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SCANER MD-500 Operation Manual

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MICROSCOPE MD-500
Operation Manual

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Summary of Contents for SCANER MD-500

  • Page 1 MICROSCOPE MD-500 Operation Manual...
  • Page 2 MICROSCOPE MD-500 Operation Manual...

  • Page 3: Table Of Contents

    5.8. Microscope Head Installation ................51 5.9. Cable Connection ....................52 5.9.1. For floor stand and wall mount ..............54 5.9.2. For ceiling mount ..................55 5.9.3. For wall mounting ..................57 Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 4 8. Microscope Maintenance ................... 88 8.1. Cleaning and Disinfection of Outer Surfaces ............ 88 8. 3. Sterilizing/cleaning silicone caps ................ 88 9. Troubleshooting ......................89 Replacement of the fuse element ..............90 Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 5: Safe Use Instructions

    The operation manual contains important recommendations for safety use and maintenance of the microscope MD-500 (hereinafter referred to as microscope). To ensure operational safety, follow all the instructions and warnings given in this manual. ATTENTION. If the microscope is used for any purposes other than those specified in the manual, there is a risk of injury and material damage.
  • Page 6 Microscope MD-500 corresponds to the provisions of the European Medical Devices Directive 93/42/EEC and meets the requirements of the Technical Regulations for Medical Devices of Ukraine.

  • Page 7: Conventional Signs Used In The Manual

    Directive 93/42/EEC). ATTENTION. Avoid letting any fluid inside the microscope. PROHIBITED. To keep and use the microscope in any places exposed to long-lasting influence of direct sunrays, X-rays or strong electromagnetic emission. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 8: Labeling And Symbols

    ATTENTION. Before using make sure that the microscope is in operational condition. ATTENTION. The duration of continuous operation of the microscope illuminator must not exceed 4 hours followed by 30 minutes of pause. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 9 The locking of stand rollers is carried out by pressing the pedal lock. Before moving, remove the lock from the rollers. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 10: The Field Of Use, Design And External View

    The microscope is delivered in its standard configuration. At the request of the customer the components of the microscope can be replaced by other, similar in functionality, or be removed from the delivery package or delivered additionally. 2.1. Microscope Mount Options Wall Mount Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 11: Power Supply Unit

    The power supply unit of the microscope provides the LED illuminator with stabilized constant current. The power supply unit is mounted on a floor or other mounting version – ceiling or wall. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 12: Balancing Lever

    The balancing spring lever is intended to hold and balance the microscope head. The balancing lever has a system of automatic disconnection of illuminator supply (a limit switch), when the microscope head reaches the uppermost position. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 13: Microscope Head

     orange – used to prevent premature photopolymerization of a composite material (dentistry);  green – used to increase the contrast of blood vessels (surgery).  “Smart light”- a system of automatic light regulation during zooms in. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 14  “Fluorescent light” – an additional florescent source of light (395 nm) and a system of special filter implementation to increase contract of florescent image. Mechanism of light filter implementation has three work positions: orange; empty channel; green. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 15 Binocular assistant channel (option) allows the assistant to observe the doctor's actions by visualization through the binocular piece installed on the channel ± 90 ° with an axial rotation mechanism. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 16: Scope Of Delivery

    ATTENTION. Make sure the components of the microscope are not damaged during transportation, including the following types of damage: unnatural deformations, cracks and shears, damage of paint coat. If any damages are detected, contact your supplier. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 17: Additional Components

    Binocular assistant channel Silicone caps: - silicone cap for shifting magnification knob - silicone cap for handle to adjust illuminator brightness - silicone cap for V-shaped handle - silicone ring for variable lens Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 18: Technical Specifications

    General magnification, ratio 3.7 – 24.2 59.4 – 9.1 3.2 – 20.7 68.8 – 10.6 2.8 – 18.3 78.6 – 12 2.6 – 16.4 84.6 – 13.4 2.3 – 14.8 95.6 – 14.8 Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 19: Technical Parameters

    Power supply voltage from the single phase AC current with from 90 to 250 frequency of 50/60 Hz, V Power consumption of the microscope, VA, no more than Microscope weight (basic scope of delivery), kg, no more than Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 20: Floor Stand Parameters

    Technical Specifications 4.3. Floor Stand Parameters 3 0° 3 0° 340° 918 mm 216 mm 465 mm 150° 55° 45° 360°х 4 540 х 605 mm Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 21: Wall Mount Parameters

    Technical Specifications 4.4. Wall Mount Parameters 3 0° 3 0° 340° 918 mm 216 mm 465 mm 150° 55° 45° Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 22: Ceiling Mount Parameters

