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The Ohaus MB35 has been discontinued by Ohaus and replaced with the OHAUS MB90. All information displayed herein is for people researching the specifications on the MB35.

Ohaus MB35 moisture analyzer features a maximum sample capacity of 35g, with a readability of 0.002 grams and repeatability to 0.02% for samples 10 grams or greater. The intuitive software establishes a simple user interface with simple 3 key navigation for easy setup. The MB35 offers a straight forward one step testing procedure. The moisture balance LCD display shows % moisture, actual weight, and actual temperature and test time.

Ohaus MB35 is Ohaus' mid range moisture balance offers limited features compared to the Ohaus MB45. Fast halogen element provides uniform infrared heating up to 160ºC in less than 1 minute. Analytical performance, with a readability of 2 mg, 0.05% moisture and 35 gram capacity. The Ohaus MB35 moisture analyzer display shows % moisture, time, temperature, weight and none of the advance features of the Ohaus MB45 moisture balance.

Operating the MB35 moisture analyzer is easy once the moisture balance parameters have been set, moisture determinations can be made very simply. There are three simple steps to perform:

  • Setting the drying temperature (50°C to 160°C in 5° increments.)
  • Setting the drying time (Automatic or Timed)
  • Gathering and preparing the sample. (Keep in mind the importance of attaining a proper composite sample that is homogeneous and the even distribution of the sample on the moisture pan. No mounds or piles.)

If you already own the Ohaus MB35 water content analyzer and you are looking for the consumable moisture pans you can purchase a box of 500 aluminum moisture pans for an extremely low price compared to what Ohaus charges for these moisture pans if you bought them from Ohaus Corporation directly.

We also sell moisture balance filter pads used to distribute the heat better, prevents skinning over (this is when bubbles form). Filter pads are really a must when testing samples containing large amounts of sugary substances since they tend to caramelize. To prevent this ensure that a thin and uniform layer is applied covered with a glass fiber filter and a moderate temperature selected to improve accurate and moisture content readings.

For test samples that are pasty or contain fat or substances that melt the use of a glass fiber filter is advantageous to increase the surface area of the sample. In addition, moisture analysis of substances which form crusts (e.g. glucose syrup) or pasty substances (e.g. butter) can be considerably improved by mixing with quartz sand. You can purchase a box of 200 filter pads or buy a case of 4000 filter pads to save even more money.

Many people call us looking for the absolute best value Precision Weighing Balances can offer in a moisture balance for simple moisture determination applications like sludge wastewater applications and the answer again and again is the A&D ML-50. When price is the #1 factor and you want a quality moisture determination instrument to 1% moisture content determination then you should review the ML50 moisture balance HERE.

Before you buy any moisture balance be sure to see the Sartorius MA37 moisture analyzer. The Sartorius MA37 heating element is metal tubular and this provides more of an oven effect providing intense heat throughout the complete heating chamber thus allowing better drying to all sides of the sample (top, bottom and sides). Although the metal tubular design isn't the fastest design for drying to run the percent moisture test since metal tubular takes longer to heat up over a halogen bulb we feel it is the best method to determine moisture.

If you have any questions about your moisture application give us a call M-F 9-5 EST at 978-521-7095 and one of our experts can assist you in resolving your moisture determination conundrum.

Ohaus MB35 moisture measurement

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Brand Model Capacity Readability
Ohaus MB35 moisture measurement 35 g 0.005 g
Add. Features
  • Grams
  • RS-232c
Comparable Scales

