M701 Technical Manual Rev M1 Sept 2014

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TM701 Series Handrail Scales Technical Manual

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TM701 Series Handrail Scales Technical Manual

CONTENTS

1. PRECAUTIONS……………………………………………………………..2

2. INTRODUCTION……………………………………………………………3

3. SPECIFICATIONS……………………………………………………….....4

3.1Specifications………………………………………………………………...4

3.2 Load Cell Specification...............................................................…...5

4. INSTALLATION……….…………………………………………………….6

5. DESCRIPTION……….....................................................................8

6. OPERATION………………………………………………………………..10

1. Power ON/OFF…………………………………………………………10

2. Zero……………………………………………………………………...10

3. Tare……………………………………………………………………...10

4. Change unit………………………………………………………………...10

5. Hold function…………………………………………………………....11

6. Print and function……………….…………………………………….11

7. BMI function…………………………………………………………….11

8. Precision*10…………………..……………………………………………11

7. PARAMETER……………………………………………………………….12

8. CALIBRATION……………………………………………………………..14

8.1 Calibration unit selection ……………………………………………….. 14

8.2 Calibration …………………… ………………………………………….. 14

9. PRINT FORMAT..……………………………………………………………..16

10. BATTERY OPERATION…………………………………………………..17

11. MAINTENANCE……………………………………………………………18

10.1 General………………………………………………………………..18

10.2 Error codes……………………………………………………………19

10.3 Determine the Problem……………………………………………...19

10.4 Check the Load Cell…………………………………………………20

10.5 Check PCB Voltages………………………………………………...20

10.6 Trouble Shooting……………………………………………………..21

12. DISPOSAL……………………………………………………………………23

13. WARRANTY……………………………………………………………………24

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TM701 Series Handrail Scales Technical Manual

1. PRECAUTIONS

WARNING

DISCONNECT ALL POWER TO THIS UNIT

BEFORE INSTALLING, CLEANING, OR

SERVICING. FAILURE TO DO SO COULD

RESULT IN BODILY HARM OR DAMAGE THE

UNIT.

CAUTION







Permit only qualified persons to service the instrument

Before connecting or disconnecting any components, remove the

power.

Failure to observe these precautions bodily harm or damage to or

destruction of the equipment.

















Follow the instructions in the instructions for use.

Keep the operating instructions and the declaration of

conformity in a safe place.

Ensure that the scale is standing firmly on a smooth, level

surface.

Do not drop the scale or subject it to violent shocks.

When using the scale with a mains unit, ensure that the

supply cable is routed in such a way as to exclude any type

of tripping hazard.

Use only the type of battery stated.

Have scale serviced and re-calibrated on a regular basis.

Have repairs carried out only by authorized persons.

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TM701 Series Handrail Scales Technical Manual

2. INTRODUCTION

 The TM701 series body scale, that amplifies signals from a load cell,

converts it to digital data and displays it as a mass value.

 BMI with bar graph.

 Wheels at bottom, easy to move.

 Rubber mat on the surface of the platform.

 25 mm LCD with white LED back light display

 7 keypads are light touch switches

 Battery provide up to 22 hours of continues use (without backlight)

 Capacity up to 550lb

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TM701 Series Handrail Scales Technical Manual

3. SPECIFICATION

3.1 Specifications

Model

Maximum Capacity

Readability

Resolution

Tare range

Minimum Capacity

Linearity ±

Interface

Stabilisation Time

Operating Temperature

Power supply (external)

Calibration

Calibration as per Directive

90/384/EEC

Medical product as per

Directive 93/42/EEC

ADC

Display

Housing

Pan Size

Height measuring range

TM701

550lb

0.1lb

1/5,500

-549.9lb

2lb

0.2lb

Common Specifications

RS-232 Output Optional

2 Seconds typical

0°C - 40°C / 32°F - 104°F

12V/500mA AC power adapter or 2000mAh Ni-MH

batteries (optional, size AA)

Automatic External

Class III medical approval

Class I

Σ-Δ

25 mm high 6 digits LCD with auto backlight and

loading bar graph

Aluminium pan and pole, ABS plastic indicator

355x360mm

From approx. 90cm to 200 cm (2'11'' to 6'8'')

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TM701 Series Handrail Scales Technical Manual

3.2 Load Cell Specifications

Model No

Rated Capacity (kg)

