પરિચય
This manual provides instructions for the safe and effective operation of the Benetech GM8905 Digital Laser Tachometer. This device is designed for non-contact measurement of rotational speed (RPM) using a laser, offering precise readings for various industrial and mechanical applications.
Image description: A front view of the Benetech GM8905 Digital Laser Tachometer, showing its black casing, LCD display with "9999.9 RPM" shown, and orange control buttons for MEM, Power, and Light. A yellow laser warning symbol is visible at the top.
સલામતી માહિતી
Please read all safety warnings and instructions carefully before using this product. Failure to follow these instructions may result in injury or damage to the device.
- લેસર સલામતી: Do not look directly into the laser beam. Laser radiation can cause eye damage. Do not point the laser at people or animals.
- યોગ્ય ઉપયોગ: Use the device only as described in this manual. Any unauthorized modifications or repairs will void the warranty and may pose safety risks.
- પર્યાવરણીય પરિસ્થિતિઓ: Keep the device away from water, high humidity, and extreme temperatures. Do not operate in explosive atmospheres.
- બેટરી હેન્ડલિંગ: સ્થાનિક નિયમો અનુસાર બેટરીનો યોગ્ય રીતે નિકાલ કરો. જૂની અને નવી બેટરીઓ અથવા વિવિધ પ્રકારની બેટરીઓને ભેળવશો નહીં.
ઉત્પાદન ઓવરview
The Benetech GM8905 is a portable, non-contact digital tachometer designed for accurate RPM measurements. It features a large LCD display, memory function, and a precise laser pointer for easy targeting.
Image description: The Benetech GM8905 Tachometer laid out with its instruction manual, two AAA batteries, reflective tape, and product packaging.
ઘટકો
- Laser Emitter: Projects the laser beam onto the target surface.
- Photoelectric Receiver: Detects the reflected laser light to calculate RPM.
- એલસીડી ડિસ્પ્લે: Shows measurement readings, units, and status indicators.
- MEM બટન: Cycles through Maximum, Minimum, Average, and Last measurement values.
- પાવર બટન: ઉપકરણને ચાલુ અથવા બંધ કરે છે.
- લાઇટ બટન: ડિસ્પ્લે બેકલાઇટને સક્રિય અથવા નિષ્ક્રિય કરે છે.
- બેટરી કમ્પાર્ટમેન્ટ: Located at the rear, holds two 1.5V AAA batteries.
સેટઅપ
1. બેટરી ઇન્સ્ટોલેશન
- ઉપકરણની પાછળ બેટરી કમ્પાર્ટમેન્ટ કવર શોધો.
- કવર ખોલીને સ્લાઇડ કરો.
- Insert two 1.5V AAA batteries, ensuring correct polarity (+/-) as indicated inside the compartment.
- બેટરી કમ્પાર્ટમેન્ટ કવર સુરક્ષિત રીતે બંધ કરો.
Image description: The Benetech GM8905 Tachometer inside its packaging, alongside its instruction manual and two AAA batteries, indicating the items included for setup.
2. Applying Reflective Tape
For accurate non-contact measurements, a piece of reflective tape must be applied to the rotating object.
- Cut a small piece of the provided reflective tape (approximately 10-30mm long).
- Attach it to the rotating shaft, disk, or wheel where you intend to measure RPM. Ensure the tape is flat, smooth, and securely adhered to prevent detachment during rotation.
- The reflective tape provides a distinct target for the laser beam, allowing the tachometer to count rotations.
ઓપરેટિંગ સૂચનાઓ
1. પાવર ચાલુ/બંધ
દબાવો શક્તિ બટન () to turn the tachometer on. The LCD display will illuminate. To turn it off, press and hold the શક્તિ button for approximately 2 seconds. The device also features an automatic shutdown function, turning off after 60 seconds of inactivity to conserve battery life.
2. માપ લેવું
- Ensure the reflective tape is properly applied to the rotating object.
- Hold the tachometer firmly and point the laser beam towards the reflective tape on the rotating object. The laser emitter is located at the top front of the device.
- Maintain a measuring distance between 50mm and 500mm (approximately 2 to 20 inches) for optimal accuracy.
- The current RPM reading will be displayed on the LCD screen. Ensure the laser spot consistently hits the reflective tape for stable readings.
Image description: A side view of the Benetech GM8905 Tachometer, highlighting the laser emitter at the front, which projects the beam for RPM measurement.
