Computrac MAX 4000XL


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Note: Accessory kits (sold separately) are necessary to operate this product. Accessory kits and other requirements like power cords can be purchased using the following links:
Purchase Computrac® accessory kits
Purchase power cords (only for 220V)
Purchase Operation Manual

The Computrac® MAX® 4000XL provides quick, reliable, and accurate results for moisture analysis. This instrument improves the ability to adjust or monitor processes, ensuring quality products while minimizing waste, energy requirements, and man-hours. Ease of use and durability, along with superior service and support, make the Computrac® MAX® 4000XL an ideal choice for research, manufacturing, and laboratory environments

  • Accurate: Precise, repeatable results powered by a 100 microgram resolution balance.
  • Durable: Made in the USA with an all-steel enclosure, the MAX® 4000XL was designed for heavy-duty use.
  • Quick: Exclusive rapid-cooling system improves throughput by 25% over other rapid loss on drying instruments.
  • Versatile: 
  • The MAX® 4000XL is robust enough to excel in a wide range of applications, from foods to plastic to paper.

World-class support: Should you encounter a challenging application, our team of moisture analysis experts is here to help, free of charge.

Features and Benefits

  • Rugged Construction: Equipped with an all-steel enclosure and a durable nickel chromium heating element, the Computrac® MAX® 4000XL is designed to provide lab-quality data whether it is in the lab or on the production floor.
  • Rapid Cooling System: The built-in lid fan quickly cools the heating chamber to reduce the time between tests and increase overall throughput by 25%.
  • Versatile: The MAX 4000XL is able to test material up to 100 times faster than standard oven reference methods and is ideal for everything from plastics and pharmaceuticals to foods, chemicals, and more.
  • Flexible Ending Criteria: User-adjustable ending criteria help to optimize test results and performance for your unique application or material.
  • Multistage Testing: Several tests can be linked in order to form a single, multistage test that can change temperatures, landing criteria, and times between each test segment. This is especially useful for method development and for measuring both free and bound moisture in products that contain waters of hydration.
  • Real-Time Results: The MAX 4000XL offers simple, menu-driven operation and a user-programmable interface with a keypad and large color display that allows users to view real-time moisture curve and rate of moisture loss graphs during testing.
  • Web Server: An optional web server allows users to download calibration reports, view the LCD screen, download the audit log, and upload and download test programs, results, and graphs.
  • Data Storage: The MAX 4000XL stores up to 250 test programs and retains the last 1000 test results and the last 100 test graphs.

Moisture | Solids Range:

0.005% to 100%

Dry Weight Range:

0% to 300%

Moisture Resolution:


Balance Resolution:

0.0001 g


0.002% SD *dependent on the test program

Temperature Range:

25°C to 275°C

Heating Element

Nickel Chromium

Sample Size:

100 mg to 40 g


Moisture, Solids, Dry Weight, Purity

Ending Criteria:

User-adjustable: Prediction, Rate, Time and 4 other combinations


Stores up to 250 Programs, last 1000 test
results and last 100 graphs

Statistical Analysis:

Mean, SD, RSD

Balance Calibration:

Menu-driven calibration by the end-user;
NIST traceable calibration performed by the manufacturer

Heater Calibration:

Menu-driven, NIST traceable calibration by the end-user with optional
Temperature Calibration Kit

Operating Environment:

0-40 ºC at <50% RH;
0-30 ºC at <80% RH

Power Requirements:

100-120 VAC, 50/60 Hz, 8A or
220-240 VAC, 50/60 Hz, 4A


9.5” H x 11.5” W x 19.5” D
(24 cm H x 30 cm W x 49.5 cm D)


32 lbs. (14.5 kg)


Two years, factory parts and labor (one year international)

Rear Panel Connections:

USB A and B, ethernet, serial port


1/4 VGA, 320 x 240 pixel, color



ASTM & Regulatory Compliances

21 CFR Part 11 Compliant (optional): Meet regulatory compliance standards for pharmaceutical and medical device companies
ASTM D6980-12: Standard Test Method for Determination of Moisture in Plastics by Loss in Weight (MAX® 4000XL and MAX® 5000XL)
ASTM D7232-06: Standard Test Method for Rapid Determination of the Nonvolatile Content of Coatings by Loss in Weight (MAX® 4000XL and MAX® 5000XL)
ASTM C471M-16: Standard Test Methods for Chemical Analysis of Gypsum and Gypsum Products (Metric)

Learn how you can try a Computrac® for free. 

Contact our sales team for more information on our Computrac® series. 


 Computrac MAX4000XL Brochure