1. Introduction
This manual provides detailed instructions for the proper setup, operation, and maintenance of the Radwag MA 50/1.X7.A Moisture Analyzer. This device is designed for precise determination of moisture content in various samples using a thermogravimetric method, suitable for laboratory and scientific applications.

Image 1.1: Front view of the Radwag MA 50/1.X7.A Moisture Analyzer with the drying chamber open. The heating element and sample pan are visible, along with the touchscreen display showing measurement parameters.
2. Safety Information
Always observe the following safety precautions to prevent injury and damage to the device:
- Do not touch the heating element or sample pan during or immediately after operation, as they can reach high temperatures.
- Ensure the device is placed on a stable, level, and heat-resistant surface.
- Operate the analyzer in a well-ventilated area.
- Disconnect the power cord before cleaning or maintenance.
- Use only the power adapter supplied with the device.
3. Unpacking and Initial Setup
3.1. Unpacking
Carefully remove the moisture analyzer and all accessories from its packaging. Retain the original packaging for future transport or storage.
3.2. Placement
Place the analyzer on a firm, level surface free from vibrations, drafts, and direct sunlight. Ensure adequate space around the device for ventilation.
3.3. Leveling
Adjust the leveling feet until the bubble in the spirit level is centered. This ensures accurate weighing results.
3.4. Power Connection
Connect the power adapter to the analyzer and then to a suitable electrical outlet. The device is now ready for operation.

Image 3.1: The Radwag MA 50/1.X7.A Moisture Analyzer with its lid fully open, revealing the circular sample pan and the internal heating mechanism. The touchscreen display is visible at the front.
4. Operating Instructions
4.1. Powering On and Display Overview
Press the power button to turn on the device. The 7-inch capacitive color touchscreen will display the main operating interface. This display is fully customizable with hot-keys, widgets, and quick menus, allowing for smartphone-style control even with laboratory gloves.

Image 4.1: A detailed diagram illustrating the layout and functionality of the 7-inch color touchscreen display on the X7 series moisture analyzers. Key areas such as the weighing result, status bar, information panel, and quick access keys are labeled.
4.2. Drying Profiles and Finish Modes
The MA 50/1.X7.A offers versatile drying capabilities with four distinct drying profiles and four finish modes:
- Drying Profiles: Standard, Fast, Step, Mild. These profiles cater to various sample types and desired drying speeds.
- Finish Modes: Automatic, Manual, Time-defined, User-defined. These modes determine how the drying process concludes.
4.3. Automated Drying Chamber
The X7 series features an innovative system that automatically opens and closes the drying chamber. This can be activated via a button or proximity sensors, offering several operational benefits:
- Maintains cleanliness by reducing physical contact.
- Ensures consistent chamber closure for repeatable results.
- Automates the drying process, enhancing efficiency.
- Improves safety by minimizing contact with hot surfaces.
- Enhances ergonomic operation.

Image 4.2: A visual representation of the automated drying chamber mechanism on the X7 series moisture analyzer, highlighting its automatic opening and closing function and the benefits it provides.
4.4. Performing a Measurement
- Prepare Sample: Ensure the sample is representative and prepared according to your application's standards.
- Place Sample Pan: Carefully place an empty, clean sample pan onto the weighing platform.
- Tare: Press the 'Tare' button on the touchscreen to zero the balance.
- Add Sample: Distribute the prepared sample evenly on the sample pan.
- Select Program: Choose the appropriate drying profile and finish mode from the touchscreen menu.
- Start Measurement: Close the drying chamber and press the 'Start' button to begin the drying process. The analyzer will display real-time data during the measurement.
4.5. Interpreting Results
Upon completion of the drying process, the moisture analyzer provides the following results:
- %M (Mass Loss): Displays the percentage of mass change recorded during the drying process, representing the moisture content.
- %D (Dry Mass): The percentage of the sample that remains on the weighing pan after the moisture has evaporated.
- %R (Ratio): The ratio of moisture content to dry mass.
- g (Mass after Drying): The absolute sample mass in grams after the drying process is complete.

