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Density Gradient Columns
Key Features
- Measures density of small samples of solid materials
- Simple set-up, operation and maintenance
- Complies with BS2782 part 6 Method 620D, ASTM D1505-68, ISO 1183 and other international standards
- Accuracy to 0.0001g/ml
- Constant temperature control via heating and cooling circuits
- Accepts mains water
- Column solution filling apparatus supplied for ease of use
Accessories / Options
For full details of accessories and options available, please view specification literature.
Standard Accessories (supplied with the Density Column):
- Algicide sufficient to treat two columns
- Sweep basket and line
- Stainless steel capillary filling tube
- PTFE covered magnetic stirrer bar
- Plastic covered rod (to insert column into water jacket)
- Stopclock with right angle bend
- Stopclock assembly
- Thermometer 18°C - 28°C
- Two sets of floats - user specified
Optional Accessories:
- Replacement Float 0.8-1.5999 g/ml (without calibration certificate)
- Calibration certificate for single float
- Set of 9 floats in range 0.8-1.5999 g/ml
- Set of 9 floats in range 1.6-2.7 g/ml
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RXA 156/170
The RXA 156 and RXA 170 modules are equipped with a micro flow cell and an integrated Peltier thermostat ensuring accurate and automatic temperature control. Fast and non-destructive measurements, requiring only small sample volume, yield to refractive index (RI) and RI-derived results. Both RXA types can be used as a module in measuring systems.
All the advantages of modular design
* Combination with a DMA 4100/4500/5000, DSA 5000 or Soft Drink Analyzer 2 to a measuring system
* DMA, DSA or Soft Drink Analyzer 2 serve as the control and evaluation unit of the system
* The instruments can be used separately if required
* For pasty or expensive samples, manual filling of the refractometer is possible
* Simple adjustment of both instruments using air and water in one procedure
* Automatic filling and cleaning of both instruments with an optional sample changer
One measuring cycle, two (three) sample parameters
* Save time by simultaneously determining the density (and sound velocity) and refractive index
* Fast and reliable results
Reliable measuring methods
* Established U-tube method for measuring density
* Highly accurate measurement of the angle of total reflection for determining the refractive index
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Concentration, Water Content and Dry Substance measured by microwaves
Your Advantages:
High selective sensitivity to water
High accuracy and long-term stability
even for difficult products
Simple installation, insertion directly
on the existing pipelines, vessels, chutes etc.
Simple start-up, system supported sample taking,
automatic calibration and graphic display
Accurate and reliable measurement
due to two highly stable PLL-synthesizers
and multi-frequency technology
Durable sensor measuring cells with wear resistant
smooth walled PTFE lining
Contactless measuring cell without installed
measuring antenna
High operational safety and standards of quality
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PROCESS LOW FLOW RATE LIQUID IN-LINE DENSITY METERS DC-30 SERIES
LEMIS process uses the proven vibrating element technology which is widely accepted as the most accurate of continuous density measurement. It is based on the frequency changing of the sensitive unit and resistance of the built-in temperature sensor in dependence of characteristics of measured liquid. The oscillation period of the sensitive unit mainly depends on density and temperature of measured liquid.
Continuous monitoring optimizes, controls and manages the processes. DC-30 series has a variety of applications, where low flow rate does not allow to install standard high flow systems. PC connection allows distance control for the most critical parameters in such processes as organic synthesis and chemical reactions in reactors.
New age of LEMIS process combined meters measure various critical parameters: density, concentration, dynamic viscosity, kinematic viscosity, temperature. Two meters in one device saving cost of installation and maintenance!
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The compact, rugged Thermo Scientific SGD-O is the most reliable non-contacting density gauge for monitoring fluid density, including PPG, PPA and SGU, in the oilfield during fracturing and cementing. Capable of enduring high shock and vibration yet lightweight, this advanced device features rapid response and high accuracy to improve consistency, safety and overall performance. Engineered to withstand the extreme moisture and high humidity of oilfield environments, it rapidly indicates variations in slurry density and proppant concentration during fracturing and cementing operations. The SGD-O is comprised of three components: the source and detector work together to measure the fluid density while the remotely located electronic transmitter provides a clear digital display of the measurement. This advanced gauge measures through any pipe thickness, with the detector providing response in three to five seconds and accuracy of ±0.1 pounds per gallon. The transmitter can be mounted up to 100 feet away from the gauge to ensure worker safety. It can be powered by a readily available 12 or 24 volt power supply and features quick disconnect connectors for cable and transmitters. The SGD-O is also easy-to-install and use and has minimal maintenance requirements.
