RICE LAKE H351-10-4 Healthweigh Class I MDR Multifunctional Wheelchair Scale Instruction Manual

RICE LAKE H351-10-4 Healthweigh Class I MDR Multifunctional Wheelchair

Scale

Product Usage Instructions

• Follow the assembly instructions provided in the manual for proper setup of the wheelchair scale.
• Regular maintenance ensures optimal performance.
• Maintenance tasks may include cleaning the scale surface and checking for any loose parts.

FAQ

• Q: Where can I find technical training for this product?
• A: Technical training seminars are available through Rice Lake Weighing Systems. Visit www.ricelake.com/training or call 715-234-9171 for more information.
• Q: How can I access the most current product updates?
• A: The latest product updates, software, and firmware can be found on the Rice Lake Weighing Systems website at www.ricelake.com.

© Rice Lake Weighing Systems. All rights reserved

• Rice Lake Weighing Systems® is a registered trademark of Rice Lake Weighing Systems.
• All other brand or product names within this publication are trademarks or registered trademarks of their respective companies.
• All information contained within this publication is, to the best of our knowledge, complete and accurate at the time of publication.
• Rice Lake Weighing Systems reserves the right to make changes to the technology, features, specifications, and design of the equipment without notice.
• The most current version of this publication, software, firmware, and all other product updates can be found on our website: www.ricelake.com

Revision History
This section tracks and describes manual revisions for awareness of major updates.

Technical training seminars are available through Rice Lake Weighing Systems.
Course descriptions and dates can be viewed at www.ricelake.com/training or obtained by calling 715-234-9171 and asking for the training department.

Introduction

• The Healthweigh® Wheelchair Scale models are an electronic device designed to measure the weight of a wheelchair occupant who is unable to vacate their wheelchair.
• It may also function as a patient stand-on scale.
• It is designed as a floor-standing or floor-integrated platform whereby the known weight of the wheelchair is subtracted from the total measured weight to provide the weight of the wheelchair occupant.
• It is not designed to weigh a bed/stretcher.
• The scale models are very accessible due to the exceptionally wide ramps.
• Each scale is designed to provide accurate, reliable, and repeatable weight measurements and has features that enable a fast and convenient weighing process.
• The scales are also designed with two heavy-duty rear wheels for easy portability.
• The design patented scales are multifunctional. Weight is automatically displayed.
• Then, after height is entered into the scale, the patient’s BMI is displayed.
• Manuals are available from Rice Lake Weighing Systems at www.ricelake.com/manuals
• Warranty information is available at www.ricelake.com/warranties

Safety Definitions

• DANGER: Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury. Includes hazards that are exposed when guards are removed.
• WARNING: Indicates a potentially hazardous situation that, if not avoided, could result in serious injury or death. Includes hazards that are exposed when guards are removed.
• CAUTION: Indicates a potentially hazardous situation that, if not avoided, could result in minor or moderate injury.
• IMPORTANT: Indicates information about procedures that, if not observed, could result in damage to equipment or corruption to and loss of data.

