E 520 PT Operating Instructions 350-8182-000 draft 2...
  • Page 2 520 PT Identification Operating Instructions, Precisa 520, Semi-micro and analytical balances PT Item number 350-8182-000 Index draft 2 February 2021 Subject to technical modifications www.precisa.com Copyright No reproduction in any form of this document, in whole or in part, may be made without written authorization from Precisa Gravimetrics AG.

  • Page 3: Table Of Contents

    520 PT Table of contents Table of contents Your new balance ...................... 5 About this manual ..................... 5 1.1.1 Symbols and conventions ................... 5 1.1.2 Illustrations and buttons ..................... 5 Unpacking ........................ 5 Transport and shipping ....................5 Storage ........................6 Inspection and assembly ....................
  • Page 4 520 PT Table of contents System Settings ......................26 Weighing parameter....................27 6.1.1 Refresh rate ......................27 6.1.2 Environment ......................27 6.1.3 Filter profile ......................28 6.1.4 Value release ......................28 6.1.5 Auto zero ........................ 28 6.1.6 Quick tare ....................... 28 6.1.7...
  • Page 5 520 PT Table of contents 9.4.1 Identification, Mode ....................63 9.4.2 Example for Identifications ..................63 Add-On: Protocol ..................... 65 10.1 Protocol Header ....................... 65 10.2 Protocol Measurement ....................66 10.3 Protocol Footer ......................68 10.4 Protocol text paragraphs................... 68 10.5...

  • Page 6: Your New Balance

    520 PT Your new balance 1 Your new balance Thank you for purchasing a new Precisa balance from the 520 series. 1.1 About this manual This manual has been written to help you working with your new balance. Read this manual thoroughly before use and keep it where all those who use the instrument will read it.

  • Page 7: Storage

    520 PT Your new balance  Ensure that there are no significant temperature fluctuations during transportation and that the balance does notbecome damp (condensation). NOTE The balance should preferably be dispatched and transported in the original packaging to avoid transportation damage.

  • Page 8: Inspection And Assembly

    520 PT Your new balance 1.5 Inspection and assembly Inspect delivery for complete supply immediately on unpacking all components Components supplied, depending on balance type  Balance  Pan holder  Weighing pan  Protective ring for A  Centring ring for M balances ...

  • Page 9: Safety Instructions And Conformity

    520 PT Your new balance 1.6 Safety instructions and conformity 1.6.1 Safety instructions When the balance is used in environments with increased safety requirements, the relevant precautions must be taken.  The balance must only be operated with a power adapter and power cable in perfect conditions.

  • Page 10: Conformity

    Electronic Balance: Precisa Series 520 PT Precisa Series 520 PB Mark applied EU Directive Standards 2014/30/EU EN61326 2014/35/EU EN61010 Date: 12.06.2020 Signature: R. Grolimund R & D Manager Precisa Gravimetrics AG , Moosmattstrasse 32 , Postfach 352 , CH-8953 Dietiko Precisa Gravimetrics AG...

  • Page 11: Basics

    520 PT Basics 2 Basics 2.1 Choosing a suitable location The balance location must be chosen in such a way as to guarantee perfect operation of your balance, so that the allowable ambient conditions and prerequisites are met and maintained: ...

  • Page 12: Turning On The Balance

    520 PT Basics 2.3 Turning on the balance The following safety recommendations must be observed when connecting the balance to the mains: DANGER The balance may only be operated with the power adapter and power cable supplied. Before connecting the device to the mains, be sure that the operating voltage stated on the device and on the power adapter and power cable agrees with the local mains voltage.

  • Page 13: Levelling

    520 PT Basics 2.4 Levelling To function properly, the balance must be precisely horizontal. Thatfor it is equipped with an electronic levelling device which makes appear a visual warning on the display if the balance is tilted outside the internally stored levelling tolerances. To readjust the levelling ...

  • Page 14: Adjusting The Balance

    520 PT Basics 2.5 Adjusting the balance Since the earth's gravity is not the same everywhere, each balance must - in accordance with the underlying physical weighing principle - be adjusted to compensate for the gravity at each location. This adjustment process must be carried out on initial installation and after each subsequent relocation.