Image 4.3: A diagram illustrating the various results provided by the moisture analyzer at the conclusion of a drying process, including %M (mass loss), %D (dry mass), %R (ratio), and 'g' (sample mass after drying).
5. Data Management and Connectivity
5.1. Databases
The X7 series moisture analyzers feature an integrated information system with 8 databases, enabling comprehensive management of data and products. This allows multiple users to store and analyze various types of information:
- Users: Up to 100 entries
- Products: Up to 5,000 entries
- Packaging: Up to 100 entries
- Customers: Up to 1,000 entries
- Weighings: Up to 50,000 records
- Drying programs: Up to 200 entries
- Drying process reports: Up to 5,000 entries
- Ambient conditions: Up to 10,000 records

Image 5.1: A diagram visually representing the extensive database capabilities of the X7 series moisture analyzers, showing icons for users, products, weighings, and other data types.
5.2. Communication Interfaces
The X7 series moisture analyzers offer comprehensive connectivity options for data transfer and integration into laboratory systems:
- RS-232: Two ports for connecting to printers or other serial devices.
- USB-A/B: For connecting USB devices (e.g., flash drives) or direct PC connection.
- Ethernet: For network integration.
- Wi-Fi: For wireless network connectivity.

Image 5.2: A diagram highlighting the various communication ports located on the rear panel of the X7 series moisture analyzer, including USB Type A, USB Type B, RS 232, and Ethernet connections.
6. Maintenance
6.1. Cleaning
Regular cleaning ensures optimal performance and longevity of your moisture analyzer.
- Exterior: Wipe the exterior surfaces with a soft, damp cloth. Use a mild detergent if necessary. Avoid abrasive cleaners or solvents.
- Sample Pan: Remove the sample pan and clean it with a soft brush or cloth. Ensure it is completely dry before re-installing.
- Drying Chamber: Carefully clean the interior of the drying chamber using a soft brush to remove any sample residue. Ensure the device is cool before cleaning.
6.2. Calibration
Regular calibration is crucial for maintaining the accuracy of your moisture analyzer. Refer to the on-screen menu for detailed calibration procedures. It is recommended to perform calibration periodically or as required by your quality control protocols.
7. Troubleshooting
This section addresses common issues you might encounter with your Radwag MA 50/1.X7.A Moisture Analyzer.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inaccurate or inconsistent readings | Device not level, vibrations, drafts, dirty sample pan, incorrect sample preparation, calibration required. | Check leveling, ensure stable environment, clean sample pan, follow proper sample preparation, perform calibration. |
| Device not powering on | Power cord disconnected, faulty power outlet, power adapter issue. | Verify power cord connection, try a different outlet, check power adapter. |
| Drying process takes too long or is too fast | Incorrect drying profile or finish mode selected. | Adjust the drying profile (Standard, Fast, Step, Mild) and finish mode (Automatic, Manual, Time-defined, User-defined) to suit the sample and application. |
| Error message on display | Specific operational error or internal fault. | Refer to the on-screen help for the specific error code. If the issue persists, contact technical support. |
8. Specifications
Key technical specifications for the Radwag MA 50/1.X7.A Moisture Analyzer:
| Feature | Detail |
|---|---|
| Model | MA 50/1.X7.A |
| Capacity | 50g |
| Readability | 0.1mg |
| Display Type | Digital, 7-inch capacitive color touchscreen |
| Drying Profiles | Standard, Fast, Step, Mild |
| Finish Modes | Automatic, Manual, Time-defined, User-defined |
| Connectivity | RS-232 (x2), USB-A/B, Ethernet, Wi-Fi |
| Special Features | Smart, Data Lock, Fault Display, Automated Drying Chamber, GLP/GMP toolkit, Autotest, Statistics, Sample Traceability |
| Recommended Uses | Laboratory/Scientific applications |
| Manufacturer | Radwag |
9. Warranty and Support
For detailed warranty information, technical support, and service inquiries, please refer to the official Radwag website or contact your local authorized distributor. Ensure you have your product model and serial number available when seeking support.
Online Resources: www.radwag.com





