1. Bubuka
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. Émbaran Kasalametan
Please read all safety instructions carefully before operating the device. Failure to follow these instructions may result in injury or damage to the meter.
- Ulah ngalaan alat ka suhu ekstrim, kalembaban, atawa sinar panonpoé langsung.
- Jauhkeun alat tina médan magnét anu kuat.
- Ulah nyobian muka atawa ngalereskeun alat sorangan. Rujuk sadayana jasa ka tanaga anu mumpuni.
- Ensure the measurement pins are clean and free from debris before use.
- Handle the measurement pins with care to avoid injury.
- Buang batré nurutkeun peraturan lokal.
3. Produk Langkungview
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.
- tampilan digital jelas.

Gambar 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".

Gambar 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. Setélan
4.1 Pamasangan batré
The Wohler HBF 420 requires 4 AAA batteries for operation.
- Teang tempat panutup kompartemen batre dina tonggong alat.
- Geser atawa cabut panutup panutup pikeun muka kompartemen.
- Selapkeun 4 batré AAA, mastikeun polaritasna bener (+/-) sakumaha dituduhkeun di jero kompartemen.
- Ganti panutup kompartemen batré aman.
4.2 Daya Awal Hurung
Pencét tombol kakuatan (⏻) to turn on the device. The display will illuminate and show a brief startup sequence.
5. Parentah Operasi
5.1 Milih Modeu Pangukuran
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.
- Ukur résistansi: For precise determination of moisture content in wood using the integrated pins.
Ngagunakeun éta M button to toggle between measurement modes. The display will indicate the active mode.
5.2 Nyandak Pangukuran
- 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.
- 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.
- Read the value on the digital display.
5.3 Santunan Suhu
For accurate resistance measurements in wood, the device offers automatic temperature compensation. Enter the material temperature using the SET 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 Fungsi Alarm
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. Pangropéa
6.1 beberesih
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 Panyimpenan
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.
7. Cara ngungkulan
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Alat teu hurung. | Batré paéh atawa salah dipasang. | Pariksa polaritasna batré; ngaganti accu. |
| Bacaan teu akurat. | Poor contact with material; dirty pins; incorrect mode. | Ensure full contact; clean pins; verify correct measurement mode. |
| Tampilan kosong atanapi kedip-kedip. | Batré lemah; kasalahan internal. | Replace batteries. If problem persists, contact support. |
8. Spésifikasi
| Atribut | Rincian |
|---|---|
| Dimensi produk | 7.87 x 3.15 x 2.36 inci |
| Item Beurat | 6.4 ons |
| Nomer Modél Item | 8440 |
| Batré | 4 batré AAA diperlukeun |
| Produsén | Wohler |
| Negara asal | Jérman |
| Tipe Pamasangan | Tabletop |
9. Garansi jeung Rojongan
For warranty information and technical support, please contact Wohler customer service directly. Refer to the product packaging or the official Wohler websitus pikeun detil kontak.
Wohler Websitus: www.wohler.com