3. Using Memory Functions (MAX/MIN/AVG/LAST)
During or after a measurement session, press the MEM બટન () repeatedly to cycle through the stored measurement values:
- મહત્તમ: Displays the maximum RPM recorded during the current measurement session.
- MIN: Displays the minimum RPM recorded during the current measurement session.
- સરેરાશ: Displays the average RPM calculated from the measurements taken.
- છેલ્લા: Displays the last measured RPM value before entering memory mode.
4. બેકલાઇટ
દબાવો પ્રકાશ બટન () to turn the LCD backlight on or off. This feature improves visibility of the display in low-light conditions.
જાળવણી
સફાઈ
Wipe the device with a soft, dry cloth. Do not use abrasive cleaners, solvents, or corrosive chemicals, as these can damage the casing or display. Keep the laser emitter and photoelectric receiver lenses clean and free of dust or debris to ensure accurate readings.
બેટરી રિપ્લેસમેન્ટ
When the low battery indicator appears on the display, replace the batteries promptly to ensure continued accurate readings. Refer to the "Battery Installation" section for detailed instructions.
સંગ્રહ
If the device will not be used for an extended period, remove the batteries to prevent leakage and potential damage. Store the tachometer in a cool, dry place, away from direct sunlight, extreme temperatures, and high humidity.
મુશ્કેલીનિવારણ
| સમસ્યા | સંભવિત કારણ | ઉકેલ |
|---|---|---|
| કોઈ ડિસ્પ્લે નથી/ડિવાઇસ ચાલુ થશે નહીં | મૃત અથવા ખોટી રીતે ઇન્સ્ટોલ કરેલી બેટરી | યોગ્ય ધ્રુવીયતા સુનિશ્ચિત કરીને, બેટરી બદલો. |
| અચોક્કસ અથવા અસ્થિર વાંચન |
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|
| ડિસ્પ્લે પર "ભૂલ" સંદેશ | Measurement out of range or no signal detected | Ensure target RPM is within range (2.5-99999 RPM) and laser is properly aimed at the reflective tape. |
| ઉપકરણ અનપેક્ષિત રીતે બંધ થાય છે | Automatic shutdown activated (60 seconds inactivity) or low battery | Turn device back on. Replace batteries if the low battery indicator is present. |
વિશિષ્ટતાઓ
The following table outlines the technical specifications of the Benetech GM8905 Digital Laser Tachometer.
Image description: A detailed table listing the technical specifications of the Benetech GM8905 Tachometer, including LCD display type, unit, range, resolution, precision, laser power, sampling ratio, measurement distance, time base, automatic shutdown, operation environment, storage environment, power supply, dimension, and weight.
| લક્ષણ | સ્પષ્ટીકરણ |
|---|---|
| માપન શ્રેણી | 2.5 ~ 99999 RPM |
| ઠરાવ | 0.1 RPM (2.5 ~ 999.9 RPM), 1 RPM (1000 ~ 99999 RPM) |
| Basic Precision | ±(0.1%n + 5d) RPM (2.5 ~ 999.9 RPM) ±(1%n + 5d) RPM (1000 ~ 99999 RPM) |
| લેસર પાવર | Class II, 2 ~ 5 mW |
| Sampલિંગ ગુણોત્તર | Once/second |
| માપન અંતર | ૭ ~ ૮ મીમી (૦.૨૮ ~ ૦.૩૧ ઇંચ) |
| સમયનો આધાર | ક્વાર્ટઝ ક્રિસ્ટલ |
| આપોઆપ શટડાઉન | નિષ્ક્રિયતાના 60 સેકંડ પછી |
| ઓપરેશન પર્યાવરણ | 0 ~ 50°C (32 ~ 122°F), 10% ~ 90% RH |
| સંગ્રહ પર્યાવરણ | -10 ~ 80°C (14 ~ 176°F), 10% ~ 75% RH |
| પાવર સપ્લાય | 2 x 1.5V AAA બેટરી |
| પરિમાણો | 55.7 x 29.9 x 127 મીમી |
| વજન | 106 ગ્રામ (3.74 ઔંસ) |
| યુપીસી | 732140088524 |
વોરંટી અને આધાર
For warranty information or technical support regarding your Benetech GM8905 Digital Laser Tachometer, please refer to the documentation provided with your purchase or contact the retailer directly. Keep your purchase receipt as proof of purchase for any warranty claims.
