UNI-T UT372 Digital Laser Tachometer Instruction Manual

1. Pwodwi souview

The UNI-T UT372 is a non-contact digital laser tachometer designed for measuring the rotational speed (RPM) and count of objects. It utilizes a laser pointer and reflective tape to provide accurate and stable measurements without physical contact. This device is suitable for various industrial and scientific applications.

Karakteristik kle:

• 5-digit LCD screen with RPM/count and time dual display.
• Measurement modes: MAX (Maximum), MIN (Minimum), AVG (Average), and Normal.
• Reglabl sampling rate (0.5-255 seconds).
• Automatic power-off function (cancelable).
• Selectable laser pointer (on/off).
• Clock and time setting capabilities.
• Fonksyon kenbe done.
• Low power consumption, allowing for approximately 40 hours of continuous operation.
• Equipped with a USB interface for data transfer (UT372 only).
• Certified with CE and UKCA standards.

Image 1.1: The UNI-T UT372 tachometer displaying its main features and specifications.

2. Enfòmasyon sou Sekirite

Tanpri li epi konprann tout enstriksyon sekirite yo anvan ou itilize aparèy la. Si ou pa swiv enstriksyon sa yo, ou ka blese oswa domaje aparèy la.

• Do not look directly into the laser beam. The laser is a Class 2 laser product.
• Do not attempt to modify or disassemble the device. Repairs should only be performed by qualified personnel.
• Asire w ke konpatiman batri a byen fèmen anvan w itilize li.
• Retire pil yo si ou pa pral itilize aparèy la pou yon peryòd tan pwolonje pou anpeche flit.
• Kenbe aparèy la lwen dlo, pousyè, ak tanperati ekstrèm.

3. Pake kontni

Carefully unpack the box and check if all items are present and undamaged. If any item is missing or damaged, contact your supplier.

• UNI-T UT372 Digital Laser Tachometer
• Tep meditativ
• USB Interface Cable (for UT372 only)
• PC Software CD (for UT372 only)
• Manyèl itilizatè angle
• Batteries (1.5V LR6 x 4)

Image 3.1: The UNI-T UT372 tachometer and its standard accessories as packaged.

4. Product Layout and Panel Introduction

Familiarize yourself with the components and controls of your UT372 tachometer.

Imaj 4.1: Devan ak bò view of the UT372 tachometer with labeled components.

• Sous Limyè Takomèt: Emèt reyon lazè a pou mezire.
• Ekspozisyon LCD: Shows measurement readings, modes, and other indicators.
• HOLD / ON/OFF Button: Press to power on/off the device. Short press to activate/deactivate data hold.
• Bouton MENI: Accesses the menu for settings adjustments.
• R/C (RPM / Counts) Button: Toggles between RPM and Count measurement modes.
• Bouton TUNE: Used for adjusting settings within the menu.
• M/M/A (MAX/MIN/AVG) Button: Cycles through Maximum, Minimum, and Average measurement modes.
• Pò USB (UT372 sèlman): Pou konekte ak yon òdinatè pou transfè done.

5. Enstalasyon ak Batri

5.1 Enstalasyon batri

1. Jwenn kouvèti konpatiman batri a sou dèyè aparèy la.
2. Louvri kouvèti a lè w glise l oswa devise l.
3. Insert four 1.5V LR6 (AA) batteries, ensuring correct polarity (+/-).
4. Fèmen kouvèti lòj batri a byen.

5.2 Aplike tep reflechisan

For accurate non-contact measurement, apply a piece of reflective tape to the rotating object whose speed or count you wish to measure. Ensure the tape is clean and securely attached.

6. Operasyon Enstriksyon

6.1 Power On/Off

Peze a HOLD / ON/OFF button to turn the tachometer on or off.

Mezi 6.2 RPM

1. Ensure the device is in RPM measurement mode (indicated on the LCD). If not, press the R/C bouton pou chanje.
2. Point the laser beam at the reflective tape on the rotating object.
3. Maintain a measurement distance between 50mm and 200mm (2 to 8 inches) from the target.
4. The RPM reading will be displayed on the LCD.
5. Nòt: If no signal is detected within 7 seconds, the LCD will display "0.0000". If the RPM exceeds 99999, the LCD will display "OL" (Overload).

Image 6.1: Illustrates the correct distance and method for RPM measurement.

6.3 Counts Measurement

1. Peze a R/C button to switch to Count measurement mode.
2. Point the laser beam at the reflective tape on the object.
3. The device will count the number of times the laser beam reflects off the tape.

6.4 Mode Selection (MAX/MIN/AVG)

Peze a M/M/A button repeatedly to cycle through the following display modes:

• MAX: Displays the maximum measured value.
• MIN: Displays the minimum measured value.
• AVG: Displays the average measured value.
• Nòmal: Displays the current real-time measurement.

6.5 Done kenbe

During measurement, a short press of the HOLD / ON/OFF button will freeze the current reading on the display. Press it again to release the data hold and resume live measurement.

6.6 SampAjisteman To Ling

S laampling rate can be adjusted from 0.5 to 255 seconds. Refer to the detailed user manual for specific steps on how to access and change this setting via the MENI epi TUNE bouton.

6.7 USB Interface (UT372 Only)

The UT372 model features a USB port for connecting to a computer. Use the provided USB cable and PC software CD to transfer measurement data for analysis and logging. Follow the instructions provided with the software for installation and operation.

7. Antretyen

• Netwayaj: Sèvi ak yon twal mou epi sèk pou netwaye aparèy la. Pa sèvi ak pwodui netwayaj abrazif oswa solvan.
• Depo: Store the tachometer in a cool, dry place away from direct sunlight and extreme temperatures. Remove batteries if storing for extended periods.
• Reflective Tape: Ensure the reflective tape is clean and free from damage for accurate readings. Replace as needed.

NAN. Depanaj

• Aparèy la pa limen: Tcheke enstalasyon pil yo epi asire w pil yo pa fin itilize. Ranplase yo si sa nesesè.
• "0.0000" displayed during RPM measurement: Ensure the laser is correctly aimed at the reflective tape and the measurement distance is within 50-200mm. Check if the reflective tape is properly applied and clean.
• "OL" displayed: The measured RPM exceeds the device's maximum range (99999 RPM).
• Lekti ki pa egzak: Verify the reflective tape is securely attached and clean. Ensure the target object is stable during measurement. Check for any obstructions in the laser path.
• Endikatè batri ki ba: Replace batteries promptly when the low battery icon appears on the display.

9. Espesifikasyon

Image 9.1: Detailed specifications for the UT370 series tachometers.

10. Garanti ak sipò

UNI-T products are designed and manufactured to high quality standards. For warranty information, technical support, or service, please refer to the warranty card included with your product or contact your local UNI-T distributor or customer service center. Please have your product model number (UT372) and purchase date available when contacting support.