LINSHANG LS220B User manual

Shenzhen Linshang Technology Co., Ltd.

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LS220B

Coating Thickness Gauge

User Manual V2.0

Scan the QR code download and install the App

Please read this manual carefully before using and reserve it for reference.

Shenzhen Linshang Technology Co., Ltd.

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I. Product introduction

The coating thickness gauge is used for measuring the thickness of automobile paint. The gauge transmits

the measurement data to the mobile phone APP in time through Bluetooth. The mobile APP can record

the paint thickness of different parts of the car and the corresponding shell material and can generate test

reports. Test reports can be stored in image format and can be shared via QQ and We Chat.

Standards for the product:

 GB/T 4956-2003 Non-magnetic Coatings on Magnetic Substrates-Measurement of Coating

Thickness-Magnetic Method

 GB/T 4957-2003 Non-conductive Coatings on Non-magnetic Basis Metals-Measurement of Coating

Thickness-Eddy Current

 DIN EN ISO 2808 Paints and Varnishes-Determination of Film Thickness

 JJG-818-2005 Verification Regulation of Magnetic and Eddy Current Measuring Instrument for

Coating Thickness

II. Technical parameters

Probe tip Ruby

Measuring principle Fe: Hall Effect / NFe: Eddy current

Probe type Built-in integrated probe

Measuring range 0.0-2000μm

Resolution

0.1μm:（0μm - 99.9μm）

1μm:(100μm - 999μm)

0.01mm:(1.00mm - 2.00mm)

Accuracy ≤±(3% reading+2μm)

Unit μm / mil

Measuring interval 0.5s

Minimum measuring area Ø = 25mm

Minimum curvature Convex:5mm / Concave:25mm

Minimum substrate thickness Fe:0.2mm / NFe:0.05mm

Display 128×48 dot matrix LCD

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Power supply 2pcs of 1.5V AAA alkaline battery

Operation temperature range -20℃-50℃

Storage temperature range -20℃-60℃

Gauge size 101*62*28 mm

Weight(with battery) 79 g

Data transmission Bluetooth

III. Product advantages

1. No calibration, just zero adjustment.

2. One hand operation, only one button.

3. Fast measurement, 0.5s measuring interval.

4. Wear-proof ruby probe tip for long-term use.

5. The device can identify the ferrous putty as well as the galvanized iron substrate.

6. The gauge automatically identify the substrate and switch measurement mode rapidly.

7. "Fe", "NFe", "Fe/NFe" three measurement modes can be set.

8. Measuring non-magnetic coatings on steel or iron and measure Non-conductive coatings on non-

magnetic metal substrates in one gauge.

9. Thanks to the use of the most-advanced digital probe technology, these sensors are unsusceptible

to interference and provide an excellent measuring accuracy. Even variations in temperature will not

affect measurement and readings remain stable to ensure a very good reproducibility over the

complete measuring range.

10. Built-in Bluetooth function, it can connect to the mobile APP and realize the whole automobile

measurement data recording and generate the test report.

IV. Operation

1. Power on/off

Power on:

Short press the button to turn on the gauge. Version number and serial number will be displayed and the

gauge enter the last recorded historical data interface.

Power off:

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Long press the button to shut down the gauge, or the gauge will automatically shut down in 3 minutes

without any operation. When Bluetooth is connected, the gauge will automatically shut down in 10 minutes

without any operation.

2. Device setting

In the off state, long press the button for 3 s to enter the setting interface. After entering the setting interface,

if there is no operation for more than 20 s, the instrument will automatically shut down. Short press the

button can select the settings; Long press the button for 3 s and less than 5 s to confirm the settings; long

press the button for 5 s, the instrument exits the setting and shuts down and the setting is invalid.

Language settings

The instrument is available in Chinese, English, Russian, Turkish.

Setting method: In the main setting interface, short press power button to select "Language" option, long

press the button for 3 seconds to confirm the selection, short press the button again to select the desired

language, long press the button for 3 seconds to confirm the selection, and return to the main setting

interface.

Setting interface Language selection

Measurement modes selection

There are three measurement modes: Ferrous substrate measurement (Fe), Aluminum substrate

measurement (Al), and Auto identification (Fe/Al). Under normal circumstances, it is enough to use Fe/Al

auto identification mode. This mode features identification of the ferrous putty and galvanized iron

substrate. When the measurement substrate is settled, you can select Fe or Al as the fixed

measurement mode.

Setting method: In the main setting interface, select "mode" option by short pressing power button, and

long press the button for 3 seconds to confirm the selection. Shortly press the button to select the

measurement mode. And long press the button for 3s to confirm the selection and back to the main

setting interface.

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Unit setting

The device can be set to the metric or imperial unit, and the factory default is metric.

Setting method: In the main setting interface, shortly press the button to select “Unit”. Long press the

button for 3s to confirm and then enter the unit selection interface. Shortly press the button to select your

unit and long press the button for 3s to confirm and back to the main setting interface.