    Technical Specifications 4.5. Ceiling Mount Parameters 3 0° 3 0° 340° 918 mm 216 mm 465 mm 216 mm 150° 55° 45° Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 23: Options Of Microscope Component Installation

    Technical Specifications Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 24 2) Lens f=200 mm (with fine focus) 3) Lens f=2 0 mm with fine focus 1) Lens protective glass 4) Lens f=300 mm (with fine focus) 2) Ring flash adapter 5) Lens f=350 mm 6) Lens f=400 mm Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 25: Mounting And Installation

    Installation/Replacement of Additional Components 5. Mounting and Installation Microscope MD-500 in its standard configuration is delivered in a packing that consists of 5 pieces. The places numbers in the package may differ, depending on the configuration. Before installation take all the microscope components from the transportation boxes and remove their packages.

  • Page 26: The Floor Stand Assembly

    Screw the nuts with washers onto the pins, all the way. ATTENTION. The mobile base plate is very heavy! The floor stand installation must be carried out with help of a several people. Mobile base Nuts Washers Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 27 Pass the HDMІ and power cables through the hole in the rack and secure them from the back. Place the assembled tripod on the floor. Pass the casing through the stand and lower onto the mobile base. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 28: Wall Mount Assembly

    ATTENTION. The wall mount assembly is carried out by the customer, because the customer alone is responsible for its own premises, resistibility and safety of floors, availability of hollow spaces, internal communication, etc. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 29 Installation/Replacement of Additional Components Parameters of the microscope mounting on the wall in a dentist’s office as an example. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 30 Make holes in the wall. Fix the wall mount by the anchor bolts from the delivery package. Screw the anchor bolts tight. Insert the casing to close the place of installation. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 31: Ceiling Mount Assembly

    ATTENTION. The ceiling mount assembly is carried out by the customer, because the customer alone is responsible for its own premises, resistibility and safety of floors, availability of hollow spaces, internal communication, etc. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 32 Installation/Replacement of Additional Components Parameters of the microscope ceiling mount in a dentist’s office as an example. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 33: For Concrete Ceilings

    Mark places for 4 holes using the ceiling mount as a template. Make holes in the ceiling. Mount the mounting plate with the help of the anchor bolts from the delivery package. Screw the anchor bolts tight. Fixing plate Anchor bolts Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 34 Insert the rod straight, without slanting, into the mounting plate from below so that the rod holes match the threaded holes in the plate. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 35 Installation/Replacement of Additional Components Mains cable HDMI cable Clamps to fix the cables Screw the mounting screws tight in the treaded holes of the mounting plate. Mounting screws Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 36 Install the cover, then the locking ring on the bottom of the rod. With the help of the stop ring move the casing up to the ceiling and screw the stop screw in the ring tight to fix the casing position. Stop screw Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 37: For Suspended Ceilings

    Mark the locations of the 4 holes using the mounting plate as a stencil, placing it on the concrete ceiling. Make holes in the concrete ceiling. Install the mounting plate using the anchor bolts supplied. Securely tighten the anchor bolts. Mounting plate Anchor bolts Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 38 Install the adjustment plate from the bottom of the mounting plate, aligning the holes in the adjustment plate with the threaded pins protruding from the mounting plate. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 39 Lock the adjustment plate by screwing the locking nuts on the threaded pins on the bottom of the plate, all the way in. Nuts Remove the mounting screws from the frame of the adjustment plate. Mounting screws Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 40 Evenly, without skewing, install the rod on the bottom of the adjustment plate, aligning the holes in the rod with the threaded holes in the plate. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 41 Tighten the mounting screws into the threaded holes in the plate, all the way. Mounting screws Install the cover, then the locking ring on the bottom of the rod. ø 323 mm Casing Stop ring Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 42 Installation/Replacement of Additional Components Press the cover with the locking ring against the ceiling and tighten the locking screw all the way into the ring body. Stop screw Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 43: Power Supply Unit Installation On Stand

    The power supply unit installation must be carried out with the help of several people. Plug Power supply unit Axel retainer Retaining screw Decorative plate Restrictive screw Rack Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 44 Screw the rear axle lock into the threaded hole on the power supply. Cover the decorative plate and plug before connecting the power and HDMI cables (section 5.9.1). Restrictive screw Axle retainer Retaining screw Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 45: Power Supply Unit Installation On Wall Mount

    Screw the retaining screw and the restriction screw into the threaded holes of the power supply. Screw the rear axle lock into the threaded hole on the power supply. Cover the decorative plate and plug after connecting the power and HDMI cables (section 5.9.3). Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 46: Power Supply Unit Installation On Ceiling Mount

