natus OLYMPIC SMART SCALE 50 Instruction Manual
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natus OLYMPIC SMART SCALE 50 Instruction Manual

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Instruction Manual
OLYMPIC SMART SCALE
®
Model 50/51
Read and be familiar with this manual before installing,
operating, or servicing this device. To ensure operator,
CAUTION
technician, and patient safety, use only as specified in
this manual.
602016C

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  • Page 1 Instruction Manual OLYMPIC SMART SCALE ® Model 50/51 Read and be familiar with this manual before installing, operating, or servicing this device. To ensure operator, CAUTION technician, and patient safety, use only as specified in this manual. 602016C...
  • Page 3 The information in this manual is subject to change without notice. No part of this manual may be photocopied, reproduced, translated, or reduced to any electronic medium without the express written permission of Natus Medical Incorporated. All tradenames and trademarks mentioned herein are property of their respective owners.

  • Page 5: Table Of Contents

    Contents Section Overview ......... . 1-1 Conventions .
  • Page 6 Section Troubleshooting ........5-1 Technical Support ..........5-4 Section Service .

  • Page 7: Overview

    S e c t i o n Overview This manual provides the necessary information to install, maintain, and service ® the Olympic Smart Scale Model 50/51. The operating instructions in this manual are intended for use under the direct supervision of a licensed medical practitioner. The installation and service instructions in this manual are intended for use by qualified service technicians.

  • Page 8: Symbols

    Symbols Symbols The following symbols are located on the Olympic Smart Scale and its packaging. Table 1.2 Symbols Symbol Definition Symbol Definition Alternating current (ac) Nonionizing voltage electromagnetic radiation Atmospheric pressure Protective earth (ground) Caution, read instructions Rechargeable battery Electrical shock hazard Shipping Fuse Storage...

  • Page 9: Intended Use

    Intended Use Intended Use ® The Olympic Smart Scale Model 50/51 is intended for weighing infants and children up to 55 lb (25 kg). Description The Olympic Smart Scale Model 50/51 is a scale that quickly and safely weighs pediatric patients, from infants to toddlers. It features folding ends to easily accommodate the patient (see Figure 1.2).

  • Page 10: Controls And Status Lights

    Description Controls and Status Lights Figure 1.3 Controls and status lights Control Buttons (Display). Turn the scale display on or off. ON/OFF If operating on batteries, the scale automatically turns off after three minutes of inactivity. NOTE Cancels (tares out) the weight of any objects (e.g., blankets, toys) on the ZERO.

  • Page 11: Averaging The Weight Of An Active Patient

    ±200 g, the scale locks the last average on the display. This process occurs in just four to six seconds. To assure accuracy, Natus Medical determined the design parameters for calculating averaged weight by weighing active infants on a special platform using a strip chart recorder to measure the dynamic forces generated by the infant’s...
  • Page 12 Description OLYMPIC SMART SCALE Model 50/51 Instruction Manual...

  • Page 13: Installation

    S e c t i o n Installation Electrical shock hazard when the enclosure is open. Unplug the power cord from the electrical outlet when installing this device. WARNING Only qualified technicians should assemble this device. Read and be familiar with this instruction manual before assembling this device. CAUTION Installing the Smart Scale The Smart Scale requires minimal handling during unpacking and installation.

  • Page 14: Attaching The Smart Scale To Its Cart (Mobile Base)

    KG/LB Attaching the Smart Scale to Its Cart (Mobile Base) Natus Medical manufactures a cart (mobile base) for the Smart Scale Model 50. The Model 51 is the Smart Scale Model 50 with this cart. NOTE Before using the scale on a cart, securely attach the Smart Scale to the cart as described in the following instructions.
  • Page 15 Installing the Smart Scale To attach the scale on the cart: Place the scale on top of the cart, then open the cabinet door of the mobile base. Using the probe, align the four threaded holes in the scale (see Figure 2.2) with the four mounting holes in the top of the cart (see Figure 2.3).

