Proster Spherical Inductive Moisture Meter User Manual

1. Introduction and Overview

The Proster Spherical Inductive Moisture Meter (Model MT68) is a non-destructive device designed for quick and easy measurement of moisture content in various building materials. It features a spherical probe for analysis depth of 5-40mm, a color LCD display, and an alarm function to indicate moisture levels.

• Non-Destructive Measurement: No need to insert probes into the material, preserving surfaces.
• Quick and Easy Operation: Features a three-color indicator for easy reading identification and a built-in flashlight for dark environments.
• Wide Measurement Range: Suitable for gypsum, cementitious substrates, wood, paper, paperboard, tile, and plasterboard.
• Accurate Readings: Includes a Hold Function to record current measurements and displays maximum and minimum moisture values.
• Adjustable Parameters: Allows setting of humidity alarm values based on specific needs.

2. What's in the Box

Upon opening the package, ensure all components are present:

• Proster Spherical Inductive Moisture Meter (MT68)
• AAA Batteries (x3)
• Storage Bag (x1)
• User Manual (x1)

Figure 2.1: Contents of the Proster Spherical Inductive Moisture Meter package.

3. Product Components and Controls

Familiarize yourself with the different parts and controls of the moisture meter:

Figure 3.1: Front and back view of the moisture meter with labeled components.

• Spherical Probe Sensor: Used for non-destructive moisture detection.
• Flashlight: Provides illumination for measurements in dark areas.
• HD Color Screen: Displays moisture readings and other information.
• Indicator Light: Provides visual cues for moisture levels (Dry, Risk, Wet).
• UP Button: Navigates menus or adjusts settings upwards.
• SET Button: Enters settings mode or confirms selections.
• Battery Compartment: Houses the AAA batteries.
• Anti-slip Strip: Enhances grip during use.
• MEAS/HOLD/CAL Button: Initiates measurement, holds data, or calibrates the device.
• DOWN/Flashlight Button: Navigates menus or adjusts settings downwards, also activates/deactivates the flashlight.
• Power Button: Turns the device on or off.

4. Setup

4.1 Battery Installation

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

4.2 Initial Power On and Calibration

1. Press and hold the Power Button to turn on the device.
2. Upon initial power-on or before taking measurements, it is recommended to calibrate the device.
3. To calibrate, press the "MEAS" button. The screen will display "CAL" and the device may beep.
4. During calibration, ensure the device is held at least 100mm away from any objects or surfaces.

5. Operating Instructions

5.1 Non-Destructive Measurement

The spherical probe allows for non-invasive moisture detection. The measuring depth is between 5mm and 40mm (approximately 2 inches) below the surface.

1. Ensure the device is calibrated (refer to Section 4.2).
2. Place the spherical probe directly onto the surface of the material you wish to measure.
3. The device will display the moisture reading on the HD color screen.

Figure 5.1: Illustration of the non-destructive measurement depth of the spherical probe.

5.2 Visual Humidity Alert (Three-Color Indicator)

The meter provides a visual indication of moisture levels using a three-color analog bar on the display:

• Green (DRY): Indicates low moisture content.
• Yellow (RISK): Indicates moderate moisture content, suggesting potential risk.
• Red (WET): Indicates high moisture content, signifying a wet condition.

Figure 5.2: Visual humidity alerts and corresponding moisture level thresholds for various materials.

5.3 Data Hold Function

To freeze the current measurement on the screen:

• While taking a measurement, press the "MEAS" button briefly. The "HOLD" icon will appear on the screen.
• Press the "MEAS" button again to exit the hold function and resume live measurements.

The device also records the maximum (MAX) and minimum (MIN) moisture values detected during a measurement session, displayed below the main reading.

Figure 5.3: Understanding the display, including data hold, maximum, and minimum values.

5.4 Audible Out-of-Range Alarm

The meter features an audible alarm (beeper) that activates when moisture levels exceed the set thresholds (Risk or Wet). This provides an immediate alert without needing to constantly monitor the screen.

Figure 5.4: Audible alarm indication when moisture levels are high.

5.5 Built-in Flashlight

For measurements in dimly lit or dark areas, the meter includes a built-in flashlight.

• Press the DOWN/Flashlight Button briefly to turn the flashlight on.
• Press the button again to turn the flashlight off.

5.6 Setting Alarm Thresholds

You can adjust the moisture alarm values for "RISK" and "WET" levels according to your specific requirements or material types.

1. Press the "SET" button to enter the setting mode.
2. Use the UP or DOWN buttons to adjust the desired "RISK" or "WET" threshold value.
3. Press the "SET" button twice to exit the setting mode and save changes.

Figure 5.5: Steps for setting custom alarm thresholds for moisture levels.

5.7 Application Scenarios

The Proster Spherical Inductive Moisture Meter is versatile and can be used for quick detection of moisture in various materials and environments:

• Tiles: Check for moisture behind bathroom or kitchen tiles.
• Plasterboard Ceilings: Detect leaks or dampness in ceilings without damaging the surface.
• Wooden Flooring: Assess moisture content in hardwood or laminate floors.
• Wood: Ideal for DIY wood projects, checking lumber, or firewood.

Figure 5.6: Examples of common application scenarios for the moisture meter.

6. Maintenance

• Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Storage: Store the meter in its provided storage bag in a cool, dry place when not in use. Remove batteries if storing for extended periods to prevent leakage.
• Battery Replacement: Replace batteries when the low battery indicator appears on the screen to ensure accurate readings.

7. Troubleshooting

8. Specifications

9. Warranty and Support

Proster products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact details provided in the original product packaging or visit the official Proster website.

For additional information and product updates, you may visit the Proster Store on Amazon.