1. Pengenalan
The HTI HT-522 is a versatile 2-in-1 handheld digital tachometer designed for precise measurement of rotational speed (RPM), linear velocity, and frequency. It offers both non-contact (photoelectric) and contact measurement capabilities, making it suitable for a wide range of industrial and automotive applications. This manual provides detailed instructions for the safe and effective use of your HT-522 tachometer.
2. Maklumat Keselamatan
Please read and understand all safety warnings and operating instructions before using this instrument. Failure to do so may result in injury or damage to the device.
- Always wear appropriate personal protective equipment (PPE) when working with machinery.
- Do not attempt to measure rotating parts that are easily accessible or could cause entanglement.
- Jauhkan peranti daripada air, kelembapan dan suhu yang melampau.
- Jangan buka peranti casing; tiada bahagian yang boleh diservis pengguna di dalamnya.
- Ensure the battery is correctly installed and replaced when low to avoid inaccurate readings.
- When using non-contact measurement, avoid pointing the laser beam directly at eyes or reflective surfaces that could redirect the beam into eyes.
3. Kandungan Pakej
Carefully unpack your HT-522 Digital Tachometer and check for the following items:
- HTI HT-522 Digital Tachometer Unit
- Manual Pengguna
- Contact Measurement Adapters (cone, funnel, surface speed wheel)
- Reflective Tape (for non-contact measurements)
- Protective Case (may vary by package)
4. Produk Lebihview
Familiarize yourself with the components and controls of your HT-522 Digital Tachometer:
- Paparan LCD: Shows measurement readings, units, and mode indicators.
- MEAS Button (Red): Press and hold to initiate measurement. Release to stop.
- Butang MOD: Cycles through different measurement modes (e.g., RPM, Counting, Frequency, Linear Velocity).
- Butang MEM: Accesses stored data (Max, Min, Last/Instantaneous values).
- Backlight Button (Sun icon): Toggles the display backlight on/off.
- Photoelectric Sensor / Contact Adapter Port: Used for non-contact measurements (laser) or attaching contact adapters.
5. Spesifikasi
| Ciri | Spesifikasi |
|---|---|
| Nombor Model | HT-522 |
| Paparan | Five LCD Display |
| Ketepatan | 0.02% or ±2 digital |
| Julat Pengukuran Kenalan | 2~20,000RPM |
| Julat Pengukuran Bukan Kenalan | 2~99,999RPM |
| Counting Measuring Range | 1 ~ 99,999 |
| Resolusi | 0.01 or 1 (depending on range) |
| SampMasa Ling | 0.5S (more than 120 RPM) |
| Mengukur Jarak (Bukan Kenalan) | 50 ~ 600 mm |
| Bateri | Bateri 9V |
| Penggunaan Kuasa | Kira-kira 45mA |
| Suhu Bekerja | 0 ~ 50°C (32 ~ 122°F) |
6. Persediaan
6.1 Pemasangan Bateri
- Locate the battery compartment cover on the back of the tachometer.
- Luncurkan atau tanggalkan penutup untuk membuka.
- Masukkan bateri 9V baharu, pastikan kekutuban yang betul (+/-).
- Tutup penutup petak bateri dengan selamat.
6.2 Preparing for Contact Measurement
- Select the appropriate contact adapter (cone for concave surfaces, funnel for convex surfaces, or surface speed wheel for linear velocity).
- Gently push the chosen adapter onto the measurement shaft at the top of the tachometer until it is firmly seated.
6.3 Preparing for Non-Contact Measurement
- Ensure no contact adapter is attached to the measurement shaft.
- Apply a small piece of reflective tape to the rotating object whose speed you wish to measure. Ensure the tape is clean and securely adhered.
- Position the reflective tape so that it passes through the laser beam's path during rotation.
7. Arahan Operasi
7.1 Menghidupkan/Mematikan
The device powers on automatically when the MEAS button is pressed. It will power off automatically after a period of inactivity to conserve battery life.
7.2 Selecting Measurement Mode
Tekan ke MODE button repeatedly to cycle through the available measurement functions:
- Rotational Speed (RPM) - Contact
- Rotational Speed (RPM) - Non-Contact
- Counting (REV)
- Kekerapan (Hz)
- Surface Velocity (m/min, ft/min, in/min) - Contact (requires surface speed wheel)
- Length (m, ft, in) - Contact (requires surface speed wheel)
7.3 Melakukan Pengukuran
- For Non-Contact (Photoelectric) Measurement:
- Ensure the tachometer is in a non-contact RPM mode.
- Point the laser beam at the reflective tape on the rotating object.
- Tekan dan tahan butang MEAS button. The LCD will display the RPM reading.
- Lepaskan MEAS button to stop measuring.
- For Contact Measurement:
- Attach the appropriate contact adapter.
- Ensure the tachometer is in a contact RPM, linear velocity, or counting mode.
- Gently press the contact adapter against the center of the rotating shaft or surface.
- Tekan dan tahan butang MEAS button. The LCD will display the reading.
- Lepaskan MEAS button to stop measuring.
7.4 Data Storage and Recall (MEM Function)
The HT-522 can store 30 sets of data, including 10 maximum, 10 minimum, and 10 instantaneous values.
- Selepas pengukuran, tekan butang MEM button to cycle through the stored MAX, MIN, and LAST (instantaneous) readings.
- The display will indicate which type of data is being shown (e.g., 'MAX', 'MIN').
7.5 Lampu Latar
Press the backlight button (sun icon) to turn the LCD backlight on or off for improved visibility in low-light conditions.
8. Penyelenggaraan
- Pembersihan: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents. Keep the photoelectric sensor lens clean and free of dust.
- Penggantian Bateri: Gantikan bateri 9V apabila penunjuk bateri rendah muncul pada paparan untuk memastikan bacaan yang tepat.
- Storan: When not in use for extended periods, remove the battery and store the tachometer in its protective case in a cool, dry place.
- Contact Adapters: Clean contact adapters after use, especially if they come into contact with grease or dirt.
9. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada paparan atau paparan samar | Bateri rendah atau mati; Pemasangan bateri yang salah | Replace the 9V battery; Check battery polarity |
| Inaccurate readings (non-contact) | Reflective tape not properly applied; Measuring distance too far/close; Sensor lens dirty; Ambient light interference | Reapply tape securely; Adjust measuring distance (50-600mm); Clean sensor lens; Reduce strong ambient light |
| Inaccurate readings (contact) | Contact adapter not firmly attached; Adapter not centered on shaft; Slippage | Ensure adapter is secure; Center adapter carefully; Apply firm, steady pressure |
| Peranti tidak bertindak balas | Battery issue; Device malfunction | Replace battery; If problem persists, contact support |
10. Petua Pengguna
- For non-contact measurements, ensure the reflective tape covers a sufficient area and is free from wrinkles or damage for consistent readings.
- When measuring linear velocity with the wheel adapter, ensure the wheel is perpendicular to the surface and rolls smoothly without slipping.
- Utilize the data storage (MEM) function to record and review maximum, minimum, and instantaneous values, which can be helpful for analyzing performance over time.
- The backlight feature is particularly useful in dimly lit environments, but remember to turn it off when not needed to conserve battery.
11. Waranti dan Sokongan
Untuk maklumat jaminan, sokongan teknikal atau pertanyaan perkhidmatan, sila hubungi tempat pembelian asal anda atau pengilang secara langsung. Simpan resit pembelian anda sebagai bukti pembelian.
