Model 550-10 Digital Chair Scale Operation Manual Rev E Dec 2014

Contents 1.0 2.0 3.0

Introduction... 1 Cautions and Warnings... 2 Scale Assembly ... 3 3.1 Unpacking Your Scale... 3 3.2 Save Packaging... 3 3.3 Setting Up Your Scale... 3

4.0

Scale Operation ... 10 4.1 Weighing... 11 4.2 Hold/Release Function... 11 4.3 Preset Tare... 11 4.4 Toggle Tare... 11 4.5 Using the Body Mass Index (BMI) Function... 12

5.0

RS-232 Communication ... 13 5.1 Pushbutton Keypad Print... 13 5.2 USB Connection... 13

6.0 7.0

Troubleshooting and Testing ... 14 Maintenance ... 14 7.1 Basic Maintenance... 14 7.2 Cleaning... 14

8.0 Rice Lake 550 Digital Chair Scale Specifications ... 15 For More Information ... 16

© Rice Lake Weighing Systems. All rights reserved. Specifications subject to change without notice. Rice Lake Weighing Systems is an ISO 9001 registered company. Software version 114154 December 2014, Rev. E

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Rice Lake 550 Digital Chair Scale Operation Manual

1.0

Introduction

The Rice Lake 550 Digital Chair scale is efficiently designed to provide accurate, reliable and repeatable weight measurements and has features that enable a fast and convenient weighing process. The Rice Lake 550 Digital Chair scale features an ergonomic design, has two armrests that can be lifted separately and a foot rest that can be folded. Its four swivel casters can be locked in place.

Figure 1-1. Rice Lake 550 Digital Chair Scale

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2.0

Safety

With the Rice Lake 550 Digital Chair scale there are certain precautions that should be taken to prevent personal injury to the user and damage to your scale.

2.1

Safety Signals

Safety Signal Definitions: WARNING

Indicates a potentially hazardous situation that, if not avoided, may result in death or serious injury

CAUTION Indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury.

Important Indicates information about procedures that, if not observed, could result in damage to equipment.

2.2

Safety Precautions Do not operate or work on this equipment unless you have read and understand instructions in the manual. 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. Proper care is your responsibility.

Before attempting to operate this unit, make sure every individual who operates or works with this unit

WARNING has read and understands the following safety information. Please follow these instructions carefully.

• • • • • • • • • • • • • • •

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Do not transport the scale while the platform is loaded. Always lock the caster brakes of the chair before seating the patient. Make sure the footrest is in the up position when seating the patient. Do not drop the scale or subject it to violent shocks. 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. Weight exceeding the maximum capacity (660 Lb/300 Kg) may damage your scale. Do not use in the presence of flammable materials. Operating at other voltages and frequencies than specified could damage the equipment. Use only medically approved AC adaptors. 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 adaptors, utilizing an adaptor not supplied by us voids all warranties. These scales are used to determine weight of people while sitting. To avoid cross contamination, the scale plate must be cleaned regularly. It is recommended after each weighing which could result in potential contamination such as when there is direct skin contact during the weighing process. The scale is not waterproof so avoid contact with excessive moisture. To prevent injury, do not exert unnecessary force on the arm rests.

Digital Chair Scale Operation Manual

3.0 3.1

Scale Assembly Unpacking Your Scale

Place the unopened box in an open area that has ample room for unpacking the scale. Parts contained in the shipping box include: • The chair scale • This manual • Box labeled Parts Inside • The Parts Inside box contains the following: • Serial communication cable • AA batteries (6) • 5 mm Allen key • M6 x 16 Allen screws (4) - (to attach seat to base)

3.2

Save Packaging

If the Rice Lake 550 Digital Chair scale must be returned for any reason, it must be properly packed with sufficient packing materials in the original carton.

Note Damage caused by improper packaging is not covered by the warranty.

