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Raytech mini-ATOS Instruction Manual

Mini automatic transformer observation system
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INSTRUCTION MANUAL
ENGLISH
mini-ATOS
mini Automatic Transformer
Observation System
RAYTECH AG, OBEREBENESTRASSE 11, CH-5620 BREMGARTEN, SWITZERLAND

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  • Page 1 INSTRUCTION MANUAL ENGLISH mini-ATOS mini Automatic Transformer Observation System RAYTECH AG, OBEREBENESTRASSE 11, CH-5620 BREMGARTEN, SWITZERLAND...

  • Page 2: Table Of Contents

    Principle .......................13 4.2.2 Temperature Correction ..................14 4.2.3 Resistance Deviation ...................15 Demagnetization ......................16 4.3.1 Raytech SPP Demagnetization Method ...............17 4.3.2 Three-Phase Transformer Demagnetization ............18 Magnetic Balance .......................19 Measurement Setup ......................20 Connecting Test Cables to Transformer Terminals .............20 Operation Elements ......................22 Mains Input, Fuse and Mains Switch ................22 Ethernet Interface .......................22...
  • Page 3 10.1 Turns Ratio .........................49 10.1.1 Table view modes ....................50 10.1.2 Turns ratio settings ....................52 10.1.3 Turns Ratio Results View ..................53 10.2 Winding Resistance ....................54 10.2.1 Dual Supply Winding Resistance .................56 10.2.2 Winding Resistance Settings ................57 90297-0.22 Instruction Manual mini-ATOS Page 3 of 92...
  • Page 4 Warranty Conditions ......................86 Limitation of Warranty ....................86 Arbitration ........................87 Maintenance ........................88 Instrument Cleaning Instruction ..................88 How to Insert Paper into Thermal Printer ..............88 Thermal Printer Cleaning instruction ................89 Index ..........................90 Contacts ..........................92 90297-0.22 Instruction Manual mini-ATOS Page 4 of 92...

  • Page 5: Safety Precautions

    Failure to comply with these precautions and other specific warnings violates the safety standards of design, manufacture, and intended use. Raytech assumes no liability for the operation and use of this equipment.

  • Page 6: Before Applying Power

    Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized modification to the instrument. Return the instrument to a Raytech service department for service to ensure proper operation and that safety features are maintained.
  • Page 7 Figure 1: The unsafe area must be specified and restricted with barrier tapes or ropes WARNING! Always keep distance from the test object during the tests and the unsafe area must be specified and restricted with barrier tapes or ropes 90297-0.22 Instruction Manual mini-ATOS Page 7 of 92...

  • Page 8: Unpacking

    2 Unpacking The Instrument Cable Bags Measuring Cables H (H0-H3) Measuring Cables X (X0-X3) Safety Ground Cable Power Cord Spare Paper rolls & Fuses USB Memory Stick Instruction Manual (Pre.) 90297-0.22 Instruction Manual mini-ATOS Page 8 of 92...

  • Page 9: Introduction

    Raytech engineers. It is designed for a high degree of accuracy and ease of use. This compact and intelligent instrument can perform many routines and advanced tests such as...

  • Page 10: Calculation And Measurement Methods

    This is a useful test to check for shorted turns and also to find probable incorrect settings of tap changers during manufacturing or repairing. The mini-ATOS performs the turns ratio by applying voltage on the high voltage side of each phase and measuring the applied voltage and transformed voltage. Figure 2 represents the very simple schematic of the measuring circuit.
  • Page 11 Consider that for the current example the number of turns is 93531and 9000 for each primary and secondary winding respectively. The following equations are valid: �������������� ������������ ���� ���������� 93531 ���������� ���������� = = 10.3923 ������������������ ������������ ���� ���������� 9000 90297-0.22 Instruction Manual mini-ATOS Page 11 of 92...

