Halogen Moisture Analyzer for Food

What is the Halogen Moisture Analyzer for Food?

A halogen moisture analyzer dries a food sample with a halogen lamp and weighs it continuously to give moisture by loss-on-drying. It is the routine choice for powders, pastes and liquids when results are needed in minutes.

Overview

The sample is spread on a disposable pan and placed on a built-in balance inside a closed drying chamber. A halogen lamp heats the sample while the balance records mass at short intervals, and the instrument stops when the mass change per unit time falls below a set threshold. Moisture is displayed as a percentage of the initial or final mass, and results can be printed with drying parameters. Typical readability is 0.001 g or 0.01 percent, sample size is 1–10 g, and drying takes 3–15 minutes depending on the matrix. Methods are stored for each product so that temperature and endpoint criteria remain consistent. The closed chamber and rapid heating reduce the influence of ambient humidity compared with open oven methods.

How does it work?

Loss-on-drying instruments weigh a sample, heat it with an infrared or halogen lamp, and track mass until it stabilises; the mass loss is reported as moisture. Halogen lamps reach the drying temperature faster and distribute heat more evenly than infrared. Microwave drying drives water out from within the sample, which suits bulky or dense products. Capacitance meters in grain-moisture devices correlate the dielectric constant of a packed sample with water content using stored calibrations. Karl Fischer titration measures water chemically, by the iodine-sulfur dioxide reaction, and is the reference for low-moisture foods, oils and powders where volatiles would bias loss-on-drying. Vacuum oven drying remains the gravimetric reference method for many commodities.

What are the key features?

• Halogen lamp heating with rapid temperature ramp
• Built-in balance with 0.001 g readability
• Programmable drying temperature and endpoint criteria
• Stored methods per product for consistent testing
• Result display in moisture percentage or dry mass
• Printer and USB export for records

What are the technical specifications?

A typical halogen moisture analyzer for food configuration offers heating source of Halogen lamp, 400 W, balance readability of 0.001 g, maximum sample mass of 100 g, moisture range of 0.01–100 percent, temperature range of 40–200 °C and temperature accuracy of ±1 °C. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Halogen Moisture Analyzer for Food is used in flour, starch and powder moisture control, spice, seasoning and ingredient testing, dairy powder and beverage mix moisture and sausage, paste and semi-solid products. Across the wider Moisture Analyzers class, laboratories also deploy it for grain intake moisture and safe storage decisions, nutrition labelling and dry-basis calculations and in-process control of drying and blending.

Which standards and certifications apply?

Relevant standards and methods include ISO 712, ISO 6496, AOAC 925.10, ISO 760, ASTM E203 and ISO/IEC 17025. Certification candidates for this model are CE and ISO 9001 manufacturing; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Moisture results depend on sample handling, so grinding, portion size, spreading and cooling time must follow the method. Loss-on-drying instruments need periodic verification with reference materials or a drying oven comparison, and the balance inside them should be checked with traceable weights. Karl Fischer reagents are moisture-sensitive and need fresh solvent, correct titration parameters and regular drift checks. Capacitance meters must be set to the right crop calibration and corrected for temperature. Keep records of reference-method comparisons and store instruments away from draughts, direct sunlight and heat sources.

How do I select the right Halogen Moisture Analyzer for Food?

Choose a halogen moisture analyser for routine, in-house moisture control where speed matters more than referee status. Specify readability, temperature range and method memory for your product range, and verify the result against oven drying for each matrix. Consider an infrared model only if your method specifies it.

How does it compare with other Moisture Analyzers variants?

Match the method to the product and to the accuracy you must report. Loss-on-drying analysers are fast and simple and are ideal for routine control of powders, pastes and liquids, but volatile components other than water can cause a positive bias. Halogen models heat faster and suit high sample numbers, while microwave models handle dense or bulky products better. Capacitance meters are convenient for grain at intake but depend on crop-specific calibrations and are affected by temperature. Karl Fischer titration is required for oils, low-moisture powders and any product where the reference method specifies it. Confirm repeatability, sample size and the ability to store and export results.