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TRANG CHỦ Sản phẩm Hamilton Thiết bị trong sản xuất Sensors

High performance and long lasting

Our sensors are reliable tools for application-oriented use and are characterized by the highest quality, long life and competitive price. In order to meet these rigorous requirements we are constantly striving to find new ways to design our sensors. As a result of the extensive work by our research and development department, Hamilton is able to offer outstanding solutions for pH, dissolved oxygen, conductivity and ORP monitoring.

 

 

 

 



 

pH sensors

 

pH measurements are important in many processes. There is almost none where the pH value does not play a dominant role. All biological processes depend on the activity of enzymes because they show a pH optimum and lose their functionality if the pH is too low or too high. The pH value is measured in most processes using a glass electrode. This pH glass forms a thin gel layer in aqueous solutions that is highly selective to H+ ions. The pH dependent potential of the gel layer is measured against a built-in reference electrode with a constant potential. In general, the pH value is a measure of the acidity or the basicity of an aqueous solution.

Hamilton offers pH sensors for nearly every process in Pharmaceutical, Chemistry and Water applications.

 

 


 

Polilyte Plus

The Polilyte sensors are universal maintenance free sensors designed to withstand demanding applications in chemical, petrochemical industries, as well as process water, wastewater treatment applications. Liquid junction problems and total break downs are eliminated with the two Single Pores. The Polilyte sensors show good measurement accuracy in highly alkaline solutions as well as in samples with low conductivity. Additionally, the Everef-L reference cartridge ensures a long lifetime. A stabilized sensor signal and an extended sensor diagnosis thanks to the integrated Liquid Earth in the VP are further features of the Polilyte Plus.

The Arc System

The Polilyte Plus is also available with our innovative Arc system. The Arc system eliminates the transmitter and communicates directly with your Process Control System.

 

 

 

EasyFerm Bio

The EasyFerm Bio family of pH sensors is designed for applications in the Pharmaceutical, Biotechnology and Food & Beverage industries. All family members have the same reference electrolyte Foodlyte, with its certified bio-compatibility. Additionally the EasyFerm Bio sensors are certified to EHEDG criteria. The standard EasyFerm Bio, with its HB glass, is directed at the Food & Beverage industry where CIP and SIP cycles occur frequently because the glass shows a very fast recovery leading to a shortened set-up time. The new versions with the PHI glass show an excellent chemical robustness at high pH values.

The LEVP (LE = Liquid Earth) versions have a stabilized sensor signal and an extended sensor diagnosis.

The electrolyte of the EasyFerm Bio sensors is pre-pressurized to prevent the diffusion of sample into the sensor. The Everef-F reference cartridge ensures that the reference electrolyte remains free of silver and precipitation of proteins.

 

 

 

 

EasyFerm Plus

The EasyFerm Plus family of pH sensors is designed to withstand demanding applications in the Pharmaceutical and Chemical industries. All family members have the same reference electrolyte Phermlyte, the same type of diaphragm HP Coatramic but different pH glasses. The standard EasyFerm Plus, with its PHI glass, is directed at the BioPharm and Pharmaceutical industries because the glass has an excellent

 

chemical robustness and provides best results in applications where sterilization either in an autoclave or an SIP is performed frequently. The new versions with the HB glass show a very fast recovery after CIP and SIP cycles leading to a shortened set-up time.

 

The LEVP (LE = Liquid Earth) versions have a stabilized sensor signal and an extended sensor diagnosis.

 

The electrolyte of the EasyFerm Plus sensors is pre-pressurized to prevent the diffusion of sample into the sensor. The Everef-F reference cartridge ensures that the reference electrolyte remains free of silver and precipitation of proteins.

 

 

 

ChemoTrode

The ChemoTrode is the most robust sensor to measure pH in demanding applications in pharmaceutical and chemical industries.

The ChemoTrode has a refill hole which allows refilling of the electrolyte and pressurization of the reference system. It's Everef-F reference cartidge ensures that the reference electrolyte remains free of silver and precipitation of proteins.

The ChemoTrode Bridge has even an extended life time due to its special reference system Everef-B.

 

 

 

 

 



 

Dissolved Oxygen

The partial pressure of dissolved oxygen (DO) plays an important role in many biological, chemical and physical processes. Respiration in a lung or a leaf depends on the differences of the partial pressure as well as fermentation of substrates by yeast or bacteria. The amount of dissolved oxygen is also important for the safety and the quality of many other industrial processes.