3.3

Setting Up Your Scale

Use the following steps to set up the Rice Lake 550 Digital Chair scale. Move the box into an area where the scale can be assembled. It’s recommended that the scale be placed on a hard, level surface for the most accurate weighments. 1. Locate the operator’s manual from inside the box and set it aside as it will provide instructions on the proper scale removal and set up. “Parts Inside Box” Location

Figure 3-1. Chair Scale Packaging Once Out of the Box

2. Locate and remove the “Parts Inside” box and locate the 5 mm Allen key.

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3. Remove top Styrofoam piece and remove the seat from the attached Styrofoam.

Figure 3-2. Remove Seat From Packaging

4. Set the seat aside for later assembly. 5. Remove the side and the back handle Styrofoam pieces.

Figure 3-3. Remove Side Styrofoam Pieces From Packaging

Note

The chair is heavy so use assistance in taking it out of the box and placing it on the floor, making sure it does not get dropped.

Figure 3-4. Chair Scale Without Side Packaging Materials

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Digital Chair Scale Operation Manual

6. Lift chair off of Styrofoam packing material using assistance and place it on the floor.

Figure 3-5. Lift Chair off of Styrofoam Bottom Packaging

7. Collect the Styrofoam pieces and place them back in the carton box. Chair Assembly

Use the following steps to assemble the chair. 1. Use the Allen key provided in the “Parts Inside” box. 2. Release both of the screws holding the back handle frame (which is marked with circles in Figure 3-6). Remove screws to release the back handle frame. Do not completely unscrew the screws.

Figure 3-6. Remove Screws to Release the Back Handle Frame

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3. Remove Styrofoam pieces from the main handle.

Figure 3-7. Remove Styrofoam Packing Pieces from Main Handle

4. Pull out the back handle frame and rotate it so that the indicator will be facing up.

Figure 3-8. Pull out Frame and Rotate

5. Insert the main handle into the frame and secure it with the screws.

Tighten screws once frame has been rotated

Figure 3-9. Tighten Screws Once Frame Has Been Rotated and Reinserted

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Digital Chair Scale Operation Manual

6. Connect the load cell cable and indicator cable making sure to position the load cell cable on the grooves so that it doesn’t get damaged or pinched.

Figure 3-10. Connect Load Cell Cable and Indicator Cable

7. Use the Allen key (provided) to release both screws holding the arm rest frame (marked with circles below).

Figure 3-11. Loosen Screws Holding Arm Rest Frame

8. Rotate the arm rest until the arm rests are parallel to the seat base. 9. Tighten the screws to secure the arm rests in place.

Note

The arm rests can move up and down to allow easy patient access.

Figure 3-12. Arm Rest Assembly

10. Place the seat on the seat base and secure it into place using the four (4) M6 x 16 Allen screws.

Secure seat to scale using 4 screws

Figure 3-13. Secure Seat to the Scale Using Screws

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11. Use level bubble to check for level and adjust feet as needed by adjusting bolts located on top of each caster wheel.

Bubble level location

Adjust bolt located above caster to adjust bubble level

Figure 3-14. Bubble Indicates that the Scale is Level

Note

Ensure casters are in a locked position prior to having a patient sit down on the chair scale.

Figure 3-15. Brake Location on Each Caster Wheel

12. Foot rest must be in the UP position prior to patient sitting down on the chair scale. Once the patient is seated, you can lower the foot rest.

Figure 3-16. Flip Footrest Down

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Digital Chair Scale Operation Manual

Inserting Batteries

The Rice Lake 550 Digital Chair scale uses six (6) AA batteries which offers an average of 25 hours of continuous use from the batteries. The batteries come with the product. To install the batteries, 1. Open the battery chamber cover. 2. Insert batteries.