  • Page 16: Before First Use

    Before First Use Before First Use Initial Battery Charge The Smart Scale has internal rechargeable batteries that automatically charge whenever the scale is plugged into an electrical outlet. Before operating the scale on its batteries for the first time, charge the batteries for approximately 2.5 hours to reach full charge.

  • Page 17: Testing The Device

    Testing the Device Testing the Device Perform the test procedure to ensure the Smart Scale is working properly after performing assembly and service procedures. Required Items: Calibration weights (part no. 56357) To test the Smart Scale: Press and hold while pressing KG/LB ON/OFF Verify that all lights illuminate.
  • Page 18 Testing the Device OLYMPIC SMART SCALE Model 50/51 Instruction Manual...

  • Page 19: Operation

    S e c t i o n Operation Explosion hazard. Do not use this device in the presence of flammables (e.g., oxygen, nitrous oxide, anesthetics). WARNING Read and be familiar with this instruction manual before using this device. Only use this device under the direct supervision of a licensed medical practitioner. CAUTION Connect this device directly to a properly grounded hospital-grade outlet.

  • Page 20: Setting The Caster Brakes

    Operating the Smart Scale Place the patient on the platform: For still patients, the weight automatically displays. Read and record the weight. For active patients, press to average the weight and AVERAGE/UNLOCK lock it on the display. Read and record the weight, then press to unlock the display.

  • Page 21: Adjusting The Platform Ends

    Operating the Smart Scale Adjusting the Platform Ends To adjust the platform ends: While holding the platform end press the large red button labeled PUSH TO (see Figure 3.2), then gently lower the platform end to the full-down UNLATCH position. Lower one or both ends to accommodate the patient being weighed.

  • Page 22: Weighing The Patient

    Operating the Smart Scale Weighing the Patient Always clean/disinfect the scale between patients. CAUTION Kilograms/Pounds-Ounces When the scale is first turned on, it shows the weight in the last-used units. To change the display weight, press . Kilograms display to 0.02 kg. KG/LB This scale has an option to permanently lock the measurement units to kilograms (see Locking Units to Kilograms (optional) on page 2-1).

  • Page 23: Recalling The Last Locked Weight

    Operating the Smart Scale Press to unlock the display. AVERAGE/UNLOCK Press to recalculate and display the patient’s weight. AVERAGE/UNLOCK Recalling the Last Locked Weight If the Smart Scale is turned off or loses power, press to display the last RECALL locked-in weight.
  • Page 24 Operating the Smart Scale OLYMPIC SMART SCALE Model 50/51 Instruction Manual...

  • Page 25: Maintenance

    S e c t i o n Maintenance Electrical shock hazard when the enclosure is open. Unplug the power cord from the electrical outlet before cleaning this device. WARNING Only qualified technicians should perform maintenance procedures. Do not allow liquid to enter the enclosure as liquids may cause a shock hazard or CAUTION damage the internal wiring.

  • Page 26: Charging The Battery

    Charging the Battery Charging the Battery The Smart Scale has internal rechargeable batteries that automatically charge (CHARGING signal illuminates) whenever the scale is connected to a functioning electrical outlet. Connect this device directly to a properly grounded hospital-grade outlet. CAUTION Partially discharging and recharging the rechargeable batteries repeatedly over time will lead to premature battery failure.

  • Page 27: Calibrating The Smart Scale

    Calibrating the Smart Scale Calibrating the Smart Scale As with any precision electronic instrument, the scale can drift out of calibration over time. Calibrate the Smart Scale before first use and every six months. Required Items: Calibration weights (part no. 56357) To calibrate the Smart Scale: Place the scale on a firm, level surface and protect it from moving air.
  • Page 28 Calibrating the Smart Scale OLYMPIC SMART SCALE Model 50/51 Instruction Manual...