  • Page 12: Relative Error

    The calculated error can be compared with a limit value. Generally, there are limit values for the turns ratio relative error. A typical limit value according to IEEE C57.12.00-2010 is 0.5%. This limit value can be used to judge if the test is passed or failed. 90297-0.22 Instruction Manual mini-ATOS Page 12 of 92...

  • Page 13: Dc Resistance Test

    Figure 4: Summarized schematic of mini-ATOS winding resistance measuring circuit The mini-ATOS has two power supplies with the same output power which can be used to measure both high voltage side and low voltage side winding simultaneously.

  • Page 14: Temperature Correction

    The mini-ATOS winding resistance circuit is also equipped with heavy-duty discharge circuits that are very unique in design to dissipate the stored energy in the transformer windings. 4.2.2 Temperature Correction The DC resistance measured values can be corrected to the desired reference values by employing the following equation based on IEEE C57.12.90:...

  • Page 15: Resistance Deviation

    Please note that if the temperature of phases is not the same during the resistance measurements, the deviation values may be higher. In this case, it is better to calculate the deviation values of the temperature-corrected resistances. 90297-0.22 Instruction Manual mini-ATOS Page 15 of 92...

  • Page 16: Demagnetization

    Figure 5-A shows an actual example of a hysteresis curve during demagnetization which is performed using the mini-ATOS. Figure 5-B is a closer look at the same curve. The depicted parameters are described below: Ф...

  • Page 17: Raytech Spp Demagnetization Method

    Figure 5: A) A real example of a hysteresis curve during demagnetization with the mini-ATOS. B) Closer look at the same curve in A. 4.3.1 Raytech SPP Demagnetization Method To achieve a very small residual magnetism, the mini-ATOS use a special method to perform the final cycles of the demagnetization, called SPP, Smart Pattern Predictor, which is based on pattern recognition.

  • Page 18: Three-Phase Transformer Demagnetization

    When the aim is to achieve a very small residual magnetism to perform special tests like SFRA The mini-ATOS can use the advantage of the automatic multiplexer to perform demagnetization from each phase automatically and without changing the connection setup.

  • Page 19: Magnetic Balance

    4.4 Magnetic Balance Raytech mini-ATOS performs the magnetic balance test by applying AC voltage on each winding of the three-phase transformer from the high voltage side and measuring induced voltage into other windings on the same side. The applied voltage produces magnetic flux in the core which is distributed to other parts of the core and induces a voltage into other windings.

  • Page 20: Measurement Setup

    When you want to perform a measurement in which tertiary winding is involved (e.g., Turns ratio between primary and tertiary), you have to connect the mini-ATOS X Cables to the tertiary side. Because of safety, take care when you perform tests between secondary and tertiary. The voltage may transform to a very dangerous level at the primary side during the measurements.
  • Page 21 Table 4: Test cables connection guide for a three (3) phase transformer mini-ATOS Transformer Marking Standard Voltage Level Test Cable IEEE Label Primary Secondary Tertiary 90297-0.22 Instruction Manual mini-ATOS Page 21 of 92...

  • Page 22: Operation Elements

    Two 5mm x 20mm T10A slow blow fuses protects the device. Use only the same type for replacement. c- Press the Mains Switch to turn the mini-ATOS ON/OFF. 6.2 Ethernet Interface This port can be used for remote access. Please see chapter 11 for more information about the remote connection.

  • Page 23: Protective Earth Terminal

    Turn clockwise to release. The device will remain in a safe state. 6.7 Display and Touch Panel The mini-ATOS can be easily controlled by this touch screen panel. Since it is a capacitive touch screen, use your finger to control it as you work with a smartphone.

  • Page 24: User Interface

    On the home screen, easy access to the main parts of the operation menu is provided. Figure 6 represents the mini-ATOS home screen. Figure 6: The mini-ATOS home screen By tapping the Home icon from any List of test object types to define a new...

