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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:

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
PUOrder No.in Stock  
IL-pHT-A120MF-DIN-NplatinumA-typeyesDIN + banana plug, 1 m fixed cable12015421652-Login / Registration
IL-pHT-A120-DIN-NceramicA-typeyesDIN + banana plug, 1 m fixed cable12015421653-Login / Registration
IL-pHT-A120MF-BNC-NplatinumA-typeyesBNC + banana plug, 1 m fixed cable12015421654-Login / Registration
IL-pHT-A120-BNC-NceramicA-typeyesBNC + banana plug, 1 m fixed cable12015421655-on demand
IL-pHT-H120MF-DIN-NplatinumH-typeyesDIN + banana plug, 1 m fixed cable12015421656-Login / Registration
IL-pHT-H120-DIN-NceramicH-typeyesDIN + banana plug, 1 m fixed cable12015421657-Login / Registration
IL-pHT-H120MF-BNC-NplatinumH-typeyesBNC + banana plug, 1 m fixed cable12015421658-on demand
IL-pHT-H120-BNC-NceramicH-typeyesBNC + banana plug, 1 m fixed cable12015421659-on demand
IL-pHT-A120MF-BNC-CIplatinumA-typenoBNC + Chinch plug, 1 m fixed cable12015421660-on demand
IL-pHT-A120MF-R-NNplatinumA-typenoMetrohm + 2 banana plugs, 1 m fixed cable12015421661-Login / Registration
IL-pHT-A170MF-DIN-NplatinumA-typeyesDIN + banana plug, 1 m fixed cable17015421662-Login / Registration
IL-pHT-A170-DIN-NceramicsA-typeyesDIN + banana plug, 1 m fixed cable17015421663-Login / Registration
IL-pHT-A170MF-BNC-NplatinumA-typeyesBNC + banana plug, 1 m fixed cable17015421664-on demand
IL-pHT-A170-BNC-NceramicsA-typeyesBNC + banana plug, 1 m fixed cable17015421665-on demand
IL-pHT-H170MF-DIN-NplatinumH-typeyesDIN + banana plug, 1 m fixed cable17015421666-Login / Registration
IL-pHT-H170-DIN-NceramicsH-typeyesDIN + banana plug, 1 m fixed cable17015421667-Login / Registration
IL-pHT-H170MF-BNC-NplatinumH-typeyesBNC + banana plug, 1 m fixed cable17015421668-on demand
IL-pHT-H170-BNC-NceramicsH-typeyesBNC + banana plug, 1 m fixed cable17015421669-on demand
IL-pHT-A170MF-BNC-CIplatinumA-typenoBNC + Chinch plug, 1 m fixed cable17015421670-on demand
IL-pHT-A170MF-R-NNplatinumA-typenoMetrohm + 2 banana plugs, 1 m fixed cable17015421671-on demand
* IL-pHT-A120MF-BNC-CI with NTC 30 kΩ.