The convenient, efficient, and reliable DA-800 series is KEM’s (Kyoto Electronics Manufacturing Co., Ltd.) 6th generation line of density/specific gravity meters, inheriting technology developed with market needs firmly in mind.
Features
The DA-800 series density meters measure the density/specific gravity of liquid samples by employing an oscillating sensor to determine resonant frequency. What’s more, the instruments can calculate sample concentration according to common industry standard formulas and tables.
The instruments have a built-in temperature stabilizing function, allowing you to measure density/specific gravity at your desired temperature.
Measurement can be conducted with as little as 1mL of sample (if injected manually), and in as fast as 10 seconds for a temperature-stabilized sample (when viscosity correction is disabled). All models in the DA-800 range come with viscosity correction functionality as standard.
Data Integrity (DI) support functions are provided as standard to help you maintain and manage your valuable data.
The interface has been enhanced to support a variety of uses, such as a separate structure for the operation unit (tablet/PC) and measurement unit, wireless LAN connection, and connection of multiple units.
The instrument has a space-saving design and can be integrated with a semiautomatic cleaning unit (optional). Also included is a camera for viewing inside the measurement cell, improving reliability, convenience, and efficiency.
・DI support functions are included as standard
The following features are included as a standard for Data Integrity.
・User authentication: Authentication by personal ID and password is possible.
・Authority management: It is possible to set authority, such as editing restrictions by personnel.
・Audit trail: It is possible to record operating history automatically.
・Digital signature: It is possible to perform electronic certification and digital signature by workflow.
・Back up/Restore/Archive: Automatic backup function in every optional period.
・Separate operation unit and measurement unit
・The measuring unit can be placed in a fume hood and operated remotely from outside.
・The unit can be operated remotely from a separate location via a wireless LAN connection (optional).
・Semiautomatic cleaning unit
・The semiautomatic cleaning unit (optional) is a space-saving design integrated into the measurement unit and enables automatic measurement, including drainage, washing, and drying.
1) KEM is the only manufacturer in Japan of standard liquids that conform to ISO17034, which is traceable to national standards.
2) KEM oscillation-type density meters are calibrated with international MRA*1-compliant and ISO17025-compliant JCSS*2 laboratory
density standards, which are traceable to international standards worldwide.
*1 Mutual Recognition Arrangement
*2 Japan Calibration Service System
3) High accuracy (DA-860: 3×10-6 g/cm3)
High repeatability (DA-860: 1×10-6 g/cm3)
High reproducibility (DA-860: 2×10-6 g/cm3)
- Equipped with a camera for viewing the measurement cell
1) Improved visibility of the measurement cell.
2) Image inside the measurement cell at the end of measurement can be saved to check the sample status.
1) The new stability mode developed by improving the conventional algorithm was added to shorten the measurement time.
2) The shortest measurement time is approx. 10 sec when the temperature is stable.
- Multiple management by a single operation unit
Multiple measurement units (max. four units) can be operated simultaneously by a single operation unit, and the data can be managed comprehensively. (optional)
Applications
The instrument can be used for liquid concentration and quality control in the following segments.
- Determination of transaction prices and taxes for crude oil and petroleum products (fuel oil and lubricants)
- Purity control and quality control of substances produced by chemicals (chemical products)
- Brix measurement is used for production process control and quality inspection in milk products, carbonated drinks, fruit drinks, etc.
- Measuring alcohol concentration and extracts in beer, sake, wine, etc.
- Brix concentration measurement of sugar solution, syrup solution, isomerized sugar solution, seasoning, etc.
- Pharmaceutical Densitometry Based on Pharmacopoeia
- Quality control of oils and fats such as vegetable oils and animal oils
- Quality control of flavors, chemicals, etc.
