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Density meter:
DMA 4500 M

  • Measure density and concentration at 5-digit accuracy
  • Fast responding and accurate FillingCheck™
  • Modular measurement extensions and automation options
  • Uses the patented Pulsed Excitation Method
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Part number: 153059
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For thousands of users around the world, density measurement means DMA 4500 M. These density meters are in use day in, day out, wherever reliable and accurate 5-digit density values are required.

To achieve this, the patented Pulsed Excitation Method applied by DMA 4500 M delivers the most stable density results based on comprehensive knowledge of the oscillation characteristics. This method results in viscosity correction which is twice as effective as anything else available on the market. The automatic bubble detection system gives you back control of your filling. With this unique method you also benefit from built-in intelligence: frequently changing users with differing filling approaches, humidity, air pressure, and instrument condition, all these have no effect on the operation and results.

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Key features

A revolutionary measuring principle for the density meter which leads the way

The unique design of the measuring cell, a novel way of evaluating the oscillation characteristics, and many other innovative features lead to the following:

Supervise your filling quality and be alerted if there is an error

Supervise your filling quality and be alerted if there is an error

  • The U-View™ camera feature displays and stores live images of the oscillating U-tube sensor and the entire filled-in sample
  • Relevant images with the sample fully and clearly visible are stored in the data memory 
  • Later review of these images guarantees completely transparent measurement processes
  • U-View™ and FillingCheck™, the automatic real-time bubble detection feature, supervise the entire measurement sequence and allow later verification of the results, which is particularly useful when using automatic sampling systems
Touchscreen for premium user experience

Touchscreen for premium user experience

  • The only density meter with PCAP touchscreen technology for unmatched sensitivity and robustness at the same time
  • Easy operation, even when wearing gloves
  • Large screen, readable from a distance due to adaptable font sizes
ThermoBalance™ temperature management

ThermoBalance™ temperature management

  • No temperature-related fluctuations 
  • No temperature-related aging effects on the measuring cell
  • Change between temperatures quickly without drifts and rely on immediate temperature stability
Leading viscosity correction

Leading viscosity correction

  • Automatic viscosity correction across the entire viscosity range of samples
  • Eliminates viscosity-related errors twice as effectively as ever before
  • No viscosity standards required
Fit for pharmaceutical demands

Fit for pharmaceutical demands

  • Full QM, GMP/GLP, and 21 CFR Part 11 compliance
  • Audit Trail
  • Password protection with three user levels and customizable user group administration to prevent accidental changes
  • Forgery-proof data export
  • Different security levels and increased security settings
  • Electronic signature