  • Page 15: Working With The Balance

    520 PT Basics If you start the adjustment by a softkey within an application, quit the adjustment with the softkey (Close). NOTE The balance must be adjusted on initial installation and after every relocation. If you work in accordance with Good Laboratory Practice (GLP), observe the prescribed intervals between calibrations (adjustments).

  • Page 16: Verified Balances

    520 PT Basics 2.8 Verified balances Verified balances are provided with the EC/OIML certification, or meet the local verification regulations. On verified balances, the balance range and certain weighing functions differ from standard. NOTE Your local dealer will be happy to assist you at any time if you have any questions about verifying your balance or working with verified balances.

  • Page 17: Discover The Capabilities Of The Balance

    520 PT Discover the Capabilities of the balance 3 Discover the Capabilities of the balance The balance is equipped with a high resolution touch screen panel and 6 fix integrated operation keys. The ease of operation is maintained by a highly intuitive user Interface. The touch panel is operable through standard laboratory rubber and silicon gloves as well as cotton gloves.

  • Page 18: Navigation

    520 PT Discover the Capabilities of the balance 3.4 Navigation There are 3 main screens: Current application screen where you perform the weighings and measurements (weighing, counting, …) Application screen to choose the application and the device settings. User screen to select the user or to define new users Press the [Applications] key to enter the application screen.

  • Page 19: Screen Shot

    520 PT Discover the Capabilities of the balance 3.5 Screen shot To create meaningful SOP’s or in a disscusions with customers service and support a screen shot is often very useful. To save a screen shot:  Plug a USB memory stick into the USB HOST connector on the back side of the balance, ...

  • Page 20: The Basic Structure Of The Screen

    520 PT The basic structure of the screen 4 The basic structure of the screen Some components of the screen are always present and therefore fix positioned. 4.1 Header In the header line, the balance-specific data such as the maximum weighing range “Max”, the minimum weight “Min”, the readability “d”, the verification interval "e", the user ‘Administrator’,...

  • Page 21: Current Application Screen

    520 PT Current application screen 5 Current application screen Depending on the application and its settings, various components are displayed on the screen. 5.1 Context Menu, Add On’s By tapping the context menu, the Add-On functions and other specific settings available for the current application are opened.

  • Page 22: Customizer Tab

    520 PT Current application screen NOTE Further information on Add-On settings can be found in the cross- reference. 5.2 Customizer Tab The Customizer Tab leads to an easy to handle screen layout and protocol editor. By providing drag and drop features, additional buttons, info-lines or protocol stacks can be executed fast and intuitively.

  • Page 23: Second Display

    520 PT Current application screen 5.6 Second display For certain applications, the weight is displayed here. For example, in the application counting in the main display shows the number of pieces and in the second display the actual weight. 5.7 Capacity display Graphic display how much of the entire weighing range is being used.

  • Page 24: Main Display

    520 PT Current application screen 5.9 Main display The value that matches the application is shown in large format in the main display. Appropriate work instructions and notes are displayed during a workflow. 5.10 Stability Indicator The stability indicator combines a variety of functions such as the release of results, an indication of the environmental conditions and a prediction of when a stable display of the weight value has been reached.

  • Page 25: Define Soft Buttons

    520 PT Current application screen 5.11.1 Define soft buttons  By selecting a function the background colour changes to green. This indicates that the fucntion is ready to be placed as a soft button on the ‘Action bar’.  If a second function is positioned on an occupied soft button, a group is formed. This group can be given a name with the pencil.

  • Page 26: Warnings, Status Reports

    520 PT Current application screen  If a soft button from the ‘Action bar’ is select, it appears red and is deleted by pressing the trash can icon. 5.12 Warnings, status reports At this point, warnings are displayed, e.g. that the minimum weight has not yet been reached or status messages about the printing process.

