Semi-automatic sample feeding
These digital density meters for semi-automatic sample feeding work with the proven oscillating tube technology. For low to light viscosity samples, sample feeding and cleaning is semi-automatic with a peristaltic pump in these models. This means greater efficiency and greater safety when aggressive or hazardous substances are analyzed. The minimum sample volume of the transducer is less than 1 ml. The internal Peltier temperature control ensures a fast and stable sample temperature. Whether density, relative density, Brix, alcohol, sulfuric acid concentration or user-configured further scales, the possibilities of configuration are almost unlimited. The equipment is used in various areas of the pharmaceutical, chemical, petrochemical, food and beverage industries. They can be used to determine quality or purity and measure the concentration in binary mixtures.
Basic functions
- Suitable for semi-automatic and manual sample feeding
- Drying unit and peristaltic pump with high chemical resistance
- Direct connection to the DS7060 drying unit with 3/2-way valve, so semi-automatic cleaning and drying is possible without replugging hoses
- Intuitive operation via 7.0″ touchscreen display, 6 languages selectable
- Easy-to-understand, menu-guided adjustment
- Scales such as density, relative density, Brix, alcohol and sulfuric acid concentration are pre-installed; Other scales can be easily set up
- Compliance with GMP/GLP, 21 CFR Part 11, Pharmacopoeias (USP, BP, JP, Ph. Eur.),FDA, ISO, HACCP, OIML, ASTM, ICUMSA, NIST
| Specification | DS7000 Series Density Meters |
|---|---|
| Measuring range | 0–3 g/cm³ |
| Temperature control range | 10–40 °C |
| Measurement accuracy 1) | DS7700: ±0.001 g/cm³ DS7800: ±0.0001 g/cm³ |
| Temperature control accuracy | ±0.01 °C |
| Scales | Density (g/cm³), Relative Density, Custom (unlimited), Brix (%Brix), Alcohol Concentration (Vol.- %), sulfuric acid concentration (wt% |
| Resolution | DS7700: 0.001 g/cm³ DS7800: 0.0001 g/cm³ |
| Measurement time 2) | 3 seconds |
| Minimum sample volume |
0.9 ml |
| Pressure Range (Relative) | 0–9 bar |
| Temperature measurement accuracy | ±0.02 °C |
| Temperature measurement resolution | 0.01 °C |
| Methods & Users | Over 10000 methods possible |
| Adjustment | Automatic (menu-guided) air pressure sensor for adjustment of temperature-controlled calibration agents |
| Parts in contact with the sample | borosilicate glass, PTFE; (enables measurement of almost all liquids, emulsions & pastes) |
| Additional features | Audit Trail User Management Measured Value Stabilization Barometric Pressure Gauge |
| Operation | 7.0″ – capacitive touchscreen, 800 x 480 pixels, wipeable touchscreen, keyboard, mouse and/or Barcode scanner |
| Interfaces | 1x USB, 1x RS-232, 1x Ethernet, LIMS |
| Dimensions (W x H x D) | 220 mm x 220 mm x 430 mm |
| Weight | 5.3 kg |
| Operating voltage | 100–240 V, 47–63 Hz |
| Power consumption (metering mode) | 25 W |
| Power consumption (max.) | 120 W |
¹)Under normal conditions for density measurement (20 °C, 1013 hPa, 50 % relative humidity)
²) After temperature adjustment