Hướng dẫn sử dụng máy đo độ ẩm Wohler 8440 HBF 420

1. Giới thiệu

The Wohler HBF 420 Moisture Meter is a versatile hand-held instrument designed to assess moisture content in various materials. It uniquely combines electrical resistance and dielectric measurement techniques, making it ideal for quickly assessing moisture profiles in building materials and precisely determining moisture content in wood. This manual provides comprehensive instructions for the safe and effective use of your device.

2. Thông tin an toàn

Please read all safety instructions carefully before operating the device. Failure to follow these instructions may result in injury or damage to the meter.

• Không để thiết bị tiếp xúc với nhiệt độ quá cao, độ ẩm hoặc ánh nắng trực tiếp.
• Để thiết bị tránh xa từ trường mạnh.
• Không tự ý mở hoặc sửa chữa thiết bị. Vui lòng liên hệ nhân viên có trình độ để được bảo dưỡng.
• Ensure the measurement pins are clean and free from debris before use.
• Handle the measurement pins with care to avoid injury.
• Bỏ pin theo quy định của địa phương.

3. Sản phẩm hếtview

The Wohler HBF 420 is designed for ease of use and accurate measurements. Key features include:

• Dual measurement techniques: Dielectric for quick assessment and Resistance for precise wood moisture.
• Automatic temperature compensation for accurate readings.
• Màn hình kỹ thuật số rõ nét.

Hình 3.1: Wohler HBF 420 Moisture Meter. This image shows the blue meter with its protective cap removed, revealing the digital display, control buttons (SET, M, power), and the two sharp measurement pins at the bottom. The display shows "16".

Hình 3.2: Using the Wohler HBF 420 Moisture Meter. A hand is shown holding the blue meter against a concrete surface, demonstrating its application for measuring moisture in building materials. The display shows "8.9".

4. Thiết lập

4.1 Lắp đặt pin

The Wohler HBF 420 requires 4 AAA batteries for operation.

1. Xác định vị trí nắp ngăn chứa pin ở mặt sau của thiết bị.
2. Trượt hoặc mở nắp để mở ngăn.
3. Lắp 4 pin AAA, đảm bảo lắp đúng cực (+/-) như chỉ dẫn bên trong ngăn chứa.
4. Lắp lại nắp ngăn chứa pin một cách an toàn.

4.2 Bật nguồn ban đầu

Bấm nút nguồn (⏻) to turn on the device. The display will illuminate and show a brief startup sequence.

5. Hướng dẫn vận hành

5.1 Chọn chế độ đo

The HBF 420 supports two primary measurement techniques:

• Dielectric Measurement: For quick assessment of moisture in building materials. This mode uses the sensor on the back of the device.
• Đo điện trở: For precise determination of moisture content in wood using the integrated pins.

Sử dụng M button to toggle between measurement modes. The display will indicate the active mode.

5.2 Thực hiện một phép đo

1. For Dielectric Measurement: Place the back of the device flat against the surface of the material you wish to measure. Ensure full contact. The reading will appear on the display.
2. For Resistance Measurement (Wood): Carefully press the two measurement pins into the wood surface. Ensure both pins penetrate the material. The moisture content will be displayed.
3. Read the value on the digital display.

5.3 Bù nhiệt độ

For accurate resistance measurements in wood, the device offers automatic temperature compensation. Enter the material temperature using the BỘ button and navigation controls (if available, based on typical Wohler interfaces, assuming the SET button is for settings/calibration). Refer to the on-screen prompts for specific temperature input procedures.

5.4 chức năng báo thức

The device features an alarm function (indicated by "ALARM" on the device). Consult the device's on-screen menu or specific button functions to set or adjust alarm thresholds for moisture levels.

6. Bảo trì

6.1 Vệ sinh

Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure the measurement pins are clean and free of residue after each use.

6.2 Lưu trữ

When not in use, store the Wohler HBF 420 in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries to prevent leakage.

KHAI THÁC. Xử lý sự cố

8. Thông số kỹ thuật

9. Bảo hành và Hỗ trợ

For warranty information and technical support, please contact Wohler customer service directly. Refer to the product packaging or the official Wohler webtrang web để biết chi tiết liên hệ.

Wohler Webđịa điểm: www.wohler.com