The most common technologies to measure DO are the classical amperometric and the modern optical method. Classical amperometric Clark cells, where cathode and anode are separated from the sample by a gas permeable membrane, generate an electrical current proportional to the oxygen partial pressure of dissolved oxygen. The oxygen is reduced in the sensor, catalyzed by an electrolyte at a platinum cathode. At the anode silver is oxidized. In contrast to the Clark cells the optical measurement is based on the luminescence of a luminophore that absorbs photons and releases a part of the absorbed energy by emission of photons with a higher wavelength. Oxygen quenches this process by transferring the energy partially by collision. The more oxygen present the more quenching is observed. Hamilton measures the phase shift between excitation and emission across a population of light pulses in order to achieve the highest accuracy and widest operating range. The difference in the intensity of both waves is used for online sensor diagnostics.

 


 

VisiFerm DO

The VisiFerm DO is the first optical oxygen sensor with integrated opto-electronics, having the full functionality of a measuring device with self-diagnostics. It is steam sterilizable, autoclavable and CIP compatible. The visiFerm requires less maintenance than a classical oxygen sensor as it does not have a mechanically sensitive membrane or a corrosive electrolyte.

The Arc System

 

The VisiFerm DO is also available with our innovative Arc system. The Arc system eliminates the transmitter and communicates directly with your Process Control System.

 

 

 

 

 

 


 

VisiTrace DO

The VisiTrace DO is designed to measure dissolved oxygen in the low ppb range in brewing applications, notably during filtration and filling. Adjacent markets are also boiler feed water in power plant . The VisiTrace DO offers all the advantages of Hamilton`s optical dissolved oxygen sensors: fast response time and easy maintenance. Improvements compared to conventional electrochemical (amperometric) sensors include flow independence, rapid start-up with no polarization time and implified maintenance. Monitoring in low ppb ranges is essential in many applications such as brewing processes and power plants.

 

 

 

 

 

 

 


 

VisiPro DO (Ex)

The VisiPro DO Ex is the only optical dissolved oxygen (DO) sensor for use in explosive environment.

VisiPro DO optical technology improves the measuring performance and simplifies maintenance. Improvements compared to conventional electrochemical (amperometric) sensors include flow independence, rapid start-up with no polarization time, and simplified maintenance. With their integrated transmitter, VisiPro DO sensors enable direct communication to the process control system via 2 wire 4-20 mA standard signal or digital HART. All relevant sensor data including calibration and diagnostic information are stored in the sensor head, simplifying calibration and maintenance. Additional wireless communication directly from the sensor to your computer simplify laboratory calibration, configuration, and maintenance.

 

 

 

 

 

 


 

VisiWater DO

The VisiWater DO sensors are intended for the measurement of dissolved oxygen (DO) in water application. It comes with integrated opto-electronics, having the full functionality of a measuring device with self-diagnostics. The VisiWater DO sensor requires less maintenance than a classical oxygen sensor as it does not have a mechanically sensitive membrane or a corrosive electrolyte.

 

 

 

 

 

 

 

 

 

 



 

Conductivity

 

The electrical conductivity is important for the characterization of liquids in different kinds of processes. In aqueous solutions the conductivity is caused by the decomposition of dissolved acids, bases or salts into positive cations and negative anions. In ultra-pure water, where no ions, except very few H3O+ and OH-, are present, the conductivity is extremely low. This intrinsic conductivity of water represents the lower border of the conductivity scale. 
The electrical conductivity is determined by a resistivity measurement when an alternating voltage is applied to a measurement cell that consists of two or four electrodes. To compensate for the geometry of the conductivity cell a cell constant is used. This constant is either known or determined by means of conductivity standards. 

Electrical conductivity is the reciprocal of electrical resistivity, and measures a material’s ability to conduct an electric current. Its SI unit is Siemens per meter (S/m). For the measurement of the conductivity of a solution it’s common to use μS/cm or mS/cm.

2-Pole Sensor Features:

 

  • Low cost solution
  • Accurate measurement of solutions with extremely low or high ionic strength

4-Pole Sensor Features:

  • Measurement linearity over a large range
  • No polarization effects
  • Less sensitive to coating from contaminated samples 

 


 

Conducell 4UxF

The Conducell 4UxF sensors are suited for measurements in hygienic applications. All wetted parts are FDA approved, can be cleaned easily and withstand CIP cleanings and autoclavations. The sensors show a very good linearity over a broad measuring range.

They are available with different process connections such as BioConnect (BC) or Varivent.