  • Page 27: System Settings

    520 PT System Settings 6 System Settings The basic settings of the balance can be found on the application screen.  Enter the application applications screen and call up ‘Settings”.  Swiping up and down gives you access to all system settings.

  • Page 28: Weighing Parameter

    520 PT System Settings 6.1 Weighing parameter To ensure proper operation of your balance, the balance location must be selected so that the permissible ambient conditions are met. Individual adjustments of the weighing parameters allow further improvements to be achieved.

  • Page 29: Filter Profile

    520 PT System Settings 6.1.3 Filter profile The filter profiles are used to adapt the transient response of the balance to the special requirements of the application, e.g. for slow processes such as weight loss due to evaporation or dynamic processes such as dosing applications with liquids or powders.

  • Page 30: Rs232 Serial Port

    520 PT System Settings  Network: LAN connector on the backside of the balance or with an USB-WLAN adapter plugged into the USB HOST connector NOTE If a channel is not physically available, the transfer may take a long time, because the balance only stops the transfer after a certain timeout.
  • Page 31 520 PT System Settings 6.2.1.2 Mode ‘Measurement transfer’ In this mode, the current weight value is transferred at the push of a soft button, if desired with a time stamp, device ID, net / gross / tare. For the definition of the format of the measured value transmission, see 6.4 Measurement transfer.

  • Page 32: Usb Serial Port

    520 PT System Settings 6.2.2 USB serial Port For a correct data transmission to a PC it must be connected to the USB DEVICE connector on the back side of the balance and the usual parameters of an serial interface must be set.
  • Page 33 520 PT System Settings The soft button {Transfer} must be activated in the ‘Action bar’ (see 5.11 Action bar and soft button customizing) for the measurement transfer. ‘Time stamp’, ‘Device ID’ and ‘Net/Gross/Tare’ are optionally output with the measured value, whereby the gross and tare values are output on separate lines.

  • Page 34: Mass Storage

    520 PT System Settings 6.2.3 Mass storage Select ‘Mass storage’ to transfer the data to a USB stick. If an existing USB flash drive is used, the log or measured value output (depending on the setting) is saved in a file on the stick in the selected format.
  • Page 35 520 PT System Settings 6.2.3.2 Mode ‘Measurement transfer’ In this mode, the current weight value is transferred at the soft button {Transfer}, if desired with a time stamp, device ID, net / gross / tare. For the definition of the format of the measured value transmission, see 6.4 Measurement transfer.

  • Page 36: Network

    520 PT System Settings Press the soft button {Transfer} to transfer the current value. 6.2.4 Network The balance can be integrated into a network. For this purpose, a LAN cable or a USB WLAN adapter must be plugged at the bottom side of the balance terminal. For correct data transmission, the usual parameters of a network connection must be set appropriately on the scale and the receiver.
  • Page 37 520 PT System Settings The soft button {Transfer} must be activated in the ‘Action bar’ (see 5.11 Action bar and soft button customizing) for the measurement transfer. ‘Time stamp’, ‘Device ID’ and ‘Net/Gross/Tare’ are optionally output with the measured value, whereby the gross and tare values are output on separate lines.
  • Page 38 It is important to know whether to assign to the balance a static IP address or an automatic IP address from a DHCP server. In addition, the network administrator knows the port of the remote terminal of the network connection; for Precisa printers or software, this is normally port 2101 or 4001.
  • Page 39 520 PT System Settings Setting Up in Server Communication Mode (mostly used) In this mode, a device connects to the balance. In addition to the IP address of the balance, the device must also know the local port of the balance. If this is not explicitly given, use port 2101.
  • Page 40 520 PT System Settings Connection status of the balance as a Server with LAN and DHCP set in the mode ‘Protocol”. Precisa Gravimetrics AG...
  • Page 41 520 PT System Settings Connection status of the balance as a Server with LAN and DHCP set in the mode ‘Measurement transfer”. Setting Up in Client Communication Mode In this mode, the balance connects to a device, or often to a printer. To do this, the balance must know the IP address and the local port of the printer.