Figure 3-17. Batteries in Battery Chamber

3. Close battery chamber cover. If an external power supply or USB power is connected, the battery flag on the display is turned off. When on battery or USB power supply, the backlight power is deducted to 60 percent. AC Power Connections

The Rice Lake 550 Digital Chair scale has an optional 120 VAC adaptor or 230 VAC adaptor to use when power is readily available. The optional AC power adaptor plugs into the back of the indicator as shown in Figure 3-18. Rice Lake Weighing Systems offers optional AC adaptors, utilizing an adaptor not supplied by us voids all warranties.

Connect the optional AC power adaptor.

Figure 3-18. Power Connection

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4.0

Scale Operation

The Rice Lake 550 Digital Chair scale display has various front panel keys. They are shown below.

Figure 4-1. Rice Lake 550 Digital Chair Scale Front Panel Display Keys Key Descriptions

Table 4-1 describes each of the Rice Lake 550 Digital Chair scale’s key functions. Key

Name

Function

On/Off

Switches the scale on or off

Print LB/KG

Print - A long key press will send data out from the RS-232 and USB ports. LB/KG - A short key press allows the user to toggle between kilograms and pounds providing that it’s enabled in configuration mode.

Zero

Clears the weight off the scale and returns it back to zero.

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.

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 settings.

Tare

Is used to subtract the weight off the scale, ie: oxygen tank, other equipment.

Clear

Allows you to return to normal weighing when the BMI value is being displayed.

On/Off

Print LB/KG

Zero

Hold Release

BMI

TARE T

CLEAR

Table 4-1. Digital Chair Scale Key Functions

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Digital Chair Scale Operation Manual

Key

Name

Function

ENTER

Used to accept height in BMI mode.

Up/Down Arrows

Used to adjust height input (0.5 in/0.5 cm) while in BMI mode.

ENTER

Table 4-1. Digital Chair Scale Key Functions

Note

The keys on the front panel display are very sensitive so only a gentle pushing motion is required to obtain results.

CAUTION

To prevent injury, do not exert unnecessary force on the arm rests.

The scales have the capability of performing different operations beyond just calculating weight. The various operating instructions are described below.

4.1

Weighing

Use the following steps to weigh a person. 1. Press the On/Off key to turn on the scale and 0.0 will appear on the display along with ZERO on the upper display. 2. Have the person sit down on the scale. The display shows the person’s weight, and the LOCK annunciator is on in the upper display and beeps to indicate the end of the weighing process. 3. To change the display from Lb to Kg and vice-versa, press the LB/KG key. 4. To turn off the scale, press and hold the On/Off key until OFF appears on the display.

4.2

Hold/Release Function

Use the following steps to use the Hold/Release function: 1. When the person is on the scale, press the Hold/Release key. 2. When the person gets off the scale, the weight and the HOLD & LOCK annunciator will remain on the display. 3. At this stage the ZERO key will not work. The only way to return to zero from here is to press the Hold/ Release key one more time. Note

4.3

Pressing the HOLD key prior to a person getting on the scale will also work.

Preset Tare

Use the following steps to use the Preset Tare: 1. When the weight is set to 0.0, place the extra load on the scale and press the TARE key until the display returns to 0.0 and NET appears on the display. 2. Remove the extra load from the scale. The weight will appear with a negative symbol to the left of it. 3. Ask the patient to sit down on the scale with the extra weight. The display then shows the patient’s weight. The NET annunciator is still on. The weight of the extra load remains stored in memory. 4. To cancel the tare weight, press and hold the TARE key until NET disappears from the display and the display turns back to 0.0 and GROSS appears. Tare weight is also canceled when the scale is turned off.

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4.4

Toggle Tare

Use the following steps to use the Toggle Tare function: 1. When the weight is set to 0.0, press the TARE key. 2. The default tare value is displayed (default is programmed to be 33.0 Lb/15.0 Kg), while the zero is flashing. 3. Use the UP/DOWN arrow keys to adjust the value. 4. Press ENTER to start the tare function and the NET annunciator will be turned on instead of the GROSS annunciator.

4.5

Using the Body Mass Index (BMI) Function

Use the following steps in determining the BMI. LB Mode

1. 2. 3. 4.