General Safety

• Do not operate or work on this equipment unless this manual has been read and all instructions are understood.
• Failure to follow the instructions or heed the warnings could result in injury or death.
• Contact any Rice Lake Weighing Systems dealer for replacement manuals.
• WARNING: Failure to heed could result in serious injury or death.
• Do not use in the presence of flammable materials.
• Operating at other voltages and frequencies than specified could damage the equipment.
• Use only medical-approved mains adapters compliant with EN60601-1 standard.
• Do not modify this equipment without the authorization of the manufacturer.
• Do not put this equipment next to or stacked on top of other equipment.
• This may result in malfunction. If such placement is unavoidable, ensure equipment is monitored regularly for correct operation.
• Do not use accessories, transducers or cables other than those specified or provided by the manufacturer.
• This could result in increased electromagnetic emissions or decreased electromagnetic immunity leading resulting in malfunction.
• Portable RF communications accessories (including peripherals such as antenna cables and external antennas) should be used no closer than 30 mm to the equipment or cables specified by the manufacturer.
• This may result in equipment performance degradation.
• Ensure the equipment is located in a shielded location. Failure to do so may result in performance degradation, interference with other equipment or interference with radio services.
• This equipment has been tested for radiated RF immunity at selected frequencies.
• Using this equipment near equipment emitting other frequencies could result in improper operation.
• CAUTION: To prevent injury, never leave the person being weighed unattended while on the scale.
• To prevent injury, do not transport the scale while a patient is on the scale.
• Make sure no load is on the scale before transporting the scale.
• Do not drop the scale or subject it to violent shocks.
• The scales are for determining the weight of persons in rooms intended for carrying out medical care.
• The scales are NOT intended to diagnose, prevent, and monitor diseases.
• The scales are equipped with a serial interface that can connect to the equipment compliant with EN60601-1 standard.
• IMPORTANT: For accurate weighing, the scale must be placed on a flat, stable surface.
• For accurate weighing, verify proper operation according to the procedure described in this manual before each use.
• If the “LO Bat” indicator activates, for accurate weighing, recharge the battery or connect the scale to an AC power source as soon as possible.
• To avoid cross-contamination, clean the scale plate after each weighing. Avoid direct skin contact during weighing.
• Materials in the products have been tested and approved for safe use by the operator and patient.
• All batteries included with Healthweigh products intended for sale in the EU market are classified as ‘Portable Batteries for General Use’ and comply with European Battery Regulation (EU) 2023/1542.

Disposal

Product Disposal

• The product must be brought to appropriate separate waste collection centers at the end of its life cycle.
• Proper separate collection to recycle the product helps prevent possible negative effects on the environment and to health and promotes the recycling of the materials.
• Users who dispose of the product illegally shall face administrative sanctions as provided by law.

Battery Disposal
Dispose of batteries at appropriate waste collection centers at the end of their life cycle under local laws and regulations. Batteries and rechargeable batteries may contain harmful substances that should not be disposed of in household waste. Batteries may contain harmful substances including but not limited to cadmium (Cd), lithium (Li), mercury (Hg) or lead (Pb). Users who dispose of batteries illegally shall face administrative sanctions as provided by law.
WARNING: Risk of fire and explosion. Do not burn, crush, disassemble, or short-circuit lithium batteries.

Setup

• Scales must be verified to monitor the weight of patients.
• IMPORTANT: The purpose of this scale is to determine weight in the course of medical practice.
• Weight can be read after the stable value has been obtained.
• CAUTION: Do not use a scale for dynamic weighing.
• Do not leave a permanent load on the weighing plate. This can damage the scale.
• Be careful to avoid shock and overloading the scale over the prescribed maximum load rating (MAX) minus any tare weight that is already present.
• Never operate the scale in a hazardous location.
• The scale design is not explosion-proof. A flammable mixture can form from anesthetic means containing oxygen or nitrous oxide (laughing gas).

Scale Parts

Unpacking the Scale

• Visually inspect the scale to ensure all components are included in the box. The box should contain the scale, the indicator, this manual, a communication cable and a power adapter.

• Use the carrying handle on the front surface of the scale base to lift the scale out of the packaging. Place the scale gently on all four feet.

• CAUTION: Do not drop the scale. Dropping the scale might damage the scale and cause personal injury

• IMPORTANT: Do not lift the scale by the handrail. This may break the rail hinges.

Assembling the Scale
Use the following procedure to unfold the scale:

1. Lower the base platform down to the floor.
   CAUTION: Scale should only make contact with the ground via the foot screw.
   Set up the scale in an open area away from other objects.
   Do not drop the scale. Dropping the scale may damage the scale or cause personal injury.

2. Loosen the knobs on each side by turning them counterclockwise.

3. Unfold the handrail into a vertical position.

4. Tighten the knobs on each side by turning them clockwise.

5. Level the scale by turning the foot screws. The air bubble must be in the middle of the circle.

6. Plug the power adapter unit into a socket.

Configuring the Scale for Seated Use

1. Fold the seat into a horizontal position.
2. Lower the legs and extend leg brackets to their locked position.

Configuring the Scale for Wheelchair Use
The seat must be fully folded down to enable wheelchair access to the scale surface.