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mPDS 2000V3 Evaluation Unit for Process Transducers
Anton Paar's mPDS 2000V3 evaluation unit is ideal for complex measurement tasks with process transducers. mPDS 2000V3 provides a clear graphical overview and user interface. All established process interfaces are available (digital/analog inputs/outputs, Profibus, RS 232, RS 485). Numerous user programs are integrated and you can add your own concentration calculations. According to your application, the flexible software allows you to add, for example, a Carbo CO2 analyzer for beverage analysis or other units for additional concentration measurements.
Limit monitoring
* Alarms help you prevent out-of-spec production
* Up to 255 products can be selected
Flexible connection to your plant
* Perfect integration via analog, digital and bus interfaces
Automatic and continuous data recording
* Optional PC software for modern data analysis
* Profibus option
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L-Dens 313 Density Transmitter
The L-Dens 313 density transmitter is a powerful and flexible measuring instrument for the continuous determination of liquid density and concentration - from the mililiter to the hectoliter scale. The wide range of application programs makes the instrument extremely versatile. The L-Dens 313 is ideal for applications requiring a density measuring accuracy of 1x10-3 g/cm3.
Small and compact
* The density sensor and user interface are integrated in one unit
Continuously, automatically
* Temperature-compensated density, °Brix, °Plato, %Alcohol
* API index or other concentration values
* Results given directly on a 4-line display and as a 4-20-mA analog signal via RS232/RS485 or Profibus DP (optional)
Attractively priced
* A complete solution for simple applications at a very reasonable price
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PART #SBS-2002
DIGITAL SPECIFIC GRAVITY TESTER KIT
Battery testing has never been this easy. Simply insert the nozzle into the battery, depress the finder pump, and extract a few drops of sulfuric acid (H2S04) electrolyte. Touch one button and the processor does the rest. Within three seconds you have a temperature compensated accurate reading of specific gravity and temperature.
Field studies show time savings of at least 5 times (500%) using the SBS-2002 Digital Hydrometer over a standard glass hydrometer and thermometer.
ADDITIONAL PARTS:
SBS-2002 KIT SPARE PARTS KIT
SBS-2002 SAMPLING TUBE
SBS-2002 O-RING GASKET
SBS-2002 HOLSTER W/BELT
SBS-2002 CALIBRATION
SBS-2002 CALIBRATION CERTIFICATE
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PART # SBS-2500
DIGITAL SPECIFIC GRAVITY TESTER
Battery testing has never been this easy. Simply insert the nozzle of the digital hydrometer into the battery, depress the finder pump, and extract a few drops of electrolyte. Touch one button and the processor does the rest. Within seconds you have an accurate reading of temperature compensated specific gravity and electrolyte temperature.
Field studies show time savings of at least 5 times (500%) using the SBS-2500 Digital Hydrometer over a standard glass hydrometer and thermometer.
This digital hydrometer will log up to 1,100 individual S.G. & temperature readings that can later be uploaded to a laptop or PC running the included software
ADDITONAL PARTS:
SBS-2500 O-RING
SBS-2500 SAMPLE PUMP
SBS-2500 PRINTER
SBS-2500 TUBE/WASH
SBS-2500 SPARE PARTS KIT
SBS-2500 CASE
SBS-2500 CD
SBS-2500 LIGHT
SBS-2500 LIGHT BATTERY
SBS-2500 COMM CABLE
SBS-2500 ADAPTER
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Gas density controllers
These operate mechanically. The density of the sample gas is compared via a bellows system with the gas density in a reference gas chamber. If the density of the sample gas alters, the bellows system actuates one or more micro switches. Gas density controllers function independent of any power supply.
Trafag gas density controllers are employed internationally in gas-insulated, high-voltage switchgear in power distribution networks. Their performance record is worldwide is unique. Even at climate-related temperature fluctuations of over 135°C, they provide precise measurement results and function reliably and maintenance-free. They are therefore to be found all around the world, in the ice-cold polar regions or under the blazing desert sun.
Gas density sensors
function electronically. The consistent resonant frequency of a quartz oscillator under vacuum is compared with the resonant frequency of an identical quartz situated in the sample gas. The difference in the resonant frequency is proportional to the density of the sample gas. This difference is processed into a digital or analogue output signal.
