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Density/Specific Gravity Meter

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Hassle-free and safe measurement
Methods:
ASTM D1475, ASTM D5798, ASTM D1250, ASTM D4052, ASTM D4806, ASTM D5002, ASTM D5931, ISO 15212, ISO 12185, 

								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								ASTM D1475, ASTM D5798, ASTM D1250, ASTM D4052, ASTM D4806, ASTM D5002, ASTM D5931, 
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								
								ISO 15212, ISO 12185,
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Designed with assurance.

Just imagine the model where a weight is attached to a bar at the end and a bar is fixed on a wall as shown in the right figures. And when you hit the weight by a finger, the weight starts vibrating. Now you will find that the heavier the weight becomes, the slower it vibrates, and vice versa. This is because the weight will vibrate on the oscillation period specific to a substance in proportion to the mass of weight. This means that one can determine the density of a substance by measuring its oscillation period since density becomes proportional to the mass when the volume is constant, i.e. a fixed tube. Contact us with any questions about this electronic density/specific gravity meter.

The following accessories are recommended for purchase in sequential order (see eStore):

1st Year:
Filter
Silica Gel （500g）
Syringe 2mL x 2
Thermal Roll Paper P-58-30 （10 rolls）For Thermal Printer
Thermal Roll Paper STH-215 （10 rolls）For Thermal Printer
Printing Roll RP5860 4rolls Set For Dot Matrix Printer
Ribbon Cartridge IR-91B Black （5pcs/set For Dot Matrix Printer
2nd Year:
No spare parts are required
Remaining Parts:
Test standards     ASTM  D1250, D1475, D4052, D4806, D5002, D5798, D5931, ISO 12185, ISO 15212
Measuring method   Resonant frequency oscillation
Measurement Range   0 ~ 3 g/cm3
Temperature Range   0 ~ 96°C (32 ～ 204.8°F)
Accuracy   Density: 
Models DA-650 DA-650B: ±2×10-5 g/cm3 (0.00002 g/cm3) 
Models DA-645 DA-645B: ±5×10-5 g/cm3 (0.00005 g/cm3) 
Models DA-640 DA-640B: ±1×10-4 g/cm3 (0.0001 g/cm3) 
(Calibration with air and water required.)
Temp:  
Models DA-650 DA-650B: ±0.02 °C (±0.04 °F) 
Models DA-645 DA-645B: ±0.03 °C (±0.05 °F) 
Models DA-640 DA-640B: ±0.05 °C (±0.09 °F)
Repeatability*2   Density SD 5×10-6 g/cm3, SD 1×10-5 g/cm3, SD 5×10-5 g/cm3
Minimum Sample Required   1) Approx. 1 mL (Syringe) 
2) Approx. 2 mL (Pump)
Measurement Time   1) 1 to 4 mins (Manual) 
2) 2 to 10 mins (Auto)
Display    1) 5.7-inch colour TFT LCD; 640 x 480 
2) Shows density, specific gravity, oscillation frequency, temperature, concentration and other messages
Resolution   Density & Specific Gravity: 0.000001
Temperature: 0.001
Auto calibration   Density of water at each temperature, required for calibration of measuring cell, is pre-installed.
Sampling by   Syringe-type hand pump
Viscosity Correction   Models 
DA-650 – Yes
DA-650B – No
DA-645 D – Yes
A-645B – No
DA-640 – Yes
DA-640B – No
Sampling   1) Manual by syringe 
2) Auto by sampling pump*3
Method   Saves up to 100 different methods in built-in memory
Stability    Four modes of stability according to measurement accuracy and time
Density Auto Correction   1) Saves conversion table or formula at your desired temperatures according to your samples. 
2) Temperature conversion table preprogrammed according to ASTM standard for petroleum, petroleum products and lubricating oils
Auto Conversion   1) Between concentration and density 
2) Between temperature and density
Statistics   1) Auto or manual calculation of mean value, SD and coefficient 
2) Recalculation, data deletion
Interfaces   1) LAN: x 1; Personal computer (PC)
2) USB 1.1: x 2; USB flash drive, keyboard, barcode reader, Epson inkjet printer *4
3) Software: x 2; Dot Matrix Printer, Auto Clean and Sampling Unit, Multiple Sample Changer
Options   1) Printer: Thermal Printer, Dot Matrix Printer
2) Sampling Unit, Changer: DCU-551N/H, CHD-502N/H/C
3) Software: SOFT-CAP (Data Acquisition Software)
Data I/O   1) USB flash drive as data storage medium 
2) Application Notes provided in USB flash drive
Wetted Materials   PTFE, borosilicate glass, SUS304
Ambient Conditions   1) Temperature: 5 ~ 35 °C (41 ~ 95 °F)
2) Humidity: 85%RH or below (No condensation allowed.)
Power Supply   AC 100 ~ 240V; 50/60Hz (Comes with AC adapter.)
Power Consumption   40W (max. 120W, min. 20W) 
Dimensions   320 (W) x 365 (D) x 250 (H) mm (12.6 (W) x 14.4 (D) x 9.8 (H) inches) 
Weight   18 kg (39.7 lbs) 
Export Packing in Double Carton Box   G/W 21 kg (46.3 lbs); 540 (W) 480 (D) 460 (H) mm (21.3 (W) 18.9 (D) 18.1 (H) inches) (May vary in some cases.)

Brochure: KEM Density/Specific Gravity Meter

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