Linshang LS235 Coating Thickness Gauge User Manual

Linshang LS235 Coating Thickness Gauge User Manual

Product Introduction

The coating thickness gauge is professionally used for the measurement of the painting film thickness of car bodies. Generally, car bodies are made of metal materials, such as iron and aluminum, and non-metal materials, such as carbon fiber and plastics. The gauge can measure the painting film thickness on the ferrous and aluminum materials. Moreover, it can identify not only non-metal car bodies, but also the ferrous putty layer as well as the galvanized iron. It also features 3-color backlight display. When the device identifies the ferrous putty, the backlight turns red. In case of the galvanized iron substrate, the backlight turns green. And under other situations, the backlight is white.

Product standards:

• 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.
• 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 Base Metals – Measurement of Coating Thickness – Eddy Current.

Technical parameters

(1.00mm-3.00mm)
Accuracy| ≤±(3%H+2μm), H is the standard value
Unit| μm / mil
Measuring interval| 0.5 s
Minimum measuring area| Ø = 25mm
Minimum radius of curvature| Convex: 5mm / Concave: 25mm
---|---
Minimum substrate thickness| Fe:0.2mm / Al:0.05mm
Display| 128×48 dot matrix LCD
Power supply| 2 x 1.5V AAA alkaline batteries
Range of working temperature| -20℃-50℃
Storage temperature range| -20℃-60℃
Host size| 1016228 mm
Weight (including battery)| 79g

Product Features

1. No need for calibration, only zero adjustment is required.

2. Only one button for extremely simple operation.

3. Quick measurement, only 0.5s for one measurement.

4. The device can identify the ferrous putty as well as the galvanized iron substrate. It also features
   3-color backlight display.

5. The wear resistance of the ruby probe ensures the long-term effective use of the device.

6. The iron and aluminum dual-purpose probe can automatically identify iron, aluminum and non metal substrates. And the device can quickly and automatically switch measurement mode.

7. “Fe”, “Al” and “Fe/Al” 3 measurement modes can be set.

8. It can measure the thickness of not only the non-magnetic coating on the magnetic metal substrate such as steel, but also of non-conductive coating on the non-magnetic metal substrate such as copper and aluminum.

9. Thanks to the advanced digital technology that processes the digital signal directly in the probe, the
   probe is not susceptible to interference and provides excellent measurement accuracy. Even the change of temperature will not affect the accuracy of measurement. Readings remain stable to ensure good repeatability throughout the measurement process.

Operation

1. Power on/off
   Power on: Shortly press the button to turn on the device. After powering on, the device firstly displays firmware
   version and SN, and then enters the interface of the latest record.
   Power off:
   Long press the button to turn off the device. The device will automatically shut down after 3 minutes
   without operation.

2. Device setting
   In the power off status, long press the button for 3s to enter the device setting interface. After that, if there is no operation for more than 20 s, the device will automatically shut down. Shortly press the button to select; and long press the button (3s – 5s) to confirm; and press the button more than 5s is to exit “Setting” and turn off the device, and the settings will be invalid.
   Language settings
   Setting interface
   
   Language selection
   
   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.
   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.
   
   **Unit setting
   Main setting interface

Unit selection interface

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.
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. adjustment
   Zero-adjustment is suggested in the purpose of reducing measurement errors under circumstances as below: the device is used for the first time, the battery is replaced, the measurement material or environment temperature changes. Using iron-base and aluminum – base adjustment respectively to carry out zero adjustment. It is strongly recommended to use the same kind of uncoated or un-plated workpiece surface for zero adjustment because there may be differences in physical properties such as magnetism or conductivity between the tested material and the zero adjustment plate. If there is no uncoated or un-plated workpiece, you can use the attached aluminum or iron standard plate to complete one zero-adjustment. Choose the corresponding plate according to different materials to be measured.

4. When to measure the zero adjustment plate or uncoated or un-plated workpiece (substrate), the device will display a measurement value. (In the measurement, press the probe vertically against the central position of the zero adjustment plate or substrate. Keep the probe stable without tilting or shaking.)

