Qu'est-ce que l'analyse thermogravimétrique de l'humidité ?
La teneur en humidité influence le poids, la densité, la viscosité, l'indice de réfraction et la conductivité électrique d'un matériau. Les méthodes d'analyse de la teneur en eau tendent à exploiter une ou plusieurs de ces propriétés physiques ou chimiques. Les mesures directes portent sur la présence de l'eau elle-même, soit par son élimination, soit par une interaction chimique. L'utilisation d'un analyseur d'humidité thermogravimétrique permet de mesurer directement la teneur en eau d'un échantillon en utilisant la technique de la perte à la dessiccation (PDS). Cette dernière mesure le poids d'un échantillon avant et après une procédure de séchage et utilise le delta de poids pour déterminer le pourcentage d'humidité en tant que poids éliminé par le processus de séchage par rapport au poids initial de l'échantillon.
En règle générale, ce processus se déroule dans un four de séchage avec un équilibre pour déterminer le poids initial et final de l'échantillon et utiliser un calcul mathématique simple pour déterminer le taux d'humidité ([poids initial - poids final]/poids initial). Ce processus prend généralement plusieurs heures et est sujet à des erreurs de la part de l'utilisateur. Un analyseur d'humidité fonctionne sur le même principe, mais il s'agit d'un système automatisé qui utilise un élément chauffant contrôlé par microprocesseur et un analyseur réunis en un seul appareil ; l'utilisation d'un tel appareil permet de mesurer la teneur en humidité d'un échantillon en quelques minutes plutôt qu'en plusieurs heures.
Analis is distributor of Ohaus moisture balances and balances for Belgium, the Netherlands and Luxembourg.
Analis is distributor of Memmert Ovens and Incubators for Belgium, the Netherlands and Luxembourg.
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Faster, Smarter, and More Efficient Moisture Analysis
You can analyze more samples using the MB120, retrieve data that has been recorded, and spend more time utilizing your findings rather than preparing.
Everything we use on a daily basis is impacted by moisture. As a result, being able to precisely ascertain the moisture content of samples is frequently crucial. Our flagship moisture analyzer, the MB120, is capable of handling both simple and complex readings, making the procedure easier, faster, and more effective overall. You can analyze more samples using the MB120, retrieve data that has been recorded, and spend more time utilizing your findings rather than preparing.
Applications
Percent Moisture Determination, Percent Moisture Regain Determination, Percent Solid Determination, and Weighing
Display
4.3" TFT color touchscreen display
Operation
Power cord (included)
Communication
RS232 with GLP/GMP data output, USB Host and USB Device (included)
Construction
Metal base, ABS top housing, halogen heat source, stainless steel pan support, stainless steel pan handler, in-use cover
Design Features
Seven shut-off criteria (manual, timed, autofree %/s, autofree mg/s, A30, A60 and A90), four drying profiles (standard, fast, ramp and step), storage up to 100 methods and 1000 test results for all methods, user guide, 40°C to 230°C heating temperature range (1°C increments), 14 operational languages
Simple Operation. Precise Results.
Measuring moisture content has never been easier than with the MB90 Moisture Analyzer. The MB90's halogen heating distributes heat uniformly over the sample and speeds up the drying process, delivering fast and precise measurements.
Benefits:
- Halogen heating increases efficiency for faster results.
- Intuitive touchscreen menu offers step-by-step guidance for any application.
- Tool-free cleaning for easy maintenance.
Design Features:
Three shut-off criteria (manual, timed or auto), two drying profiles (standard and fast), storage up to two methods, user guide, 40°C to 200°C heating temperature range (1°C increments), 14 operational languages
Specifications:
Maximum capacity : 90.00 g
Pan diameter : 90.000 mm
Construction:
Metal base, ABS top housing, halogen heat source, stainless steel pan support, stainless steel pan handler, in-use cover.
Applications:
Percent Moisture Determination, Percent Moisture Regain Determination, Percent Solid Determination, and Weighing.
Outstanding Performance, Flexible Configuration and Reliable Results
The new OHAUS MB27 Basic Moisture Analyzer combines high quality and durable construction into a sleek, compact design. The MB27 offers dependable, accurate results for a wide variety of moisture analysis applications.
Benefits :
- With 0.01% 0.001g accuracy, the MB27 Moisture Analyzer is suitable for most applications.
- Halogen heating and dual weight-temperature calibration provide fast, reliable results.
- User-friendly touch-button design for easy operation.
Applications :
Percent Moisture Determination, Percent Solid Determination, and Weighing
Outstanding Performance, Flexible Configuration and Reliable Results
The MB25 provides precise moisture content determination at an unbeatable value. With a large backlit LCD display, standard RS232 port, 110g capacity with a readability of 0.005g/0.05% and halogen heating, the MB25 offers moisture analysis for any budget.
Applications
Percent Moisture Determination, Percent Solid Determination, and Weighing
Display
Backlit liquid crystal display (LCD)
Operation
Power cord (included)
Communication
RS232 (included)
Construction
Halogen heat source, ABS housing, metal pan support, metal pan handler, in-use cover
Design Features
3 shut off criteria (manual, timed or auto), 1 standard heating profile, 50° to 160° C heating range (5° C increments)
Outstanding Performance, Flexible Configuration and Reliable Results
The MB23 provides precise moisture content determination at an unbeatable value. With a large backlit LCD display, standard RS232 port, 110g capacity with a readability of 0.01 g/0.1%0.01 g/0.1%, and an non-glass infrared heating element, the MB23 offers moisture analysis for any budget.
Benefits :
- Glass-less infrared heating increases efficiency for faster results.
- User-friendly touch-button design for easy operation.
- Compact design suits any workspace.
Applications :
Percent Moisture Determination, Percent Solid Determination, and Weighing.