1. Pengenalan
The Benetech GT235 Film/Coating Thickness Gauge is designed for quick and effective measurement of coating thickness. It accurately measures non-metallic coatings on non-magnetic metal substrates and non-magnetic coatings on magnetic metal substrates. The device automatically identifies the substrate type (magnetic or non-magnetic). This instrument is suitable for applications in automobile manufacturing, metal processing, chemical industry, and commodity inspection.
This manual provides detailed instructions for the proper use, setup, operation, and maintenance of your GT235 thickness gauge. Please read it thoroughly before operating the device.
2. Produk Lebihview
The GT235 thickness gauge offers a range of features to ensure precise and versatile measurements.
Ciri-ciri Utama:
- Measures non-magnetic coating thickness on magnetic metal substrates.
- Measures non-metallic coating thickness on non-magnetic metal substrates.
- Automatic identification of magnetic (Fe) and non-magnetic (NFe) metal substrates.
- Supports single measurement, continuous measurement and differential measurement modes.
- Offers Zero-point calibration, Offset Calibration, and basic calibration options.
- Switchable metric (µm, mm) and imperial (mil) units of measurement.
- Automatic shutdown feature to conserve battery life.
Komponen Peranti:
Rajah 2.1: Depan view of the GT235 gauge. The display shows measurement readings and indicators. Buttons for UNIT, MODE, and CAL are visible below the display.
Rajah 2.2: belakang view of the GT235 gauge, illustrating the battery compartment.
Rajah 2.3: Package contents, including the GT235 device, instruction manual, calibration foils, and AAA batteries.
3. Persediaan
3.1 Pemasangan Bateri
- Cari petak bateri di belakang peranti (rujuk Rajah 2.2).
- Geser buka penutup petak bateri.
- Masukkan dua bateri AAA 1.5V, pastikan kekutuban (+/-) betul.
- Tutup penutup petak bateri dengan selamat.
3.2 Menghidupkan/Mematikan
- To power on, press any button. The device will perform a self-test and display the last measurement mode.
- The device features an automatic shutdown function to save power. It will power off after a period of inactivity.
4. Arahan Operasi
4.1 Pengukuran Asas
- Pastikan peranti dihidupkan.
- Place the probe perpendicularly and firmly onto the surface of the coated material.
- The measurement reading will be displayed on the screen. The device will automatically identify the substrate type (Fe for magnetic, NFe for non-magnetic).
- Angkat kuar dari permukaan untuk bersedia untuk pengukuran seterusnya.
4.2 Mod Pengukuran
Tekan ke MODE butang untuk mengitar melalui mod pengukuran yang berbeza:
- Single Measurement (SNG): Displays one measurement at a time.
- Continuous Measurement (CONT): Continuously takes and displays measurements as the probe is moved across the surface.
- Differential Measurement (DIF): Measures the difference between the current reading and a set reference value.
4.3 Pemilihan Unit
Tekan ke UNIT button to switch between metric (µm, mm) and imperial (mil) units. The selected unit will be displayed on the screen.
4.4 Penentukuran
Calibration ensures measurement accuracy. It is recommended to calibrate the device when using it in different environments or if significant temperature differences occur.
- Zero-point Calibration:
- Place the probe directly on a bare, uncoated metal substrate (magnetic or non-magnetic, depending on the measurement type).
- Tekan dan tahan butang CAL button until "0.0" or "CAL" appears, indicating zero calibration is complete.
- Penentukuran Offset:
- Perform zero-point calibration first.
- Place a calibration foil of known thickness on the bare substrate.
- Place the probe on the calibration foil.
- Adjust the displayed value to match the known thickness of the foil using the UNIT/MODE buttons (if applicable, specific steps may vary by firmware).
- Sahkan penentukuran.
- Basic Calibration:
- This typically involves calibrating with multiple known thickness foils across the measurement range. Refer to the specific calibration kit instructions for detailed steps.
5. Penyelenggaraan
5.1 Pembersihan
- Lap badan peranti dengan kain lembut dan kering.
- Jangan gunakan pembersih atau pelarut yang melelas, kerana ia boleh merosakkan casing atau paparan.
- Keep the probe tip clean and free from debris to ensure accurate measurements.
5.2 Penyimpanan
- Apabila tidak digunakan untuk tempoh yang lama, tanggalkan bateri untuk mengelakkan kebocoran.
- Store the device in its protective case in a cool, dry place, away from direct sunlight and extreme temperatures.
5.3 Penggantian Bateri
- When the low battery indicator appears on the display, replace both AAA batteries promptly.
- Ikuti langkah pemasangan bateri yang digariskan dalam Bahagian 3.1.
6. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Peranti tidak dihidupkan. | Bateri mati atau tidak dipasang dengan betul. | Periksa kekutuban bateri; menggantikan bateri. |
| Bacaan yang tidak tepat. |
|
|
| Paparan menunjukkan ralat "Err" atau ralat yang serupa. | Measurement out of range or sensor issue. | Ensure measurement is within specified range; restart device. If persistent, contact support. |
| Device does not detect substrate type. | Substrate material is not standard magnetic/non-magnetic metal, or coating is too thick. | Verify substrate material; ensure coating thickness is within range. |
7. Spesifikasi
| Parameter | Nilai |
|---|---|
| Julat Pengukuran | 0 ~ 1800µm / 70.8mil / 1.8mm |
| Resolusi | 0.1µm (<100µm), 1µm (≥100µm) / 0.1mil / 0.001mm |
| Ralat Mengukur | ≤150µm: ±5µm; >150µm: ±(3%H + 1µm) |
| Minimum Diameter of Magnetic Substrate | 12mm |
| Minimum Thickness of Magnetic Substrate | 0.5mm |
| Minimum Curvature Radius of Convex Magnetic Substrate | 2mm |
| Minimum Curvature Radius of Concave Magnetic Substrate | 11mm |
| Minimum Diameter of Non-magnetic Substrate | 50mm |
| Minimum Thickness of Non-magnetic Substrate | 0.5mm |
| Julat Suhu Operasi | -20~40 ℃ |
| Kelembapan Operasi | 10~95%RH |
| Bekalan Kuasa | 2 x 1.5V bateri AAA |
| Dimensi Keseluruhan | 62 x 27 x 121.5mm |
| Berat badan | 105.03g (tanpa bateri) |
8. Waranti dan Sokongan
Untuk maklumat waranti, sokongan teknikal atau pertanyaan perkhidmatan, sila hubungi terus peruncit atau pengilang. Simpan resit pembelian anda sebagai bukti pembelian.