  • Page 25: Archive

    7.2 Archive In Archive, a list of already defined test objects is shown (Figure 7). Figure 7: The mini-ATOS test objects Archive To activate the multi-select to export or Last activity date delete test objects Sort the test object records based on...
  • Page 26 The list of inspections sorted by date To open the option menu The selected inspection title To open the measurement view The selected test plan measurement To open the result view in graph and table sides 90297-0.22 Instruction Manual mini-ATOS Page 26 of 92...

  • Page 27: Templates

    To create a new template To edit the template Template item To clone or make a copy from the The template winding configuration template To create a test object from the template Template name Date created 90297-0.22 Instruction Manual mini-ATOS Page 27 of 92...

  • Page 28: Settings

    CSV separator is helpful for software like excel to correctly show results as data columns from the exported results in CSV format. Depending on the PC language, sometimes comma [,] is the separator and sometimes semicolon [;] is the separator. Figure 11: Regional adjustments in Setting 90297-0.22 Instruction Manual mini-ATOS Page 28 of 92...

  • Page 29: Naming Scheme

    7.4.4 Networking In this tab (Figure 13), you can adjust the networking settings which are required for remote access. For more information about remote access please see chapter 11. Figure 13: Network configuration 90297-0.22 Instruction Manual mini-ATOS Page 29 of 92...

  • Page 30: Remote Access

    (4 digits) if the field is left empty. The generated code will be shown on the login page on the device screen. To find out how to control the device with remote access, please see chapter 90297-0.22 Instruction Manual mini-ATOS Page 30 of 92...

  • Page 31: Maintenance

    10min. Service Codes When there is a problem or error in the device, the Raytech service team may ask you to use the service codes. With service codes, it is possible to do some additional actions which are not possible to do by using the default software.

  • Page 32: License

    Each license may be valid for a limited time like 10 days or can be unlimited. To test a feature, you can ask Raytech for a trial license to activate the feature temporarily. Figure 16: License manager 90297-0.22 Instruction Manual mini-ATOS...

  • Page 33: Test Objects

    Tap the Save icon to store all the entered test object data and go to the test plan. Cancel By tapping this icon, you can cancel the test object defining and go back to the Home Screen. Please take care because all the entered data will not save. 90297-0.22 Instruction Manual mini-ATOS Page 33 of 92...

  • Page 34: Windings

    The winding type can be from any winding type of Table 5: Table 5: Winding types and symbols Letter Letter Phases Type Symbol (Primary) (non-Primary) Delta Star with accessible neutral 3-Phases Star Zigzag with accessible neutral Zigzag 1-Phase Single-phase 90297-0.22 Instruction Manual mini-ATOS Page 34 of 92...
  • Page 35 Detect Vector Group It is also possible to detect just the vector group quickly by using this button. It detects only the vector group and not the winding configuration. Figure 19: Detect vector group 90297-0.22 Instruction Manual mini-ATOS Page 35 of 92...
  • Page 36 When there is a tertiary winding, the check box can be selected and like the secondary winding, the required information can be entered (Figure 21). Figure 21: Defining a transformer with a Tertiary winding 90297-0.22 Instruction Manual mini-ATOS Page 36 of 92...

  • Page 37: Winding Configuration Autodetect

    The actual configuration is written on the left side, and the detected configuration will be written on the right side (See Figure 23). When mini-ATOS find more winding configurations, a list of them will be provided and you can choose each of them. After detection, you can accept the detected configuration or you can cancel.

  • Page 38: Nameplate

    By tapping each text field, the keyboard will be opened and the data can be easily entered. The nameplate data is optional to enter. It is also possible to add this information later by editing the test object. Figure 24: Test object Nameplate tab 90297-0.22 Instruction Manual mini-ATOS Page 38 of 92...

  • Page 39: General

    When a custom naming scheme is required, it can be easily defined in the Naming Scheme window (Figure 26) which can be opened using the pencil icon. Figure 26: Custom Naming Scheme window 90297-0.22 Instruction Manual mini-ATOS Page 39 of 92...
  • Page 40 The temperature coefficient which is required for the temperature correction can be set here for each winding. If a custom coefficient is required, the value can be added using the plus icon. For more details about the temperature coefficient, please see chapter 4.2.2. 90297-0.22 Instruction Manual mini-ATOS Page 40 of 92...

