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SI Analytics®
IoLine pH Combination Electrodes with Fixed Cable and Integrated Temperature Sensor

SI Analytics®  IoLine pH Combination Electrodes with Fixed Cable and Integrated Temperature Sensor
SI Analytics® IoLine pH Combination Electrodes with Fixed Cable and Integrated Temperature Sensor
Patented three-chambers system with Iodine reservoir in the iodine / iodide reference electrode. The component determining the potential, i. e. the Iodine, is continuously being resupplied. The first chamber contains a supply which is used to fresh up the reference electrolyte and the reference system of the second chamber with iodine in order to maintain the necessary I3- / I- concentration and thereby a stable reference potential. The electrolyte link between the second and the third chamber containing the exchangeable bridge electrolyte is provided by an interior diaphragm, allowing only a minimal diffusion. The bridge electrolyte also provides the contact with the sample via the diaphragm. The reference system is based on the following reaction:

I2 + I- + 2 e- <=> 3 I-.

The ORP is thereby described by the Nernstian equation:

EH = E° + RT / zF * ln ([I3-] / [I-]3)
whereby E° = 0.536 V, R = 8.314472 I / (K * mol),
T in K, z = 2 and F = 96485.34 C / mol.

The stability of the reference system potential even at changing temperatures is the key to the IoLine electrodesá superior response speed and measurement stability and, additionally, higher accuracy compared to conventional Ag / AgCl electrodes. A platinum diaphragm which is inherent to the MF version of the electrodes ensures a remarkable constancy and reproducible measuring. The diaphragm contains twisted platinum wires being fused into the glass shaft of the electrode.
Reference system:iodine / iodide
Zero point:pH = 7.00 ± 0.25
pH range:0 to 14
Temperature range:- 5 to + 100 °C
Shape of membrane:sphere
Technical Data:
Shaft:

glass, 12 mm Ø
Glass resistance:A-type: 200 MΩ
H-type: 300 MΩ
Temperature sensor:Pt 1000*
Application A-type:
Application H-type:
general, low ion media
high temperatures, optimised for alkaline area
 TypeDiaphragmGlassID functionConnectionShaft
length
mm
Order No.PU  Availability
IL-pHT-A120MF-DIN-NplatinumA-typeyesDIN + banana plug, 1 m fixed cable12054216521Login / Registration-
IL-pHT-A120-DIN-NceramicA-typeyesDIN + banana plug, 1 m fixed cable12054216531Login / Registration-
IL-pHT-A120MF-BNC-NplatinumA-typeyesBNC + banana plug, 1 m fixed cable12054216541Login / Registration-
IL-pHT-A120-BNC-NceramicA-typeyesBNC + banana plug, 1 m fixed cable12054216551Login / Registration-
IL-pHT-H120MF-DIN-NplatinumH-typeyesDIN + banana plug, 1 m fixed cable12054216561Login / Registration-
IL-pHT-H120-DIN-NceramicH-typeyesDIN + banana plug, 1 m fixed cable12054216571Login / Registration-
IL-pHT-H120MF-BNC-NplatinumH-typeyesBNC + banana plug, 1 m fixed cable12054216581Login / Registration-
IL-pHT-H120-BNC-NceramicH-typeyesBNC + banana plug, 1 m fixed cable12054216591Login / Registration-
IL-pHT-A120MF-BNC-CIplatinumA-typenoBNC + Chinch plug, 1 m fixed cable12054216601Login / Registration-
IL-pHT-A120MF-R-NNplatinumA-typenoMetrohm + 2 banana plugs, 1 m fixed cable12054216611Login / Registration-
IL-pHT-A170MF-DIN-NplatinumA-typeyesDIN + banana plug, 1 m fixed cable17054216621Login / Registration-
IL-pHT-A170-DIN-NceramicsA-typeyesDIN + banana plug, 1 m fixed cable17054216631Login / Registration-
IL-pHT-A170MF-BNC-NplatinumA-typeyesBNC + banana plug, 1 m fixed cable17054216641Login / Registration-
IL-pHT-A170-BNC-NceramicsA-typeyesBNC + banana plug, 1 m fixed cable17054216651Login / Registration-
IL-pHT-H170MF-DIN-NplatinumH-typeyesDIN + banana plug, 1 m fixed cable17054216661Login / Registration-
IL-pHT-H170-DIN-NceramicsH-typeyesDIN + banana plug, 1 m fixed cable17054216671Login / Registration-
IL-pHT-H170MF-BNC-NplatinumH-typeyesBNC + banana plug, 1 m fixed cable17054216681Login / Registration-
IL-pHT-H170-BNC-NceramicsH-typeyesBNC + banana plug, 1 m fixed cable17054216691Login / Registration-
IL-pHT-A170MF-BNC-CIplatinumA-typenoBNC + Chinch plug, 1 m fixed cable17054216701Login / Registration-
IL-pHT-A170MF-R-NNplatinumA-typenoMetrohm + 2 banana plugs, 1 m fixed cable17054216711Login / Registration-
* IL-pHT-A120MF-BNC-CI with NTC 30 kΩ.