Tiger TWH-01 User manual

TWH-01
Electronic Physician Scale with BMI
Operation Manual
Contents subject to change without notice
Version 1.0
2019-4-22

CONTENTS
1. INTRODUCTION.........................................................................1
General Information ......................................................................................................1
Specifications................................................................................................................1
2. Unpacking and Setup................................................................2
3. OVERVIEW OF CONTROLS AND FUNCTIONS .......................4
3.1 Display Descriptions...............................................................................................4
3.2 Key Description.......................................................................................................5
3.3 Indicator Display Character Definitions ................................................................6
4. OPERATIONS.............................................................................7
4.1 Correct Weighing.....................................................................................................7
4.2 How to change the unit...........................................................................................7
4.3 Tare function............................................................................................................7
4.4 Weighing with preset tare values...........................................................................8
4.5 HOLD function.........................................................................................................8
4.6 BMI function.............................................................................................................8
4.7 Connecting additional devices...............................................................................9
4.8 Print out a record.....................................................................................................9
5. Troubleshooting ......................................................................10

WH-C . 1 .
1. INTRODUCTION
General Information
Thank you for purchasing the scale. Please read all operating instructions carefully before
use and keep the following points in mind:
Avoid lengthy exposure to extreme heat or cold, your scale works best when operated
at normal room temperature. Always allow the scale to acclimate to a normal room
temperature before use
Allow sufficient warm up time. Turn the scale on and wait for a few minutes if possible,
to give the internal components a chance to stabilize before weighing.
These electronic scales are precision instruments. Do not operate near an in-use cell
phone, radio, computer or other electronic device. These devices emit RF and can
cause unstable scale readings. If your scale ever performs poorly, try moving the scale
to a different room or location.
Avoid using in condition of heavy vibration and airflow.
Read the weight reading in short time after loading. The output signature of load cell
and A/D may be little influenced after weighing for a long time.
Specifications
Model
TWH-01
Maximum capacity
300kg /600 lb
Minimum weight
2 kg / 4 lb
Scale division
0.1 kg / 0.2 lb
Weighing units
Kg, lb
Display
6 digits 1" (25mm) high, 7 segments LCD display with
backlight
Height rod range
60-212cm / 23"-83"
Interface
RS232, USB
Platform size
275mm x 375mm
10.83” x 14.76”
Overall dimension
291mm x 617mm x 1309mm
11.46” x 24.29” x 51.54”
Environment for Use
Temperature: 5ºC-40ºC;
Humidity: <85℅ RH
Power
Batteries: 4 x “AA” size cells (not included)
AC Adapter: 9Vdc/600mA, with central positive
(included)

WH-C . 2 .
2. UNPACKING AND INSTALLATION
Take all scale parts out of the carton and put them on a flat and hard surface. Follow below
procedures to fulfill the installation.
1. Place the cable (4) through the pillar (3).
2. Insert the pillar (3) into the tube support
(6).
3. Put the indicator bracket on the pillar
bracket.
4. Insert the 2 screws (2) through the holes
on the pillar bracket, tighten with nuts (18) and
flat washers (17), secure the bracket of pillar
to the indicator bracket (1),
5. Make sure the screws are securely
tightened.
6. Plug the connectors of indicator cable and load cell
cable from base together.
7. Rotate the pillar to position the indicator (1) in the
direction desired, and then tighten the 2 screws (5) into
the fixing tube (6).

WH-C . 3 .
8. Loose the screw on the upper bracket (8).
9. Locate the height rod (7) onto the fixing points (9) of the upper bracket (8) & lower
bracket (12).
10. Secure the bolt and washer to the bracket on the base (10).
11. Tighten the bolt on the upper bracket (9).

WH-C . 4 .
3. OVERVIEW OF CONTROLS AND FUNCTIONS
3.1 Display Descriptions

WH-C . 5 .
3.2 Key Description

WH-C . 6 .
3.3 Indicator Display Character Definitions

WH-C . 7 .
4. OPERATIONS
4.1Correct Weighing
Press the start key ON/OFF/ZERO to enter the normal operating mode of the scale with
no load on the platform. An automatic function test will be performed as well as the zero
setting of the scale. When `0.0´ appears, it means you are in the weighing mode.
Additionally the display shows the symbol ` ´ to confirm stability of the zero setting.
The scale is now ready to be used.
Place the patient on the scale and ensure that he is not moving.
After the weight is being displayed and the symbol ` ´ appears the utmost
accuracy has been achieved.
To turn off the scale press ON/OFF/ZERO for a period of minimum 3 seconds.
4.2 How to change the unit
The scale offers the possibility to select between the weighing mode kg and lb.
To change into another mode, press the UNIT key. Please check weighing mode after
switching on to get proper result.
4.3 Tare function
The tare function allows ignoring a fixed weight (e.g. wheelchair) that will be deducted after
each weighing procedure.
Proceed as follows:
Press the ON/OFF/ZERO with no load on the scale.
Place the additional weight of the object(s), which needs to be ignored, on the scale and
store the result by pressing the TARE/PRESET key.
The display is being reset to zero. The scale is now in NET weighing mode which is also
indicated on the display.
Remove the objects from the platform. The ignored weight is being displayed with a
minus.
Place the Patient and the additional weight (e.g. in the wheelchair) on the scale.
The scale determines the weight of the patient without the additional weight. You may
now use the scale for as many weighing procedures and the stored value will always be
deducted as long as the scale is not turned off.
When there is no any weight on the platform, enter the TARE/PRESET button again to
get of the tare mode.
The tare value is likewise erased by the scale until pressing the TARE/PRESET button

