1. Úvod
The Protmex MS6208A is a compact, portable handheld digital tachometer designed for precise contact measurement of rotational and linear speeds. It is equipped with a high-speed integrated chip for stable and reliable performance. This device is ideal for a wide range of applications, including measuring the speed of motors, fans, conveyor belts, and various industrial and automotive equipment.
This manual provides detailed instructions on the proper setup, operation, maintenance, and troubleshooting of your MS6208A tachometer to ensure accurate measurements and extend the product's lifespan.
2. Bezpečnostní informace
Před použitím zařízení si prosím přečtěte a pochopte všechny bezpečnostní pokyny. Nedodržení těchto pokynů může vést ke zranění nebo poškození přístroje.
- Always wear appropriate personal protective equipment (PPE) when taking measurements, especially when working with moving machinery.
- Do not attempt to measure rotating objects that are unstable or could pose a hazard.
- Ensure the device is clean and dry before use. Do not operate in wet or explosive environments.
- Udržujte zařízení mimo dosah silných elektromagnetických polí.
- Přístroj nerozebírejte ani neupravujte. Veškerý servis svěřte kvalifikovanému personálu.
- Pro zajištění přesných údajů vyměňte baterie ihned po zobrazení indikátoru slabé baterie.
3. Obsah balení
Po vybalení ověřte, zda jsou všechny položky přítomny a v dobrém stavu.
- 1 x Protmex MS6208A Digital Tachometer
- 1 x 6-inch Idler Wheel
- 1 x 0.1m Idler Wheel
- 2 x Touch Tips (Protruding and Concave)
- 1x prodlužovací lišta
- 4x 1.5V AAA baterie
- 1 x Uživatelská příručka (tento dokument)
- 1 x Meter Bag
4. Konec produktuview
The MS6208A tachometer is designed for versatility and ease of use, featuring a robust build and intuitive controls.

Figure 4.1: Labeled diagram of the Protmex MS6208A Digital Tachometer, showing the LCD screen, transmission shaft, power button, mode switch, data storage (MEM), data storage read (READ), and plus/minus buttons.
Klíčové vlastnosti:
- Highly Reliable Digital Tachometer: Features a 16-bit high-speed integrated chip for stable and reliable performance. The double-layer ABS casing, produced by secondary injection molding, offers an ergonomic design for easy operation and maintenance.
- Kontaktní měření: Measures rotational speeds from 50 RPM to 19999 RPM and surface speeds. Includes 5 different contact accessories (idler wheels, touch tips) to suit various measurement needs.
- Více funkcí: Offers 5 unit selections (m/min, m/sec, ft/min, ft/sec, in/min). Features include 100 groups of data recording, data hold, and average value functions.
- Podsvícení LCD: Equipped with an LCD backlight display for easy data reading in dark environments.
- Šetření energie: Includes a low battery indicator and automatically powers off after 30 seconds of inactivity to conserve energy.

Figure 4.2: The Protmex MS6208A tachometer shown with different contact attachments, illustrating its capability to measure rotation speeds from 50 RPM to 19999 RPM.
5. Nastavení
5.1 Instalace baterie
- Locate the battery compartment on the back of the tachometer.
- Open the battery cover by sliding it off or unscrewing it, depending on the model.
- Insert four (4) 1.5V AAA batteries, ensuring correct polarity (+ and -).
- Bezpečně uzavřete přihrádku na baterie.

Obrázek 5.1: View of the Protmex MS6208A's battery compartment, showing the placement for four AAA batteries and the internal 16-bit low-power MCU chip.
5.2 Attaching Measurement Accessories
The tachometer comes with various accessories for different measurement scenarios.
- Select the appropriate contact accessory (idler wheel or touch tip) for your measurement task.
- Attach the chosen accessory firmly to the transmission shaft at the top of the tachometer. For extended reach, use the extension bar between the shaft and the accessory.

Figure 5.2: The Protmex MS6208A tachometer demonstrating its adaptability with a 0.1m/6in. idler wheel, protruding touch tip, and concave touch tip, along with an extension bar.
6. Návod k obsluze
6.1 Zapnutí/vypnutí
- Stiskněte tlačítko Moc tlačítko (
) pro zapnutí zařízení. - The device will automatically power off after 30 seconds of inactivity. To manually turn off, press and hold the Moc tlačítko.
6.2 Measurement Modes and Unit Selection
- After powering on, the device defaults to RPM measurement.
- Stiskněte tlačítko MODE button to cycle through different measurement units: RPM, m/min, m/sec, ft/min, ft/sec, in/min.
- Ensure the selected unit matches your measurement requirement.
6.3 Provedení měření
- Attach the appropriate contact accessory to the tachometer.
- Gently press the contact accessory against the center of the rotating object or surface you wish to measure.
- Ensure stable contact. The LCD will display the real-time measurement.
- For surface speed measurements, use an idler wheel and press it against the moving surface.
6.4 Data Hold, MAX/MIN/AVG Functions
- Stiskněte tlačítko OPATŘENÍ tlačítko pro podržení aktuální hodnoty na displeji. Dalším stisknutím tlačítko uvolníte.
- Stiskněte tlačítko MIN / MAX button to cycle through Maximum, Minimum, and Average readings during a measurement session.
6.5 Data Storage (MEM) and Recall (READ)
The device can store up to 100 groups of data.