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The Ranarex Gravitometer excels over more complex and costly gas analyzers in applications where the specific gravity of the process gas is a direct indication of the gas quality. Performance highlights of a gas gravitometer include simplicity, fast response, accuracy, and very low long-term cost.
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The UGC Vibrating Densitometer accurately measures the density of a flowing fluid at actual operating conditions. This Densitometer was primarily developed for extremely accurate fluid metering (custody transfer), plus many other applications, such as pipeline interface detection, blending, process control, etc. The frequency output of the Vibrating Densitometer is compatible with most flow computers.
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The contactless and continuos measurement of the density of liquids or bulk material is requested in even more than the following applications:
Concentration measurement of acid, alkali, saline solution and suspension
Crystallisation and polymerisation monitoring
Determination of the solid matter content in slurries, in flue gas desulphurisation suspensions, in aluminium production and in mining
Measurement of the bulk density in washing powder and clinker
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Density Meter Series DIMF 2.0
Swagelok-screw joints, flange DN 15 PN 40, milk threads according to DIN 11851 PN 10
accuracy ± 0,2 kg/m³
reproducibility 0,05 kg/m³
operating temperature according to design -40°C to 210°C Accessoires
electronical transmitter
pre-amplifire
strainer
gas separator
processing peripherals
Density Meter Series DIMF 2.1
flange DN 25 / 50 PN 40
accuracy ± 0,2 kg/m³
reproducibility 0,05 kg/m³
operating temperature according to design -40°C to 150°C
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The DENSITRAK® Model D625 liquid density meter utilizes the spring mass principle for measuring the fluid density. A portion of the "u" tube is energized to vibrate at its natural resonant frequency by using an electrical feedback driving system. A change in the vibrating mass, (as a result of change in the fluid density) shifts the resonant frequency. A CSI SPUD signal processing unit for density uses temperature, pressure and the shift in frequency to determine the density of the measured fluid.
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PROCESS LIQUID IN-LINE DENSITY METERS DC-50 SERIES
LEMIS process DC-50 series of process in-line meters has been carefully engineered for continuous measurement of liquid density to fit large range of applications.
LEMIS process use streamlined resonant tube which is washed on either side by measured liquid. The oscillation period of the vibrating tube and its frequency characteristics depend on behaviour of the measured liquid allowing simultaneous and accurate direct measurement of density and concentration.
Large offer of factory pre-built installation packs allows quick and simple field installation with minimal pipeline disturbance or process downtime. The meter supplied with rigorous factory calibration for density. The DC-50 series proves high accuracy and long-term calibration stability insensitive to mounting position, plant vibration, process flow rate and pressure variations.
New age of LEMIS process combined meters measure various critical parameters: density, concentration, dynamic viscosity, kinematic viscosity, temperature. Two meters in one device saving cost of installation and maintenance!
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Thermo Scientific gas and liquid density meters measure density or density related variables within the oil and gas, petrochemical, chemical, food and beverage, and general process industries. These highly accurate, online, continuous meters use a proven vibrating element design to provide key information for process monitoring and control, quality control, product interface detection and custody transfer applications. With a twin tube design that is inherently more stable than single tube technology, the meters detect any variation of process constituents or final product quality in near real-time to improve productivity, minimize product waste and reduce costs when compared to sampling methods. The compact, lightweight meters are also easy to install without upstream flow conditioning or instrument supports. Once installed, the straight-through sensor offers an unobstructed flow path to ensure minimal pressure drop and higher flow rates. With hazardous area approvals and secondary containment on all models, these durable instruments withstand tough industrial environments to ensure a significant return on investment.
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Applications
: In-line density measurement of liquids or multiphase-mixtures
Special features:
Reliability
Robust construction with magnetic transmission of measured values.
Can be used in hazardous areas.
No by-pass required
Wide and clear scale
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Microwave measurement for the sugar industry
An important parameter for the sugar production is the concentration of the sugar massecuite. Measurement of the dry substance content, usually represented as Brix is absolutely essential in order to optimize, control and improve the sugar quality.
Based on experience in process control, BERTHOLD TECHNOLOGIES provides products, which exactly match the instrument needs and expectations of customers producing sugar.
We offer specially designed microwave sensors for measurements in product pipelines, dissolved sugar containers, crystallizers and at other process locations. The Micro-Polar Brix provides accurate, reliable online concentration measurements of the sugar magma over the entire process.