Ohaus MB45 Moisture Analyzer - $4365.00

Ohaus Moisture analyzer MB25 - $3284.00

Ohaus MB23 Moisture Tester - $2550.00

Sartorius moisture balance MA150FDA - $4199.00

A&D Weighing ML50 Moisture Analyzer - $1999.00

Sartorius MA35 Moisture Analyzer - $2150.00

Sartorius Moisture Balance MA35-FDA - $2450.00

A&D Weighing MX-50 Moisture Balance - $2795.00

A&D Weighing MF-50 Moisture Analyzer - $2260.00

Sartorius Moisture tester for plastics MA100H - $7367.00

Sartorius MA160 moisture analyzer - $3939.75

A&D Weighing MS-70 Moisture Content Tester - $4478.00

Used MA35 moisture analyzer - $2020.00

Sartorius MA37 moisture balance - $3153.50

Mettler Toledo HB43 Moisture Sensor - $4456.00

Mettler Toledo HG63P Moisture Content - $6223.00

Adam Equipment PMB53 moisture tester - $2205.75

Adam Equipment PMB202 moisture analyzer - $2290.75
MSRP: $3824.00
YOU PAY $3824.00
Moisture balance
OHAUS MB-35 Moisture Analyzer Specifications
PWB Discount Price Ohaus Moisture Analyzer $3250.40
The Ohaus MB35 has been discontinued by Ohaus and replaced with the OHAUS MB90 moisture analyzer.
See the new Sartorius MA37 moisture analyzer. The MA37 offer a more intuitive display then the Ohaus MB35 and best of all because of our buying volume on the Sartorius MA37 we can offer you the MA37 for less than the Ohaus MB35. If you want to export data for the Ohaus MB35 you'll need to buy optional software like Winwedge. Buy the Sartorius MA37 and you can direct data transfer to Microsoft Windows programs without additional software.
Capacity (g) 35g
Readability (g) 0.005g
(Std dev) (g)
0.18% (3g sample)
0.05% (10g sample)
Moisture Range 0.05% to 100%
Temp. Setting 50°C to 160°C
Temp Increment Setting 5°C intervals
Bidirectional RS-232 with GLP/GMP
1-120 min.
Heater Type
Temp range 50° to 104°C in 5°C increments
120 VAC 50/60 Hz
Tare range
To capacity by subtraction
Operating temperature range
50° to 104°F / 10° to 40°C
Calibration Weight
20 gram ASTM Class 1
Display type
128 x 64 pixel graphical backlit LCD display
Displays % moisture, time, temperature, weight
Pan Size (in/mm)
3.5 / 90
Dimensions (WxHxD) (in/cm)
7.5 x 6 x 14 / 19 x 15.2 x 36
Shipping wt. (lb/kg)
14.1 / 6.4
Download the Instruction Manual now download MB35 moisture balance manual The instruction manual contains detail information regarding calibration, additional features and keypad functions. This manual is truly worth downloading before .
Review additional technical specs & features here

We always recommend people purchase moisture pans that are oil free Aluminum and provide even temperature across the pan. If you ever need additional weighing pans we sell them in bulk, 500 pans to a case.

Some people believe that they can reuse the pans but this is never recommended. Although you might clean off the pan the stains leave material from your last test or even moisture when you attempted to clean the pan. Others believe they can use a piece of aluminum foil paper but this isn't always smooth and creates crinkles and thus uneven drying. Always, always, always use a new moisture pan for each test.

Glass fiber pads distribute the heat better, prevents skinning over (this is when bubbles form).

The fiber pads are binder-free borosilicate glass fiber and therefore contain no binders (no foreign materials) or inert.

Slurry samples or when test times are long the sample skins over, bubbles up or splatters when the moisture testing is running, we recommend using filter pads with the moisture pans.

For testing liquids the pads are a must. Place the moisture pan and pad on the moisture balance, adjust the setting time to zero so the Ohaus moisture analyzer is in auto mode and run the test with no sample on the pad. Many times the fiber pads can hold up to 2% moisture and this preps the pan and fiber pad to be moisture free and only takes typically 1 minute with the MB35 moisture analyzer.

Now with the dry filter pads if you are working with a liquidity substance 70% water or more place the sample with an eye dropper, syringe or pipette is a spiral pattern and then cover with the filter pad.

For slurries and anything with bumps and chucks like corn slurry we recommend using two pads making like a sandwich (bottom pad - test sample - top pad). Place the pan on the moisture balance and then place one pad on your table and then using a syringe or spoon apply the sample to the pad in a spiral pattern and now cover with a second pad. Slightly squish the sandwich you just made to break up any chucks and the filter pads will absorb the moisture. Now place the two pads with your sample sandwiched in-between and run your test. You'll find more consistent and repeatable rest using the two pads.
Warning - Moisture balances should not be used on any volatile organic sample with flash points. Even a MSDS rating of 1. Samples with low flask points like Acetaldehyde -38°C or MEK -4°C should not be used with the Ohaus MB35 Moisture Balance and maybe you should look at Karl Fisher as an alternative.

Although you might presently perform analysis with an oven on these samples the ovens typically have ventilation and a much larger cavity than the typical moisture balance that operates on the principles of TGA. In addition, with most moisture balances there is no ventilation so all the fumes remain inside the hood of the moisture balance. We strongly recommend you consult with a safety specialist always prior to using any moisture balances for your safety.


Ohaus MB35 Moisture Balance

select any of the options to the right and then the "BUY HERE" image

Ohaus MB35 Moisture Balance


Temperature calibration kit $530.00
Pads, glass fiber (200 pads) $93.00
Filter glass fiber pad [Case of 4000] $582.06
Aluminum moisture pan, 1 box of 50 pans $27.00
Aluminum moisture pan, 10 boxes of 50 pans $164.84
Reusable sample pans (qty 3) $184.00
RS232 Cable, PC 9 Pin $176.00
20g Calibration Weight Class 1 with NVLAP (± 0.074 mg) $125.00
Cal-Paks 20g, 2g, 20mg Class 1 with NVLAP $281.00
30g Calibration Weight Class 1 with NVLAP (± 0.074 mg) $125.00
100g ASTM Class 1 (± 0.25 mg) with NVLAP Cert $145.00
Cal-Paks 50g, 5g, and 200mg Class 1 with NVLAP $281.00
Ohaus 80251992 Thermal Printer $690.00
SF40A Printer Impact $902.00
WinWedge Pro Software Wedge for Windows $775.00