  • Page 42: Protocol, Glp Header, Glp Footer

    520 PT System Settings Connection status of the balance as a Server with LAN and DHCP set in the mode ‘Protocol”. NOTE Further information on settings can be found in the context help. 6.3 Protocol, GLP Header, GLP Footer An application protocoll consists of a header, the output of the measurement and the footer.

  • Page 43: Glp Header

    520 PT System Settings For example, a protocoll might look like this: Company Street 123 8953 Dietikon Abt: Development Date/Time 05.07.2018 09:24:58 ________________________________________ Device-ID Laboratory 1 User Administrator ID 1: Net value + 17.6017 g Gros value + 17.6017 g Tare value 0.0000 g...

  • Page 44: Define Text Paragraph Of Glp Header-And Glp-Footer

    520 PT System Settings To ensure easy orientation, the building blocks are divided into groups:  General contains blocks such as Date, time, user, the 3 text sections 1..3, line rewriting, etc.  Control contains blocks such as the status of the leveling, the status of the adjustment and the date of the last adjustment.
  • Page 45 520 PT System Settings NOTE If a channel is not physically available, the transfer may take a long time, because the scale only stops the transfer after a certain timeout. NOTE Further information on settings can be found in the context help.

  • Page 46: Device Settings

    520 PT System Settings 6.5 Device settings General settings can be changed in the Device Settings menu. 6.5.1 Device ID Allows to put in an alpha-numerical identification (max. 20 characters) which is also displayed during the start-up sequence, when the balance is switched on.
  • Page 47 520 PT System Settings - Classic form (dd.mm.yyyy): e.g. 12.01.2017 (12 January 2017) - USA Format (mm.dd.yyyyy ): e.g. 2017.02.08 (8 February 2017)  Time format: The time can be displayed in two formats: - 24 hours: Time representation based on the 24 hours model (ex.19:16, 04:10 etc) - 12 hrs: Time representation based on the 12 hrs model (e.g.

  • Page 48: Minimal Sample Weight And Quality Management, Msw

    520 PT System Settings Note: The internal clock is equipped with a backup battery, which guarantees perfect functioning for several years. If the time or dates are incorrect after a cold start, in most cases this indicates the end of the lifespan of the backup battery. This must be replaced by qualified personnel.

  • Page 49: Usp Chapter 41, Determinatin, Calculation

    520 PT System Settings The required minimum weights should be determined on the basis of the QM specifications by means of the statistical analysis of certain series of measurements.The balance's own ‘Statistics’ function could be used for this purpose, for example. It is used to perform and subsequently log the requisite series of measurements.

  • Page 50: Setting Foot Switch

    520 PT System Settings 6.8 Setting Foot switch Different type of foot switches can be attached to the balance over the USB type A connector on the back side of the balance to enable to trigger functions by a foot instead by hand.

  • Page 51: Device

    520 PT System Settings 6.9 Device Here you will find information about the device, which consists of a touch terminal and the weighing sensor. In the device information you find the overview with the product name, the serial number, the current software version, the installed accessories and the installed applications.

  • Page 52: Adjustment Mode Off

    520 PT System Settings Common settings:  Protocol: After the adjustment, a protocol is output via the corresponding interface. If the balance is integrated in an EDP system, this can lead to problems, which is why the output can be suppressed with the Protocol setting.

  • Page 53: Adjustment Mode Internal

    520 PT System Settings 6.10.4 Adjustment mode Internal The adjustment is triggered manualy and executed by the internal weight SCS. 6.10.5 Adjustment mode Automatic Thebalance can be set so that it automatically adjusts with the built-in weight or at least indicates that an adjustment is necessary.

  • Page 54: Setting Levelling

    520 PT System Settings NOTE Indipendend of these adjustment modes, the balance can always be adjusted explicitly in the Adjustment application, see 2.5 Adjusting the balance. 6.11 Setting Levelling The balance must be set up exactly horizontally in order to function properly. The balance is therefore equipped with an electronic level indicator for level control and two rotating feet, which can be used to compensate for small differences in height or unevenness in the balance area.
  • Page 55 520 PT System Settings NOTE Further information on settings can be found in the context help. NOTE Indipendend of this monitoring, the balance can always be adjusted explicitly in the LEvelling application. Precisa Gravimetrics AG...