  • Page 41: Tap Changer

    Tap Control If you connect the mini-ATOS tap control output to the tap changer control unit, choose Yes. The tap changer position then can be changed manually or automatically from the mini-ATOS. To find out how to connect the tap control cable, please refer to chapter 13.5.

  • Page 42: Electrical Values

    13417 12517 67000 14235 13335 12436 65325 14154 13254 12354 63650 14072 13172 12272 13990 13090 12190 13908 13008 12108 13826 12926 12026 13745 12845 11945 13663 12763 11863 13581 12681 11781 90297-0.22 Instruction Manual mini-ATOS Page 42 of 92...
  • Page 43 To match the calculated values to nameplate values, it is also possible to say the wizard how to round the calculated values. The default value is 1, which means that all calculated values round to the nearest natural number. 90297-0.22 Instruction Manual mini-ATOS Page 43 of 92...
  • Page 44 To match the calculated values to nameplate values, it is also possible to say the wizard how to round the calculated values. The default value is 1, which means that all calculated values round to the nearest natural number. 90297-0.22 Instruction Manual mini-ATOS Page 44 of 92...
  • Page 45 Finally, there is a Preview, which shows how will be the labels by using the wizard. Figure 31: Labels wizard window Figure 32 shows also how to fill the wizard for the secondary side of the example. Figure 32: filling the labels wizard for the example 90297-0.22 Instruction Manual mini-ATOS Page 45 of 92...

  • Page 46: Inspection And Test Plan

    In the lifetime of a high voltage asset, usually a measurement or group of measurements have to be performed periodically and also sometimes occasionally. The aim is to inspect the health condition or to detect the suspected failures. In mini-ATOS, each group of measurements is called a Test Plan which forms an Inspection.
  • Page 47 Note that when you select another pair of winding, the measurement setup must be changed according to chapter 5.1. Figure 35: Test plan for Pri: Ter pair, which is selected from the drop-down list located above. 90297-0.22 Instruction Manual mini-ATOS Page 47 of 92...
  • Page 48 Here it is possible to edit the inspection name, enter the weather condition and write additional notes like the reason for the inspection as remarks for later references. Figure 36: Inspection information 90297-0.22 Instruction Manual mini-ATOS Page 48 of 92...

  • Page 49: Measurements

    Test mode to select which phase to test by the instrument to test each phase (A, B, C, ABC, Run Test Taps) Expected turns or voltage ratio 90297-0.22 Instruction Manual mini-ATOS Page 49 of 92...
  • Page 50 The other view mode is the non-primary table view mode. In this mode, for each tap position on the primary side, there is a measurement table which includes all non-primary tap positions. 90297-0.22 Instruction Manual mini-ATOS Page 50 of 92...
  • Page 51 33 secondary taps (5 tables, each 33 taps). The primary selected tap is also shown on the top and it is possible to change it. Figure 40: Turns ratio secondary view mode 90297-0.22 Instruction Manual mini-ATOS Page 51 of 92...

  • Page 52: Turns Ratio Settings

    It is also possible to find out what is the suitable test voltage for a specific test object. Just tap the search icon, and run detection in the Auto detect voltage window (Figure 42). Figure 42: Turns ratio suitable test voltage auto detection 90297-0.22 Instruction Manual mini-ATOS Page 52 of 92...

  • Page 53: Turns Ratio Results View

    Figure 44 shows also the turns ratio table results. By tapping the TR or the Rated TR column header, it is possible to switch between turns ratio and voltage ratio values. Figure 44: Turns ratio table results view 90297-0.22 Instruction Manual mini-ATOS Page 53 of 92...

