1. Producte acabatview
The CERTEON MD917Plus Series Moisture Meter is a non-destructive, pinless moisture measurement device designed for rapid detection of moisture content in building materials and industrial materials. Utilizing high-frequency electromagnetic wave sensing technology, this instrument enables surface moisture analysis without damaging walls, floors, wood panels, or paper products.
It is suitable for construction inspection, renovation projects, wood processing, packaging control, and laboratory testing.

2. Especificacions
The MD917Plus series offers various models with specific measurement capabilities. Below is a detailed table outlining the specifications for each model.
| Item | MD917plus (Wall) | MD918plus (Wood) | MD919plus (Paper/Air) | MD920plus (Wall & Wood) |
|---|---|---|---|---|
| Principi de detecció | High-frequency electromagnetic wave | |||
| Interval de mesura | 0–40% (Wall) | 4–80% (Wood) | Paper: 2–40% Air: 10–80% RH | Wall: 0–40% Fusta: 2-80% |
| Precisió | ±(1%+1) | ±(1%+0.5) | Paper: ±(1%+0.5) Air: ±(2%~5%) | Max Error: ±2% |
| Resolució | 0.5% | |||
| Density Selection | 10 nivells | 10 wood types | 4 paper types | 10 nivells |
| Profunditat de mesura | 25 mm | |||
| Funcions | Upper limit setting, over-limit alarm, temperature compensation, low battery alert, auto temperature-zero compensation, 5-min auto shut-off | |||
| Font d'alimentació | 3 piles AAA de 1.5 V | |||
| Voltage | 4.5 V CC | |||
| Condicions de funcionament | Temperatura: 0–40 °C Humitat: 10–75% HR | |||
| Dimensions | 132 × 67 × 26 mm | |||
| Pes | 95 g (sense les piles) | |||
| Material | Carcassa d'ABS | |||


3. Configuració
- Instal·lació de la bateria: Open the battery compartment on the back of the device. Install three (3) AAA 1.5V batteries, ensuring correct polarity as marked inside the compartment. Close the battery cover securely.
- Encès: Press the Power button (usually labeled with a power symbol or "MODE") to turn on the device. The LCD display will illuminate.
- Seleccioneu el mode de mesura: Use the "MODE" button to cycle through the available measurement modes (e.g., Wall, Wood, Paper, Air) until the appropriate material type is selected for your measurement.
- Set Density Level (if required): If measuring wood or paper, use the "DENSITY" or "SWITCH" buttons to select the correct density level or material profile. Refer to the specifications for your specific model for available density options.


4. Instruccions de funcionament
- Posicionar el dispositiu: Place the sensing area of the meter flat against the surface of the material you wish to measure. Ensure there are no gaps and full contact is made between the sensor and the material.
- Eviteu interferències: Do not measure directly over metal surfaces, nails, or reinforced concrete bars, which can interfere with readings. Keep the measuring area free from strong electromagnetic interference.
- Mantingueu-vos ferms: Hold the device steady during the measurement process to ensure stable and accurate readings.
- Llegir dades: The moisture value will be displayed directly on the LCD.
- Indicació d'alarma: If the measured value exceeds a preset upper limit, an alarm indicator will activate.
- Apagat automàtic: El dispositiu s'apagarà automàticament després de 5 minuts d'inactivitat per estalviar la vida de la bateria.

5. Manteniment
- Emmagatzematge: Store the device in a dry and well-ventilated location. Keep it away from direct sunlight and high humidity.
- Neteja: Clean the housing with a soft, dry cloth. Do not use solvents or abrasive cleaners, as these can damage the device.
- Inspecció de la bateria: Inspect the batteries periodically to prevent leakage, especially if the device will not be used for an extended period. Remove batteries if storing for long durations.
- Atenció general: Do not disassemble the device. Operate only within the specified temperature and humidity range.
6. Solució De Problemes
This section addresses common issues you might encounter with your moisture meter. For more complex problems, please refer to the Warranty/Support section.
- Cap pantalla/Dispositiu que no s'encén:
- Comproveu si les piles estan instal·lades correctament amb la polaritat correcta.
- Replace with fresh AAA batteries if current ones are depleted.
- Lectures inexactes:
- Ensure the sensing area is in full contact with the material surface without gaps.
- Verify that you are not measuring over metal objects, nails, or reinforced concrete, which can interfere with readings.
- Confirm the correct material mode and density level are selected for the material being tested.
- Ensure the device is operated within the specified temperature and humidity range (0–40 °C, 10–75% RH).
- Alarm Constantly Triggering:
- The material being measured likely exceeds the preset moisture limit. This indicates high moisture content.
- Check the upper limit setting to ensure it is appropriate for your application.
- Device Powers Off Unexpectedly:
- The device has an auto power-off feature after 5 minutes of inactivity. This is normal behavior.
- If it powers off during active use, check battery levels.
7. Consells d'usuari
- Ús versàtil: The MD917plus and MD920plus models are highly versatile and can be used effectively on painted, tiled, or concrete wall surfaces without causing damage.
- Wood Measurement: For precise wood moisture measurements, consider using the MD918plus or MD920plus. The MD918plus offers a broad range (up to 80%) and 10 specific wood density settings for enhanced accuracy.
- No Manual Calibration: You do not need to manually calibrate the device. It features automatic temperature-zero compensation and material-type presets, simplifying operation.
8. Garantia i Suport
This document is provided for product instruction purposes only and does not constitute legal advice. The seller is responsible for ensuring compliance with destination market regulations.
Important Warning Information (EU Market Reference)
ADVERTIMENT!
- This device uses electromagnetic sensing technology. Do not use near sensitive medical equipment such as pacemakers.
- Do not expose the device to rain or immerse in water.
- Risk of battery leakage or explosion if batteries are installed incorrectly.
- Use only AAA 1.5 V batteries.
- Mantenir fora de l'abast dels nens.
- Proper disposal: Follow WEEE Directive 2012/19/EU for electronic waste disposal. Do not dispose of batteries in household waste. Follow Battery Directive 2006/66/EC.
Note: The above warning information is for reference only. Final warning language must comply with the official language requirements of the destination EU country.
Recursos addicionals
Podeu descarregar un manual d'usuari detallat en format PDF: View Manual d'usuari (PDF)