Sensitivity

Excitation Voltage

Material

Cable

Input Resistance

Out put Resistance

Temperature Range

Safe overload

Ultimate overload

Error

Creep (20min)

Zero Balance

Max. Platform Size

L6E

2.5/3/5/6/8/10/15/20/30/35/40/50

2.0±0.2 mv/v

5~12V

Aluminum

0.3~3m Φ 4mm

409Ω ±6Ω/1065Ω ±15Ω

350Ω ±3Ω/1000Ω ±10Ω

-35°C ~ +65°C

150%F.S

300%F.S

±0.0233%F.S

±0.020%F.S

0±5%mV/V

250x350mm

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TM701 Series Handrail Scales Technical Manual

4. INSTALLATION

Unpacking

Carefully take the balance out of its package, make it sure its not damaged and

all accessories are included.

 Remove the weighing scale from the carton.

 Remove the protective covering. Store the packaging and to use if you

need to transport the scale later.

 Inspect the scale and terminal for damage.

 Make sure all components are included

Accessories,

1. Balance

2. Adaptor

3. Product manual

Level Adjusting

Place the scale on a table.

Check the water mark. If, bubble is not centre

adjust the leveling feet until reach centre. Check

the level when you change the location.

Charging Battery

 To charge the battery insert the adaptor pin to jack, jack is locating rear side

of the scale. Adaptor simply plug into the mains power. The scale no

needs to be turned on.

 The battery should be charged for 12 hours for full capacity.

 In the display there is an indicator show the status of battery charging.

When the scale is plugged into the mains power the internal battery will be

recharged. If the indicator off, the battery has a full charge. If it is on, the

battery is nearly discharged and if yellow, the battery is being charged.

 Do not use any other type of power adaptor than the one supplied with the

scale.

 Verify that the AC power socket outlet is properly protected.

Note: Please charge the battery before using the scale for the first time

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TM701 Series Handrail Scales Technical Manual

Installation

USB Connecter (selectable)

RS-232 Connecter (selectable)

Adaptor Jack

Calibration switch











Place the scale on a table.

Connect the adaptor pin in to the scale adaptor jack. Adaptor jack is

locating, rear side of the scale.

 Adaptor connects into your AC power socket.

Pluggable equipment must be installed near

an easily accessible socket outlet with a

protective ground/ earth contact.

 Display will show the version number and will

start self checking.

After self checking, display will be come to normal weighing mode.

Warm-up time of 15 minutes stabilizes the measured values after

switching on.

Calibrate with exact calibration weights, minimum 1/3 of the scale capacity

want to use for calibration. For calibration see details in parameter.

Then you can start your operation

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TM701 Series Handrail Scales Technical Manual

5. DESCRIPTION

Key Board

Turns the scale power On / Off

Set to hold mode

Set to BMI mode

Set pre-tare

Change unit: kg / lb

Sets display to Zero

Subtracts weight of container

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TM701 Series Handrail Scales Technical Manual

Display

DISPLAY

STABLE

ZERO

TARE

NET

GROSS

Cm/inch

Lb/kg

FUNCTION

Indicator for Display stability

Indicator for Zero display

Indicator for Tare display

Indicator for weighing capacity graph

Indicator for Net weight

Indicator for Gross weight

Indicator for measuring units

Indicator for weight units

Indicator for Charging status of battery

Voltage has dropped

Low Voltage

Fully Charged

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TM701 Series Handrail Scales Technical Manual

6. OPERATION

Initial Start-up

Warm-up time of 15 minutes stabilizes the measured values after switching on.

6.1

Power ON/OFF

Switch on the scale by pressing

. The display is switched on and the

self test is started.

If you want to switch off press the key again.

6.2

Zero

Environmental conditions can lead to the balance exactly zero in spite

of the pan not taking any strain. However, you can set the display of

your balance to zero any time by pressing

ensure that the weighing starts at zero.

6.3

key and therefore

Tare

You can tare the weight of any container by pressing

key so that

with subsequent weighing the net weight of the object being weighed is

always displayed.



Load weight on the pan.







6.4

Press

key. Zero is displayed, and tare is subtracted.

Remove weight from the platform. Tared weight is displayed. It can

set only one tare value. It can display with a minus value.

Press

key. Zero is displayed, tare weight is cleared.