  • Page 29: Troubleshooting

    S e c t i o n Troubleshooting Should you experience difficulty when operating your Smart Scale, consult the following table. For problems not listed in the table, contact Natus Medical (see page 5-4). Table 5.1 Troubleshooting chart Problem Probable Cause Solution Scale won’t turn on...
  • Page 30 Electromagnetic Check for electromagnetic interference interference (see page 8-4). Damaged load cell Contact Natus Medical (see page 5-4). Damaged main PCB Test the main PCB (see page 6-9); replace if necessary (see page 6-12). Damaged power Test the power supply PCB (see supply PCB page 5-4);...
  • Page 31 C 0 on the scale. Excess vibration Place the scale on a stable surface. Damaged load cell Contact Natus Medical (see page 5-4). Scale won’t calibrate; Incorrect calibration Use an NIST traceable 12.5-kg weight. stops at C 12500...

  • Page 32: Technical Support

    (see page 6-12). Unreadable Electrical fast transient Install a filter on power input lines. display/garbled bursts Contact Natus Medical (see page 5-4). Technical Support For technical support, contact Natus Medical at: Toll-free: 1-866-940-7143 (US/Canada) Phone: +1-206-767-3500 (international) Fax: +1-206-767-0573 Email: Seattle_technical_service@natus.com...

  • Page 33: Service

    To ensure performance to factory specifications, it is recommended that all replacement parts be those either manufactured or sold by Natus Medical. After all repair actions and tests are complete, perform the pre-operative test procedure in this manual (see page 2-5) to ensure proper operation and compliance with published specifications.

  • Page 34: Repair Procedures

    Lift the platform assembly up to expose the weighing platform (see Figure 6.3). The platform assembly, with its hinged ends, cannot be repaired in the field and should not be disassembled. If it is damaged, return it to Natus Medical for repair or replacement. NOTE...
  • Page 35 Repair Procedures Figure 6.2 Exposing the weighing platform Platform assembly Weighing platform Flat-head cap screws (x2) Socket-head cap screws (x2) Remove the weighing platform: Remove the two socket head cap screws and the two flat head cap screws (see Figure 6.2). Lift the weighing platform to expose the PCBs (see Figure 6.3).

  • Page 36: Reassembling The Smart Scale

    Repair Procedures Reassembling the Smart Scale After performing a service procedure, reassemble the Smart Scale and verify that it operates correctly before use. Required Items: Allen wrench To reassemble to scale: Attach the weighing platform: When reinstalling the weighing platform, confirm that the channel connected to the right load cell is square and that the swing arms move freely.

  • Page 37: Replacing The Fuses

    Repair Procedures Replacing the Fuses If the device does not function when the power cord is plugged in and the power is turned on, a fuse may be blown. The Smart Scale has two fuse locations — one accessible by disassembly and two accessible from the back of the device. Main Fuses Required parts: Main fuses, x2 (part no.

  • Page 38: Internal Fuse

    Repair Procedures Internal Fuse Required parts: Pico fuse, x1 (part no. 200021) ESD protection Allen wrench Solder gun and solder To replace the pico fuse: If the scale is on, press to turn off the scale, then unplug the ON/OFF power cord.

  • Page 39: Replacing The Battery Pack

    Repair Procedures Replacing the Battery Pack If the battery pack no longer holds its charge, replace it. Partially discharging and recharging the rechargeable batteries repeatedly over time will lead to premature battery failure. To prolong battery health, occasionally run the scale NOTE on battery power alone until the cells are fully discharged, then fully recharge the battery for 2.5 hours.

  • Page 40: Testing The Membrane Switch Panel

    Repair Procedures Testing the Membrane Switch Panel Test the membrane switch panel if the , or AVERAGE UNLOCK ZERO do not function. Required Items: Allen wrench ESD protection Jumper wires (x2) Voltmeter To test the membrane switch panel: If the scale is on, press to turn off the scale, then unplug the ON/OFF power cord.

  • Page 41: Testing The Ribbon Cables

    Repair Procedures If so, test the display PCB ribbon cable; replace if damaged. Continue testing internal components, or reassemble and calibrate the scale (see page 6-4, then page 4-3). Testing the Ribbon Cables If the scale is not operating correctly test the ribbon cables, which are connected to the printed circuit boards, for continuity, open shorts, and mis-wires.

