Totalcomp M301, M307 Technical Manual

M301/M307

Personal Scales

Weighing Indicator

REV: C1, November, 2014

(v3.09-3.014A)

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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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.

1. PRECAUTIONS

 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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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'')

3. SPECIFICATION

3.1 Specifications

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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

3.2 Load Cell Specifications

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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