  • Page 54: Winding Resistance

    The phase and the corresponding Start test button connections which be used automatically Test mode to select which phase to test by the instrument to test each phase (A, B, C, ABC, Run Test Taps) 90297-0.22 Instruction Manual mini-ATOS Page 54 of 92...
  • Page 55 When the ambient temperature is above 40°C, Continuous mode winding resistance measurement, specially with maximum output power, must be limited to 30 minutes and before the next measurement a cooldown time of 30 minutes is required. 90297-0.22 Instruction Manual mini-ATOS Page 55 of 92...

  • Page 56: Dual Supply Winding Resistance

    To turn On or turn Off the power supply the power supply injects current to the for the non-primary side primary side to increase the transformer charging speed. But no resistance will be measured 90297-0.22 Instruction Manual mini-ATOS Page 56 of 92...

  • Page 57: Winding Resistance Settings

    The maximum acceptable deviation value. Please see chapter 4.2.3 for more information INFO: Do not select currents more than 10% of the test object nominal current for each side. Otherwise, current will increase the temperature and hence resistance of the winding. 90297-0.22 Instruction Manual mini-ATOS Page 57 of 92...
  • Page 58 Here T1 is plugged-in and also activated in the setting. T2 is activated but not plugged-in. In this case, the mini-ATOS shows an error message after starting the measurement. And T3 is not activated but plugged in. Please note that the average value is missing because of T2.

  • Page 59: Winding Resistance Result View

    Figure 52 shows also the Primary (Ph-Ph) table results. By tapping the DevCorr column header, it is possible to switch between deviation for measured values or temperature corrected values. Figure 52: Winding resistance table results view 90297-0.22 Instruction Manual mini-ATOS Page 59 of 92...

  • Page 60: Winding Resistance Interval

    The actual tap position of secondary side start. To turn On or turn Off the power supply Start test button for the secondary side 90297-0.22 Instruction Manual mini-ATOS Page 60 of 92...
  • Page 61 The stop button can be used to stop the test. Please note that it takes time to discharge and stop the test WARNING! After measurement stop, it takes time to discharge the test object! Wait until the device mode changes to safe mode before any other action! 90297-0.22 Instruction Manual mini-ATOS Page 61 of 92...

  • Page 62: Winding Resistance Interval Settings

    But no resistance will be measured To select the current that injects into the secondary winding side and also to turn On or turn Off the power supply for the secondary side 90297-0.22 Instruction Manual mini-ATOS Page 62 of 92...
  • Page 63 Total measurement duration which is calculated by timing measuring interval and measuring points The temperature settings of the winding resistance interval are the same as winding resistance settings. Please see chapter 10.2.2, Temperature settings part, to see the explanation. 90297-0.22 Instruction Manual mini-ATOS Page 63 of 92...

  • Page 64: Winding Resistance Interval Result View

    Figure 57: Winding resistance interval graph results view Figure 58 shows also the Primary table results. Figure 58: Winding resistance interval table results view 90297-0.22 Instruction Manual mini-ATOS Page 64 of 92...

  • Page 65: Demagnetization

    The button to run the test Test mode to select which phase to The measured maximum remanence flux perform the demagnetization The measured initial remanence flux in % (as the percentage of the measured maximum remanence flux) 90297-0.22 Instruction Manual mini-ATOS Page 65 of 92...
  • Page 66 The stop button can be used to stop the test. Please note that it takes time to discharge and stop the test WARNING! After measurement stop, it takes time to discharge the test object! Wait until the device mode changes to safe mode before any other action! 90297-0.22 Instruction Manual mini-ATOS Page 66 of 92...

  • Page 67: Demagnetization Settings

    Normally, to reach a smaller final remanence flux and hence better demagnetization quality, you can select more steps. However, since the mini-ATOS use the Raytech SPP method (See chapter 4.3.1 for more information), the quality of the demagnetization is quite good even when the number of Steps is set to Very Fast (8 Steps).