WH-C . 8 .
when no weight on the platform or being switched off.
4.4 Weighing with preset tare values
Press the ON/OFF/ZERO with no load on the scale.
Press and hold the TARE/PRESET key until the NET indicator flashes and “Pr.Tare”
shows in the display.
Input the tare weight using the arrow keys (already known the weight of the wheelchair).
After inputting the tare weight, press the TARE/PRESET key to confirm. The NET
indicator will be lit on the display.
Note: Tare weight must be greater than zero and less than the scale’s maximum capacity.
Put the patient and the additional weight (e.g. in the wheelchair) to be weighed onto the
scale platform. The net weight will be displayed.
To exit preset tare mode, remove all weight from the scale. The display will show a
negative weight. Press the TARE/PRESET key to return the display to zero, eliminating
the weight of the container.
Note: The indicator can only save one tare weight. Entering a new tare weight will
automatically replace the old one.
4.5 HOLD function
The Hold function is being used if you like to hold the results at the display after the
weight/load has been removed from the scale. Use this button to take care of the patient
first and then note the weight.
Press HOLD/SETUP key while scale is under load.
“HOLD” is being displayed at the screen.
The weight remains saved in the display after unloading the scale.
For deactivation of the Hold function press again the HOLD/SETUP key.
4.6 BMI function
The Body Mass Index is the ratio between height and weight squared. The BMI is accepted
world wide –also by WHO (World Health Organization) - helping to evaluate the state of
nutrition and with that value also the state of health of a person. The result is a tolerance
value.
Start the scale by entering the ON/OFF/ZERO Button. The scale is automatically being
set to zero.
Step on the scale or helping the patient to get into the wheelchair and on the platform.
Wait until the weight is being displayed in a stable condition and ´ ’ appears on
the screen.

WH-C . 9 .
Press the BMI key shortly.
The scale starts automatically with the last input. Use the arrow buttons
to enter the height of the patient, and confirm the height with the enter button
The BMI is now being displayed at the indicator.
To correct the given height press the BMI button once again and the display returns to
the height mode.
To get back into normal weighing mode and leave the BMI modus, press the TARE
button.
Evaluation of the Body Mass
Index Compare the determined value which corresponds to those being used by the WHO.
BMI below 18,5
• The patient is under the regular standard and does not got enough weight. An increase of
weight is recommended. Please consult a professional.
BMI between 18,5 and 24,9
• The patient got a normal weight. If he feels well there is no need for a change.
BMI between 25 and 30
• The patient is slightly overweighed to pre-obese. Areduction of weight is indicated or, is
necessary if the state of health is already affected (e.g. diabetes, high end blood
pressure, heart diseases).
BMI over 30
• Reduction of weight is imperative. To visit a doctor is highly recommended.
4.7 Connecting additional devices
Connection of printer, PC or remote-display will be done with serial ports. For connection of
additional devices kindly ask the manufacturer for further instructions.
4.8 Record print out
The scales must be at standstill. The standstill status symbol must appear on the
screen.
Press the PRINT key to send the data to the serial interface.
Note: Printing is not possible if the net weight is 0. The print function only produces one
print-out. A repeated weighing process is required to print out another copy.

WH-C . 10 .
5. TROUBLESHOOTING
Display
Probable causes
Remedy
Ad﹉﹉﹉
Load cell wires to indicator are
incorrectly connected, or
shorted, or opened; orADC, load
cell are damaged
Make sure wires are ok and
correctly connected. Replace
load cell or ADC chip, Service
required.
Ad﹍﹍﹍
0﹉﹉﹉﹉
Weight reading exceeds Power
On Zero limit.
Make sure scale platform is
empty.
Perform zero calibration.
0﹍﹍﹍﹍
Weight reading below Power On
Zero limit.
Install platform on scale.
Perform zero calibration.
﹉﹉﹉﹉
Weight reading exceeds
overload limit, or The weight
value cannot be displayed in the
current unit of measure because
it exceeds 6 digits.
Reduce load on scale until
weight value can be displayed.
Use a more appropriate unit of
measure. Contact your local
dealer or supplier for a new set
up.
﹍﹍﹍﹍
Weight reading below Under load
limit.
Install platform on scale.
Perform zero calibration
EEP.E1
CONFIG or CAL parameters are
not correctly set
Contact your local dealer or
supplier for a new set up
EEP.E2
USER parameter is not correctly
set
Contact your local dealer or
supplier for a new set up
CAP.ER
Capacity parameters are not
correct
Contact your local dealer or
supplier for a new set up
CAL.Er
Calibration error, maybe input
data or loaded weight is too
small, too big, unstable, un-linear
Input correct data, load correct
weight onto platform, Service
required
Not turn on.
Power cord not plugged in or
properly connected. Power outlet
not supplying electricity. Battery
discharged.
Other failure.
Check power cord connections.
Make sure power cord is
plugged into the power outlet.
Check power source. Replace
batteries.
Service required.
Scale can’t set to
zero or will not zero
when turned on
Load on scale exceeds allowable
limits.
Load on scale is not stable.
Load cell damage.
Remove load on scale.
Wait for load to become stable.
Service required.
Empty battery
symbol/ Lo.bAt is
shown
Batteries are discharged.
Charge batteries