Select from 6 Ohaus Moisture Analyzers to meet your weighing needs

Cap (g) x Read (g)

Heater Price
OHAUS MB23 110 g x 0.01 g Infrared Coil $2550.00
OHAUS MB25 110 g x 0.005 g Halogen Bulb $2791.40
OHAUS MB35 35 g x 0.005 g Halogen Bulb $3250.40
OHAUS MB45 45 g x 0.001 g Halogen Bulb $3710.25
OHAUS MB90 90 g x 0.001 g Halogen Bulb $3417.00
OHAUS MB120 120 g x 0.001 g Halogen Bulb $4339.25

moisture content analyzer
Sartorius MA35 shown with disposable moisture pans & filter pads
solids determination machine

Have you seen the new Sartorius MA37 moisture analyzer? The MA37 offers a touchscreen display that is more intuitive for some people than the MB35. Watch the video above and learn how the MA37 can be configured, see the display and how to access the parameter configuration. You'll see all the steps to run a moisture test on the MA37.
Have you seen the new Sartorius MA160 moisture analyzer? The MA160 offers a touchscreen display that is more intuitive for some people than the MB35. Watch the video above and learn how the MA160 can be configured, see the display and how to access the parameter configuration. You'll see all the steps to run a moisture test on the MA160. The Sartorius MA160 moisture analyzer has a "Software Assistant Function" to start the development of your our test method parameters. See step by step how to test ketchup
Watch this video above as we highlight in this video the differences between the MA37 and MA160 since briefly looking at the units they seem the same but there are major differences.

So both the MA37 and MA160 deliver readability to 1 milligram. The average repeatability is ± 0.2% when you are using an initial sample weighing from 1-5 grams and when using a initial sample greater than 5 grams the repeatability is 0.05%. We always recommend a sample at least 5 grams since anything smaller is typically difficult to attain a good representative sample. Neither unit is recommended for plastic resin applications.

So what are the differences??

Although the infrared heating element looks similar the MA37 maximum output is 480W while the MA160 is 600W. More watts shortens time to attain temperature setting. The heating elements differ from a different alloy mix for the metal tubular heating element and Sartorius calls the MA160 element AURI.

MA37 has only the ability to save one (1) method while the MA160 can save up to 100 methods.

MA160 comes with "Sample Tongs" while it is an accessory for the MA37.

MA160 includes 3 ReproEasy Pads while no pads are included with the MA37. The ReproEasy Pads are used to verify the moisture analyzer is functioning within manufacturer specifications. The pad is a onetime use consumable item and additional pads are sold in packages of 10 pads. We recommend you download the user manual and reference the section "MA Performance Test" to learn more about this test feature available on both the MA37 and MA160. This is a great alternative to testing your moisture analyzer against sodium tartrate dihyrate. Using sodium tartrate dihyrate requires you to operate at 160C to release the chemically bonded two water molecules from Sodium Tartrate. The ReproEasy Pad you can run a performance test at 70C, 100C or 130C whichever temperature is closer to your actual sample you test normally.

The MA160 has a SD memory card slot verses the MA37 just has a dummy slot. You can import/export methods to the SD card. This is a nice feature for companies that implement "build alike" or create SOP implemented globally throughout their plants. One plant can develop the method for each different sample, download those methods to the SD card and the e-mail the file to other plants where they can copy the file to the SD card and then import them into the MA160 located in other locations. In the "Calibration Report" menu you can access the most recent calibration reports for the MA Performance Tests and external calibration adjustments up to 99 reports are saved per day. Calibration reports older than 30 days are automatically deleted. Again this information can be downloaded to the SD Card and the file e-mailed to the quality control or regulatory officer to meet compliance reporting requirements.

Another benefit purchasing the MA160 because it has the SD card is the "Results" menu. The analysis results can be viewed, exported or deleted. If you export the data to the SD card it is saved as an XML file and can be viewed with a web browser like Internet Explorer or Firefox. This is a great feature especially for paperless operations or if you need to print results and don't have a Sartorius YDP30 or YDP40 printer. All you need to do is save results to the SD card, open the file on your PC within a web browser and use the printer connected to your computer.

I would say the greatest feature the MA160 has that isn't available on the MA37 is "Method Assistant". Method Assistant helps you develop and refine methods in 3 easy steps. Its quick and ensures that all relevant parameters have been included for your moisture determination test. The Assistant prompts you to configure all relevant parameters, provides a practical range and prevents you entering implausible data. If you are running lots of different samples and not sure on the optimum temperature, whether you should use filter pad(s) The intuitive wizard asks you whether your sample consistency is a solid, fluid or paste. Method Assistant even asks if the sample is organic, inorganic or unknown.

Finally there is a 'Protective Mode" menu that is only available on the MA160. This allows you to password protect the MA160 moisture analyzer to ensure only authorized persons can make changes to the system settings. This video is a must see.

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