  • Page 42: Testing The Power Supply Printed Circuit Board

    Repair Procedures Check the supply voltages (see Table 6.2). Table 6.2 Main PCB test points Test Point Expected Value +5Vdigital 5.00 ±0.1Vdc +5Vanalog 5.00 ±0.1Vdc -5Vanalog -5.00 ±0.5Vdc Reference KG/LB An S1 jumper installed on the main PCB (see page 3-15) will disable the button, forcing the scale to only display kilograms.

  • Page 43: Replacing The Power Supply Printed Circuit Board

    Repair Procedures Replacing the Power Supply Printed Circuit Board If the scale lights do not illuminate or appears to be malfunctioning, a PCB may be damaged. Test the PCB to confirm that it is damaged prior to replacing. Schematics, wiring diagrams, and PCB drawings are located on pages A-1–A-9. If appropriate, test the power supply PCB to determine if replacement is required (see NOTE page 6-10).

  • Page 44: Replacing The Display Printed Circuit Board

    - zero)*10,000]/calconst Counts shown must be between 9000 and 13500 and remain steady. If out of range or fluctuation is more than ±4, contact Natus Medical for support (see page 5-4). 6-12 OLYMPIC SMART SCALE Model 50/51 Instruction Manual...

  • Page 45: Returning For Service

    Returning for Service When sending equipment for service: Contact Natus Customer Service for a Return Merchandise Authorization (RMA) number and the location where the equipment should be sent. Clean the device, securely package it,and include the RMA number on the outside of the box.
  • Page 46 Returning for Service 6-14 OLYMPIC SMART SCALE Model 50/51 Instruction Manual...

  • Page 47: Replacement Parts

    S e c t i o n Replacement Parts Only use Natus Medical–approved parts with the Smart Scale. NOTE Ordering Information To order parts and accessories, contact: Natus Medical Incorporated Customer Service Department Toll-free: 1-800-303-0306 Phone: +1-650-802-0400 Fax: +1-650-802-6620 Email: customer_service@natus.com...
  • Page 48 Ordering Information OLYMPIC SMART SCALE Model 50/51 Instruction Manual...

  • Page 49: Specifications

    S e c t i o n Specifications Intended Use Environmental ® The Olympic Smart Scale Model 50/51 is Temperature intended for weighing infants and children up to Operating: 50–104°F 10–40°C 55 lb (25 kg). Shipping: -40–158°F -40–70°C Storage: -4–113°F -20–45°C Dimensions Relative Humidity (RH)
  • Page 50 Product Service Service can be performed by hospital technicians. Item See Ordering Information on page 7-1 for more Smart Scale Model 50 ....56350 information.

  • Page 51: Electromagnetic Specifications - Manufacturer's Declaration

    Electromagnetic Specifications – Manufacturer’s Declaration Electromagnetic Specifications – Manufacturer’s Declaration The Olympic Smart Scale is intended for use in the electromagnetic environment specified below. The customer or the user of the Smart Scale should assure that it is used in such an environment. Table 8.1 Electromagnetic emissions Emissions Test...
  • Page 52 Electromagnetic Specifications – Manufacturer’s Declaration Table 8.3 Electromagnetic immunity IEC 60601 Immunity Test Compliance Level Electromagnetic Environment — Guidance Test Level Portable and mobile RF communications equipment should be used no closer to any part of the Smart Scale, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter.

  • Page 53: Recommended Separation Distances Between Portable And Mobile Rf Communications Equipment And The Olympic Smart Scale

    Electromagnetic Specifications – Manufacturer’s Declaration Recommended Separation Distances Between Portable and Mobile RF Communications Equipment and the Olympic Smart Scale The Smart Scale is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the Smart Scale can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the Smart Scale as recommended below, according to the maximum output power of the communications equipment.
  • Page 54 Electromagnetic Specifications – Manufacturer’s Declaration OLYMPIC SMART SCALE Model 50/51 Instruction Manual...

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