1. Bend the leg brace up.
2. Fold the seat leg in and under the seat.
3. Fold the seat down.

Transporting the Scale
CAUTION: Ensure there is no load on the scale.
While folding the chair, fingers might be caught and pinched and cause personal injury.
IMPORTANT: Do not drop the scale while repositioning. Dropping the scale might damage the scale or cause personal injury.
The scales are equipped with wheels to transport over short distances.

1. Unplug the power adapter from the socket.

2. Start with a chair in wheelchair configuration.

3. Fold the Seat up.
   IMPORTANT: Scale will not be transported if the seat is folded down.

4. Loosen knobs on a handrail.

5. Fold the Handrail down.

6. Use the handle on the front of the base to lift and position the scale onto the wheels.

7. Roll the scale to its new location.

8. Reassemble the scale.

Operation

Keypad

Display

pressing the HOLD again)
oz| Unit of mass on the Imperial and US customary measurement systems

Scale Operation

1. Power the scale using either method below:
   • Connect the scale to the wall outlet with the AC adapter.
   • Ensure rechargeable batteries are installed.
2. Press the ON/OFF button to turn the scale on. The display will show START, display test, version number, and finally 0.000.
3. When the self-test function is complete, the digital display should read 00.0 and the charge indicator should be illuminated on the back.
4. The scale is ready to weigh a load.

Weighing

1. Place a weight on the scale. The digital display should blink until the weight calculation is complete.
2. Press PRINT to select kilograms or pounds.
3. Press REWEIGH. The digital display should again show the weight of the scale display.
4. To keep the weight reading, press the HOLD button. HOLD displays.
5. Remove the weight from the scale. The digital display should continue to show the weight.
6. Press the HOLD button. The HOLD indicator will disappear and the digital display should return to zero.

WARNING: Three beeps sound upon weighing. Make sure the HOLD button is released if no beeps are sounded.
NOTE: If the setup procedure failed, refer to the troubleshooting section for instructions (see Table 4-1 on page 18). If the problem is not resolved, refer to qualified service personnel.
The rechargeable batteries automatically recharge when the AC adapter connects to the power source.
When the AC adapter is inserted into the power source the LED lights up red. When the battery is completely recharged the LED changes from red to green.
When the battery is drained, connect the scale to an AC power source for at least 8 hours to recharge the battery.

BMI Procedure

1. A person steps on the scale while ZERO displays.
   IMPORTANT: While you are weighing, ensure that the patient doesn’t touch the scale display.

2. Weight is displayed (without the HOLD annunciator turned on).

3. Press the BMI button to enter BMI mode. BMI and cm indicators are on and the display shows the height’s default value of 170.0 cm. All digits are flashing.

4. Use the UP/DOWN buttons to adjust the entire value. Pressing once will adjust by 0.5 cm. If you hold the key down it will keep increasing or decreasing the values.

5. Press ENTER to accept the values. BMI value shows on the display.

6. Pressing CLEAR to return to weighing mode. The BMI indicator is off.

NOTE: The last height value entered is saved until the Zero is displayed or a negative weight is detected. At this point, the value returns to the default value.

Hold/Release Function

1. When the person is on the scale, press the HOLD\RELEASE key.
2. When the person steps off the scale the weight will remain the same.
3. The ZERO indicator will not turn on. At this stage, the Zero button will not work. The only way to return to zero from here is to press the HOLD\RELEASE key once more.

Tare Function

1. When the weight is below the START parameter value press the TARE key.
2. The default tare value is displayed (factory programmed at 15.0 kg) while the ZERO annunciator is flashing.
3. Use the UP/DOWN key to adjust the value.
4. Press ENTER to start the tare function. The NET annunciator will be turned on instead of the GROSS annunciator

Manual Tare

1. When the weight is above the START parameter value press the TARE key.
2. The tare will activate with the value that was displayed at the time of the tare activation.
3. The NET annunciator will be turned on instead of the GROSS annunciator.

