DURFICST Pinless Moisture Meter WM700A User Manual

1. Introduction

Thank you for choosing the DURFICST Pinless Moisture Meter WM700A. This device is designed for non-destructive measurement of moisture content in various materials, including wood (softwood, hardwood), drywall, and masonry. Its advanced high-frequency electromagnetic wave sensor allows for quick and accurate readings without damaging the surface of the material. The meter features an alarm function for out-of-range moisture levels, one-touch zero calibration, and a clear LCD color display for ease of use. Please read this manual thoroughly before operation to ensure proper use and optimal performance.

2. Product Overview

2.1. Device Components

Familiarize yourself with the main components of your DURFICST WM700A moisture meter:

• LCD Color Display: Shows moisture readings, temperature, humidity, and selected material mode.
• Power Button: Turns the device ON/OFF.
• SEL Button: Selects the material measurement mode.
• ZERO Button: Performs one-touch zero calibration.
• HOLD Button: Freezes the current reading on the display.
• °C/°F Button: Toggles between Celsius and Fahrenheit temperature units.
• Electromagnetic Sensor: Located on the back, used for non-contact moisture detection.
• Battery Compartment: Houses the AAA batteries.

2.2. Product Views

Figure 1: Front view of the DURFICST WM700A Pinless Moisture Meter.

Figure 2: Back view showing the electromagnetic sensor for non-destructive measurement.

Figure 3: LCD display indicating temperature and humidity readings.

3. Setup

3.1. Battery Installation

1. Open the battery compartment cover on the back of the device.
2. Insert three (3) AAA alkaline batteries, ensuring correct polarity.
3. Close the battery compartment cover securely.

Figure 4: Product packaging showing included batteries.

3.2. Power On/Off

• To power ON: Press the Power button briefly.
• To power OFF: Press and hold the Power button for 2 seconds.

3.3. Automatic Shutdown

The device features an automatic shutdown function to conserve battery power. If no operation is performed for 10 minutes, the meter will automatically turn off.

• To disable automatic shutdown: Press and hold the HOLD/BL button while powering on the device. The auto-off indicator will not be displayed.

Figure 5: Illustration of the 10-minute auto-off feature.

3.4. Backlight

The LCD display has a backlight for improved visibility in low-light conditions.

• To turn ON/OFF the backlight: Briefly press the HOLD/BL button.

4. Operating Instructions

4.1. Selecting Measurement Mode

The DURFICST WM700A supports measurement for four material types:

• DRYWALL
• MASONRY
• SOFTWOOD
• HARDWOOD

Press the SEL button repeatedly to cycle through the available material modes until the desired mode is displayed.

Figure 6: Display showing various material modes and their corresponding moisture ranges.

Figure 7: Examples of materials that can be measured: Hardwood, Softwood, Masonry, Drywall.

4.2. Zero Calibration

For the most accurate results, perform a zero calibration before each measurement session or when changing measurement environments.

1. Hold the meter in the air, away from any objects.
2. Press the ZERO button. The display should show "0.0%" or a very low value.
3. If you need to identify wet spots on a surface, first calibrate the device on a relatively dry area of the same material. Then, move the device across the surface to detect areas with higher moisture content.

Figure 8: Illustration of zero calibration in air and subsequent material measurement.

4.3. Taking a Measurement

1. Ensure the correct material mode is selected (refer to Section 4.1).
2. Place the back of the meter (where the sensor is located) flat against the surface of the material you wish to measure.
3. The moisture content will be displayed on the LCD screen. The electromagnetic waves penetrate 20-40mm into the material for measurement.

Figure 9: Measuring moisture content on a wooden surface.

4.4. Interpreting Readings and Alarm Function

The meter provides a numerical moisture percentage and a visual indicator (DRY, MID, WET) on the display. An audible alarm will sound if the moisture content exceeds predefined thresholds:

• DRYWALL / MASONRY Modes: Alarm sounds if moisture exceeds 70%.
• SOFTWOOD / HARDWOOD Modes: Alarm sounds if moisture exceeds 20%.

Figure 10: Display indicating alarm conditions for different material types.

4.5. HOLD Function

To freeze the current reading on the display, press the HOLD button briefly. Press it again to release the hold and resume live readings.

Figure 11: Using the HOLD function to retain a measurement.

4.6. Temperature Unit Change

To switch between Celsius (°C) and Fahrenheit (°F) for temperature display, press and hold the °C/°F button for 3 seconds.

Figure 12: Display showing temperature in both Celsius and Fahrenheit.

5. Maintenance

• Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Storage: Store the meter in a cool, dry place, away from direct sunlight and extreme temperatures. Remove batteries if the device will not be used for an extended period.
• Battery Replacement: Replace batteries when the low battery indicator appears on the display.

6. Troubleshooting

7. Specifications

8. Important Notes

The DURFICST Pinless Moisture Meter WM700A provides non-destructive, relative moisture measurements. Unlike traditional pin-type meters, its readings are not absolute values but are highly effective for comparing moisture levels within the same material or across different areas to identify variations. This method ensures no damage to the material surface during inspection.

9. Official Product Videos

10. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the contact information provided with your product packaging or visit the official DURFICST website. Keep your purchase receipt as proof of purchase for warranty claims.