Totalcomp M301 User manual

Weighing Indicator
REV: C1, November, 2014
(v3.09-3.014A)
M301/M307
Personal Scales

M301/M307 Series Personal Scales Technical Manual
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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
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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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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2. INTRODUCTION
The M301/M307 series personal scales, 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 250kg / 550lb
Height measurement: 90cm---200cm or 35inch---80 inch.(M301)

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3. SPECIFICATION
3.1 Specifications
Model
M301/M307
Maximum Capacity
250kg/550lb
Readability
100g
Resolution
1/2,500
Tare range
-249.9kg
Minimum Capacity
200g
Linearity ±
20g
Common Specifications
Interface
RS-232 Output Optional
Stabilisation Time
2 Seconds typical
Operating Temperature
0°C - 40°C / 32°F - 104°F
Power supply (external)
12V/500mA AC power adapter or 2000mAh Ni-MH
batteries (optional, size AA)
Calibration
Automatic External
Calibration as per Directive
90/384/EEC
Class III medical approval
Medical product as per
Directive 93/42/EEC
Class I
ADC
Σ-Δ
Display
25 mm high 6 digits LCD with auto backlight and
loading bar graph
Housing
Aluminium pan and pole, ABS plastic indicator
Pan Size
355x360mm
Height measuring range
From approx. 90cm to 200 cm (2'11'' to 6'8'')

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3.2 Load Cell Specifications
Model No
L6E
Rated Capacity (kg)
2.5/3/5/6/8/10/15/20/30/35/40/50
Sensitivity
2.0±0.2 mv/v
Excitation Voltage
5~12V
Material
Aluminum
Cable
0.3~3m Φ 4mm
Input Resistance
409Ω ±6Ω/1065Ω ±15Ω
Out put Resistance
350Ω ±3Ω/1000Ω ±10Ω
Temperature Range
-35°C ~ +65°C
Safe overload
150%F.S
Ultimate overload
300%F.S
Error
±0.0233%F.S
Creep (20min)
±0.020%F.S
Zero Balance
0±5%mV/V
Max. Platform Size
250x350mm

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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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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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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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Display
DISPLAY
FUNCTION
STABLE
Indicator for Display stability
ZERO
Indicator for Zero display
TARE
Indicator for Tare display
Indicator for weighing capacity graph
NET
Indicator for Net weight
GROSS
Indicator for Gross weight
Cm/inch
Indicator for measuring units
Lb/kg
Indicator for weight units
Indicator for Charging status of battery
Voltage has dropped
Low Voltage
Fully Charged