Jectse AR925 Digital Contact Tachometer User Manual

1. Produk Lebihview

The Jectse AR925 Digital Contact Tachometer is an instrument designed for precise measurement of rotating and linear rolling speeds. It utilizes advanced electro-optical technology to provide accurate readings across a wide range of applications. This device is equipped with a clear LCD display and features automatic storage of maximum, minimum, and last measured values for convenient data analysis.

Image 1.1: Jectse AR925 Digital Contact Tachometer in use, showing the display.

Ciri-ciri Utama:

• Utilizes MCU and electro-optical technology for efficient measurement of rotating and linear rolling speed.
• Wide measuring range of 0.5-19999 RPM with high resolution.
• Large LCD display for clear and easy-to-read measurements.
• Automatically stores the maximum (MAX), minimum (MIN), and last (LAST) measured values.
• Includes convertible accessories for various measurement applications.

2. Kandungan Pakej

Selepas membongkar, sila sahkan bahawa semua item yang disenaraikan di bawah ada dan dalam keadaan baik:

• 1 x Jectse AR925 Digital Contact Tachometer
• 1 x Linear Circular Probe
• 1 x Speed Column Probe
• 1 x Speed Large Cone Probe
• 1 x Speed Small Cone Probe
• 1 x Membawa Beg
• 1 x Manual Pengguna (dokumen ini)

Image 2.1: The tachometer and its various contact probes and carrying bag.

3. Komponen Peranti

Familiarize yourself with the main components and controls of the AR925 Digital Contact Tachometer:

Image 3.1: Labeled diagram of the tachometer's front panel and contact head.

1. Contact Rotate Head: The rotating shaft where different contact probes are attached for measurement.
2. Paparan LCD: Shows measurement readings, units, and stored values.
3. Butang Memori (MEM): Used to access stored MAX, MIN, and LAST values.
4. Measure MAX/MIN Value Button: Toggles between displaying maximum and minimum recorded speeds.
5. Switch/Null Button (ON/NULL): Powers the device on/off and can be used to clear readings or reset.
6. Unit Button (UNIT): Changes the measurement unit (e.g., RPM, m/min, ft/min).

4. Spesifikasi

The following table outlines the technical specifications of the Jectse AR925 Digital Contact Tachometer:

Image 4.1: Visual representation of the tachometer's dimensions and key parameters.

5. Pemasangan Bateri

The AR925 Digital Contact Tachometer requires three (3) AAA batteries (not included) for operation. Follow these steps to install the batteries:

1. Locate the battery compartment cover on the back of the tachometer.
2. Luncurkan penutup petak bateri ke bawah atau ke luar untuk membukanya.
3. Insert three (3) AAA batteries, ensuring correct polarity (+ and -) as indicated inside the compartment.
4. Gantikan penutup petak bateri dengan menggelongsorkannya semula ke tempatnya sehingga ia berbunyi dengan selamat.

Imej 5.1: View of the open battery compartment, showing where to insert AAA batteries.

6. Operasi

This section details how to use your Jectse AR925 Digital Contact Tachometer for various measurements.

6.1 Menghidupkan/Mematikan

• Untuk menghidupkan peranti, tekan butang ON/NULL butang.
• The device will automatically power off after approximately 30 seconds of inactivity to conserve battery life. There is no dedicated 'off' button.

6.2 Attaching Contact Probes

Select the appropriate contact head (Linear Circular, Speed Column, Speed Large Cone, or Speed Small Cone) based on the object to be measured. Gently push and twist the chosen probe onto the Contact Rotate Head until it is securely attached.

Imej 6.1: Selesaiview of the multi-sensor probes included with the tachometer.

6.3 Mengambil Ukuran

1. Ensure the correct contact probe is attached.
2. Tekan ke ON/NULL button to power on the tachometer.
3. Gently press the rotating part of the contact probe against the center of the rotating shaft or surface of the object you wish to measure. Maintain steady contact.
4. The LCD display will show the real-time measurement.
5. To change the measurement unit (RPM, m/min, ft/min), press the UNIT butang.

Image 6.2: Step-by-step illustration of the contact measurement method.

6.4 Viewing Stored Values (MAX/MIN/LAST)

The tachometer automatically stores the maximum, minimum, and last measured values. To view ini:

• Selepas mengambil ukuran, tekan butang MEM butang.
• Setiap akhbar daripada MEM button will cycle through the MAX, MIN, and LAST recorded values.
• The display will indicate which value is currently shown (e.g., "MAX", "MIN", "LAST").

7. Penyelenggaraan

Proper maintenance ensures the longevity and accuracy of your tachometer.

• Pembersihan: Lap peranti dengan kain lembut dan kering. Jangan gunakan pembersih atau pelarut yang melelas.
• Storan: When not in use for extended periods, remove the batteries to prevent leakage. Store the tachometer and its accessories in the provided carrying bag in a cool, dry place, away from direct sunlight and extreme temperatures.
• Penjagaan Probe: Inspect contact probes regularly for wear or damage. Replace if necessary to maintain measurement accuracy. Avoid exposing rubber tips to high temperatures, as they may melt.

8. Penyelesaian masalah

If you encounter issues with your tachometer, refer to the following common problems and solutions:

9. Waranti dan Sokongan

Jectse products are designed for reliability and performance. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Jectse webtapak. Simpan resit pembelian anda sebagai bukti pembelian untuk sebarang tuntutan waranti.