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Compact Digital Density Meter:
DMA

+6
360°

+6
360°

Model:

The most advanced 4-digit density meter in this price segment
100 % consistent results due to repeatability of 0.00005 g/cm³
Covers ASTM D4052, ASTM D5002, ISO 12185, USP <841>, Ph. Eur. 2.25, JP 17 2.56, ChP(Vol IV) 0601, and FDA CFR 21 Part 11
Splash-proof, instrument self-diagnosis, no ventilation-related corrosion

Preconfigured systems
Specifications
Standards
Documents
Similar products
Complementary products

This product is part of our current starter kits. Find out more about our exclusive offer here: Cosmetics Starter Kit, Chemical Starter Kit, Tank Terminal Kit

Change for the better: DMA 501 and DMA 1001 are entry-level digital density meters which will revolutionize your work in the lab as well as your quality checks at the production line and storage facilities. Developed and manufactured by the world market leader, they rise to the challenge of speeding up the measurement of pasty, inhomogeneous, sedimenting, and particle-containing samples, and even aerosol sprays. DMA 501 and DMA 1001 are Anton Paar's answer to the demands of our customers in industry. They are ready for all samples and work reliably in harsh conditions.

Both instruments make digital density measurement accessible for everybody: First, they come with an unmatched price tag. Second, their guided user workflows, customizable screen layouts, and many support features such as the FillingCheck™ and condition monitoring ensure they can be operated after only minimum training.

All products are delivered with factory calibration. Use our ISO 17034-certified reference material for density to ensure your instrument is perfectly calibrated.

Benefits

Upgrade your density measurements and leave your time-intensive, breakage-prone hydrometers behind. Over 60 integrated conversion tables, 400 freely configurable methods, and memory for up to 5000 data logs set the benchmark in this segment. Set up the device once with all your frequently used tests and return to them again and again to immediately see a clear “pass/fail” result based on your defined acceptable upper and lower limits. As DMA 501/1001 requires only 1 mL sample volume you won’t waste valuable product. Both instruments thrive in harsh environments and automatically compensate for external influences such as humidity, altitude, and ambient temperature. When linked to AP Connect, our lab execution software, all data is stored in a single digital space and accessible from any network computer.

DMA 501 is your entry-ticket to 3-digit digital density measurement. Choose DMA 1001 for 4-digit accuracy and full compliance with international standards, including all relevant Pharmacopeia (US, EU, JP, CN), data integrity (21 CFR Part 11, GMP 4 annex 11&15, ALCOA+), and ASTM D4052 & D5002.

Designed for the harshest environments
Spill-proof design
Glove-friendly operation – even when wet

Challenge

Density checks are often carried out in cluttered and cramped workspaces by operators wearing wet gloves. Samples may be spilled on or around the instrument.

Solution

DMA 501/1001 has a splash-proof front display and a cover at the back which protects the interfaces and outlets from sample spills.

Your benefits

Uptime and product lifetime are maximized.

Results from approximately 1 mL sample
Low cost of analysis
Reduced waste (just 10 mL of solvent)

Challenge

When measuring the density of expensive samples the top priority is to use as little as possible.

Solution

DMA 501/1001 delivers results from approximately 1 mL of sample, requires 5 mL to 10 mL of solvent for cleaning, and reduces your environmental impact.

Your benefits

Waste less sample, save costs, and still get the results you need for production control.

Masters paste-like samples
Finish your measurement in one minute
Only 10 mL solvent required

Challenge

It is difficult and time-consuming to fill pasty samples (i.e. creams, lotions, ointments) into the pycnometer and the cleaning is time-intensive, too.

Solution

With DMA 501/1001 you fill pasty samples in minutes with the help of the pasty sample kit.

Your benefits

Using the syringe holder ensures bubble-free filling so you save 25 to 30 minutes per sample compared to using a pycnometer and the cleaning is fast and needs only a few milliliters of solvent each time.

