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2 DMA 501 / DMA 1001 – An Overview
The compact DMA 501 / DMA 1001 density meter
measures the density of liquid samples by use of the
oscillating U-tube method that has been first intro-
duced on the market by Anton Paar in 1967. It
combines high precision with easy operation and
robust design. The instrument will cope with almost
any sample that you can fill and clean.
Accurate results in the shape required
The instrument corrects viscosity-related errors
automatically. An integrated Pt 100 platinum ther-
mometer together with Peltier elements provide an
extremely precise thermostatting of the sample.
The density value can be automatically converted
into concentration values for numerous generic user
products (already factory-programmed).
Precise sample filling
Accurate and repeatable results strongly depend on
bubble-free filling ensured by the peristaltic pump
optionally integrated in the instrument.
FillingCheck™ automatically detects gas bubbles in
the measuring cell by an advanced analysis of its
oscillation pattern, and will generate a warning
message in that case. Additionally you can visually
inspect the measuring cell on the real-time camera
image (U-View™).
Intuitive user interface
Operate the instrument via the touchscreen user
interface giving you the look and feel of a smart-
phone. If you prefer, you can optionally connect an
external keyboard or mouse and a barcode reader.
E15IB001EN-N
2 DMA 501 / DMA 1001 – An Overview
Data export/printouts
You can export all measured data as a PDF or CSV
file onto any connected storage device. Data can be
printed via USB, network, or serial port.
2.1 Intended Use of the Instrument
DMA 501 / DMA 1001 is capable of measuring
nearly every liquid, independent of its composition
and viscosity.
Typical samples include soft drinks, various types of
oil, acids and bases, infusion solutions, pastes and
creams from applications as diverse as petrochem-
icals, food & beverages, chemicals, pharmaceuti-
cals and cosmetics.
Restrictions
Do not leave bases longer than necessary in the
measuring cell, because the glass of the measuring
cell is susceptible to attack by alkaline liquids.
Exclusions
•
The instrument cannot measure solids.
•
Do not measure hydrofluoric acid as it attacks
the glass of the measuring cell.
•
Do not fill substances that may harden inside
the measuring cell.
•
Do not mix substances inside the measuring
cell if these substances may react chemically.
•
Do not use mechanical action for cleaning the
measuring cell.
IMPORTANT: Always check if recommendations of
the instrument (e.g. from the instrument's intelligent
condition monitoring) are reasonable.
7
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Questions and answers
what if after clean and measurement of distilled water desity it show a density higher than normal
If the Anton Paar DMA 501 shows a density higher than normal after measuring distilled water, follow these steps:
1. Perform a Density Adjustment: If a check has failed and corrective actions have not helped, conduct a density adjustment.
2. Use Freshly Degassed Ultra-Pure Water: Ensure that the calibration or check is done with the correct medium.
3. Check the Measuring Cell: Use the built-in camera to confirm that the measuring cell is clean and free of bubbles.
4. Perform an Air/Water Density Adjustment: If the instrument has been relocated to a place with a temperature difference of more than 10°C, an air/water adjustment is recommended.
If the issue persists, further troubleshooting or contacting an Anton Paar representative may be necessary.
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Have a problem with my DMA 1001, after reading distilled water fir rincing i no longer have 0.00 value as brix and the density of distilled water higner than normal
If the Anton Paar DMA 501 shows a Brix value higher than 0.00 and an abnormal density reading after rinsing with distilled water, possible causes include:
1. Residual Contamination: The measuring cell may still contain residues from the previous sample, affecting the reading.
2. Air Bubbles: Air bubbles in the measuring cell can interfere with the measurement and cause incorrect density readings.
3. Improper Rinsing: If distilled water is not properly degassed or if the cell is not thoroughly rinsed, impurities or trapped gases may affect the measurement.
4. Incomplete Drying: If the measuring cell has not fully dried after rinsing, remaining liquid can dilute the sample and alter the reading.
5. Adjustment Issues: If the device was not properly adjusted using dry air and freshly degassed ultra-pure water, the measurements may be inaccurate.
To resolve this, ensure proper rinsing, use degassed water, dry the cell completely, and verify calibration adjustments.
This answer is automatically generated