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ii Handrail Scale Technical and Operating Instructions
1.0Introduction
The Rice Lake Digital Handrail Scale is designed for weighing bariatrics and ensures sound, accurate weighing
information. A non-skid platform paired with side rails assists persons who need extra support and safety. The
scale is set up to use motion sensing weighing technology, to determine the actual weight of a moving patient.
The weights is displayed on the indicator and can be displayed in pounds or kilograms.
This manual can be viewed and downloaded from the Rice Lake Weighing Systems web site at
www.ricelake.com/health. Rice Lake W
eighing Systems is an ISO 9001 registered company.
Figure 1-1. Digital Handrail Scale
1
2.0Scale Assembly
Unfold handles
and set upright
2.1Unpacking 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 scale
•This manual
•Small box containing AC adaptor and RS-232 cable
•6 mm Allen Key
2.2Repacking
If the Digital Handrail Scale must be returned for modification, calibration or repair, it must be properly packed
with sufficient packing materials. Whenever possible, use the original carton when shipping the scale back.
NOTE: Damage caused by improper packaging is not covered by the warranty.
2.3Setting Up Your Scale
Use the following steps to set up the Digital Handrail Scale.
1. Locate the operation manual from inside the box and set aside as i
proper set up.
2. Using two people, remove the scale out of the packaging material that
of the box by the scale base.
NOTE: DO NOT lift the scale out of the box by its handle as this can cause the hinges to break.
3. 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 fine but not recommended.
4. Gently set the scale platform down to the floor
5. Loosen the handles using the Allen key and unfold handles and set upright.
.
t will provide instructions on the
it came in by lifting the scale out
Figure 2-1. Set Up Sides to a Vertical Position
6. Adjust the feet to ensure that the base of the scale base is not touching the floor.
7. Screw in all four legs
8. Attach the wrap around rails.
9. Tighten the hex screw head using the enclosed 6 mm Allen key to stabilize the sca
2 Handrail Scale Technical and Operating Instructions
le.
AC Power Connections
Connect the AC power
source here
LED indicator light
illuminates from red to
green when charged
Store the 120 VAC
adaptor here when
not in use
RS-232 port
connection
Store the 230 VAC
adaptor here when
not in use
Back cover to
indicator
Retaining Screw
The Digital Wheelchair Scale has a 120 VAC adaptor or 230 VAC adaptor to use when power is readily available.
The AC power adaptor plugs into the back of the indicator as shown in Figure 2-2.
Figure 2-2. LED Light Location
.
The AC adaptor, when not in use, plugs into the back housing of the indicator for storage. Figure 2-2 shows that
location.
The Digital Wheelchair Scale is capable of running its internal sealed lead-acid rechargeable battery if no
additional power source i
s available. Battery life is approximately 75 hours. If the
LO Bat indicator is showing on
the display, recharge the battery or connect the scale to an AC power source as soon as possible for accurate
weighing.
Battery Charging
When the AC adaptor is connected to a power source, the rechargeable battery goes into recharge mode.
NOTE: To maintain battery longevity we recommend you charge it on a regular basis rather than waiting until it is fully
discharged.
The LED indicator light on the back of the scale housing will illuminate red during the charging period, and
change over to green when the battery becomes fully charged.
Connect the load cell into the load cell connection point. You will he
Put the back on the indicator and secure with the four back cover screws that were previously set aside.
2.4Getting Ready to Weigh a Patient
Once the scale is properly unpacked and set up, and prior to weighing a patient, step on the scale to check the
scale that all functions are working correctly. The scale is calibrated from the factory so simply turn on the scale
and step on the scale to get a weight reading. Press the
ar a "click" affirming a secure connection.
REWEIGH key again to verify that weight.
Figure 2-3. Press the Reweigh Key to Verify Weight
Handrail Scale Technical and Operating Instructions - Scale Assembly3
3.0Scale Operation
#AUTION
The display has various front panel keys. They are shown below.
Figure 3-1. Front Panel Display Keys
KeyNameFunction
ON-OFF/ZEROON-OFF - Switches the scale on or off
ZERO - Clears weight off the scale and returns it back to zero.
BMI/TAREBMI - Enables the user to access the BMI (Body Max Index) function.
TARE - Used to subtract a weight off the scale ie: wheelchair
REWEIGHAllows you to reweigh a patient without having them leave the scale.
Kg-Lb/PRINT Allows the user to toggle between kilograms and pounds.
Press this key to print a weight if connected to a printer.
Table 3-1. 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.
3.1Weighing
Use the following steps to weigh a person.
1. Press the
2. Ask the patient or person to step onto the scale. The
beeps to indicate the end of the weighing process.
