1. Introduzione
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. Informazioni sulla sicurezza
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.
- Tenere il dispositivo lontano da acqua, umidità e temperature estreme.
- Non aprire il dispositivo casing; all'interno non ci sono parti riparabili dall'utente.
- 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. Contenuto della confezione
Carefully unpack your HT-522 Digital Tachometer and check for the following items:
- HTI HT-522 Digital Tachometer Unit
- Manuale d'uso
- Contact Measurement Adapters (cone, funnel, surface speed wheel)
- Reflective Tape (for non-contact measurements)
- Custodia protettiva (può variare in base alla confezione)
4. Prodotto finitoview
Familiarize yourself with the components and controls of your HT-522 Digital Tachometer:
- Schermo LCD: Mostra le letture delle misurazioni, le unità e gli indicatori di modalità.
- MEAS Button (Red): Press and hold to initiate measurement. Release to stop.
- Pulsante MODE: Cycles through different measurement modes (e.g., RPM, Counting, Frequency, Linear Velocity).
- Pulsante MEM: Accesses stored data (Max, Min, Last/Instantaneous values).
- Pulsante di retroilluminazione (icona del sole): Attiva/disattiva la retroilluminazione del display.
- Photoelectric Sensor / Contact Adapter Port: Used for non-contact measurements (laser) or attaching contact adapters.
5. Specifiche
| Caratteristica | Specificazione |
|---|---|
| Numero di modello | HT-522 |
| Display | Five LCD Display |
| Precisione | 0.02% or ±2 digital |
| Campo di misura del contatto | 2 ~ 20,000 giri / min |
| Campo di misura senza contatto | 2 ~ 99,999 giri / min |
| Counting Measuring Range | 1 ~ 99,999 |
| Risoluzione | 0.01 or 1 (depending on range) |
| Sampling tempo | 0.5S (more than 120 RPM) |
| Measuring Distance (Non-Contact) | 50 ~ 600 millimetri |
| Batteria | Batteria da 9 V |
| Consumo energetico | Circa 45mA |
| Temperatura di lavoro | 0 ~ 50°C (32 ~ 122°F) |
6. Impostazione
6.1 Installazione della batteria
- Individuare il coperchio del vano batteria sul retro del contagiri.
- Per aprire, far scorrere o sganciare il coperchio.
- Inserire una nuova batteria da 9 V, assicurandosi della corretta polarità (+/-).
- Chiudere saldamente il coperchio del vano batterie.
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. Istruzioni per l'uso
7.1 Accensione/Spegnimento
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 Selezione della modalità di misurazione
Premere il tasto MODALITÀ button repeatedly to cycle through the available measurement functions:
- Rotational Speed (RPM) - Contact
- Rotational Speed (RPM) - Non-Contact
- Counting (REV)
- Frequenza (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 Esecuzione delle misurazioni
- 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.
- Premere e tenere premuto il tasto MISURA button. The LCD will display the RPM reading.
- Rilasciare il MISURA 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.
- Premere e tenere premuto il tasto MISURA button. The LCD will display the reading.
- Rilasciare il MISURA 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.
- Dopo una misurazione, premere il tasto 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 Retroilluminazione
Press the backlight button (sun icon) to turn the LCD backlight on or off for improved visibility in low-light conditions.
8. Manutenzione
- Pulizia: 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.
- Sostituzione della batteria: Per garantire letture accurate, sostituire la batteria da 9 V quando sul display compare l'indicatore di batteria scarica.
- Magazzinaggio: 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. Risoluzione Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Nessun display o display debole | Batteria scarica o scarica; Installazione errata della batteria | 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 |
| Il dispositivo non risponde | Battery issue; Device malfunction | Replace battery; If problem persists, contact support |
10. Suggerimenti per l'utente
- 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. Garanzia e supporto
Per informazioni sulla garanzia, supporto tecnico o richieste di assistenza, contattare il punto vendita presso cui è stato effettuato l'acquisto o direttamente il produttore. Conservare la ricevuta d'acquisto come prova d'acquisto.