Minimum contact when filling dangerous substances
Use the touchscreen wearing gloves
Approximately 1 mL sample required

Challenge

Monitoring the production process may include testing corrosive acids and bases. What is the best way to protect the operator?

Solution

Safety first: DMA 501 needs approximately 1 mL of sample and filling with the peristaltic pump reduces contact to a minimum. The touchscreen can be operated wearing gloves.

Your benefits

Operators have minimal contact with dangerous substances, especially when using a peristaltic pump (Xsample 200).

100 % correctly filled samples
No need to repeat measurements
Excellent results every time

Challenge

Viscous samples are tricky to fill with a syringe because bubbles occur easily. Is there a better way?

Solution

DMA 501/1001 has a built-in inspection camera (U‑View™) which gives you a clear picture of the filled-in sample, with zoom-in options and a backlight. FillingCheck™ automatically monitors filling and alerts you if a problem occurs.

Your benefits

100 % correctly filled samples. FillingCheck™ and U‑View™ reduce the likelihood of poor filling enormously so you do not have to repeat measurements and waste time and sample. No measuring errors due to bubbles in the sample.

Get a result for all samples, including:
• inhomogeneous, sedimenting, particle-containing samples
• pastes and even aerosol sprays.

Challenge

Liquid samples with particles or inhomogeneous samples are difficult to measure but the protocol requires a result.

Solution

With DMA 501/1001 you can measure the density of all samples you are able to fill and remove, without limitations.

Your benefits

Density results for all samples, including pasty, inhomogeneous, sedimenting, and particle-containing samples, and even aerosol sprays.

Full traceability to USP <841> and other Pharmacopeia
Audit trail
Full documentation of filling

Challenge

Measurements need to be compliant to USP <841> or other important Pharmacopeia (EU, JP, C) to be accepted in the target markets.

Solution

The measuring technology, accuracy, and repeatability provided by DMA 1001 are fully compliant with major Pharmacopeia (USP <841>, Ph.Eu. 2.2.5, JP 17 2.56, ChP (Vol IV) 0601).

DMA 1001 also provides full traceability and full documentation of each performed measurement: up to 5000 results as well as related potential filling warnings and camera images are stored in the instrument’s memory ready to be exported (USB, Ethernet, or RS232).

Your benefits

Compliance to all major Pharmacopeia allows you to sell your products to global markets.

Only available with:

DMA 1001

Test many samples quickly and get 100 % comparable results
Use the same test settings for the same product every time
Define excellent production SOPs

Challenge

When developing new formulations, many different variations of products need to be tested quickly and reliably using the same test protocol. When a product is released, reference density and specific gravity values need to be defined for production and final QC.

Solution

A simple customization of the dashboard of DMA 501/1001 gives you quick access to your defined settings for repetitive measurements. Reference values can be defined based on previously measured data.

Your benefits

Defining and reusing measurement settings means your results are 100 % comparable. You can rely on trustworthy and accurate reference values for use in production SOPs.

Concentration values shown immediately
No manual conversion: Saves you up to 10 min/measurement
Make pass/fail decisions right away

Challenge

When checking the quality and/or purity of raw material before use I need to get the concentration value immediately, even when the substance is highly concentrated.

Solution

DMA 501 has stored tables for automatically calculating % w/w and % v/v for e.g. ethanol, isopropanol, hydrogen peroxide, glycerol, and many more. The density is measured, automatically converted into concentration, and shown within seconds. Your own tables can be imported if you need custom quantities and calculations. Determining the concentration of components of hand sanitizers, for example, takes only 2 to 3 minutes per measurement.

Your benefits

No need to look up values in tables or calculate the concentration yourself. This saves up to 10 minutes per measurement and eliminates the risk of calculation errors. Quickly getting a concentration result means you make pass/fail decisions quickly and based on correct information.

Audit trail logs all activities
All your lab data is just a click away with AP Connect
Ready for audits and in case of complaints
Full 21 CFR part 11 compliance

Challenge

I need to document the test results for each product and all actions carried out on the instrument. The values need to be traceable.

