RICE LAKE H251-10-4 Health Weigh Multi Function Handrail Scale Instruction Manual

Healthweigh® H251-10-4
Class I MDR Multifunction Handrail Scale Operation Manual

H251-10-4 Health Weigh Multi Function Handrail Scale

August 13, 2024
PN 217469 Rev B

© 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.

Table i. Revision Letter History

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® Handrail Scale is 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, providing the weight of the wheelchair occupant. It is not designed to weight a bed/stretcher.
The scale is used to establish weight and height, as well as BMI (Body Mass Index). Communication is through serial and/or USB cable. The transmission is sent to a printer or PC with a click of a button. A simple and easy protocol allows a trouble-free interface to an EMR data base system.

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 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 manufacturer. This could result in increased electromagnetic emissions or decreased electromagnetic immunity leading resulting in malfunction (see Section 6.0 on page 20).
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 (see Section 6.0 on page 20).
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 (see Section 6.0 on page 20).

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 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 serial interface that can connect to the equipment compliant with EN60601-1 standard.
Do not use 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 in excess of 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. Attention should be paid that flammable mixture may also be formed from anesthetic means that contain oxygen or nitrous oxide (laughing gas).
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 the safe use by operator and patient.
The scale purpose is to determine weight in course of medical practice.
Used as non-automatic scale a person is to be positioned in the center of the scale plate. The weighing value can be read off after a stable weighing value has been obtained.
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.

1.1 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 in accordance with 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 weight of patients.

2.1 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, and a box labeled Parts Inside.
Parts Inside box should include the following parts:

• Set of hardware kit for hand rail fixation
• Four feet for the scale
• 5 mm Hex key (Allen key)
• Power adapter 230/120/ ACV 50/60 Hz – 9 VDC 0.5 AMP
• RS232 communication cable 2.0 meter

Remove the scale units from the box and arrange them on a clear work area.

• Scale platform
• handrails
• Hardware kit for attaching the handrails

CAUTION: Do not drop the scale. Dropping the scale might damage the scale and cause personal injury
Tools Required for Assembly:
5 mm Hex key (Allen key) supplied
2.2 Assembling the Scale
Use the following procedure to assemble the scale:

1. Lower the base platform down to the floor.
   CAUTION: The platform is heavy. Take care not to drop it.
   Dropping the platform might damage the measuring results.

2. Unfold the rail into vertical position.

3. Use the hexagon key to tighten the screws into the hinges.

4. Tilt back the scale and assemble the feet of the scale.

5. Attach the side rails by placing each side rail into the hole on the main handrail and in the hole on the base (total 4 holes)
   IMPORTANT: Up side is marked on all of handrail adapters.

6. Fix all four points with the Allen screw

7. Tighten the Allen screw heads to ensure that the scale is firmly secured and stable.

2.3 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 persoinjury.

The scales are equipped with wheels to transport over short distances.

1. Unplug the power adapter from the socket.
2. Tilt back the scale, until the scale weight is fully on the wheels.
3. Gently place the scale in its new position. Be careful not to drop the scale, this might damage the measuring results.
4. Plug the power adapter unit into the socket.

2.4 Setting the Device
CAUTION: Scale should only make contact with the ground via the foot screw.
Setup the scale in an open area away from other objects.
IMPORTANT: While weighing, ensure that the patient doesn’t touch the scale display.

1. Place the scale on a flat, stable surface.
2. Align the scale by turning the foot screws. The air bubble in the spirit level must be precisely position in the middle of the circle.

2.5 Using the Scale
IMPORTANT: While weighing, ensure that the patient doesn’t touch the scale display.
When folding the chair, fold it to a fully closed position. The chair might fall if not completely closed.