    Unscrew the plug from the power supply. Insert the mains cable and HDMI cable (when the microscope is supplied with installed photo and video system) through the hole into the power supply unit axis. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 47 Insert the power supply unit axis into the rod, without slanting, passing the power supply unit axis on the bottom of the rod, so that the rod holes match the threaded holes on the power supply unit axis. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 48 Installation/Replacement of Additional Components Screw the mounting screws into the threaded holes on the axle, all the way to the stop. Cover the plug before connecting the power and HDMI cables (section 5.9.3). Mounting screws Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 49: The Monitor Stand Installation

    Align the mounting holes in the VESA 75/100 mount with the corresponding mounting holes in the monitor. Screw the mounting screws from the delivery package in the treaded holes of the monitor, all the way. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 50 Installation/Replacement of Additional Components Secure the bushing to the upright with two screws. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 51 Installation/Replacement of Additional Components Place the monitor with the arm onto the hub and install the screw. Install the washer and nut and tighten the screw. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 52: Microscope Head Installation

    Installation/Replacement of Additional Components 5.8. Microscope Head Installation Unscrew the detent from the optical head. Place the optical head on the 60 ° adapter. Fix the optical head with the detent. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 53: Cable Connection

    Route the cable through the hole in the brackets and push it until you get it out of the box (release the fixing of the cables in the rosettes and push the cables to them in an offensive order: Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 54 ATTENTION. If the microscope is supplied with an integrated photo and/or video system, the HDMI cable with the connector designed to connect to the photo and video devices is put in the support of the optical head. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 55: For Floor Stand And Wall Mount

    Connect the plug of the HDMI cable to the socket located inside the power supply. Connect the power cable to the terminal block located at the bottom of the power supply. Install the decorative plate and the plug (section 5.4). Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 56: For Ceiling Mount

    (loop not less than 3 cm). Connect the mains plug with cable, running from the power supply unit into the socket on the bottom of the power supply unit pushing the clip. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 57 Connect the microscope to the mains. Check the operation of the microscope illuminator by switching it on and off. PROHIBITED. To use the microscope if the power connector is not fixed with the clip. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 58: For Wall Mounting

    5.10. Activation of Balancing Lever Firmly holding the balancing lever, unscrew the transport screw, which blocks the vertical movement of the lever, from its body. Install the cover in place of the transport screw. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 59 ATTENTION. Tilt force of the balancing lever is balanced during microscope manufacture specifically for each version at the manufacturing plant. If the inspection shows that the tilt force is balanced incorrectly, refer 7.10 Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 60: Installation/Replacement Of Additional Components

    ATTENTION. This section describes only the components that can be installed/replaced or dismantled by the customer individually. ATTENTION. Possible combinations of microscope components are described in 4.6. ATTENTION. Additional components must be installed/replaced with extreme care, observing all the instructions below. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 61: Lens Replacement

    6.1. Lens Replacement Carefully unscrew and remove the lens from the optical head body. Insert a lens with another focus distance and place the fine focus control in a position convenient for use. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 62: Installation Of Lens Protective Glass

    Installation/Replacement of Additional Components 6.2. Installation of Lens Protective Glass Unscrew and remove the decorative ring from the lens. Insert the lens protective glass instead of the decorative ring until tight. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 63 By rotation of the ring around its axis position the protective glass so that the label was directed towards the user. ATTENTION. In using the microscope without the lens protective glass may damage the lens. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 64: Installing The V-Handle Plug

    Unscrew the handle. Install the plug, in place of the handle, all the way to the stop. Tighten the locking ring all the way to the stop. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 65 Installation/Replacement of Additional Components Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 66: Installation Of Adapter For Mounting Annular Ring Flash On The Lens

    ATTENTION. In using the microscope without the lens protective glass may damage the lens. ATTENTION. At the end of work with the ring flash adapter install a lens protective glass instead it. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 67: Installing 4D Smartphone Adapter

    Unscrew the locking ring and remove the cap from the binocular adapter. Install the GoPro adapter as shown in the picture. Screw in the locking ring all the way to the stop. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 68: Binocular Assistant Channel Installation

    Screw the locking screw of the lock into the channel housing of the binocular assistant, completely until it stops Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 69: Installing The Assistant Monitor Mounting And Connection System

    Installation/Replacement of Additional Components 6.8. Installing the assistant monitor mounting and connection system Unscrew the plug from the balance bracket body. Plug Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 70 Install the lobe by aligning the holes on it and on the body. Secure the lobe by tightening the screws. Thread the washer. Place the assistant's monitor on the arm. Tighten the screw. Screw Washer Lobe Monitor Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 71: Installing The Tablet Mounting And Connection System