5. Keep the probe still, and long press the button for 3s, the device will prompt: “Zero Reference, Place Probe” (as shown in the figure below).

6. After hearing the buzzer alert, the device will prompt: “Lift probe off at least 15cm” (as shown in the figure below). Then release the button, lift the probe and leave the zero adjustment plate or substrate for more than 15 cm.

7. After hearing the buzzer alert again, the LCD displays “0.0”, indicating that the zero adjustment is complete.

8. After hearing the buzzer alert again, the LCD displays “0.0”, indicating that the zero adjustment is complete.
   Note: Due to the roughness of, and dust, scratches, etc. on the workpiece surface, after zero adjustment, the device may not necessarily display 0μm when measuring the same position again. The operation of the device must be correct and skilled; otherwise it will cause the instability of the measurement value.

9. Measurement

10. Hold the non-slip groove with your fingers.

11. Press the probe against the tested object surface vertically. Keep the probe stable, do not tilt or shake.Measurement value will appear on the display with buzzer alerts.

12. To continue the measurement, you can lift off the probe away from the object to be measured, and then follow step 2) again

13. When the device identifies the ferrous putty, it will turn on the red backlight. The buzzer alerts for two times. And the interface of the device will prompt: “Ferrous putty

14. When the device identifies the galvanized iron, it will turn on the green backlight. The substrate is displayed as “FeZn”

15. View measurement records

In measurement mode, shortly press the button to view historical data. The device can store up to 9 groups of data. If 9 groups are exceeded, it will automatically delete the oldest recorded value. Record No. 1 is the latest measurement value. And in the power off status, recorded values will not lose.

APP Operation

The coating thickness gauge is equipped with built-in Bluetooth communication, which can be connected to the gauge through the mobile app.

Mobile APP installation and use

1. Mobile APP installation: Scan the QR code on the cover with your cell phone’s browser or the syste m’s own scanning function, and follow the instructions to download and install coating thickness gau ge software; iPhones can be installed by searching for ” Coating Thickness Gauge” in the App Store. After installation, the icon of “Coating Thickness Gauge” will appear on the desktop of your cell pho ne as shown in the picture below.

2. Connect the device: Open the APP. If there is no bound Bluetooth device, then enter the Bluetooth setting interface. Click “Start Searching”, prompt “Searching for device… ” and list the available Bluetooth devices that are searched; click the “Stop Searching” button to stop searching for Bluetooth devices. Selecting gauge serial number will bind the selected gauge (prompt: each gauge has a unique serial number). After the connection is successful, it will automatically enter into the main measurement interface and Bluetooth icon will be displayed at the bottom right of the gauge screen. If the APP has a bound Bluetooth device, automatically search and connect the bound Bluetooth device. When the connection is successful, it will automatically enter the “Measure” interface

Attentions

1. The device must be zero adjusted respectively with the iron-base and aluminum-base zero adjustment plates. Otherwise, there may be abnormal identifications of the ferrous putty and galvanized iron substrate.
2. Some car bodies may be misjudged as iron-zinc car bodies due to the base material.
3. It is strictly forbidden to slide the probe on the surface of the car body; otherwise both the car paint and device will be damaged.
4. Please ensure that the paint surface of the car body is clean. Dust, dirt and other foreign objects on the surface will affect the measurement accuracy
5. When the device displays “Low Battery”, batteries should be replaced.

Packaging details

Services

1. The gauge has one-year warranty. If the gauge works abnormally, please send the whole gauge to our company for maintenance.
2. Provide users with spare parts and lifelong maintenance services.
3. Provide the users with the gauge calibration service.
4. Free technical support for long term.

Manufacturer: Shenzhen Linshang Technology Co., Ltd.
Website: www.linshangtech.com
Service Hotline: 0755-86263411
Email: sales21@linshangtech.com

References

• Transmission Meter | UV Light Meter | Coating Thickness Gauge - Linshang
• Transmission Meter | UV Light Meter | Coating Thickness Gauge - Linshang

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