Ion Selective Electrodes Dealers

• epoxy: 120mm
• 12 mm: coaxial; 1 m (3.3’)

The HI4000-50 replacement sensor handle is compatible with Hanna’s liquid ISE modules. The sensor handle can be used as a sensing half-cell with the calcium, nitrate, or potassium half-cell modules. The HI5315 reference half-cell electrode is required for use with the HI4000-50 sensing half-cell to complete the electrical circuit and to provide a stable reference voltage. Features at-a-glance Replaceable Liquid Modules - The calcium, nitrate, and potassium half-cell modules can easily be replaced on the sensor handle. The HI4000-50 acts as the sensing electrode in an ISE measurement system. Durable Epoxy Body - The probe body is composed of durable epoxy material. BNC Connection - The HI4000-50 has a universal BNC connector for easy connection to any meter with a female BNC probe input.   Theory of Operation A liquid membrane ion selective electrode develops a voltage due to the ion exchange that occurs between the solution and the polymer membrane that contains organic ion exchange resin. When the ionic strength of the solution is fixed by the addition of ISA, the voltage is proportional to the concentration of free ions in solution.

A large selection of Ion Selective Electrodes (ISE), USA make to suit a wide variety of applications is available. Each electrode has a typical response time of 20 to 30 seconds which varies with solution concentration.

• Material: Ion
• Application: Water / waste water, soil, diary meals, tomato, vegetable products
• Country of Origin: Made in India
• Model: ISE
• Cable Length: 1 MTR

Salient Features INTRODUCTION The concentration of Ions and gases in solution may be determined using ion selective electrodes. When a suitable sensing electrode is immersed in a solution containing ions or gases, an electrical potential may develop at the electrode surface due to a selective spontaneous reaction. The magnitude of this potential varies with the concentration of the selected ion or gas ISEs are responsive to concentration of particular ions in the test liquid and are variable-potential electrodes. When measurements are made using an ion meter, by calibrating with various standard solutions, direct readings of the concentration of the ion can be taken. Slope of the electrode depends on the temperature therfore measurements must be taken at a fixed temperature. SOLID STATE ELECTRODES are as combination electrodes complete with reference electrode. These electrodes incorporate a solid sensing surface made of compressed silver halides, or solid crystalline material. A solid state electrode develops a voltage due to ion-exchange occurring between the sample and the inorganic membrane. An equilibrium mechanism occurs due to the very limited solubility of the membrane material in the sample. GAS SENSORS are combination electrodes that detect dissolved gases in a solution. No external reference is required for these electrodes. The sensing element is separated from the sample solution by a gas permeable membrane A gas sensor works due to the partial pressure of the measured gas in solution. The dissolved gas in the sample diffuses into the membrane and changes the pH in a thin film of unbuffered electrolyte on the surface of the internal pH sensor. Diffusion continues until the partial pressure of the sample and the thin film is the same. The pH change is proportional to the dissolved gas in the sample STORAGE AND CLEANING It is sufficient to store the electrode in a standard solution during short measuring intervals. In order not to strain the membrane unnecessary, the electrode should be stored dry if it is not used for several days. After the dry storage put into standard solution for 3 - 4 hours for new measurements. Contaminations should be removed with a wet paper towel, don’t use organic solvents like acetone.   No Reference electrode needed Solid state sensors Refillable Type Our ISEs are compatible with other make Ion / pH meter Direct measurement of Ionic concentration Standard supply with ISAB & Calibration Solutions Refillable Type Virtually unbreakable Fast response no maintenance No membranes or replacement module

• Cable Length: 10 meter
• Dimensions: 120x12 mm
• Sensor Type: ion selective electrode
• Temperature Range: 0 to 50 Degree C
• Maximum length: 10 Meters
• pH Range: 0 to 8.5 pH
• Brand Name: SENTEK

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