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PROCESS LIQUID IN-TANK DENSITY METERS DC-40 SERIES
LEMIS process DC-40 series of process liquid and LPG density and concentration meters are ideal for real-time, in tanks, in situ monitoring and control applications within the oil, liquefied petroleum and natural gases, petrochemical, chemical, food processing and other industries. The DC-40 series covers wide range of density and temperature. Numerous installation options give large flexibility to fit various applications. The sensor can be installed into a tank using different types of installation: direct insertion, top, bottom or side mounting. This technique can be employed in open or pressurized tanks and reactors. Large temperature range. Standard protocol, or user-defined protocol allows integrating in process control systems. The meters have approvals for use in hazardous areas.
New age of LEMIS process combined meters measure various critical parameters: density, concentration, dynamic viscosity, kinematic viscosity, temperature. Two meters in one device saving cost of installation and maintenance!
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Digital density meters with up to five decimal places for measuring density, relative density and concentration of aqueous solutions in a range of 0.00000 – 1.99999 g/cm³. Measuring method is based on established oscillating U-tube technology. The U-tube made of glass is monitored through the window to ensure that no gas bubble falsifies measurement results. The device has a high-precision recirculation air-temperature control based on a Peltier element. Calibration is performed with pure water and dry air. A dry-air unit and a peristaltic pump for sample handling are included. The operation is intuitive and done by a user-friendly touch screen. All important settings are visible on the main screen and stored in an SQL data base together with measuring results. Data storage covers last 999 measurements. An activatable three-level user administration with password protection makes the DS7000 series particularly suitable for use in GLP/GMP regulated industries.
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Density Meter DMA 5000 M
The density meter DMA 5000 M provides unparalleled ease of use and complete transparency and traceability of the sample filling and measurement process. DMA 5000 M is the most accurate density meter on the market and is ideal for numerous applications, such as industrial quality control, research, use at authorities and at standards organizations.
Be sure of your results
* Fast, reliable measurement results of great accuracy (0.000005 g/cm3)
* Only 1 mL of sample required
* Different user functions applicable: tables, polynomials and formulas
FillingCheck™
* You are warned of filling errors and gas bubbles in the sample
* Filling warnings are recorded fully automatically
U-View™
* Displays 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
* Particularly when using automatic sampling systems, U-View™ and FillingCheck™ supervise the entire measurement sequence and allow later verification of the results
ThermoBalance™
* Eliminates all measurement drifts caused by temperature stress due to temperature changes or sample temperatures greatly different from the measuring temperature
* Allows accurate and convenient density measurements in a wide temperature range
* Only one adjustment at one temperature required
* Patented reference oscillator (AT399051)
Automatic viscosity correction
* Across the samples' entire viscosity range
* Eliminates viscosity-related errors
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PORTABLE/LABORATORY LIQUID DENSITY METERS DM-300 SERIES
The operating principle is resonant method (vibration element) of measurement. It is based on the changing of frequency characteristics of the sensitive unit and resistance of the built-in temperature sensor in dependence of characteristics of the measured liquid.
Resonant tube technology implemented in DM-300 density meter achieves higher accuracy and stability of the measurements.
Design of the device considerably simplifies sampling and sample preparing procedure. Operator does not need any plastic syringes and other special laboratory glassware! Measuring chamber is especially designed for very viscous liquids. Cleaning procedure is shortened for more than 2 times comparing to similar class devices!
New age of LEMIS process combined meters measure various critical parameters: density, concentration, dynamic viscosity, kinematic viscosity, temperature. Two meters in one device saving cost of installation and maintenance!
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Micromeritics new AccuPyc II 1340 Gas Displacement Pycnometry System are fast, fully automatic analyzers that provide high-speed, high-precision volume measurements and density calculations on a wide variety of materials. The AccuPyc completes most analyses in less than three minutes with excellent accuracy by using a gas displacement technique to determine absolute density of powders, solids, and slurries having volumes from 0.01 to 350 cm3.
The instrument can be operated with a keypad or an optional Windowsâ interface that provides exceptional reporting and archiving capability. Both versions include direct sample mass input from a balance and cycle-based displacement volume reporting. With the Windows interface, features such as time-based pressure equilibration reporting and additional calculations such as percent solids content and total pore volume are included.
For those who require high throughput, an integrated control and analysis module can control up to five additional external analysis modules. Each module can have a different size sample chamber (1 cm3, 10 cm3, 100 cm3, 350 cm3) providing even more versatility.
A multivolume option allows analysis of a variety of sample sizes in a single analysis module. A temperature-controlled version of the analysis module performs analyses at user-selectable temperatures.
