Rice Lake 350-10-3 User manual

350-10 Series
Digital Wheelchair Scales
Software Revision 11439
Operator Manual
Model 350-10-2 Model 350-10-3
Model 350-10-7 Model 350-10-8
PN 151640 Rev DMarch 16, 2020

An ISO 9001 registered company
© 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.

Contents
© Rice Lake Weighing Systems ● All Rights Reserved i
Contents
1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.0 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Repacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.4 Inserting Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5 AC Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.0 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Weighing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Hold/Release Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Preset Tare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 Toggle Tare. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.5 Body Mass Index (BMI) Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.0 RS-232 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1 Push-Button Keypad Print. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Communication Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2.1 Escape Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.2.2 Maintenance Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 USB Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.0 Maintenance and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1.1 Basic Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Troubleshooting and Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

350-10 Series Digital Wheelchair Scales
ii

Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 1
1.0 Introduction
The Rice Lake Digital Wheelchair Scale is a user-friendly, quality scale, designed for safe weighing of the handicapped and
mobility challenged individuals. Movement compensation technology ensures sound, accurate weighments. The scale has roll
on ramp access and comes in four different configurations:
• Single ramp folding wheelchair scale
• Single ramp platform wheelchair scale
• Dual ramp folding wheelchair scale
• Dual ramp platform wheelchair scale
The scale has a non-skid rigid platform and two rear heavy duty wheels for easy maneuverability.
Manuals and additional resources are available from the Rice Lake Weighing Systems website at www.ricelake.com/health
Figure 1-1. Digital Wheelchair Scale (single ramp and dual ramp models shown)
The scale is set up to use motion sensing technology, to determine actual weight of a moving patient. The weight can be
displayed in pounds or kilograms and you can enter a tare weight. Section 3.0 on page 6 of this manual explains the scale
operation and how to obtain a tare weight.
The wheelchair scale has a unique folding feature that enables easy transportation and simplifies assembly, avoiding the need
for field wiring and recalibration. All that is required is to open the packaging and unfold the scale.
Model 350-10-2 Model 350-10-3
Model 350-10-7 Model 350-10-8

350-10 Series Digital Wheelchair Scales
2
1.1 Safety
There are certain precautions that should be taken to prevent personal injury to the user and damage to your scale.
Safety Signal Definitions:
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.
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.
Indicates a potentially hazardous situation that, if not avoided, could result in minor or moderate injury.
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.
Failure to heed could result in serious injury or death.
Do not drop the scale or subject it to violent shocks.
For accurate weighing, the scale must be placed on a flat, stable surface.
Do not transport the scale while someone is standing on it.
Weight exceeding the maximum capacity (1000 lb/453 kg) may damage your scale.
Operating at voltages and frequencies other than specified could damage the equipment.
If the LO Bat indicator activates, for accurate weighing, replace the batteries or connect the scale to an AC power source as soon
as possible.
Rice Lake Weighing Systems offers optional AC adapters, utilizing an adaptor not supplied by us voids all warranties.
To avoid cross contamination, the scale should be cleaned regularly.
Avoid contact with excessive moisture.
Do not allow minors (children) or inexperienced persons to operate this scale.
Do not jump up and down on the scale.
Do not use in the presence of flammable materials.
Do not make alterations or modifications to the scale.
People with disabilities, or who are physically frail, should always be assisted by another person when using this scale.
Do not use the scale on slippery surfaces, such as a wet floor.
Do not use this scale when your body/feet are wet, such as after taking a bath.
DANGER
WARNING
CAUTION
IMPORTANT
WARNING

Assembly
© Rice Lake Weighing Systems ● All Rights Reserved 3
2.0 Assembly
2.1 Unpacking
Place the unopened box in an open area that has ample room for unpacking the scale.
Recommended tools needed to set up your scale include:
• Scissors or a box cutter
Using scissors or a box cutter, cut the strapping bands that secure the box together. Immediately after opening the box, visually
inspect the scale and components to ensure all parts are included and undamaged.
Parts contained in the shipping box include:
• Scale
• Box containing six AA batteries and four feet
2.2 Repacking
If the Rice Lake Digital Wheelchair Scale must be returned or moved, it must be properly packed with sufficient packing
materials. When possible, use the original carton and packing material.
Damage caused by improper packaging is not covered by the warranty.
2.3 Setup
Move the scale into the area where the weighing process will occur. It’s recommended to place the scale on a hard, level
surface for the most accurate weighments. Thin carpeting is acceptable, but not recommended.
Rice Lake recommends using two people for lifting the scale and to use proper lifting techniques to prevent
injury.
Do not lift the scale out of the box by its handle as this can cause the hinges to break or affect the scale
operation.
1. Using two people, lift the scale out of the box by the base.
2. Stand the scale on edge to remove the packing material.
Figure 2-1. Scale on Edge
IMPORTANT
CAUTION
IMPORTANT

