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Density meters for manual sample supply
The right decision for low sample volumes
For manual sample delivery via syringe, we offer two different density meter sets: For low sample volumes and high viscosity samples, we recommend Set 1 and for highly viscous and aggressive samples Set 2. While the sample is added, you can check for air bubbles by looking through the inspection glass. A suitable medium is injected for the cleaning until all sample residues have been dissolved and removed. The drying unit will then remove all liquid residues.
- Sample supply and cleaning via syringe
- Intuitive operation via touch-screen display
- Easy, menu-driven adjustment
- Pre-defined scales such as density, relative density, brix, alcohol and sulfuric acid concentration
- Compliance with GMP/GLP, 21 CFR Part 11, pharmakopoeias (USP, BP, JP, Ph. Eur.), FDA, ISO, HACCP, OIML, ASTM, ICUMSA, NIST
Typical applications
A comprehensive quality assurance covering the entire production
process is a must in any industrial sector. Density measurements are
frequently used for this purpose, especially in the pharmaceutical,
chemical, petrochemical as well as the food and beverage industry.
They allow the manufacturer to analyse raw materials, semi-finished
and finished products as well as the manufacturing steps in terms of a
number of factors.
Density can be used to identify substances, to determine their quality
or purity and to measure their concentration in binary or quasi-binary
mixtures. Substance conversions and reaction dynamics can also be
inferred from it. In combination with other methods such as
refractometry that measures the refractive index of substances, the
density measurement allows you to make precise statements about
the quality of each step of the production process.
Density meters based on the oscillating U-tube method are
characterized by high ease of use and are therefore used in particular
for continuous density measurement and for rapid routine
measurements with larger numbers of samples in laboratories.
More information about typical applications of density meters can be
found in our campus article about density meters Fields of application.
Model specifications
| DS7700 | DS7800 | |
|---|---|---|
| MEASUREMENT DATA | ||
| SCALES | Density [g/cm³] Relative Density Brix [%Brix] Concentration of alcohol [vol%] Concentration of sulphuric acid [wt%] User-defined |
|
| MEASUREMENT RANGE | 0–3 g/cm³ | |
| MEASUREMENT ACCURACY | ±0.001 g/cm³ | ±0.0001 g/cm³ |
| MEASUREMENT PERIOD | Typically: 1–3 minutes including temperature control | |
| SAMPLE VOLUME IN CASE OF MANUAL INJECTION | 0.9 ml | |
| AMBIENT TEMPERATURE | 10–40 °C | |
| TEMPERATURE RANGE | 10–40 °C | |
| ACCURACY OF TEMPERATURE CONTROL | ±0.02 °C | |
| METHODS | A practically unlimited number of methods can be set | |
| ADJUSTMENT | Automatic (menu-driven), with dried air and distilled water | |
| CONTENT SET 1 | ||
| DS7700-1 DS7800-1 |
Drying unit with 2/2-way valve Tygon tube set for use with Luer syringe: Air tube, waste tube, tube connections Luer Luer nozzle Luer syringes PE waste container with lid |
|
| CONTENT SET 2 | ||
| DS7700-2 DS7800-2 |
Drying unit with 2/2-way valve Tygon tube set for use with Luer syringe: Air tube, waste tube, tube connections Luer PTFE tube set for use with Luer syringe: Drain tube, waste tube, PEEK hollow screws PTFE splash guard Adaptor Olive/UNFa for sample discharge through Tygon tube via UNF nozzle Luer, UNF nozzle Luer syringes PE waste container with lid |
|