Change unit

In weighing condition, you can press

to change the unit: kg / lb.

If you want to change the unit of height measurement, please set it in

parameter F5 stu. (page 13)

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TM701 Series Handrail Scales Technical Manual

6.5 Hold function

Press

before load at the pan, so HOLD is active now. "Hold " and "----" appeared at the display.

After put load at the pan no indication until a stable non-zero weights is

detected. During this period "----" is indicated. (no indication of unstable

value).You will hear an acoustic beep, when stable weight (>20d)is detected.

It will show calculated HOLD-value with small "HOLD" in display.

After unloading the pan the value is indicated for 10 Seconds. After that

normal weight displaying is resumed.

Pressing

function.

, while the HOLD-function is active, will cancel the HOLD-

In hold function, you can’t do ZERO and TARE operation.

6.6 Print function

Press

key to print the weight value, you can disable this function (see the

parameter on Section 7)

6.7 BMI function

key on the weighing mode, display will show the last height “xxxxxx”,

Press

use

key to change digit, and press

key to increase the value, press

key confirm it, display will enter into the BMI mode, “BMI” indicator will be

shown, people stand on the platform display will show the BMI value and the BMI

bar, Press

key will turn back to weighing mode.

6.8 Precision*10

If you want to see more accurate weight value, press and hold

for 2

seconds, display will show one more decimal place, the last digit will twink for 5

seconds, then it will go back to normal weighing value automatically.

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TM701 Series Handrail Scales Technical Manual

7. PARAMETERS

Enter the Menu



Press

during self checking(9--0), display will show

F1 off

Choose the Menu



Press

, it can choose menu block or options one by one.

Enter the Selected Menu



Press

, it can confirm which will be shown displayed.

Enter in to TECH

Note: Before enter the tech menu, press calibration switch, which is

locating below the scale



When display showed Pi n , press

function

and

keys to enter the

Escape from the Menu



Press

key, it can escape from the menu to weighing mode.

Parameter Block

Menu

F1 off

F 2

swt

Sub

Menu

Description

off

To set the auto power-off time.

Unit is minutes.

If you select 0,it will not auto power-off.

Disable print function.

prt

Enable print function.

0/ 3/ 5/ 15/ 30

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TM701 Series Handrail Scales Technical Manual

Seire

P prt

P cont

P auto

ask

F3

F4

prt

bk

F5 stu

F6 unit

Also send data continuous

By pressing Print key , weighing value will be

added to the memory and print the print out

Send data continuous

Automatic accumulation.

Individual weighing values are automatically

added

ASK mode

Command R: read data

Command T: Tare

Command Z: Zero

P cnt2

Send data another continuous mode.

P stab

Send data when the weighing values is

stable

Bl on

Bl off

Bl au

cm

Set the backlight always on.

Set the backlight always off.

Set the backlight automatically on.

Select unit cm

inch

Select unit inch

Kg

on/ off

Enable/ disable unit kg

Lb

on/ off

Enable/ disable unit lb

tch

pin

P 1 spd

Set A/D convert speed(7.5/15/30/60)

desc

P 2 Cal

P 3 pro

Enter the password

cap

To set decimal points.

Options: 0,0.0, 0.00, 0.000, 0.0000

To set increment

Options: 1, 2, 5, 10, 20, 50 (kg)

Options: 2, 5, 10, 20, 50, 100 (lb)

Set capacity

cal

Enter into calibration

inc

tri

count

reset

setgra

Deprecated function

To show the scale internal count

Reset the scale

Set the gravity value

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TM701 Series Handrail Scales Technical Manual

8. CALIBRATION

8.1

Calibration unit selection



Turn on the scale. And during its self checking.



Press

key, display will show “cal uni”



Press

key ,display will show the current calibration unit



Press

key to choose the required calibration unit



Press

8.2

confirm. And during its self checking.

Calibration

Calibration Settings in the Parameter;



Turn on the scale



Press

key during self checking, display will show



Press

key until to display

tch



Press

key to confirm display will show

pin



Press



Press





Press

key to enter calibration,

Display will show



Press



Press





When scale get stable, Press

key,

Display will be show last calibration weight,

and

keys, display will show

key to show display

Press

P1 spd

P2 cal

desc

Cal

key until display show

key into calibration, display will show

If it’s required, change calibration weight value by using

keys



F1 off

key to confirm the value

unLoad

00100.0

and

Load

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TM701 Series Handrail Scales Technical Manual





Display will be show

Place the test weight on the platform.