3. To reweigh, press the
4. To change the display from Kg to Lb and vice
5. If the display hold feature is on (OP6=1), the weight will remain on the display
steps off the scale. To clear the weight, press the
6. To turn off the scale, press and hold the
On-Off/Zero key to turn on the scale and 0.0 will appear on the display.
display shows WEIGH, then the person’s weight, and
REWEIGH key.
-versa, press the Kg-Lb key.
On-Off/Zero key.
On-Off/Zero key until OFF appears on the display.
even after the patient
4 Handrail Scale Technical and Operating Instructions
3.2Using the Body Mass Index (BMI) Function
Body mass index (BMI) is the relationship between weight and height associated with body fat and health risk. It
is a reliable indicator of body fatness for people and even though BMI does not measure body fat directly,
research has shown the BMI correlates to direct measures of body fat. BMI is an inexpensive and
easy-to-perform method of screening for weight categories that may lead to health problems for adults.
Calculating BMI is one of the best methods for population assess
calculation requires only height and weight, it is inexpensive and easy to use for clinicians and for the general
public. The calculation is based on the following formulas:
Calculate BMI by dividing weight in pounds (lbs) by height in inches (in) squared and multiplying by a
conversion factor of 703.
Ex
ample: weight = 150 lbs, height = 5’5 (65")
2
Calculation: [150
÷ (65)
] x 703 = 24.96
The standard weight status categories associated with BMI ranges for adults a
BMIWeight Status
Below 18.5Underweight
18.5 - 24.9Normal
25.0 - 29.9Overweight
30.0 and AboveObese
Table 3-2. Standard Weight Status
The following examples show weight ranges, the corresponding BMI ranges and the weight status categories for
a sample height.
ment of overweight and obesity. Because
re shown in the following table.
HeightWeight RangeBMIWeight Status
5’9”124 lbs or lessBelow 18.5Underweight
125 lbs to 168 lbs18.5 to 24.9Normal
169 lbs to 202 lbs25.0 to 29.9Overweight
203 lbs or more30 or higherObese
Table 3-3. BMI Ranges and Weight Status Example
Use the following steps in determining the BMI.
1. To use the BMI function, weigh the patient as described under Weighing (above)3.1 and then press the
BMI key. If weighing in Lbs, the default height of (5 feet) appears on the display. Use the up or down
arrows to increase the feet height by one foot increments). Press the
BMI key again to display inches
(default is 7.0 inches) Again, use the up or down arrows to increase or decrease the inches height by 0.5"
increments. Press the
BMI key again to accept the inches value. The final height value will be displayed
ie: 5-07.5 = 5’ 7.5".
2. If you are weighing in Kgs, the default will be 170.0 cm. Use the up or down arrows to increase
decrease by 0.5 cm increments.
3. To see the patient’s calculated BMI, press the
4. To cancel the BMI display, press the
BMI key.
BMI key again. The BMI appears.
or
Handrail Scale Technical and Operating Instructions - Scale Operation5
3.3Using the Tare Function
You can use the tare function for deducting an extra weight (such as a wheelchair, or medical equipment attached
to the patient) in a weighing operation.
Use the following steps to use the
1.
With the scale set to
of the load.
2. Press and hold the
appears on the left side of the display.
3. Remove the load from the scale. The weight of the load appears with
4. Ask the patient to step onto the scale with the load. The displa
the weight of the load.
5. The weight of the load remains sto
carrying the same tare weight. For example, when using the same wheelchair for weighing more than
one patient.
6. To cancel the tare weight, press and hold the
weight is also cancelled when the scale is turned off.
Use the following steps to enter a tare without
you’ve got a patient in a wheelchair and the wheelchair has a known weight (has been tagged) you can enter that
weight manually.
1. With the scale set to
alternate between a value and the word TARE .
2. To change the value, press and hold the
value you want. Example: If you want 103.5, hold the key until the display is
3. To advance to the next digit, press the
the right most digit will again be 0. Again, hold the Kg/Lb key until the right most digit is equal to the
next digit in the numbers you want.
4. Continue as in Step 3 until you are displaying the value you want, then press the
5. You can now accurately weigh the patient.
6. To cancel the tare weight, press and hold the
weight is also cancelled when the scale is turned off.
tare function.
0.0, place the extra load on the scale. The display shows WEIGH and then the weight
TAR E key until TARE appears on the display. The display returns to 0.0 and TARE
a negative symbol to the left of it.
y then shows the patient’s weight without
red in memory, so you can continue to weigh patients who are
TAR E key until TARE disappears from the display. The tare
placing that item on the scale. An example of this would be if
0.0 Lbs (there must be no weight on the scale), press the TAR E key. The display will
Kg/Lb key until the right most digit is equal to the first digit of the
0.1.
Kg/Lb key twice quickly. The digit you changed will move left and
TARE key.
TAR E key until TARE disappears from the display. The tare
6 Handrail Scale Technical and Operating Instructions
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