Solution

With DMA 1001 you can assign roles and responsibilities and implement audit trail to log all activities and electronically sign the final results.

Your benefits

Absolute certainty in your results and data. You can certify the quality of your products for shipment and sales and have all the right information at hand for audits by regulatory authorities and in case of customer complaints.

Only available with:

DMA 1001

Immediately see if measured values are outside specifications
Take action to prevent costly production errors
Minimum training required for operation

Challenge

In production control, I need a quick and easy way to check that the current production batch is according to specifications.

Solution

On DMA 501/1001 you can define the acceptable range of density values and what counts as “out-of-spec”. After a measurement time of 2 to 3 minutes the density meter shows a clear “pass” or “fail” result.

Your benefits

Immediately see if measured values are outside specifications and lose no time in correcting production. Minimizes your wasted product.

0.1 % accuracy gives you complete control over filling
Never overfill, never underfill
Automated calculation = no human error

Challenge

The final filling of packages must meet legal requirements while still being cost-efficient and error-free.

Solution

The 3-digit accuracy of DMA 501 is sufficient for converting the weight and measured density into the filling volume. For each product filled you can set the lower and upper limits for acceptable volumes and see the value at a glance.

Your benefits

Never overfill or underfill again while meeting all regulations and requirements.

Verify the quality of a batch in less than 3 minutes
Prevent out-of-spec batches leaving the warehouse
Traceable documentation of results and final release signature

Challenge

As the final quality control step, we need to verify that each production batch is safe for patients before it can be shipped. Time is of the essence.

Solution

DMA 1001 flags out-of-spec batches immediately if they exceed the upper and lower limits you defined for the product.

The 21 CFR Part 11-compliant electronic signature function allows you to review, comment, and approve measured results.

The signature is stored with each data set and shown on the measurement report.

Your benefits

You can verify the quality in less than 3 minutes per batch. No out-of-spec product is released to the market. All measurements are traceably documented with a final release signature.

Only available with:

DMA 1001

One-click assessment
Clear “pass/fail” result every time
Forget calibrations and concentration tables

Challenge

We deal with many different substances every day and need to check that these delivered goods meet the specifications. I don’t have time for complicated setup, calibration, or concentration tables. What are my options?

Solution

Using DMA 1001 you can do a purity and anti-adulteration check in just one click. You can check the concentration of up to 400 different chemicals: fill the sample, wait 2 minutes for the result, and the job is done.

Your benefits

In-spec raw materials without adulteration are the key to 100 % consistent final product quality and customer satisfaction. Get these results in minutes and without compromises.

Only available with:

DMA 1001

Needs only 2 % of the sample required by manual methods
Save sample, reduce production costs
Monitored filling

Challenge

We deal with expensive raw materials, intermediate, and final products and using our current density method costs us up to 100 mL per measurement. Is there an alternative?

Solution

DMA 1001 makes it nearly impossible to waste sample. It needs approximately 1 mL of sample per measurement, much less than pycnometers or hydrometers. Technical features such as U-View™ (the built-in camera) and the automatic FillingCheck™ monitor the filling and document each filling with the result.

Your benefits

You save your expensive samples and reduce the cost of production.

Only available with:

DMA 1001

Maximized uptime
No repair costs
Maximum instrument lifetime, even in harsh industrial environments

Challenge

For our workspace we need a device that can cope with spills, knocks, and vapors in the air and still run reliably.

Solution

DMA 501 is splash-proof and protected from sample spills. Unlike other density devices, it works without needing ventilation so doesn’t suck contaminated air into the electronics.

Your benefits

With this ventilation-free density meter you get maximized uptime, have no repair costs, and maximum instrument lifetime, even in harsh industrial environments.

No human error
Minimum training required
Saves costs

Challenge

The results depend on the experience and skill of the operator in charge of analysis

Solution

DMA 501 and DMA 1001 are so easy to handle they don't need qualified personnel or sample preparation.

The user interface provides useful features like dashboards for each product to give quick access to settings for measurements you repeat often.