  • Page 68: Magnetic Balance

    The output current during the test Start test button The phase which the voltage measured Test mode to select which phase to test and the values as a percentage of the (A, B, C, ABC) applied voltage 90297-0.22 Instruction Manual mini-ATOS Page 68 of 92...
  • Page 69 The warning symbol shows that it is not safe to touch the cables and test clamps The highlighted cell shows the actual measurement The stop button can be used to stop the test. Please note that it takes time to stop the test 90297-0.22 Instruction Manual mini-ATOS Page 69 of 92...

  • Page 70: Magnetic Balance Settings

    Figure 64 represents the magnetic balance measurement settings. Figure 64: Magnetic balance measurement settings For magnetic balance, the applying voltage can be selected up to 50VAC. Please note that the test voltage is at 10Hz. 90297-0.22 Instruction Manual mini-ATOS Page 70 of 92...

  • Page 71: Magnetic Balance Result View

    Figure 65 shows the graph view. Figure 65: Magnetic balance graph results view Figure 66 shows also the table results including the colored bar. Figure 66: Magnetic balance table results view 90297-0.22 Instruction Manual mini-ATOS Page 71 of 92...

  • Page 72: Go Taps

    Tap Changing: Automatic For automatic tap changing, the mini-ATOS tap control output must be connected to the tap changer control unit for both directions. In the transformer profile, Tap Changer tab also, the tap control must be activated.
  • Page 73 To confirm, it is possible to tap the confirm button on the screen, and it is also possible to use a hand switch which must be connected to the mini-ATOS External terminal. Figure 69: Tap Switch window during manual tap changing 90297-0.22 Instruction Manual mini-ATOS...

  • Page 74: Remote Access Instruction

    PC and tablets. The remote connection is possible with the USB or the network connection. When the device is connected, the mini-ATOS can be accessed by using any web browser. For optimal operation, we recommend using Google Chrome or Microsoft Edge browser.
  • Page 75 Figure 71: Remote access activated with an auto-generated key on the mini-ATOS display Figure 72: Remote access login page Notes You can always cancel the remote connection from the device Only one active session is possible at once If the access code is auto-generated, by entering a wrong access code each time, a new code will be generated.

  • Page 76: Interfaces

    USB memory sticks. It is also possible to connect a USB mouse and a USB keyboard for easier input. The Slave connector can be used to connect the mini-ATOS to a PC or to connect a USB printer. USB-Master (Type A) x2 USB-Slave (Type B) 13.2 Ethernet...

  • Page 77: External (4Pins Version)

    When both hand switch and warning lamp is required then a splitter cable is necessary as follows which can be ordered as an optional item: Cable adapter hand switch & warning lamp (4pin to 2x 4pin) 90297-0.22 Instruction Manual mini-ATOS Page 77 of 92...

  • Page 78: External (6Pins Version)

    When external safety interlock and both hand switch and warning lamp is required then two splitter cables are necessary as follows which can be ordered as an optional item: Cable adapter external Cable adapter hand switch/ warning lamp (6pin to 6pin & 4pin) (4pin to 2x 4pin) 90297-0.22 Instruction Manual mini-ATOS Page 78 of 92...

  • Page 79: Tap Control

    This port is used for an external connection to a tap changer dry contact. With this connection, changing the tap position can be done from the mini-ATOS. Two connectors are for changing the tap position in up direction and the other two are for changing the tap position in down direction.

  • Page 80: Technical Specifications

    Degree of protection (open door) IP20 L: 525 mm (20.7”) W: 437 mm (17.2”) H: 213 mm (8.4”) Size Weight (instrument) 16.5 kg (36.4 lbs.) Weight (accessories) Please contact Shipping weight and package size Please contact 90297-0.22 Instruction Manual mini-ATOS Page 80 of 92...