  • Page 56: Add-On: Units / Free Conversion

    520 PT Add-On: Units / Free Conversion 7 Add-On: Units / Free Conversion 7.1 Unit With the aid of the Add-On function ‘Units’ you can display and print out the measuring result in different units. The activity of the Add-On function is indicated in current application screen by a small icon.
  • Page 57 520 PT Add-On: Units / Free Conversion By using one of the basically named as ‘Unit1’ until ‘Unit4’ a free unit with the following settings can be made.  Display unit name: Name of the units displayed in the units list ...

  • Page 58: Add-On: Statistics

    520 PT Add-On: Statistics 8 Add-On: Statistics The statistics function logs all measuring data in order to provide you any time with a wide range of statistical information for a series of measurements. All data can be displayed and printed out upon your requirements.

  • Page 59: Statistics Mode

    520 PT Add-On: Statistics Load-change-Mode absolute: In this mode the load change must exceed a certain limit to be recognized as such. Enter the minimum load change between measurements in g. This setting is not possible for automatic value acquisition with time interval.
  • Page 60 520 PT Add-On: Statistics  Add Up: Serves for different components which in total exceed the weighing capacity and are mixed or weighed in a separate container. - The automatic tare is switched off. - Only the total and the number of samples or components are displayed as the result.

  • Page 61: Add-On: Identification

    520 PT Add-On: Identification 9 Add-On: Identification With the Add-On function ‘Identification’ you can insert free identifications, labels, batch numbers or sample counters for measured values and much more into your protocol. The same information can also be shown on the display, see 5.3 Status symbol Symbols for the status of the balance are displayed here: ...

  • Page 62: Setting Up Identifications

    520 PT Add-On: Identification To change the content of an identifier you can place the soft button {Transfer} on the ‘Action bar’ or use ‘Auto entry’ what open a text field automatically for each printout. 9.4 Setting up identifications The behavior of the identifications can be defined in many different by selection of one of the available identifications.
  • Page 63 520 PT Add-On: Identification Once an identification has been selected the menu as below appears to set it according the requirement.  Name: Is the name of the identification which is shown on the display and the printout, e.g. Batch, sample, no.

  • Page 64: Identification, Mode

    520 PT Add-On: Identification  Mode: see 9.4.1 Identification, Mode Describes how the identification behaves, see below.  Text: Enter the default text  Auto entry (not available for mode fixed text): - On: Before printing, the text field is automatically opened for editing - Off: Identification to be processed must be opened using a soft button.
  • Page 65 520 PT Add-On: Identification The report for 4 subsequent weightings could look like this: Article: Screws Check: Ok Class: A No: 1 + 20.407 g Article: Screws Check: Ok Class: B No: 2 + 20.405 g Article: Screws Check: No...

  • Page 66: Add-On: Protocol

    520 PT Add-On: Protocol 10 Add-On: Protocol A protocol consists of the 3 blocks header, measurement with the corresponding outputs and the footer and must be defined separately for each application. The following description is for all blocks header, measurement and footer very much identical.

  • Page 67: Protocol Measurement

    520 PT Add-On: Protocol • Header button: The header is print out immediate after pressing the soft button for printing the header. Therefore you need to place this soft button onto the ‘Action bar’ what can be found in the group ‘Device’, see 5.11 Action bar and soft button customizing.
  • Page 68 520 PT Add-On: Protocol • Button Print each value: After pressing the [Print] key once, immediate printout, even if the scale has not yet released the weight value as stable and thus valid. • Button print stable value: After pressing the [Print] key, one-time printout as soon as the weight value has been approved by the scale as stable and valid.

  • Page 69: Protocol Footer

    520 PT Add-On: Protocol 10.3 Protocol Footer The footer is usually printed out at the end with information about the user, signature, information about the status of the device as e.g. Adjusted on ..., etc. The trigger for the printout must be defined.