Your benefits

This easy-to-use device saves training costs, increases work efficiency, and eliminates human errors.

5-times faster measurement
Save solvents and reagents
Quick release of the final product
All data stored in a single digital space via AP Connect

Challenge

Titration is time-consuming and requires high amounts of solvents and reagents. What is the alternative?

Solution

DMA 501 is fast: it only takes 3 to 5 minutes to complete the analysis and there is no need to use solvents for the measurement.

Your benefits

Compared to using titration you save time and solvents. DMA 501 is 5 times faster than titration and saves you 100 mL solvents per measurement - and this reduces costs.

Protection for operators when filling dangerous substances
Glove-friendly touchscreen
Approximately 1 mL sample required

Challenge

We need to test corrosive acids and bases while upholding the highest of safety standards.

Solution

Operators have only minimum contact with hazardous samples when using DMA 501. Approximately 1 mL of sample are needed and filled via the peristaltic pump. The touchscreen can be operated wearing gloves.

Your benefits

You protect your operators from dangerous substances and still get the results you need.

Minimize mixups when loading and unloading
One device covers the full range
Virtually unbreakable, with 3-year warranty

Challenge

Mixups when loading and unloading fuels and lubes at the tank terminal are costly and therefore unacceptable. At the moment we are using hydrometers – is there a better way?

Solution

Whereas you need a number of different hydrometers to cover the whole range of samples, just one DMA 1001 will do the job. It covers the full range of fuels and lubes and withstands work in rugged environments. Hydrometers are prone to breakage whereas DMA 1001 is virtually unbreakable and comes with a 3-year warranty as proof of durability.

Your benefits

Minimizing mixups between product and storage location reduces the amount of wasted product and costly cleanups. One density meter will outlive many hundreds of hydrometers over the course of its working life.

Only available with:

DMA 1001

Zero errors converting to reference temperature
The correct result every time
According to API table 53 B or D (ASTM D1250)

Challenge

Using a hydrometer to measure the density of fuel or lubes at temperatures other than the reporting temperature and then converting the result to the reference temperature includes too many sources of error. Will going digital help?

Solution

For any kind of fuel or lube, DMA 1001 automatically compensates the density measured at elevated temperatures to the desired reference temperature according to API table 53 B or D.

Your benefits

Automatic conversion eliminates the need for manual calculations for all different product groups (fuels, lubes) and therefore reduces potential human calculation errors to zero.

Only available with:

DMA 1001

Prevent reclamations or complaints
Internationally acknowledged results
100 % certified use

Challenge

Some trading partners do not accept results from our density meter and raise concerns about the quality of the device as well as the calibration procedure. How can I counter this?

Solution

DMA 1001 can be calibrated according to ISO 17025 using traceable standards at a certified calibration laboratory. This 100 % certifies the use of DMA 1001 for volume-to-mass conversions in trade.

Your benefits

Calibration according to ISO 17025 paves the way for accurate and internationally acknowledged results. You benefit from 100 % traceability to the International System of Units (SI).

Only available with:

DMA 1001

Training takes around ten minutes
Results 100 % independent of the operator
Filling is monitored and documented

Challenge

When the density results deviate depending on the technician involved, retraining is required. Is there a way to avoid this?

Solution

DMA 1001 is so easy to operate even people with no dedicated lab training can handle it correctly. The standardized sample handling via syringe holder eliminates potential influences from different users, syringe types, or syringe filling volumes. Filling with the optional peristaltic pump ensures repeatable filling processes for samples with low viscosity. In addition, FillingCheck™ and U-View™ monitor the quality of filling, give alerts, and store a complete image for later verification.

Your benefits

Results are 100 % independent of the operator and only minimum training is required to operate the instrument.

Only available with:

DMA 1001

100 % compliance with ASTM D4052 & ISO 12185
Full traceability
The easy way to official product certification

Challenge

Official product certification according to defined product specifications requires measurements in full compliance with established test methods, e.g. ASTM D4052 and ISO 12185.