- Quality control of surface treatment agents such as etching solution and acid cleaning solution
Specifications
| Type |
Density/Specific Gravity Meter |
| Model |
DA-860/850/840 |
| Measurement Method |
Resonant frequency oscillation |
| Measurement Range |
0 to 3 g/cm3 |
| Temperature Range*1 |
0 to 100°C (32 to 212°F) |
| Accuracy |
Density*2: DA-860: 0.000003 g/cm3
DA-850: 0.00001 g/cm3
DA-840: 0.00005 g/cm3
Temperature: DA-860:±0.02℃ (±0.04° F)
DA-850:±0.03℃ (±0.05° F)
DA-840:±0.05℃ (±0.09° F) |
| Repeatability*2 |
Density: DA-860: 0.000001 g/cm3
DA-850: 0.000005 g/cm3
DA-840: 0.00005 g/cm3 |
| Reproducibility*2 |
Density: DA-860: 0.000002 g/cm3
DA-850: 0.000005 g/cm3
DA-840: 0.00005 g/cm3 |
| Interfaces |
LAN, USB, RS-232C |
| Power Supply |
AC100 to 240V; 50/ 60Hz (Comes with AC adapter) |
| Power Consumption |
40W (max. 120W, min.20W) |
| Dimensions |
295 (W) x 330 (D) x 255 (H) mm (11.6 (W) x 13.0 (D) x 10.0 (H) inches) |
| Weight |
19 kg (42 lbs) |
*1: The above accuracy is guaranteed in the 0 to 90°C temperature range with all series.
*2: According to ISO 5725, under ideal conditions.
Standards
ASTM D1250 Standard Guide for Use of the Petroleum Measurement Tables
ASTM D4052 Standard Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
ASTM D4806 Standard Specification for Denatured Fuel Ethanol for Blending with Gasolines for Use as Automotive Spark-Ignition Engine Fuel
ASTM D5002 Standard Test Method for Density, Relative Density, and API Gravity of Crude Oils by Digital Density Analyzer
ASTM D5931 Standard Test Method for Density and Relative Density of Engine Coolant Concentrates and Aqueous Engine Coolants by Digital Density Meter
European Pharmacopoeia / 2.2.5. RELATIVE DENSITY
ISO 12185 Crude petroleum and petroleum products — Determination of density — Oscillating U-tube method
ISO 15212-1 Oscillation-type density meters — Part 1: Laboratory instruments
JIS K0061 Test methods for density and relative density of chemical products
JIS K2249-1 Crude petroleum and petroleum products — Determination of density — Part 1: Oscillating U-tube method
JIS Z8804 Methods of measuring density and specific gravity of liquid
OIML R 22 Traceability and computerization of alcoholometric tables
United States Pharmacopeia–National Formulary / 31 <841> SPECIFIC GRAVITY
Software
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Data Acquisition Software
SOFT-CAP
Measurement results of the KEM instrument are directly downloaded to your personal computer for further data processing.
Option
-
JCSS Accredited Density Standard Liquid
Used to confirm the measurement accuracy of oscillation-type density/specific gravity meters in routine checks and calibrations.
KEM’s range of standards can be used for testing density in the range of 0.69***g/cm3 to 1.49***g/cm3 (at 20°C).
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Auto Sampler
AS-8030
The autosampler AS-8030 was developed to improve convenience and efficiency and meet market demands, inheriting reliability and technology established over many years by Kyoto Electronics Manufacturing Co., Ltd. (KEM).
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Multiple Sample Changer
CHD-502N
30 samples can be loaded for continuous measurements.
Pressurized sampling by pump.
Room temperature only.
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Multiple Sample Changer (High-temperature model)
CHD-502H
This equipment automates continuous measurement of viscous test materials by heating electrically to determine their density or specific gravity in sequence with your Density/specific gravity meter, performing rinsing and purge drying the measuring cell and sampling line.
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Auto Clean and Sampling Unit
DCU-551N
Automatic sample delivery and cleaning to measure single samples at room temperature.
Sample vial: 20mL.
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Auto Clean and Sampling Unit(High-temperature model)
DCU-551H
This equipment automates continuous measurement of viscous test materials by heating electrically to determine their density or specific gravity in sequence with a Density/specific gravity meter, performing rinsing and purge drying of the measuring cell and sampling line.