350-10 Series Digital Wheelchair Scales
4
3. Screw the four feet clockwise into the scale base as far as possible.
4. Turn each foot counterclockwise two full rotations, to ensure there is adequate clearance between the scale and the
floor.
5. Lower the scale base down to the floor carefully.
There should be minimal clearance between the scale base and the floor. Figure 2-2 shows the width of a finger being
slid between the scale base and the floor.
Not having clearance around the scale base creates inaccurate weighments.
Figure 2-2. Clearance Between Scale Base and Floor
6. Gently press down on all corners of the scale base to ensure there are no high spots or rocking of the scale base. The
scale must be completely level.
An unleveled base produces inaccurate weight readings.
7. Turn the knobs to loosen the hinges and raise the handle.
8. Tighten the knobs to secures the handrail and the indicator mounted on it.
Figure 2-3. Loosen Hinges to Raise Handles
IMPORTANT
IMPORTANT
Hinge Knob

Assembly
© Rice Lake Weighing Systems ● All Rights Reserved 5
2.4 Inserting Batteries
The six AA batteries that come with the scale offer an average of 25 hours of continuous use.
To install the batteries:
1. Open the battery chamber cover by turning the thumbscrew to the left and remove the cover.
2. Insert batteries into the battery chamber as illustrated in the back of the chamber.
Figure 2-4. Battery Chamber
3. Put the cover in place and turn the thumbscrew to the right to secure it.
Batteries must be removed from the unit prior to long periods of disuse or long term storage.
If an external power supply or USB power supply is connected, the battery flag on the display is turned off.
When using battery or USB power supply, the back light power is deducted to 60%.
2.5 AC Power Connections
Use the optional 120 VAC or 230 VAC adapter when power is available. Rice Lake Weighing Systems offers optional AC
adapters that plug into the back of the indicator as shown in Figure 2-5.
Using an adapter not supplied by Rice Lake Weighing Systems voids all warranties.
Figure 2-5. Power Connection
Thumb
Screw
Note
IMPORTANT
AC Power
Connection

350-10 Series Digital Wheelchair Scales
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3.0 Operation
The Rice Lake Digital Wheelchair Scale display has various front panel keys as shown in Figure 3-1.
Figure 3-1. Front Panel Display Keys
Key Descriptions
Table 3-1 describes each of the key functions.
The keys on the front panel display are very sensitive so only a gentle pushing motion is required to obtain
results.
The scales have the capability of performing different operations beyond just calculating weight. The various operating
instructions are described below.
Item No Name Function
1 BMI Enables the user to access the BMI (Body Mass Index) function. This key only works if there is a locked weight shown on
the display and the BMI function is turned on in the configuration mode.
2 TARE Used to subtract the weight off the scale, example: oxygen tank, other equipment.
3 CLEAR Allows the user to return to normal weighing when the BMI value is being displayed.
While in BMI mode, the height display causes the value to return to the default of 190.0 cm, 5 ft, 7.5 in.
4 Print
LB/KG
Print — A long key press will send data out from the RS-232 port.
LB/KG — A short key press allows the user to toggle between kilograms and pounds providing that it’s enabled in
configuration mode.
There is no toggling while in the BMI mode.
5 Zero Clears the weight off the scale and returns it to zero after three seconds.
It works only if the current weight is stable and zero up to 2% of full weight.
6 Hold
Release
Hold & Release — The first press holds the most current weight value shown on the display.
A second press releases the weight value shown.
This key is not active while in BMI mode.
7 On/Off Switches the scale on or off.
8 ENTER Used to accept height in BMI mode.
Accepts the value of the parameter last entered and moves to the next stage.
A long press of the ENTER key during the scale’s start up process will enter the ID display (pre-parameter mode).
9 Up/Down Arrows Used to adjust height input (0.5''/0.5 cm) while in BMI mode.
Adjusts the value of the flashing digit/number.
Table 3-1. Rice Lake Digital Wheelchair Scale Key Functions
1234
5
6
7
98
IMPORTANT