Rechargeable Battery
The indicator is supplied with a rechargeable battery, which will be inserted at the back of the indicator. The battery is secured with a Y shape crossbar, secured with two Philips screws to the indicator. A cover closes the indicator back.

NOTE: A Philips head screwdriver is required for battery removal.
IMPORTANT: Dispose of batteries at appropriate waste collection centers at the end of their life cycle by local laws and regulations. Batteries and rechargeable batteries may contain harmful substances that should not be disposed of in household waste. Batteries may contain harmful substances including but not limited to cadmium (Cd), lithium (Li), mercury (Hg), or lead (Pb). Users who dispose of batteries illegally shall face administrative sanctions as provided by law.

Battery Indicator

• If an external power supply is connected the battery flag is turned off.
• When on battery, the backlight power is reduced to 60 percent.

NOTE: Charge indicator LED will light RED upon connecting the power adapter. The LED will light GREEN when the rechargeable batteries are fully charged.

Power and Communication Connections

the lower right connector, on the connectors’ panel marked with the word COM. Afterward, the RS232 communication cable will be connected to the computer.
USB Communication Port| The RS232 communication cable will be connected to the lower right connector, on the connectors’ panel marked with the word COM. Afterward, the RS232 communication cable will be connected to the computer.
Power Supply Connection| The power adapter will be connected to the left connector, on the connectors’ panel, marked with power inlet specification. Afterward, the power adapter will be inserted into the wall socket.

Communication
The scale has a communication protocol: ESC protocol. An ESC protocol uses the escape (0X1B or ASCII 27) to indicate that there is a command following. On the computer, side there must be a listener created by the vendor that will interpret this protocol. This listener must also take care of all the issues regarding data integrity, etc., to make sure that the data sent and received is valid.
Communication can be executed through either an RS232 I/O port or a USB I/O port. The communication parameters are:

• 9600 baud (selectable in the programming mode)
• 8 data bits
• 1 stop bit
• No parity
• No handshaking

For the USB connection, the USB driver installation will be on Windows® systems. The USB driver can be downloaded from the distributor and installation will be with the distributor’s guidance. The scale supports EMR protocol, for additional information, contact the distributor.

Print Button
A long press will send data from both RS232 and USB ports. When data is transmitted out via a port the display flashes the word PRINT to acknowledge the data was sent.

In weight mode

• PATIENT WEIGHT 60.1 kg

In BMI (On calculated BMI display only)

• For kg Unit of Measurement:
• PATIENT WEIGHT 60.1 kg
• PATIENT HEIGHT 170.0 cm
• PATIENT BMI 20.8

In case of underweight or overweight, the word UNDER or OVER will be sent accordingly.

Maintenance

• This section provides instructions for maintenance, cleaning, and troubleshooting Healthweigh scale models.
• IMPORTANT: Before first use and after periods of non-use, check the scale and batteries for proper operation and function.
• If the scale does not operate correctly, refer to qualified service personnel.
• Check the overall appearance of the scale for damage, wear, and tear.
• Check the batteries for damage, wear, and tear. Do not use if damaged.
• Inspect the AC adapter for cord cracking or fraying or for broken or bent prongs.
• WARNING: Maintenance operations not mentioned in this section, should be performed by qualified service personnel.

Cleaning
Proper care and cleaning are essential to ensure a long life of accurate and effective operation.

• WARNING: Disconnect the scale from the AC power source before cleaning.
• CAUTION: Do not immerse the scale into cleaning or other liquid solutions.
• Clean all external surfaces with a clean damp cloth or tissue.

Replacing Batteries
Use the following instructions to replace batteries:

1. Turn off the scale.
2. Disconnect the scale from the AC power source.
3. Open the batteries’ cover and remove it; keep it for reassembly.
4. Insert rechargeable battery pack.
5. Close the battery cover
6. Turn on the scale.

