1. Introducció
The TASI TA500 series digital tachometers are precision instruments designed for measuring rotational speed (RPM) and linear speed (m/min, ft/min) in various applications. This series includes models TA500A (non-contact), TA500B (contact), and TA500C (2-in-1 contact and non-contact), offering versatility for different measurement needs. This manual provides detailed instructions for the safe and effective use of your tachometer.
2. Informació de seguretat
- Read this manual thoroughly before operation.
- No intenteu modificar o desmuntar el dispositiu.
- Mantingueu el dispositiu allunyat de l'aigua i la humitat elevada.
- Avoid direct eye exposure to the laser beam (TA500A/TA500C).
- Ensure proper battery installation and disposal.
- No utilitzeu el dispositiu en ambients explosius.
- Always use appropriate personal protective equipment when working with machinery.
3. Contingut del paquet
Please check the contents of your package upon receipt. The specific accessories may vary slightly depending on the model (TA500A, TA500B, or TA500C) purchased.

TA500A Standard Accessories:
1. Caixa
2. Mesurador
3 Manual
4. Reflective tape x 2

TA500B/C Standard Accessories:
1. Caixa
2. Mesurador
3 Manual
4. Reflective tape x 2 (only TA500C)
5. Measuring accessories (for contact measurement)
4. Producte acabatview
4.1 Instrucció del panell
Familiarize yourself with the buttons and display of your tachometer:

Panel Layout (TA500C shown):
- Pantalla LCD: Displays measurement readings and indicators.
- Il·luminació de fons: Illuminates the screen for low-light conditions.
- UNIT Switch: Selects measurement units (RPM, m/min, ft/min). (Not available on TA500A)
- PROVA: Activates measurement.
- MAX / MIN: Alterna entre els valors màxims i mínims enregistrats.
- Botó d'encesa: Encén/apaga el dispositiu.
- MANTENIR: Congela la lectura actual a la pantalla.
Dimensions: 146mm / 5.7in (Height), 59mm / 2.3in (Width)
4.2 Multiple Functions
The TASI TA500 series tachometers offer a range of features for comprehensive measurement:

Functions include Laser measurement (non-contact), Data hold, Max value recording, Min value recording, Unit switch, Battery level indicator, Backlight, and Auto power off.
5. Configuració
5.1 Instal·lació de la bateria
The tachometer is powered by 2 x 1.5V AAA (R03/LR03) batteries. To install or replace batteries:
- Localitzeu el compartiment de la bateria a la part posterior del dispositiu.
- Obriu la tapa de la bateria.
- Introduïu dues piles AAA, assegurant-vos de la polaritat correcta (+/-).
- Tanqueu la tapa de la bateria amb seguretat.

Ensure batteries are inserted with correct polarity. Batteries are not included in the package.
5.2 Applying Reflective Tape (for Non-Contact Measurement)
For non-contact measurements (TA500A and TA500C), apply a piece of reflective tape to the rotating object. Ensure the tape is clean and securely attached to provide a clear target for the laser sensor.
6. Instruccions de funcionament
6.1 Encès/Apagat
Premeu el botó vermell d'engegada (1.) per encendre o apagar el dispositiu.
6.2 Infrared Non-Contact Measurement (TA500A, TA500C)
This method uses a laser to measure RPM without physical contact.
- Ensure reflective tape is applied to the rotating object.
- Press the "TEST" button to activate the infrared beam.
- Aim the laser point perpendicular to the rotating reflective strip.
- Keep the distance between the tachometer and the object within 50mm to 500mm.
- The RPM reading will be displayed on the screen.

Performing non-contact measurement using the laser sensor.
6.3 Contact Measurement (TA500B, TA500C)
This method uses physical contact with the rotating object via measuring accessories.
- Attach the appropriate measuring accessory (e.g., cone, funnel, or wheel) to the tachometer's shaft.
- Press the "UNIT" key to select the desired mode (e.g., RPM, ft/min, m/min). The corresponding symbol will flash on the display.
- Press the "TEST" button.
- Gently press the measuring accessory against the center of the rotating object.
- The measurement will begin, and the reading will be displayed.

Performing contact measurement with the TA500C using an attachment.
6.4 Retenció de dades
During measurement, press the "HOLD" button to freeze the current reading on the display. Press "HOLD" again to resume live measurement.

