1. Úvod
This manual provides instructions for the proper use and maintenance of the Fowler 54-440-775-1 Digi-Level Pro Digital Protractor. This electronic protractor is designed for fast and accurate angular measurements, featuring embedded magnets on its 12-inch blades for versatile applications. It is suitable for fabricators and machinists requiring precise angle determination.
2. Konec produktuview
The Fowler Digi-Level Pro Digital Protractor is a precision instrument equipped with a digital display for clear angle readings. Its robust design includes two 12-inch blades and embedded magnets for secure positioning during measurements. Key features include:
- Digitální displej: Provides clear and precise angle readings.
- 12-inch Blades: Two blades for measuring various angles.
- Embedded Magnets: Located on both blades for secure attachment to ferrous surfaces.
- Rozsah 360°: Capable of measuring angles across a full circle.
- Přesnost: ± 0.2° for reliable measurements.
- Rezoluce: 0.1° for fine adjustments.
- Opakovatelnost: ± 0.05° ensures consistent results.
- Funkce: On/Off, Zero Set, Hold, and Reverse Display.

Figure 2.1: The Fowler Digi-Level Pro Digital Protractor in its original packaging, showing the device and spare batteries.
3. Nastavení
Before first use, ensure the batteries are correctly installed and the device is ready for operation.
- Instalace baterie: The protractor requires two 3V lithium batteries. Locate the battery compartment, typically on the back or side of the main unit. Insert the batteries according to the polarity indicators.
- Počáteční zapnutí: Stiskněte tlačítko ON/OFF button to power on the device. The digital display should illuminate.
- Nastavení nuly: Close the blades completely so they are parallel. Press the NULA button to set the display to 0.0°. This establishes the reference point for subsequent measurements.
4. Návod k obsluze
Follow these steps for accurate angle measurement using your digital protractor.
- Zapnutí: Stiskněte tlačítko ON/OFF button to turn on the protractor.
- Zero Reference: Ensure the blades are closed and press NULA to establish a 0.0° reference. For relative measurements, you can set zero at any desired angle.
- Measure Angle: Open the blades to match the angle you wish to measure. The angle will be displayed digitally. The embedded magnets can assist in holding the blades in position on magnetic surfaces.
- Funkce Hold: Chcete-li zmrazit aktuální hodnotu na displeji, stiskněte tlačítko DRŽET button. Press it again to release the hold.
- Reverzní displej: If the protractor is inverted or held in an awkward position, the display can be reversed for easier reading. Consult the device for a dedicated reverse display button or function.
- Zámek čepele: Use the blade lock mechanism (if present, typically a screw or lever) to secure the blades at a specific angle for transfer or marking.

Figure 4.1: A hand demonstrating the use of the protractor to measure an angle, showing a reading of 57.8 degrees on the digital display.

Obrázek 4.2: Detailní záběr view of the protractor's digital display, showing an angle measurement of 27.0 degrees.
Video 4.1: An official product video demonstrating the features and basic operation of the Fowler Digi-Level Pro Digital Protractor, including its on/off, hold, zero functions, and the use of its 12-inch blades and embedded magnets.
5. Údržba
Proper care and maintenance will ensure the longevity and accuracy of your digital protractor.
- Čištění: Wipe the protractor with a soft, dry cloth after each use. Avoid using abrasive cleaners or solvents that could damage the display or finish.
- Skladování: Store the protractor in its protective case in a dry, dust-free environment when not in use.
- Výměna baterie: Replace batteries promptly when the display indicates low power or becomes dim. Ensure correct battery type (3V lithium) and polarity.
- Kalibrace: While the device is factory calibrated, periodic checks against known angles are recommended for critical applications.
6. Řešení problémů
Viz následující běžné problémy a jejich řešení:
| Problém | Možná příčina | Řešení |
|---|---|---|
| Displej se nezapne. | Vybité nebo nesprávně vložené baterie. | Replace batteries with new 3V lithium cells, ensuring correct polarity. |
| Nepřesné údaje. | Incorrect zero setting; debris in hinge; damaged blades. | Perform a zero-set calibration. Clean the hinge area. Inspect blades for damage. |
| Display freezes or malfunctions. | Electronic glitch; low battery. | Turn the device off and on again. Replace batteries. |
7. Specifikace
| Funkce | Detail |
|---|---|
| Číslo modelu | 54-440-775-1 |
| Délka čepele | 12 palců |
| Rozsah úhlu | 0-360° |
| Přesnost | ± 0.2° |
| Rezoluce | 0.1° |
| Opakovatelnost | ± 0.05° |
| Zdroj napájení | 2 x 3V Lithium Metal batteries |
| Hmotnost položky | 15.8 unce |
| Rozměry produktu | 14 x 3 x 1 palce |
8. Záruka a podpora
The Fowler 54-440-775-1 Digi-Level Pro Digital Protractor is backed by a full one-year warranty. For warranty claims, technical support, or service inquiries, please contact Fowler High Precision directly or visit their official webmísto.
Pro více informací a podporu navštivte stránku Fowler Store on Amazon.