IMPORTANT: Dispose of batteries at appropriate waste collection centers at the end of their life cycle by local laws and regulations. Batteries and rechargeable batteries may contain harmful substances that should not be disposed of in household waste. Batteries may contain harmful substances including but not limited to cadmium (Cd), lithium (Li), mercury (Hg), or lead (Pb). Users who dispose of batteries illegally shall face administrative sanctions as provided by law.
WARNING: Replacing the rechargeable battery should be performed by qualified service personnel.

Calibration Procedure

• Calibration to be performed by authorized personnel only

IMPORTANT: Scales with OIML Class III compliance have a seal to prevent any unauthorized person from performing calibration.

Troubleshooting

Refer to the following instructions to check and correct any failures before contacting service personnel.

The scale does not turn on when using a rechargeable battery

| Dead battery| Connect scale to a power source
Replace batteries
Faulty electrical outlet| Use a different outlet
Bad power supply| Replace adapter

The questionable weight/ Scale does not zero

| External objects interfering with the scale| Check and remove all interference from the scale
The weighing tray is not placed properly| Place the tray in its proper place
The display did not show 0.0 kg before weighing| Remove the patient, zero the scale, and begin the weighing process again
Scale not placed on a stable surface| Place the scale on a stable surface and begin the weighing process again
The scale is out of calibration| Check weight with known weight value
The display shows STOP| Load on the scale exceeds the capacity| Remove the excess weight and use the scale according to its limits
the display shows __| Load is in under-load condition| Make sure the weighing tray is placed on the base
The display shows LO Bat| The rechargeable battery is low| Recharge the battery according to the instructions

Table 4-1. Troubleshooting Checklist

board – Call technician

Table 4-2. Error List

Specifications

H351-10-4 Capacity and Graduation

• Max 300 kg, Min 2 kg, Graduation (“e”) 0.1 kg

Power Requirements

• Adapter 240V/10, 50/60Hz-9 VDC, 500 mA
• Use only medically approved mains adapters compliant with EN60601-1 standards.

Environmental

• Operating Temperatures: 0°C to 40°C
• Storage Temperatures: 0°C to 50°C
• Humidity: 85%
• Use in atmospheric pressure

Product Dimensions

• Width: 125 cm
• Depth: 110 cm
• Display Height: 115 cm
• Weight: 46 kg

Platform Dimensions

• Width: 75 cm
• Depth: 80 cm
• Standing Platform Height: 6 cm

Chair Dimension

• Height from Platform: 45 cm
• Width: 40 cm
• Depth: 27.5 cm

WARNING: To comply with EN60601-1, use UL/CE approved AC/DC adapter UE15WPC-1201255PA.
The scale is not intended for use in the presence of flammable mixtures.

Appendix

Guidance and Manufacture’s Declaration – Electromagnetic Immunity
The medical scale is suitable for use in the specified electromagnetic environment and it meets the following immunity test levels. Higher immunity levels may cause the medical scale’s essential performance lost or degraded.

Phenomenon

| Basic EMC Standard or Test Method|

Home healthcare facility environment

---|---|---
Electrostatic discharge| IEC 61000-4-2:2008| +/- 8 kV contact

+/- 2 kV, +/- 4 kV, +/- 8 kV, +/- 15 kV air

Radiated RF EM fields| IEC 61000-4-3:2006+A1+A2| 10 V/m

80MHz-2.7GHz

80%AM at 1kHz

Proximity fields from RF wireless communications equipment| IEC 61000-4-3:2006+A1+A2| See the RF wireless communication equipment table in “Recommended minimum separation distances”.
Rated power frequency magnetic fields| IEC 61000-4-8:2009| 30A/m; 50 Hz or 60Hz
Electric fast transient bursts| IEC 61000-4-4:2012| Input a.c. power PORT, Input d.c. power PORT, ±2kV, 100kHz repetition frequency PATIENT coupling PORT, Signal input/output parts PORT: ± 1 kV, 100 kHz repetition frequency
Surges| IEC 61000-4-5:2014| Input a.c. power PORT, Input d.c. power PORT, Line to line: ±0.5kV, ±1kV

Line to earth: ±0.5kV, ±1kV, ±2kV

Signal input/output parts PORT?