The Conducell 4USF with stainless steel electrode is most common and suitable for many applications.

The Arc System

The Conducell 4UxF is available with our innovative Arc system. The Arc system eliminates the transmitter and communicates directly with your Process Control System.

 

 

 

 

 

 


 

Conducell 4US

The conducell 4US 4-pole sensor can easily be cleaned and withstands CIP cleanings and autoclavations. The sensor shows a very good linearity over a broad measuring range.

Available with different process connections like Triclamp or G 1¼".

 

 

 

 

 

 

 

 

 

 

 

 


 

 

Conducell 2DC

The Conducell 2DC sensor is constructed in a simple way and is best suited for measurements in clear solutions and non-critical applications. Contaminants, such as lime, will affect the measurements.

 

 

 

 

 

 

 

 

 

 

 


 

Conducell UPW

The fully compliant ultra-pure water (UPW) quality measurement sensors from Hamilton.

For biotechnology, pharmaceutical and cosmetic industries, process safety and quality are highly related to the production of pure and ultra-pure water that meets the Pharmacopeia regulations.

 

 

 

 

 

 

 

 

 

 



 

Cell Density

 

In January 2014 Hamilton acquired the biomass sensing technology from Fogale Nanotech. Biomass is very often related to renewable energies and so might lead to misunderstandings. Now that the products are re-branded the term cell density monitoring is used. Two different technologies are summarized under cell density monitoring: viable cell density and total cell density. The viable cell density measurement is based on capacitance and gives the user a deep insight on their cell culture or fermentation. It’s insensitive to microcarriers and cell debris. The total cell density measurement is based on turbidity, resp. on optical density measurement at NIR (Near Infra-Red) wavelengths. The measuring loops for viable and total cell density monitoring consist of an Incyte resp. Dencytee sensor, an individual pre-amplifier and an Arc View controller. The controller can display both parameters at once using the 2 (Arc View 265) or 4 (Arc View 465, 465 XL) channel inputs. Additionally Arc pH and DO sensors with a wireless module can be displayed on the controller giving the user the ability to regard all relevant parameters of a cell culture or fermentation on one screen.

 

 

 

 


 

Incyte - Viable Cell Density

The viable cell density measurement is based on capacitance. Viable cells behave like little capacitors and their polarization and depolarization in an alternating electrical field is measured. The signal can be correlated to the bio-volume, resp. the viable cell density. Only viable cells can be polarized in the alternating electrical field so this method is insensitive to cell debris as well as to microcarriers. A measuring loop consists of an Incyte sensor that is available in different dimensions, an Incyte pre-amlifier and an Arc View controller. The Arc View can display both parameters at once using the 2 (Arc View 265) or 4 (Arc View 465, 465 XL) channel inputs. Additionally Arc pH and DO sensors with a wireless module can be displayed on the controller giving the user the ability to regard all relevant parameters of a cell culture or fermentation on one screen. Incyte sensor and pre-amplifier are sold as calibrated Incyte Unit but are also available as spare parts.

 

 

 

 


 

Dencytee - Total Cell Density

 

The total cell density measurement is based on the optical density resp. the turbidity of a suspension at NIR wavelengths. All particles and molecules that scatter the NIR light will be detected and can be correlated to the total cell density. The Dencytee sensor keeps the light intensity at the detector constant leading to a wide linearity range. A measuring loop consists of a Dencytee sensor with an optical path length of 5 mm, a Dencytee pre-amplifier and the Arc View controller. The controller can display both parameters at once using the 2 (Arc View 265) or 4 (Arc View 465, 465 XL) channel inputs. Additionally Arc pH and DO sensors with a wireless module can be displayed on the controller giving the user the ability to regard all relevant parameters of a cell culture or fermentation on one screen. Denytee sensor and pre-amplifier are sold as Dencytee Unit but are also available as spare parts.

 

 

 

 


 

Controller

The Arc View Controller is used to collect and record data generated by the Incyte and Dencytee sensors. The Controller can wirelessly record Arc sensor data, such as pH and dissolved oxygen, so all parameters can be viewed from a single screen. To properly run Incyte or Dencytee sensors the ArcView must be equipped with the proper licenses: Ref. 243822 (Incyte Licence) is required to use Incyte sensors, Ref. 243823 (Incyte Scan Licence) is optional for measurement at 17 additional frequencies to analyse the bioprocess more detailed, Ref. 243824 (Dencytee License) is required to use Dencytee sensors, Ref. 243820 (OPC XML-DA License) is optional for connection to OPC network.