Ensure that the scale is at zero. Have the person sit down on the scale to obtain a weight. The LOCK annunciator is illustrated on the display. Press the BMI key. The BMI and FT/IN annunciators are lit on the display and a default value of 5 feet and 7.5 inches (ie: 5-07.5) is flashing. 5. Use the UP/DOWN arrow keys to adjust the height value, and press the ENTER key to move to the next step. 6. The BMI value and BMI annunciator is shown on the display. Press CLEAR to return to the weighing mode and the BMI function will be turned off.

KG Mode

1. 2. 3. 4.

Ensure that the scale is at zero. Have the person sit down on the scale to obtain a weight. The LOCK annunciator is illustrated on the display. Press the BMI key. The BMI and CM annunciators are lit on the display and a default value of 170.0 cm (ie: 170.0) is flashing. 5. Use the UP/DOWN arrow keys to adjust the height value, and press the ENTER key to move to the next step. 6. The BMI value and BMI annunciator is shown on the display. Press CLEAR to return to the weighing mode and the BMI function will be turned off.

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Digital Chair Scale Operation Manual

5.0

RS-232 Communication

The scale comes with an RS-232 port which enables weight data to be transmitted to other equipment, such as a computer or printer. The RS-232 cable with DB-9 connector (PN 100719) is available from Rice Lake Weighing System. Figure 3-18 on page 9 shows where the RS-232 connection is. The RS-232 parameters are 9600 baud (selectable in the programming mode), 8 data bits, 1 stop bit, no parity and no handshaking. There are three methods of communication: • Pushbutton keypad print • Standard remote protocol • Escape protocol

5.1

Pushbutton Keypad Print

With a stable, in-range weight, press and hold the LB/KG/Print key for at least three seconds, or until the scale displays “PRINT.” Note that if the scale does not beep after five seconds, then release the button as the weight was either in motion, or out of range. • If displaying weight and not BMI, the scale will send out the following 21 character string: xxxxxxxxx<SP>uu<SP>mmmmm<SP><CR><LF> Where: xxxxxxxxx is the weight with decimal point and " - " sign, if negative uu is the unit (Lb or Kg). mmmmm is the mode (gross or net) Examples: -10 Lb net = <SP><SP><SP><SP>-10.0<SP>lb<SP><SP>Net<SP><SP><SP><CR><LF> 10 Lb gross = <SP><SP><SP><SP><SP>-10.0<SP>lb<SP>Gross<SP><CR><LF>

•

In BMI mode (displaying the BMI value), the scale will send out the following data:

GROSS WEIGHT TARE WEIGHT NET WEIGHT PATIENT HEIGHT PATIENT BMI

5.2

215.0 LB 0.0 LB 215.0 LB 6-01.0 FT 28.4

USB Connection

The Rice Lake 550 Digital Chair scale has the capability of connecting to a PC using a USB connection and a USB cable (not included). That connection location is shown in Figure 5-1.

USB Connection RS-232 Connection

Figure 5-1. USB Connection Port and RS-232 Connection Port

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Connecting software and downloads should be addressed by your IT department and can vary depending on what type of computer platform you’re using. Basic information on USB driver installation using Windows is described in the following steps and serves only as an example. The USB driver can be downloaded from the Rice Lake Weighing Systems website at the following location; http://www.ricelake.com/software.aspx Select Medical/Health Scales, Software and Get Downloads. Opening any product will show a USB driver download. click on Download to open and download the driver to your computer. 1. The graphic below shows the window that pops up when the USB cable is connected to the indicator and the scale is turned on.

Follow the screen prompts to navigate through the screens below. 2. Select No, not this time and then select Next. 4. The following screen appears while the driver is installing on to your system.