  • Page 81: Accuracies

    ±1.00% Rdg ± 0.01 A 4 Digits @ 55Hz Phase Angle ±90° ±0.05° Rdg ± 1 LSD 4 Digits or 0.01° @ 55Hz 0 – 250VAC Output Voltage ±1% ± 1 LSD 4 Digits or 0.1VAC 90297-0.22 Instruction Manual mini-ATOS Page 81 of 92...

  • Page 82: Resistance Measurements

    5 Digits 1kΩ … 10kΩ < 50mA ±1% Rdg ± 50Ω 5 Digits 14.2.3 Temperature Measurement Table 11: Output voltage accuracy Range Accuracy Resolution 0 – 70°C ±0.2°C ± 1 LSD 0.1°C 90297-0.22 Instruction Manual mini-ATOS Page 82 of 92...

  • Page 83: Standards And Approvals

    IEC 61000-4-2 discharge (ESD) Electromagnetic field IEC 61000-4-3 Burst IEC 61000-4-4 Immunity industrial Surge IEC 61000-4-5 electromagnetic environment Conducted RF IEC 61000-4-6 Power frequency IEC 61000-4-8 magnetic field Voltage dip IEC 61000-4-11 90297-0.22 Instruction Manual mini-ATOS Page 83 of 92...

  • Page 84: Appendix

    Appendix mini-ATOS mini Automatic Transformer Observation System 90297-0.22 Instruction Manual mini-ATOS Page 84 of 92...
  • Page 85 Warranty Conditions ......................86 Limitation of Warranty ....................86 Arbitration .......................87 Maintenance ........................88 Instrument Cleaning Instruction ................88 How to Insert Paper into Thermal Printer ..............88 Thermal Printer Cleaning Instruction ..............89 Index ..........................90 Contacts ........................92 90297-0.22 Instruction Manual mini-ATOS Page 85 of 92...

  • Page 86: A Warranty Conditions

    A Warranty Conditions Raytech AG Switzerland shall at their option and expense, repair or replace any part or parts that prove to be defective within the warranty limitation period- irrespective of the operating time of the test equipment provided that the cause of the defect occurred before the time at which the risk was passed.

  • Page 87: Arbitration

    All disputes arising out of or in connection with the contract between the purchaser and Raytech AG Switzerland and including those regarding the legal validity of this contract and this arbitration clause shall be settled out of court and shall be referred to arbitration for final decision.

  • Page 88: B Maintenance

    Unwind a few cm (inch) of paper from the roll. • Keep the layers wound tightly when inserting the paper roll into the paper tray. The paper outside shows towards the printer mechanism. 90297-0.22 Instruction Manual mini-ATOS Page 88 of 92...

  • Page 89: Thermal Printer Cleaning Instruction

    Soak Q-tip with isopropanol (IPA) and clean the sensor, platen roll and print head rail, as well as further dirt. • Other strong contaminations may also be removed with a Q-tip soaked with isopropanol (IPA). 90297-0.22 Instruction Manual mini-ATOS Page 89 of 92...

  • Page 90: C Index

    Safety precautions ..............................5 Service codes ................................. 31 Smart pattern predictor ............................17 Software update..............................31 SPP method ................................17 Stability condition ..............................57 Standards and approvals ............................81 Start current ................................67 90297-0.22 Instruction Manual mini-ATOS Page 90 of 92...
  • Page 91 Turns ratio measurement ............................. 10 Turns ratio measurement view ..........................49 Unsafe area ................................7 Voltage ratio ................................10 Winding configuration autodetect ........................37 Winding resistance measurement view ........................ 54 X-Side current................................ 57 90297-0.22 Instruction Manual mini-ATOS Page 91 of 92...

  • Page 92: D Contacts

    D Contacts Raytech Switzerland Your local representative Raytech AG Oberenbenestrasse 11 5620 Bremgarten Phone:+41 56 648 6010 Fax: +41 56 648 6011 Mail: welcome@raytech.ch Web: www.raytech.ch 90297-0.22 Instruction Manual mini-ATOS Page 92 of 92...

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