Operation

3.1 Keypad

RS232 (see Section 3.8 on page 14). When data is sent out from the port, the display flashes the word PRINT to acknowledge the data was sent.
In configuration mode, a short press allows toggling between pounds and kilograms. No toggle in BMI mode.
| Zero| Zeroes the weight on the scale if the scale is stable. This function will only work if the weight on the scale is 2% or less of full capacity.
| Hold/Release| Pressing on this key while HOLD indicator is off will keep the most current weight value shown on the display along with the HOLD indicator.
Pressing on this key while HOLD indicator is on will release the weight and turn off the HOLD indicator. This key is not active in BMI mode.
| BMI| Enters BMI mode. Only works if there is a locked weight shown on the display and the function is turned on in the configuration settings.
| Up/Down| Adjusts the value of the flashing digit/number.
| Clear| Causes the value to return to default (170.0 cm). In BMI final result display, pressing this key will return the scale to weighing mode.
| Enter| Accepts the value of the parameter last entered and moves to the next stage.
A long press during scales start-up process will enter id display (before parameter mode).
| Tare| Weight under the limit will enter manual tare. If above the limit will enter tare function. NET and GROSS indicators are on according to the tare operation.

3.2 Display

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

Table 3-2. Display Descriptions

3.3 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.

3.4 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 were sounded.
NOTE: If the setup procedure failed, refer to the troubleshooting section for instructions. 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 power source the LED lights up red. When the battery is completely recharged the LED changes from red to green.
When battery is drained, connect the scale to an AC power source for at least 8 hours to recharge the battery.

3.5 BMI Procedure
kg Mode

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

2. Weight is display (without 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 defaulvalue 170.0 cm. All digits are flashing.

4. Use UP/DOWN buttons to adjust the entire value. Pressing once will adjust by 0.5 cm. If you hold the key down itkeep 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. BMI indicator is off.

NOTE: The last height value entered is saved until the Zero is displayed or 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. 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. NET annunciator will be turned on instead of the GROSS annunciator.

3.6 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 in accordance with 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.

Table 3-3. Battery Status Indicators

• If 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.

3.7 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 to the wall socket.

Table 3-4. Port Connection Locations

3.8 Communication
The scale has a communication protocol: ESC protocol. An ESC protocol is using 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 execute through either RS232 I/O port or 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 support EMR protocol, for addition information contact distributor.

3.9 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 overall appearance of the scale for damage, wear and tear.
Check the batteries for damage, wear and tear. Do not use if damaged.
Inspect AC adapter for cord cracking or fraying or for broken or bent prongs.
WARNING: Maintenance operations not mentioned in this section, should be perform by qualified service personnel.

4.1 Cleaning
Proper care and cleaning is 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 solution.
Clean all external surfaces with a clean damp cloth or tissue.
4.2 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 in accordance with 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.

4.3 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.

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

scale to power source
Replace batteries
Faulty electrical outlet| Use a different outlet
Bad power supply| Replace adapter
Questionable weight/ Scale does not zero| External object interfering with the scale| Check and remove all interference from the scale
Weighing tray is not placed properly| Place the tray in its proper place
Display did not show 0.0 kg before weighing| Remove patient, zero the scale and begin weighing process again
Scale not placed on a stable surface| Place the scale on a stable surface and begin weighing process again
Scale is out of calibration| Check weigh 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| Rechargeable battery is low| Recharge the battery according to instructions

Table 4-1. Troubleshooting Checklist

board – Call technician

Table 4-2. Error List

Specifications

H251-10-4 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
Length: 65 cm
Width: 65 cm
Display Height: 115 cm
Weight: 45 kg
Platform Dimensions
Length: 50 cm
Width: 65 cm
Standing Platform Height: 6 cm
Chair Dimensions
Length: 50 cm
Width: 25 cm

WARNING: In order 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 has 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|
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 transients
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
induced by RF fields| IEC 61000-4-6:2013| Input a.c. power PORT, Input d.c. power PORT,
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% UT: 0.5 cycle
at 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°
0% UT: 1 cycle and 70%
UT: 25/30 cycles sine phase at 0°
Voltage interruptions| IEC 61000-4-11:2004| 0% UT: 250/300 cycle
Proximity magnetic fields immunity test| IEC 61000-4-39:2017| No.
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

UT: 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 has 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 equipments have being used in various healthcare locations where medical equipment and/or systems are used. When they are used in close proximity to 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 meet 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

230 W. Coleman St.
Rice Lake, WI 54868
USA USA: 800-472-6703
International: +1-715-234-9171
© Rice Lake Weighing Systems Content subject to change without notice.
www.ricelake.com
PN 217469 Rev B
August 13, 2024

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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