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Density / Specific Gravity Meter | DA-650/ 645/ 640

   Hassle-free and safe measurement
   Easy check of measurement cell
   No air bubbles, no contamination
   Calibration at one temperature
   Easy data transfer
   Connection to barometer as an option


Beverages, foods, petroleum, pharmaceutical, alcoholic beverages, etc.

Technical Specifications:
Measurement Method
Resonant frequency oscillation
Measurement Range
0 - 3 g/cm3
Measurement Temperature Range
0 - 96℃
Density Accuracy
  • DA-650: ±2 x 10-5/gcm3 (±0.00002 g/cm3)
  • DA-645: ±5 x 10-5g/cm3 (±0.00005 g/cm3)
  • DA-640: ±1 x 10-4g/cm3 (±0.0001 g/cm3)
Density Repeatability
  • DA-650: SD 5 x 10-6g/cm3
  • DA-645: SD1 x 10-5g/cm3
  • DA-640: SD 5 x 10-5g/cm3
Temperature Accuracy
  • DA-650: ±0.02°C
  • DA-645: ±0.03°C
  • DA-640: ±0.05°C
Minimum Sample Required
  • ~1mL (Syringe)
  • ~2mL (Pump)
Measurement Time
  • 1 to 4 mins (Manual)
  • 2 to 10 mins (Auto)
  • 5.7-inch colour TFT LCD
  • 640 x 480
  • Shows density, specific gravity, oscillation frequency, temperature, concentration and other messages.
Viscosity Correction
  • Yes
  • Manual by syringe
  • Auto by peristaltic pump
  • Saves up to 100 different methods in built-in memory
  • Four modes of stability according to measurement accuracy and time
Density Auto Correction
  • Saves conversion table or formula at the desired temperatures according to your samples.
  • Temperature conversion table programmed according to ASTM standard for petroleum, petroleum products and lubricating oils.
Auto Conversion
  • Between concentration and density
  • Between temperature and density
  • Auto or manual calculation of mean value, SD and coefficient
  • Recalculation, data deletion
  • LAN, USB, RS232C
Data I/O
  • USB flash drive as data storage medium
  • Application Notes provided in USB flash drive
Wetted Materials
  • PTFE, borosilicate glass, SUS304


DCU-551 Auto Sampling Unit for 1 Sample

Download Brochure

(EN; 676 KB)
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