3. Select Install the software automatically, then select Next.

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Digital Chair Scale Operation Manual

5. The following screen appears when the installation is complete. Click on Finish.

6. If you want to verify the installation, you can view the driver by looking at the device manager of your system.

7. To print a ticket using the USB driver, open the software driver (shown above) and the port assigned to that driver is shown. 8. Ensure that the USB cable is properly connected and the unit is on. 9. Another terminal type program (such as Hyperterminal) needs to be opened and connected through the USB driver to the indicator to be able to see the information being sent to the PC. A port needs to be established so select the port that is assigned to Parpar and print the ticket. The following example tickets will print.

A single print ticket has four spaces after the “patient weight” and only one space between weight and

Note lb in the examples shown above. Then seven <CR><LF> after.

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6.0

Troubleshooting and Testing

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

Possible Cause

Scale does not turn on

Corrective Action

Dead battery

Connect the scale to a power source.

Faulty electrical outlet

Use a different electrical outlet.

Bad power supply

Replace optional adaptor.

External object is interfering with the scale

Remove the interfering object from the scale.

Display did not show 0.0 before weighing

Help the patient off the scale, zero the scale and begin the weighing process again.

Scale is not placed on a level floor

Ensure the scale is level and begin the weighing process again.

Scale is out of calibration

Check the weight with a known weight value.

The display shows a STOP message

The load on the scale exceeds the capacity of the scale

Remove the excess weight and use the scale according to manufacture’s specs.

The display shows LO Bat message

The battery is low

Recharge the battery.

Err 2

Low saturation state (low A/D)

The load cell is not connected properly. Check the cables and mechanical connections. If the problem persists, replace the set of load cells.

Err 3

High saturation state (high A/D)

See Err 2

Err 6

Unstable weight. Cannot calibrate

Check the load cells’ mechanical surroundings and see that nothing touches them and that the cables are properly welded.

Questionable weight or the scale does not zero

The display shows Err message as detailed in the table below

Table 6-1. Troubleshooting Table for the Rice Lake Scale Line

7.0

Maintenance

The following section provides instructions for maintaining and cleaning the Rice Lake line of scales. Maintenance operations other than those described in this section should be performed by qualified service personnel.

7.1

Basic Maintenance

Before the first use of the scale and after periods of non-use, check the scale for proper operation and function. If the scale does not operate correctly, contact qualified service personnel. Go through the following steps for basic maintenance. 1. Check the overall appearance of the entire scale for any obvious signs of damage, abuse, etc. 2. Inspect the condition of the optional AC adaptor for cord cracking or fraying or for broken or bent prongs.

7.2

Cleaning

Proper care and cleaning is essential to ensure a long life of accurate and effective operation. Before beginning the cleaning process, disconnect the scale from the AC power source. 1. Clean all external surfaces with a clean, damp cloth or tissue. Mild soap and water solution may be used. Dry with a clean soft cloth. 2. Do not immerse the scale into cleaning or other liquid solutions. 3. Do not use Isopropyl alcohol or other solutions to clean the display surface.

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Digital Chair Scale Operation Manual

8.0

Rice Lake 550 Digital Chair Scale Specifications

Power Optional AC Adaptor - 120 VAC-9VDC-60Hz / 230 VAC-9VDC-50Hz

Battery Type (6) AA size Alkaline batteries

Battery Use 25 hours continuous use Automatic power-off can be configured

Data Communications RS-232 with RJ-45 jack USB Connection Selectable baud rate, default - 9600 8 bits No parity 1 stop bit No handshaking

Environmental Operating Temperature 50 to +95°F (10 to 35°C) Storage Temperature 32 to 122°F (0 to 50°C) Humidity 85% relative humidity

Capacity and Graduation Digital Chair Scale 660 Lb (300 Kg)

0.2lb (0.1Kg)

Seat Dimension 17"W x 15"L x 16"H Inner Dimension arm to arm at narrowest point 19-3/4"

Certifications and Approvals RoHS Compliant

Digital Chair Scale Operation Manual - Rice Lake 550 Digital Chair Scale Specifications

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