  • Page 70: Protocol Items

    520 PT Add-On: Protocol 10.5 Protocol items Most protocol items are self-explanatory or have a description of where they are defined. To ensure easy orientation, the building blocks are divided into groups: • General contains date, time, user, GLP header resp. GLP footer, paragraphs, line breaks, etc.

  • Page 71: Move Items

    520 PT Add-On: Protocol 10.5.2 Move items The items can be moved by drag & drop functionality, but it has been hold for approx. 2S until it appears in green. 10.5.3 Deletes items By selecting an item this turns to red. Pressing the waste bin symbol deletes it.

  • Page 72: Workign With Users

    520 PT Workign with Users 11 Workign with Users The balance includes a user friendly user management. The user menu allows defining different password protected user profiles. New profiles can created based on existing user profiles or create a complete new individually profile. Exsiting user profiles can be deleted or changed.

  • Page 73: User Management

    520 PT Workign with Users 11.2 User management An administrator can create users, delete users, edit user profiles or edit user settings. New user profiles are created based on an existing profiles or predefined profile templates. A normal user can change only his profile name and password.
  • Page 74 520 PT Workign with Users  User: Click on create to create the user as it is currently defined and displayed here.  Based On: Defines from which user/administrator a copy is taken from. If you create a user the very first time, the copy template is the administrator profile ...

  • Page 75: Deleting A User (For Administrators Only)

    520 PT Workign with Users Trail, … Once a quality manager is created this option is no more available as only one quality manager is allowed.  Weighing, Counting, Percent, …, Leveling: Define what applications and functions are allowed for this user.

  • Page 76: Edit User Settings (For Administrators Only)

    520 PT Workign with Users 11.2.4 Edit user Settings (for administrators only) Depending on the access authorization, the user is not allowed to make the settings himself. Here, as an administrator, you can set the settings for each user as you would be the user himtself. For example, the administrator or QM manager can completely set the balance for a user.

  • Page 77: Customized User (For Administrators Only)

    520 PT Workign with Users To stop editing the user settings Logout on the Users Screen 11.2.5 Customized user (for administrators only) Customize user serves to predefine a user access levels template with special settings compared to the already available access levels templates Standard, Restricted and Quality Manager.
  • Page 78 520 PT Workign with Users Predefine the access rights what are in relation of quality management matters:  Quality Test: Access to applications and functions in relation to quality aspects like weighing performance as e.g. the application ART  Audt Trail View: Access to audit trail viewer to view and export the audit trail ...
  • Page 79 520 PT Workign with Users Application Predefine the access rights what are in relation to the applications:  Statistics settings: Access to change settings of the Add-On ‘Statistics’  Identification settings: Access to change settings of the Add-On ‘Identification’ ...
  • Page 80 520 PT Workign with Users Predefine the access rights what are in relation to the system:  General settings: Access to change general settings  Periphery settings: Access to change settings in relation to of for peripherial connections  Set date/time: Access to change date and time...

  • Page 81: Data Transfer

    520 PT Data transfer 12 Data transfer 12.1 Connection The data can be transfered through different connections from tha balance to a peripheral device. At the back of housing: Ethernet, wired USB HOST RS232, DB9f USB-B, DEVICE (optional) NOTE The most common and simplest is data transmission via RS232 and the USB DEVICE.
  • Page 82 520 PT Data transfer Print out date and time Start printing (corresponds press «PRINT» key) Individually print each value (unstable) Individually print each value (stable) P2 lll Print after change of load (llll = min. load change necessary in g or in percent) E.g.:...

  • Page 83: Audit Trail

    520 PT Audit Trail 13 Audit Trail The audit trail is a function embedded in the terminal software which automatically records and displays information about data generated, changed or deleted by the user or the system. The audit trail is stored on the SD card in the terminal. There is no write access to the LOG files on the terminal.
  • Page 84 520 PT Audit Trail  Calibration number update  Delete user  Create user  Change application  Change Action bar  Change Info section  Levelling  Adjust spirit level  Adjust   Linearization  Manuel entry, Administrator and Service user only...

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