Figure 6.1: The Protmex MS6208A tachometer in use, demonstrating its ability to store up to 100 sets of measurement data.
- To store a reading, press the MEM button while a measurement is displayed. The display will show the storage location number.
- Chcete-li vyvolat uložená data, stiskněte tlačítko ČÍST tlačítko. Použijte plus (+) a Mínus (-) buttons to navigate through the stored data groups.
6.6 Podsvícení
- Stiskněte tlačítko Podsvícení tlačítko (
) to turn the LCD backlight on or off for improved visibility in low-light conditions.

Obrázek 6.2: Detail view of the Protmex MS6208A's backlit LCD display, showing clear readability of contact RPM measurements.
7. Údržba
7.1 Čištění
- Přístroj otřete měkkým, suchým hadříkem. Na odolné nečistoty použijte lehceamp cloth with mild detergent, then dry thoroughly.
- Nepoužívejte abrazivní čisticí prostředky ani rozpouštědla, protože by mohly poškodit casing nebo displej.
- Keep the transmission shaft and contact accessories free from dust and debris to ensure smooth operation and accurate readings.
7.2 Skladování
- When not in use for an extended period, remove the batteries to prevent leakage and damage to the device.
- Store the tachometer and its accessories in the provided meter bag in a cool, dry place, away from direct sunlight and extreme temperatures.
7.3 Výměna baterie
- When the low battery indicator appears on the display, replace all four AAA batteries promptly.
- Postupujte podle kroků pro instalaci baterie uvedených v části 5.1.
8. Řešení problémů
If you encounter issues with your Protmex MS6208A, refer to the following common problems and solutions:
| Problém | Možná příčina | Řešení |
|---|---|---|
| Zařízení se nezapne. | Vybité nebo nesprávně vložené baterie. | Zkontrolujte polaritu baterií. Vyměňte za nové baterie AAA. |
| Nepřesné údaje. | Poor contact with the rotating object; incorrect accessory used; low battery. | Ensure firm and stable contact. Use the correct accessory for the surface. Replace batteries. |
| Displej je tlumený nebo bliká. | Slabá baterie. | Vyměňte za nové baterie AAA. |
| Cannot store data. | Paměť je plná; nesprávná operace. | Ensure you are pressing MEM during a live measurement. If memory is full, consider clearing data (refer to advanced functions in full manual if available). |
| Auto-off too quickly. | Normal operation (30 seconds inactivity). | This is a power-saving feature. Press any button to keep the device active. |
9. Specifikace
| Parametr | Hodnota |
|---|---|
| Model | MS6208A (PT6208A Contact Tachometer) |
| Typ měření | Kontakt |
| Rozsah měření otáček | 50 ~ 19999 RPM |
| Přesnost | ± (0.03 % + 2 číslic) |
| Měření vzdálenosti | N/A (Contact Measurement) |
| Výběr jednotky | m/min, m/sec, ft/min, ft/sec, in/min |
| Záznam dat | 100 skupiny |
| Funkce | MAX/MIN/AVG, Data Hold, Display Backlight, Low Battery Indication |
| Automatické vypnutí | 30 sekund nečinnosti |
| Napájení | 4x 1.5V AAA baterie |
| Rozměry produktu (D x Š x V) | 19.3 x 6 x 2.9 cm (7.6 x 2.4 x 1.1 palce) |
| Hmotnost produktu | 120 g (0.26 lb) |
| Materiál | ABS plast |
| Certifikace | CE (LVE, EMC, RoHS) |
10. Záruka a podpora
Protmex is committed to providing quality products and customer satisfaction. This product is CE (LVE, EMC, RoHS) certified.
For any questions, technical assistance, or support needs, please contact Protmex customer service. We provide friendly 24/7 online support to assist you with any inquiries regarding your MS6208A Digital Tachometer.
Please refer to your purchase documentation or the official Protmex webkonkrétní záruční podmínky a kontaktní informace naleznete na webových stránkách.