±2kV

Conducted disturbances| IEC 61000-4-6:2013| Input a.c. power PORT, Input d.c. power PORT,
induced by RF fields| | PATIENT coupling PORT, Signal input/output parts
| | PORT
| | 3 V in 0.15 MHz – 80 MHz
| | 6 V in ISM and/or amateur radio bands between 0.15 MHz and 80 MHz
| | 80 % AM at 1kHz
Voltage dips| IEC 61000-4-11:2004| 0% U T: 0.5 cycle

at 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°

0% U T: 1 cycle and 70% U T: 25/30 cycles sine phase at 0°

Voltage interruptions| IEC 61000-4-11:2004| 0% U T: 250/300 cycle
Proximity magnetic fields| IEC 61000-4-39:2017| No.
immunity test| | Test frequency
| | Modulation
| | Immunity test level (A/m)
| | 30 kHz
| | CW
| | 8
| | 134.2 kHz
| | Pulse modulation, 2.1 kHz
| | 65
| | 13.56 MHz
| | Pulse modulation, 50 kHz
| | 7.5
U T: rated voltage(s); E.g. 25/30 cycles means 25 cycles at 50Hz or 30 cycles at 60Hz

Guidance and Manufacture’s Declaration – Electromagnetic Emissions
The medical scale is suitable for use in the specified electromagnetic environment and it meets the following standard’s emission requirements.

Phenomenon| Profession Healthcare Facility Environment| Home Healthcare Environment
---|---|---
Conducted and radiated RF emissions| CISPR 11, Group 1, Class B| CISPR 11, Group 1, Class B
Harmonic distortion| IEC 61000-3-2:2005+A1+A2, Class A| IEC 61000-3-2:2005+A1+A2, Class A
Voltage fluctuations and flicker| IEC 61000-3-3:2013| IEC 61000-3-3:2013

Recommended Minimum Separation Distances
Nowadays, many RF wireless equipment are being used in various healthcare locations where medical equipment and/or systems are used. When they are used near medical equipment and/or systems, the medical equipment and/or systems’ basic safety and essential performance may be affected. This medical scale has been tested with the immunity test level in the below table and meets the related requirements of IEC 60601-1-2:2014.
The customer and/or user should help keep a minimum distance between RF wireless communications equipment and this medical scale as recommended below.

Test Frequency (MHz)| Band (MHz)| Service| Modulation| Maximum Power (W)| Distance (m)| Immunity Test Level (V/m)
---|---|---|---|---|---|---
385| 380-390| TETRA 400| Pulse modulation 18Hz| 1.8| 0.3| 27
450| 430-470| GMRS 460

FRS 460

| FM

± 5 kHz deviation 1 kHz sine

| 2| 0.3| 28
710| 704-787| LTE Band 13, 17| Pulse modulation 217Hz| 0.2| 0.3| 9
745
780
810| 800-960| GSM 800/900, TETRA 800,

iDEN 820,

CDMA 850,

LTE Band 5

| Pulse modulation 18Hz| 2| 0.3| 28
870
930
1720| 1700-1990| GSM 1800;

CDMA 1900;

GSM 1900; DECT;

LTE Band 1, 3,

4, 25; UMTS

| Pulse modulation 217Hz| 2| 0.3| 28
1845
1970
2450| 2400-2570| Bluetooth, WLAN,

802.11 b/g/n, RFID 2450, LTE Band 7

| Pulse modulation 217Hz| 2| 0.3| 28
5240| 5100-5800| WLAN 802.11

a/n

| Pulse modulation 217Hz| 0.2| 0.3| 9
5500
5785

CONTACT

• © Rice Lake Weighing Systems Content is subject to change without notice.
• 230 W. Coleman St.
• Rice Lake, WI 54868
• USA USA: 800-472-6703
• International: +1-715-234-9171
• www.ricelake.com

References

• Rice Lake Weighing Systems
• Videos and Webinars | Rice Lake Weighing Systems
• Rice Lake Weighing Systems
• Rice Lake Weighing Systems
• Rice Lake Weighing Systems
• Videos and Webinars | Rice Lake Weighing Systems

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