The display shows 'HOLD' when the data hold function is active.
6.5 Max/Min Measurement
Press the "MAX" button to display the maximum recorded value during the current measurement session. Press "MAX" again to display the minimum recorded value. Subsequent presses will cycle through Max, Min, and current readings.
6.6 Unit Switch (TA500B, TA500C)
For models TA500B and TA500C, press the "UNIT" button to cycle through available measurement units: RPM, m/min, and ft/min.
6.7 Llum de fons
The screen features a white background light for improved visibility. Press the backlight button (often integrated with another function or a dedicated button, refer to your specific model's panel) to turn it on or off.
6.8 Apagat automàtic
The device will automatically power off after 15 minutes of inactivity to conserve battery life. This feature can typically be disabled by holding a specific button during power-on (refer to your model's specific instructions for details).
7. Manteniment
- Neteja: Netegeu el dispositiu amb un drap sec i suau. No utilitzeu productes de neteja abrasius ni dissolvents.
- Substitució de la bateria: Replace batteries when the low battery indicator appears on the display. Always use new batteries of the specified type.
- Emmagatzematge: If storing the device for an extended period, remove the batteries to prevent leakage. Store in a cool, dry place, away from direct sunlight.
- Cinta reflectant: Ensure reflective tape is clean and free from damage for accurate non-contact measurements. Replace if necessary.
- Contact Accessories: Keep contact measuring accessories clean and free from debris.
8. Solució De Problemes
- El dispositiu no s'encén: Comproveu la instal·lació de les piles i assegureu-vos que no estiguin esgotades. Substituïu-les si cal.
- Inaccurate readings (non-contact): Ensure reflective tape is clean, securely attached, and the laser is aimed correctly. Verify the measurement distance is within the effective range (50mm-500mm).
- Inaccurate readings (contact): Ensure the contact accessory is firmly pressed against the rotating object and the correct unit is selected.
- La pantalla és tènue o parpelleja: Substituïu les piles.
- No reading displayed: Ensure the "TEST" button is pressed and held during measurement. Check for obstructions to the laser sensor (non-contact) or proper contact (contact).
9. Especificacions
Detailed technical parameters for the TASI TA500 series tachometers:

| Paràmetre | TA500A | TA500B | TA500C |
|---|---|---|---|
| Tipus de mesura | Tipus sense contacte | Tipus de contacte | Non-contact type / Contact type |
| Interval | 3-100000 RPM | 0-19999 RPM 0-19999 m/min 0-9999.9 peus/min | Non-contact type: 3-100000RPM Contact type: 3-19999RPM 0-19999 m/min 0-9999.9 peus/min |
| Precisió | ±(0.05%FS+1RPM) | ±(0.05%FS+0.2M) ±(0.1%FS+0.2m/min) ±(0.1%FS+0.6ft/min) | Non-contact type: ±(0.05%FS+1RPM) Contact type: ±(0.1%FS+1RPM) |
| Resolució | RPM: <10000: 0.1 RPM: ≥10000: 1 | RPM: <10000: 0.1 RPM: ≥10000: 1 m: <10000: 0.1 m: ≥10000: 1 ft/min: <10000: 0.1 | RPM: <10000: 0.1 RPM: ≥10000: 1 m: <10000: 0.1 m: ≥10000: 1 ft/min: <10000: 0.1 |
| Mostra | 6 digits, max 99999 | ||
| Effective measuring distance | 50 mm ~ 500 mm | ||
| Samptemps de ling | 0.8s (above 60rpm) | ||
| Apagat automàtic | 15mins (can be disabled) | ||
| Entorn de treball | -10 ~ 50°C, Max 80%RH, indoor altitude < 2000M | ||
| Entorn d'emmagatzematge | -10 ~ 50 °C, màx. 70% HR (bateria treta) | ||
| Mida del producte | 130x59x29 mm | 146x59x29 mm | |
| Mida de la pantalla | 34x31mm | ||
| Pes | Aprox. 110 g | Aprox. 117 g | Aprox. 120 g |
| Poder | 2 x 1.5V AAA (R03/LR03) batteries | ||
10. Consells d'usuari
- For non-contact measurements, ensure the reflective tape is applied smoothly and covers a sufficient area on the rotating surface for consistent readings.
- When using contact measurement, apply gentle, consistent pressure to avoid slowing down the rotating object or causing slippage, which can affect accuracy.
- Always check the battery level before critical measurements to avoid interruptions.
- The auto power-off feature is useful for battery saving, but remember to disable it if you need continuous monitoring for longer periods.
11. Garantia i Suport
TASI products are designed for reliability and performance. This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. For warranty claims, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official TASI weblloc.