Solution

DMA 1001 has everything ASTM D4052 stipulates: 4-digits in measuring accuracy in density, full-range viscosity correction, and real-time bubble detection via FillingCheck™.

Your benefits

No more disputes about standard compliance. Peace of mind that you can measure density in-house – in full compliance and with 100 % traceability.

Only available with:

DMA 1001

Specifications

	DMA 501	DMA 1001
Patents	EP3012612B1, AT520632B1, US10145771B2	EP3012612B1, AT520632B1, US10145771B2
Measuring range	Density: 0 g/cm³ to 3 g/cm³ Pressure: 0 bar to 10 bar (0 psi to 145 psi)	Density: 0 g/cm³ to 3 g/cm³ Pressure: 0 bar to 10 bar (0 psi to 145 psi)
Measuring range	Temperature: 15 °C to 40 °C (59 °F to 104 °F)	Temperature: 15 °C to 60 °C (59 °F to 140 °F)
Repeatability, s.d.*	Density: 0.0002 g/cm³ Temperature: 0.1 °C (0.2 °F)	Density: 0.00005 g/cm³ Temperature: 0.02 °C (0.04 °F)
Reproducibility, s.d.*	Density: 0.0004 g/cm³	Density: 0.00007 g/cm³
Accuracy**	Density: 0.001 g/cm³	Density: 0.0001 g/cm³
Digital Resolution	Density: 0.0001 g/cm³ Temperature: 0.01 °C (0.01 °F)	Density: 0.00001 g/cm³ Temperature: 0.01 °C (0.01 °F)
U-View™	Yes	Yes
FillingCheck™	Yes	Yes
Full-range viscosity correction	Yes	Yes
Minimum sample volume	Approx. 1 mL	Approx. 1 mL
Integrated tables and functions	Density, Specific Gravity (SG), alcohol tables, sugar/extract tables, various acid/base tables, API functions	Density, Specific Gravity (SG), alcohol tables, sugar/extract tables, various acid/base tables, API functions
Wetted parts	Borosilicate glass, PTFE	Borosilicate glass, PTFE
Dimensions (L x W x H)	375 mm x 265 mm x 180 mm (14.8 in x 10.4 in x 7.0 in)	375 mm x 265 mm x 180 mm (14.8 in x 10.4 in x 7.0 in)
Weight	13.5 kg (29.8 lb)	13.5 kg (29.8 lb)
Power supply	AC 100 to 240 V; 47 to 63 Hz; DC 24V, 3A	AC 100 to 240 V; 47 to 63 Hz; DC 24V, 3A
Display	7 inches, TFT WVGA (800 x 480 Px); PCAP touchscreen	7 inches, TFT WVGA (800 x 480 Px); PCAP touchscreen
Controls	Touchscreen, optional keyboard, mouse, and bar code reader	Touchscreen, optional keyboard, mouse, and bar code reader
Communication interfaces	1 x Ethernet, 3 x USB, 1 x RS232	1 x Ethernet, 3 x USB, 1 x RS232
Internal storage	5000 measured results; 400 products	5000 measured results; 400 products
Other special functions	Integrated temperature and humidity sensor for intelligent condition monitoring Built-in pressure sensor for adjustments	Integrated temperature and humidity sensor for intelligent condition monitoring Built-in pressure sensor for adjustments Quick one-point water adjustment
Menu language	English, German, Chinese, Czech, French, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish	English, German, Chinese, Czech, French, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish
Available options & upgrades	Peristaltic pump Printers Aerosol filling adapter Filling kit for pasty samples ISO calibration AP Connect lab execution software	Peristaltic pump Printers Aerosol filling adapter Filling kit for pasty samples ISO calibration AP Connect lab execution software
Scope of supply	Compact density meter, power supply, power cable, waste vessel, density standard ultra-pure water, accessory kit (including syringes, hoses, adapters), instruction manual	Compact density meter, power supply, power cable, waste vessel, accessory kit (including syringes, hoses, adapters), instruction manual