ONO SOKKI TACHO Meter HT-3200 User Manual

1. Introduction

Thank you for purchasing the ONO SOKKI TACHO Meter HT-3200. This digital tachometer is designed for accurate contact-type RPM measurements in various industrial and scientific applications. This manual provides essential information for the safe and effective use of your device, including setup, operation, maintenance, and troubleshooting.

2. Safety Information

Please read all safety warnings and instructions carefully before operating the HT-3200. Failure to follow these instructions may result in injury or damage to the device.

• Always ensure the measurement target is stable and safe to approach before taking readings.
• Do not attempt to measure rotating objects with exposed moving parts that could cause entanglement.
• Keep the device away from water, excessive dust, and extreme temperatures.
• Use only the specified battery type (AAA size x 3) and ensure correct polarity during installation.
• Do not disassemble or modify the device. Refer all servicing to qualified personnel.
• Store the device in a cool, dry place when not in use.

3. Product Overview

The ONO SOKKI HT-3200 is a compact and portable digital tachometer. Below is an image illustrating the device and its key components.

Figure 3.1: ONO SOKKI HT-3200 Digital Tachometer. This image displays the blue-colored HT-3200 tachometer from an angled perspective. The digital display shows "9800 r/min". Below the display are buttons labeled "RECALL/CLR" and "MEMORY/COND". At the top, the contact tip is visible, ready for measurement. The ONO SOKKI logo is printed at the bottom of the device.

Key Components:

• Digital Display: Shows RPM readings and other indicators.
• Measurement Tip: The contact point for measuring rotational speed.
• Operation Buttons: For functions like recall, clear, memory, and mode selection.
• Battery Compartment: Located at the rear for AAA batteries.
• Accessories: Includes Rotary Contact (KS-300) and Perimeter Ring (KS-200).

4. Setup

4.1 Battery Installation

1. Locate the battery compartment cover on the back of the HT-3200.
2. Slide or unclip the cover to open the compartment.
3. Insert three (3) AAA size batteries, ensuring correct polarity (+/-) as indicated inside the compartment.
4. Replace the battery compartment cover securely.

Note: Batteries included are for testing purposes and may have a shorter lifespan. Replace with new alkaline batteries for optimal performance.

4.2 Attaching Accessories

Depending on the measurement type, attach the appropriate accessory to the measurement tip:

• Rotary Contact (KS-300): For direct contact measurements of rotating shafts or surfaces.
• Perimeter Ring (KS-200): For measuring linear speed when attached to the rotary contact and rolled along a surface.

Gently push the accessory onto the measurement tip until it is firmly seated.

5. Operating Instructions

5.1 Powering On/Off

Press the POWER button (if available, or the main measurement button) to turn on the device. The display will illuminate. The device typically powers off automatically after a period of inactivity to conserve battery life.

5.2 Selecting Measurement Mode (L/H)

The HT-3200 offers two measurement modes:

• L Mode (Low Speed): For measurements from 0.5 to 2000.0 rpm. Provides higher accuracy at lower speeds.
• H Mode (High Speed): For measurements from 5 to 10,000 rpm.

Refer to the device's buttons (e.g., "COND" or a dedicated mode button) to switch between L and H modes as needed for your application.

5.3 Taking a Measurement

1. Ensure the correct accessory (Rotary Contact or Perimeter Ring) is attached.
2. Select the appropriate measurement mode (L or H) based on the expected RPM range.
3. Carefully bring the measurement tip into firm, stable contact with the center of the rotating shaft or the surface to be measured.
4. The RPM reading will appear on the digital display. Maintain contact until a stable reading is obtained.
5. Remove the device from the rotating object once the measurement is complete.

5.4 Using Memory Functions

The HT-3200 features memory functions to store and recall readings.

• MEMORY button: Press this button to save the current reading or cycle through stored readings.
• RECALL/CLR button: Use this button to recall stored data or clear the memory. Consult the device's specific button sequence for clearing memory.

6. Maintenance

6.1 Cleaning

• Wipe the device exterior with a soft, dry cloth.
• Do not use abrasive cleaners, solvents, or immerse the device in water.
• Ensure the measurement tip and accessories are free from debris before and after use.

6.2 Battery Replacement

When the battery indicator appears on the display or the device fails to power on, replace all three AAA batteries. Refer to Section 4.1 for battery installation instructions.

6.3 Storage

If the device will not be used for an extended period, remove the batteries to prevent leakage and store the HT-3200 in its original packaging or a protective case in a cool, dry environment.

7. Troubleshooting

8. Specifications

9. Support and Warranty

For technical support, service, or warranty inquiries regarding your ONO SOKKI TACHO Meter HT-3200, please contact your authorized ONO SOKKI distributor or the point of purchase. Please have your model number (HT-3200) and purchase date available when contacting support.

Note: AS ONE Corporation Japan provides services only for business companies or institutions (B to B). Products are exported from Japan. Lead times may vary depending on stock availability.