The OHAUS MB62 is a professional moisture analyzer designed for laboratories and QA/QC teams that need more method flexibility, sample management, and result storage than a basic routine moisture analyzer.
It combines a 90 g precision balance with 0.001 g readability and a responsive carbon-fibre infrared heating system with a programmable temperature range from 40°C to 200°C.
The MB62 is particularly useful when a laboratory tests multiple products, ingredients, raw materials, or production samples. It can store up to 20 drying methods and 100 results, provides four drying profiles, 10 sample IDs, seven shutoff options, password-protected administrative functions, and RS232/USB communication.
For Canadian food and beverage plants, agricultural and feed laboratories, industrial QA/QC departments, environmental facilities, research groups, and production operations, the MB62 provides a practical balance between method flexibility, repeatability, operator simplicity, and data management.
The MB62 is positioned between a basic routine moisture analyzer and a higher-level touchscreen system. It is especially useful for laboratories that have several recurring sample types and want to standardize how each one is tested.
The MB62 is best understood as the flexible multi-method model in the current OHAUS moisture analyzer range.
| Model | Best Fit | Capacity / Readability | Heating | Methods | Results |
| MB32 | Routine moisture testing | 90 g / 0.001 g | Carbon fibre 40–180°C |
2 | 1 |
| MB62 | Multi-product and flexible method testing | 90 g / 0.001 g | Carbon fibre 40–200°C |
20 | 100 |
| MB92 | Higher-performance testing and touchscreen operation | 90 g / 0.001 g | Carbon fibre 40–200°C |
20 | 200 |
| MB120 | Flagship method development and high-volume data management | 120 g / 0.001 g | Halogen 40–230°C |
100 | 1,000 |
Choose the MB32 if you only need one or two straightforward routine methods.
Choose the MB62 if you test multiple products and need more method control, stored results, sample IDs, and temperatures up to 200°C.
Consider the MB92 when touchscreen operation, greater result storage, USB host connectivity, or higher published repeatability are important.
Consider the MB120 when you need 120 g capacity, temperatures up to 230°C, SmartGuide method development, up to 100 stored methods, and substantially greater result storage.
| Laboratory Challenge | How the MB62 Helps |
| Different products require different drying conditions | Store up to 20 individual drying methods with different temperatures, profiles, and endpoints. |
| Operators repeatedly enter the same settings | Stored methods help standardize recurring procedures and reduce repeated manual setup. |
| A sample does not dry well at one constant temperature | Ramp and Step programs allow more controlled multi-stage drying. |
| Oven drying takes too long for routine process decisions | Integrated heating and continuous weighing can provide faster feedback for suitable validated applications. |
| Recent results need to be reviewed | Up to 100 results can be retained on the analyzer. |
| Important settings should not be changed casually | Password-controlled administrative functions help protect methods and system settings. |
The MB62 can be used to develop rapid moisture or percent-solids procedures for suitable ingredients, powders, grains, bakery products, intermediate materials, and finished-product samples.
The ability to store separate methods is particularly useful when a facility tests several products that require different sample weights, temperatures, or drying profiles.
Suitable agricultural materials such as grains, feed ingredients, seeds, powders, and soil-related samples can be evaluated where a thermogravimetric loss-on-drying method is appropriate and validated for the intended purpose.
The MB62 can be useful for moisture or percent-solids measurements on suitable sludge, residue, or process samples when a laboratory-developed or validated procedure allows thermogravimetric analysis.
The MB62 should not automatically be described as a direct Total Suspended Solids (TSS) analyzer. Standard TSS procedures typically require filtration of a measured water sample followed by drying and weighing the retained residue. Follow the required regulatory or laboratory method when compliance testing is involved.
The MB62 can support moisture or loss-on-drying checks for suitable powders, resins, ingredients, formulations, and raw materials where thermogravimetric testing is appropriate.
If a sample contains solvents or other volatile components in addition to water, remember that a moisture analyzer measures mass loss during heating. The result may therefore include volatile material other than water.
The 40°C to 200°C temperature range together with Standard, Fast, Ramp, and Step drying programs gives researchers flexibility to develop procedures for samples with different drying behaviours.
Stored methods, sample IDs, result memory, and visual status indication make the MB62 practical for recurring production-floor or near-line quality-control checks where a validated rapid moisture result is needed.
The MB62 uses thermogravimetric analysis. The instrument first records the initial sample weight and then heats the sample while continuously monitoring its mass.
As moisture and other volatile material leave the sample, the measured weight decreases. The MB62 calculates the result from the difference between the starting and final mass.
Results can be displayed as moisture content, dry content / percent solids, moisture regain, weight, time, and temperature.
If the sample contains volatile compounds other than water, those compounds may also be driven off during heating and contribute to the measured mass loss. Method development should consider the chemistry of the sample as well as the required reporting method.
Standard mode heats the sample to the selected target temperature and maintains that temperature until the selected shutoff condition is reached.
Fast drying applies a stronger initial heating stage before returning toward the programmed target temperature. It can reduce test time for suitable samples that tolerate a more aggressive heating profile.
Ramp mode gradually increases temperature over a defined period. This can be useful for temperature-sensitive samples or materials that may form a crust, caramelize, or decompose if heated too aggressively.
Step mode allows two or three temperature stages to be programmed with separate endpoint conditions. It is useful when a sample benefits from different drying conditions during different stages of the test.
The MB62 has a maximum weighing capacity of 90 g and requires a minimum starting weight of approximately 0.5 g.