    Plug Install the lobe by aligning the holes on it and on the body. Secure the lobe by tightening the screws. Thread the washer. Install the tablet mount bracket. Tighten the screw. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 72 Installation/Replacement of Additional Components Screw Washer Lobe Tablet mounting Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 73: Operation

    PROHIBITED. To fully unscrew and remove the force adjustment knob and the movement adjustment handle of the microscope movable parts during its operation. FORBIDDEN. Raise the balancing bracket when it is folded. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)
  • Page 74 6 - movement limiter (latch); 7 - power supply unit; 12 - light filter; 13 - rack; 14 - lens; 15 - power cable; 16 - HDMI cable; 17 - the basis is mobile. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 75: Adjustment Of Interpupillary Distance And Diopter Adjustment

    Fix the position of the diopter rings by screwing the fixing screws until tight. Focus on the observation object and switch the magnification of the optical system in turn (7.3) to make sure that the image is sharp at all magnifications. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 76: The Switching Of Magnifications Of The Optical System

    The knobs have a position marking of the optical head magnification ratio (6 positions) relative to the position of the knobs. Total magnification of the optical system of the microscope is specified in 4.1. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 77: Using The "Smart Light"Option

    To enable this option, you must unscrew the dimming resistor to a minimum until it clicks. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 78: Using The "Fluorescent Light" Option

    To turn on the light filter, press the lever near the right magnification switch until it stops. After finishing work with fluorescent light, remove the filter from the visual channel by lifting the lever to a horizontal position. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 79: The Use Of The Filter Lens

    To enter the green filter into the light channel, it is necessary to move the frame of the filter to the right, all the way to the stop (until you hear a characteristic click). Light filter switch handle Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 80: Fine Focusing Of The Lens

    200 mm to 400 mm. The fine focusing knob can be placed in any convenient position relative to the axis of rotation of the lens. Lens fine focusing knob Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 81: Пространственное Перемещение Головки Микроскопа

    Operation 7.8. Пространственное перемещение головки микроскопа Spatial movement of the microscope head is carried out using a V-shaped handle or a T-shaped handle. V-shaped handle Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 82: Rotation Of The Binocular Piece ± 90 ° With The Mechanism Of Axial Rotation Around The Optical Axis

    ± 30 °. ATTENTION. If necessary, remove the binocular rotation ring from the microscope head body, it must be turned to position 0°. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 83: Using 4D Smartphone Adapter

    PROHIBITED. When rotating the adapter, hold the smartphone directly as this will cause the smartphone to fall. ATTENTION. When rotating the adapter, hold it by the clips Rotation adjustment ring of the adapter movement Clips Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 84: Using The Gopro Adapter

    The camera has the ability to broadcast an image in real time to a tablet connected to the microscope using a personal WiFi network. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 85: Using The Binocular Assistant Channel

    The assistant’s binocular channel allows you to adjust the position of the binocular head in two planes. Rotation of the image is carried out by turning the image rotation ring. 360° 360° 360° Image rotation ring Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 86: Using The Assistant Monitor/Tablet Mounting

    You can also choose the optimal position of the monitor/tablet in height using a nut. Telescopic leg nut Rotation locking knob Monitor Telescopic leg nut Rotation locking knob Tablet holder Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 87: Adjustment Of The Tilt Of The Balancing Lever

    ATTENTION. The tension force of the gas springs may vary depending on the ambient temperature. PROHIBITED. To adjust the tension of a gas spring with a sudden change of the ambient temperature. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 88: Adjustment Of The Camera Optimal Parameters

    Look into the eyepieces, focus on any object and, make a test picture, alternately for each zoom head. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 89: Microscope Maintenance

    8. 3. Sterilizing/cleaning silicone caps 1. Steam method - 132 - 134 C for 5-10 minutes; 2. Air method - 180 C for 60 minutes. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 90: Troubleshooting

    Adjust the values of the diopter of the when magnification is eyepieces is wrong eyepieces (7.2) changed Eyes get tired during Diopter adjustment of Adjust the values of the diopter of the observation eyepieces is wrong eyepieces (7.2) Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

  • Page 91: Replacement Of The Fuse Element

    Close the fuse compartment and connect the power supply plug. Secure the power plug with holding lock. PROHIBITED. To use the microscope if the power connector is not fixed with the lock. Microscope MD-500 Operation Manual (revision: 26 date: 29.10.2021)

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