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Model MD-300S
- For measuring solid and liquid specific gravity
- Density resolution: 0.001g/cm³
- Liquid Mode available with option kit
- The volume of a solid sample can be measured
- Able to compensate water temperature and specific gravity of solution on front switches
- Specific gravity is automatically calculated
- Selectable measuring time
- Can measure specific gravity of less than 1
- Automatic compensation for room temperature
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DENSITY METER FEATURES - DDM 2911
Applications
The DDM 2911 Density Meter has the features to meet the needs of today's industries.
PETROLEUM
- Measure API Values in accordance with ASTM D1250 and DIN 51757
- QC incoming raw materials
- Research new products and additives
- Withstands harsh and heavy use environments
- Calibrate using petroleum standards
CHEMICAL
- Measure in units of Kg/m3, g/cm3, g/ml, pounds/gallon, specific gravity, Baumé and more
- Determine concentration in: %, molarity, normality, mole fraction, ppm, and more
- Check batch consistency and ensure proper blending rations
- Wetted materials compatible with the most aggressive chemicals.
PHARMACEUTICAL
- Capable of 3, 5 or more multiple measurements with standard deviation, min and max reading for true cGLP/GMP compliance
- Complete IQ/OQ/PQ documentation
- Checking of raw materials and product release
- 21CFR11 Compliance; Electronic Signature and Secure Data Storage
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Digital density meters measure density, specific gravity and other related values (I.e. alcohol%, BRIX°, API degrees) with high precision and short measuring time.
Measuring principle:
A hollow glass tube vibrates at a certain frequency. This frequency changes when the tube is filled with the sample: the higher the mass of the sample, the lower the frequency. This frequency is measured and converted into density.
Benchtop instruments are equipped with a built-in Peltier thermostat to control the temperature (no water bath required).
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General description :
DensiCheck
Controlling product quality and specification is increasingly important to process managers nowadays. Optimum cost control, costly rework and keeping process within tolerance limits are the common headaches for today's managers. Meeting these demands is easy with DensiCheck. In-line concentration measurement is the key. DensiCheck offers continuous process measurement at a very economic price.
Our DensiCheck systems are being used to measure concentration in many different aqueous solutions, including:
* Acetone
* Beer
* Chromic Acid
* Ethylene Chloride
* Hydrochloride Acid
* Hydrogen Peroxide
* Methanol
* Phosphoric Acid
* Sodium Hydroxide
* Sucrose
* Ammonium Hydroxide
* Calcium Hydroxide
* Ethanol
* Ferric Chloride
* Hydrofluoric Acid
* Isopropyl Alcohol
* Nitric Acid
* Sodium Chloride
* Soft Drinks
* Sulphuric Acid
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The SBS-3500 is our BEST portable specific gravity meter. It uses oscillating
U-tube technology while measuring the density of your sample supplying results within seconds. It is able to communicate wirelessly with a printer or PC via the integrated IrDA interface. Our SBS-3500 is additionally equipped with an RFID interface for quick sample identification and convenient change of the measurement method by reading RFID tags. This is a great solution for battery system, general industrial and laboratory applications.
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Portable Density Meter: DMA 35
The DMA 35 portable density meter measures the density and concentration of your sample and is characterized by the highest level of user friendliness. Its robust and lightweight design enables the use in numerous fields of application and its on-site operation in a wide range of work environments. This basic model enables the manual selection of measuring methods and sample IDs as well as wireless data exchange with a printer or PC. Therefore DMA 35 is an economic solution for general industrial and laboratory applications with constant or only occasionally changing measurement settings.
User friendliness
* Compact, lightweight design enabling one-hand measurement
* Easy operation, even when wearing protective gloves
* No-hassle measurement of hard-to-reach samples
* Large LC display with backlight for clear visibility of measuring results
* Measuring cell with inspection window and backlight
Robustness
* Rugged, leakproof housing design
* Designed for industrial and field applications
* Proven resistance of wetted parts against common samples
Wireless communication
* IrDA interface for data exchange with a PC and data export to a printer
Efficiency
* Storage of up to 100 sample IDs for easy sample identification
* Storage of up to 20 measuring methods
* Storage of up to 1024 measurement results including time stamp and sample ID
* Up to five programmable custom functions
* Two exchangeable 1.5 V AA batteries ensure long-term, reliable service
* Energy-saving mode for reduced power consumption provided
* Easy and fast replacement of the entire pump assembly
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Density meters