There is no single ideal sample weight for every material. OHAUS publishes repeatability values using both 3 g and 10 g samples, but the best sample size depends on the product, expected moisture level, drying behaviour, desired analysis time, and required repeatability.
Samples should normally be representative and distributed in a thin, even layer across the 90 mm sample pan. Excessively thick or uneven samples can take longer to dry and may produce different drying behaviour between the surface and centre.
Glass-fibre pads can help with suitable liquids, pastes, fat-containing products, melting samples, skin-forming materials, and other samples that benefit from increased surface area.
OHAUS lists MB62 repeatability at 0.10% with a 3 g sample and 0.018% with a 10 g sample under stated test conditions. A larger sample may improve repeatability in some applications, but it can also increase drying time. Method development should balance sample size, layer thickness, analysis time, and the precision required.
| Model | OHAUS MB62 |
| OHAUS Part Number – 110 V | 30971929 |
| Maximum Capacity | 90 g |
| Minimum Start Weight | 0.5 g |
| Weight Readability | 0.001 g / 1 mg |
| Moisture Readability | 0.01% |
| Repeatability | 0.10% with 3 g sample; 0.018% with 10 g sample |
| Recommended Moisture Content | 0.5% to 100% |
| Moisture Range | 0.01% to 100%; up to 1000% in regain mode |
| Heating Element | Carbon-fibre infrared heater |
| Temperature Range | 40°C to 200°C in 1°C increments |
| Drying Profiles | Standard, Fast, Ramp, Step |
| Stored Methods | 20 |
| Stored Results | 100 |
| Sample IDs | 10 |
| Shutoff Criteria | 5 automatic, timed, manual |
| Display | 5 in. LCD with second-line display |
| Displayed Results | MC%, DC%, RG%, time, temperature, weight and method number |
| Communication | RS232, USB device |
| Weight Adjustment | External 50 g mass |
| Temperature Adjustment | 100°C and 160°C |
| Pan Diameter | 90 mm / 3.5 in. |
| Dimensions | 210 x 138 x 352 mm / 8.3 x 5.4 x 13.9 in. |
| Net Weight | 4.3 kg / 9.5 lb |
| Power | 120 VAC, 50/60 Hz – Canadian / North American model |
OHAUS designed its carbon-fibre infrared heating system to support efficient heating, shorter analysis times, lower power consumption, and consistent moisture results. Actual test time still depends on the sample, sample size, temperature, drying profile, and endpoint.
The MB62 requires a minimum starting sample weight of approximately 0.5 g and has a maximum capacity of 90 g. The ideal working sample weight depends on the material and method.
There is no single ideal weight for every product. OHAUS publishes repeatability of 0.10% using a 3 g sample and 0.018% using a 10 g sample. Larger samples can improve repeatability in some applications but may also increase drying time.
The MB62 can store up to 20 methods, making it useful for facilities that routinely test several products or sample types.
Up to 100 results can be stored on the instrument.
Both use carbon-fibre heating and have 90 g capacity with 0.001 g readability. The MB62 adds a 200°C maximum temperature, four drying profiles, 20 stored methods, 100 stored results, sample IDs, more shutoff criteria, password protection, and stronger published repeatability.
Both provide 90 g capacity, 0.001 g readability, carbon-fibre heating, a 40°C to 200°C range, four drying profiles, and 20 stored methods. The MB92 adds higher published repeatability, 200 stored results, a colour touchscreen, USB host connectivity, and additional data-management capability.
The MB120 is a different flagship platform with 120 g capacity, halogen heating, temperatures up to 230°C, SmartGuide method development, storage for up to 100 methods, and up to 1,000 results. The MB62 is a simpler 90 g system aimed at flexible routine and professional QA/QC moisture testing.
It can replace many older systems from a workflow perspective, but existing drying methods should be revalidated. Different heating technologies, chamber designs, sample sizes, and shutoff criteria can produce different results even when the programmed temperature appears similar.
It can provide much faster results for suitable samples, but a moisture-analyzer method should be compared with the laboratory's accepted reference procedure before replacing an established oven method.
The MB62 can be used for moisture or percent-solids work on suitable sludge or residue samples when the procedure permits it. It should not automatically be substituted for a prescribed TSS method, because standard TSS procedures generally require filtration and drying of the retained residue.
Suitable liquids and pastes can be tested when an appropriate method is developed. Glass-fibre pads can help spread the sample over a larger area and promote more uniform drying.
No. The MB62 measures mass lost during heating. If a sample contains solvents or other volatile compounds, those materials may also contribute to the measured loss.
Yes. The MB62 includes RS232 and USB device communication for compatible data-output and printing workflows.
Cambridge Environmental Products supplies the OHAUS MB62 in Canada with CAD pricing, sample pans, glass-fibre pads, calibration accessories, and support for Canadian food and beverage, agriculture, environmental, industrial QA/QC, research, and production laboratories.
Cambridge Environmental Products supplies OHAUS moisture analyzers, accessories, consumables, and moisture-testing equipment across Canada.
If you are replacing an oven method or another moisture analyzer, tell us your sample type, expected moisture level, current drying temperature, typical sample size, required test time, number of products tested, and documentation requirements.
The MB62 is especially well suited to laboratories that need more than basic routine testing but do not require the larger method library, touchscreen workflow, or advanced data-management capabilities of higher-level models.
Send Cambridge your current moisture-testing method and sample information and we can help determine which OHAUS moisture analyzer best fits the application.