Technical specifications

DMA 4100 M DMA 4500 M DMA 5000 M
Patents granted
  • AT 516420 (B1)
  • AT 517082 (B1)
  • AT 516420 (B1)
  • AT 517082 (B1)
  • AT 516420 (B1)
  • AT 517082 (B1)
Patents pending
  • AT 517486 (A1)
  • AT 517486 (A1)
  • AT 517486 (A1)
Measuring range
  • Density: 0 g/cm³ to 3 g/cm³
  • Temperature: 0 °C to 100 °C
    (32 °F to 212 °F)
  • Pressure: Up to 10 bar (145 psi)
  • Density: 0 g/cm³ to 3 g/cm³
  • Temperature: 0 °C to 100 °C
    (32 °F to 212 °F)
  • Pressure: Up to 10 bar (145 psi)
  • Density: 0 g/cm³ to 3 g/cm³
  • Temperature: 0 °C to 100 °C
    (32 °F to 212 °F)
  • Pressure: Up to 10 bar (145 psi)
Repeatability s.d.(1)
  • Density: 0.00001 g/cm³
  • Temperature: 0.02 °C/0.04 °F
  • Density: 0.000005 g/cm³
  • Temperature: 0.01 °C/0.02 °F
  • Density: 0.000001 g/cm³
  • Temperature: 0.001°C/0.002°F
Reproducibility s.d.(1)
  • Density: 0.00005 g/cm³
  • Density: 0.00002 g/cm³
  • Density: 0.000005 g/cm³
Accuracy(2)
  • Density: 0.0001 g/cm³
  • Temperature: 0.03 °C/0.05 °F
  • Density: 0.00005 g/cm³ 
  • Temperature: 0.02 °C/0.04 °F
  • Density: 0.000007 g/cm³ 
  • Temperature: 0.01 °C/0.02 °F
Digital Resolution
  • 0.0001 g/cm³
  • 0.00001 g/cm³
  • 0.000001 g/cm³
Integrated tables and functions
  • Alcohol tables
  • Extract/sugar tables
  • API functions
  • Acid/base tables
  • 150 freely programmable tables/user functions (tables, polynomials, formulas, linear functions, and constants)
  • Alcohol tables
  • Extract/sugar tables
  • API functions
  • Acid/base tables
  • 150 freely programmable tables/user functions (tables, polynomials, formulas, linear functions, and constants)
  • Alcohol tables
  • Extract/sugar tables
  • API functions
  • Acid/base tables
  • 150 freely programmable tables/user functions (tables, polynomials, formulas, linear functions, and constants)
Minimum sample amount
  • approx. 1 mL
  • approx. 1 mL
  • approx. 1 mL
Measuring time per sample(3)
  • 30 seconds
  • 30 seconds
  • 40 seconds
Dimensions (L x W x H)
  • 495 mm x 330 mm x 230 mm
    (19.5 in x 13 in x 9.1 in)
  • 495 mm x 330 mm x 230 mm
    (19.5 in x 13 in x 9.1 in)
  • 495 mm x 330 mm x 230 mm
    (19.5 in x 13 in x 9.1 in)
Data memory
  • 1000 measurement results
    (optional ring memory)
  • 1000 measurement results
    (optional ring memory)
  • 1000 measurement results
    (optional ring memory)
Power supply
  • AC 100 to 240 V
  • 50 to 60 Hz
  • 190 VA
  • AC 100 to 240 V
  • 50 to 60 Hz
  • 190 VA
  • AC 100 to 240 V
  • 50 to 60 Hz
  • 190 VA
Weight
  • 22.5 kg
    (49.6 lbs)
  • 22.5 kg
    (49.6 lbs)
  • 22.5 kg
    (49.6 lbs)
Interfaces
  • 4 x USB
  • RS-232
  • CAN
  • VGA
  • Ethernet
  • 4 x USB
  • RS-232
  • CAN
  • VGA
  • Ethernet
  • 4 x USB
  • RS-232
  • CAN
  • VGA
  • Ethernet
Display
  • Bright 10.4" TFT PCAP touchscreen (640 x 480 px) with customizable display layout
  • Bright 10.4" TFT PCAP touchscreen (640 x 480 px) with customizable display layout
  • Bright 10.4" TFT PCAP touchscreen (640 x 480 px) with customizable display layout
Wetted parts
  • PTFE, borosilicate glass
  • PTFE, borosilicate glass
  • PTFE, borosilicate glass
Industries
  • Beverages
  • Chemical Industry
  • Cosmetics, Personal Care
  • Electronics
  • Environmental
  • Food Industry
  • Petroleum Industry
  • Pharmacy, Medicine, Biotechnology
  • Beverages
  • Chemical Industry
  • Cosmetics, Personal Care
  • Education, Research
  • Electronics
  • Environmental
  • Food Industry
  • Petroleum Industry
  • Pharmacy, Medicine, Biotechnology
  • Beverages
  • Chemical Industry
  • Cosmetics, Personal Care
  • Education, Research
  • Electronics
  • Environmental
  • Pharmacy, Medicine, Biotechnology

(1) according to ISO 5725

(2) under ideal conditions and for low densities/viscosities

(3) After temperature equilibration

Standards

A

AOAC 982.10
ASBC Beer-2B: Specific Gravity by digital density meter (1978)
ASBC Beer-5: Real Extract (B. Beer measured gravimetrically (1958), C. Real Extract determined refractometrically (1982))
ASTM D1250
ASTM D1475
ASTM D2501
ASTM D4052
ASTM D4806
ASTM D5002
ASTM D5931
ASTM D6448

C

CPTC SH/T 0604-2000 eqv. ISO 12185

D

DIN 51757

E

EBC Chapter 1.6
EBC Chapter 8.2.2
EBC Chapter 9.43.2
European Union Spirits drinks: COMMISSION REGULATION (EC) No 2870/2000
European Union Wines: COMMISSION REGULATION (EC) No 128/2004
European Union Wines: COMMISSION REGULATION (EC) No 355/2005
European Union Wines: COMMISSION REGULATION (EEC) No 2676/90

H

HM Revenue & Customs Density measurement for the revenue accounting of spirits

I

IP 365
ISO 2811-3
ISO 12185
ISO 14214
ISO 15212-1
ISO 18301

J

JIS K 0061
JIS K 2249

O

OIML R 22
OIV Alcohol content in wine and musts
OIV Analysis method for density measurement in wine and musts
OIV MA-BS-04
OIV MA-BS-06

P

Ph. Eur. 2.2.5 - Relativ density

U

USP 29 - Specific Gravity Method II
USP 841 - Specific gravity

2

2020 Chinese Pharmacopoeia 0601-relative density determination method

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