Main setting interface Unit selection interface

Exit

In the main setting interface, short press power button to select "Exit", long press the button for 3

seconds to confirm and enter the measurement interface

3. Zero adjustment

A zero-adjustment is required when using the gauge for the first time, after inserting new batteries, working

with different materials or ambient temperature changes. Using iron-base and aluminum - base adjustment

plates respectively to carry out zero adjustment. We strictly recommend carrying out the reference check

on the uncoated original substrate, due to the difference of magnetic and conductive properties of the

material, some measurement deviation will be caused. If this is not possible, please use the zero reference

plates supplied with in the case, there are Fe plate and NFe plate, please choose correctly according to

the measuring materials.

3.1 Measuring the plate or uncoated original substrate, a measured value will be displayed on the gauge,

please make sure the probe tip is placed perpendicularly and evenly on the surface.

3.2 Hold the probe still, long press the button for 3s, the gauge will display “zero reference place probe”

(as shown in below picture).

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3.3 After hearing a buzzer sound, the gauge will display “Lift off probe at least 15 cm” (as shown in below

picture), release the button and lift the probe away from the plate (substrate) for at least 15 cm.

3.4 The zero adjustment completed when there is the buzzer sound again, and the LCD screen displays

0.0.

3.5 After the zero adjustment is completed, place the standard film on the plate (substrate), if the

measurement value is stable and deviation from standard value within ±3μm, the gauge can be used

normally.

Note: After the zero adjustment completed，when repeating measurement on the same spot, the reading

may not always be 0μm, since surface roughness, dirt, scratches etc. might cause variances. The

operation of the gauge should be correct and proficient; otherwise, it will lead to instability of the

measured values.

4. Measurement

1) Use fingers to hold gauge where there is non-slip groove.

2) Press the gauge vertically on the surface of the object to be measured. Keep the gauge steady and

do not tilt or shake it. The result will be shown on the screen, and there will be a buzzer.

3) To continue measuring, lift the gauge away from the object. Repeat the operation of step 2).

4) When the device identifies the ferrous putty, the buzzer alerts for two times. And the interface of the

device will prompt: “Ferrous putty”. When the device identifies the galvanized iron, it will turn on the

green backlight. The substrate is displayed as “FeZn”.

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5. Check measurement records

In measurement mode, short press the button to check historical data. The gauge stores 9 sets of data.

When more than 9 sets of data are stored, the earliest recorded value is automatically deleted and No.1

is the last test data. Recorded data won’t loss after powering off.

V. Bluetooth communication

The coating thickness gauge is equipped with built-in Bluetooth communication, which can be connected

to the gauge through the mobile app.

5.1 Mobile APP Installation Requirements and Methods

The mobile APP supports Android OS 6.0 and above. Use the mobile browser scan the QR code download

and install the Coating Thickness Gauge. apk software.

After the installation is complete, the “漆膜仪(Coating thickness gauge)” icon will appear as shown below.

5.2 How to connect the Bluetooth device

A. Open the APP and display the “Linshang” logo for 3 seconds. If there is no bound Bluetooth device,

then enter the Bluetooth setting interface.

Click "开始搜索(Start Search)", prompt "正在搜索设备…(Searching for device...)" and list the available

Bluetooth devices that are searched; click the "停止搜索(Stop Search)" button to stop searching for

Bluetooth devices and the search indicator icon disappears. Selecting "LS" + gauge serial number will

bind the selected gauge (prompt: each gauge has a unique serial number).

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After the connection is successful, it will automatically enter into the main measurement interface and

display the information read by the gauge and Bluetooth icon will be displayed at the bottom right of

the gauge screen.

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B. If the APP has a bound Bluetooth device, the logo interface will appear for 3 seconds then automatically

search and connect the bound Bluetooth device. When the connection is successful, it will automatically

enter the “测量(Measurement)” interface and display the information read by the gauge.

5.3 Start measuring

Select the corresponding car position in the APP project bar to measure, the measurement data will be

uploaded to the selection bar and the latest measurement will be highlighted.

Shenzhen Linshang Technology Co., Ltd.

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A. Each project bar can preserve the latest 8 sets of measurement data.

B. There are 17 projects totally for different parts of the car. (From top to bottom: car roof, engine

compartment cover, left front fender, left A-pillar, left front door, left B-pillar, left rear door, left C-pillar,

left rear fender, trunk lid, right rear fender, right C-pillar, right rear door, right B-pillar, right front door,

right A-pillar, right front fender).

C. The specific part name of the car that we test will be displayed at the upper left corner of each bar.

D. The “清空 (Empty)” button corresponding to each project bar can clear the measurement data of this

bar.

E. Select the “清空所有数据 (Clear All Data)” button in the upper left corner to clear all measurement data

and automatically return to the first bar to prepare for measurement.

5.4 Report Preview

Click on the "预览报告(Preview Report)" button at the top, the user can input information according to their

needs, or choose not to input any information.

Click "确定(Confirm)" to generate a report preview.

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