After stable, press

key confirm

Display will be show

Then will start self-test, unload test weight during the self test.

Scale will come to normal display

pass

Note: the unit (kg / lb) is the same as the last displayed one.

That is: before you restart the scale to do calibration, if you see the unit is kg, then

in calibration, the unit is kg; if you want to change to lb, you need to press U key to

change the unit before you restart it.

Note: During the calibration end, when display shows pass and start self test, test

weights should be want to unload before showing normal display for to avoid Err 19.

Normal Calibration



Turn on the scale



During the self-test, press



Keep empty platform





When scale get stable, Press

key,

Display will be show last calibration weight,

unLoad

key

If it’s required, change calibration weight value by using

keys

00100.0

and







Press

key to confirm the value

Display will be show

Place the test weight on the platform.









After stable, press

key confirm

Display will be show

Then will start self-test, unload test weight during the self test.

Scale will come to normal display

Load

pass

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TM701 Series Handrail Scales Technical Manual

9. PRINT FORMAT

PRT

Print format

0

2012/08/09

11：00

60.0 kg

1

2012/08/09

11：00

60.0 kg

170.0cm

20.7BMI

2

60.0 kg

3

60.0 kg

170.0cm

20.7BMI

Note: TPUP can’t print out the date and time.

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TM701 Series Handrail Scales Technical Manual

10. BATTERY OPERATION

The Medical Scales can be operated from the battery if desired. The battery life

is 16 hours (backlight) and 22 hours (without backlight).

When the battery needs charging a symbol on the weight display will turn on. The

battery should be charged when the symbol is on. The scale will still operate for

about several minutes after which it will automatically switch off to protect the

battery.

To charge the battery simply plug into the mains power. The scale does not need

to be turned on.

The battery should be charged for 12 hours for full capacity.

Just under the quantity display is an LED to indicate the status of battery

charging. When the scale is plugged into the mains power the internal battery

will be charged. If the LED is green the battery has a full charge. If it is Red the

battery is nearly discharged and yellow indicates the battery is being charged.

As the battery is used it may fail to hold a full charge. If the battery life becomes

unacceptable then contact your distributor.

Note: useless battery should be recycled, not throw away as household refuse.

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TM701 Series Handrail Scales Technical Manual

11. MAINTENENCE

WARNING

DISCONNECT ALL POWER TO THIS UNIT

BEFORE INSTALLING, CLEANING, OR

SERVICING. FAILURE TO DO SO COULD

RESULT IN BODILY HARM OR DAMAGE THE

UNIT.

CAUTION







Permit only qualified persons to service the instrument

Before connecting or disconnecting any components, remove the

power.

Failure to observe these precautions bodily harm or damage to or

destruction of the equipment.

10.1. General

If the scale does not operate properly, find out the problem as possible.

Determine whether the problem is constant or alternate. Be aware that problems

can be caused by mechanical or electrical influences.

Check the following.

 Water

 Corrosive materials

 Vibrations or temperature or wind

 Physical damage

Check the scale cables for damage, and check all connections and connecters

for any loose contact or incorrect connection

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TM701 Series Handrail Scales Technical Manual

Cleaning

 Disconnect the power before cleaning.

 Use a cloth with mild suds and light cleaning agents.

 Make sure that fluid not able to get into the device.

 Use a clean and soft cloth for rub off.

10.2. Error Codes

Error Code

Err 4

Description

Exceed manual zero range

(pressing

)

Err 6

A/D Count out of the range

Err 19

Exceed Auto Zero range

When switch on the scale

POSSIBLE CAUSES

 Goods on the platform

 Overload, when

zeroing the scale.

 Improper calibration

 Load cell problem

 PCB problem

 Platform not installed

 Load cell problem

 PCB problem

 Goods on the platform

 Improper calibration

 Load cell problem

 PCB problem

10.3. Determine the Problem

Determine whether the problem is in the PCB or the Load Cell



Remove power from the system, and disconnect the load cell connection

from the PCB

 Connect the PCB to a load cell simulator

 Reapply power and test the PCB

 If problem goes away, its source is probably in the Load cell. Check the

wiring, connecter, load cell and mechanical components of the load cell.

If problem persists, its source is probably in the PCB. Check the PCB voltages,

connecters, cables and function programs

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TM701 Series Handrail Scales Technical Manual

10.4. Check the Load cell



Remove power from the system, and disconnect the PCB from the Load

cell

 Check the moisture, or foreign material inside.

 Make sure all leads are connected and correctly.

 Check load cell for proper input and output resistances

Load Cell Connections

Measuring Points

Red (+ Exc) to White ( –Exc)

Green (+Sig) to Black ( –Sig)

Signal +

Supply +

Green

Red

Signal

-

Black

Supply Shield

White

Resistance

420 ±20Ω

350Ω ±5Ω

10.5. Check PCB Voltages

If the problem is in the PCB, use a multimeter to check the following voltages

10.5.1 AC Power

Check the AC power socket out put voltage.

 Voltage must be a -20% and +10% of the normal AC voltage.

10.5.2 Adaptor Voltage

Check the adaptor output cable connecter voltage

 Voltage must be minimum 9VDC and maximum 15VDC

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TM701 Series Handrail Scales Technical Manual

10.5.3 PCB Input Voltage

Check the PCB input power connecter voltage

 Voltage must be minimum 9VDC in to the pin AD+

10.5.4 Check Battery Voltage and Charging Voltage

1. Check the Battery Voltage,

 Voltage must be minimum 6VDC. If below the 6VDC connect the adaptor

for charging

 The battery voltage below the 5.5VDC, replace the battery and install new

6V/3.4Ah battery.

2. Check the Battery Charging Voltage;

 Remove the battery connection terminals (Red and Black) from the battery.

 Connect the power and turn on the scale

 Voltage into the terminal minimum 6.5VDC

10.6 Trouble Shooting

Problems

Display is blank.

No self test

Blank display

after self test

OL or -------

------- or NULL

displayed

Possible cause

Mains power is turned

off. Power supply faulty

or not plugged. Internal

battery is not charged.

On/Off switch problem

Pan not installed.

Unstable weight, load

cell damaged

Common Solutions

Check power is getting inside the

scale and on/off switch is working.

Verify the voltages, which is on the

power labels.

Maximum capacity

exceeded. Load cell or

mechanics damaged.

Power supply faulty

Check the platform is installed

correctly. Try to turn on the scale

again. Do the calibration again

Weight is on the

platform is below

permissible limit. Pan

not installed correctly.

Power supply faulty.

Load cell or

mechanism faulty

Check the platform is installed

correctly. Try to turn on the scale

again.

Do the calibration again

Check the pans are installed

correctly. Try to turning on again.

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TM701 Series Handrail Scales Technical Manual

Display is

unstable

Weight value

incorrect

Goods touching

somewhere. Air

variation or any

vibrations.

Temperature

changed . Load cell or

connections faulty.

Power supply faulty

Calibration error.

Platform of load cell

touching somewhere.

Wrong weighing unit

Can not use full

capacity

Over load protection

stoppers or transport

locks are not removed.

Parameters are set

incorrectly.

AD problem.

Load cell or

mechanism damaged

Platform Corner

Weight different

Over load protection

stoppers or transport

locks are not removed.

Load cell or

mechanism damaged

Mains voltage problem

Charging circuit

problem

Battery Problem

Battery not

charging

Check the scale is in acceptable

location.

Check the connecters and load cell.

Check the power supply and battery

Use accurate weight for to do the

calibration

Check the pan and load cell is

installed proper and touching.

Check the parameter settings.

Check the load cell and connecters

Check the stoppers and locks under

the platform.

Check the weighing unit and

parameter settings.

Check the load cell.

Check the stoppers and locks under

the platform.

Use accurate weight for to do the

calibration

Check the load cell.

Check the mains and adaptor.

Check the battery.

Check the charging circuit

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TM701 Series Handrail Scales Technical Manual

12. DISPOSAL

Disposing of the device

Do not dispose of the device in domestic waste. The device must be disposed of

properly as electronic waste. Follow the national regulations which apply in your

case. For further information, contact our service department at:

service@taiwanscale.com

Batteries

Do not throw used batteries away in domestic waste. Dispose of batteries at

collection points in the vicinity. When buying new batteries, select those low in

harmful substances and containing no mercury (Hg), cadmium (Cd) or lead (Pb).

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