A versatile, combination pH electrode with integrated temperature sensor and fixed cable with BNC/Cinch (RCA) connector. Ideal for a wide range of applications including emulsions, suspensions, effluent water and solutions containing proteins and sulphides. Designed for use with METTLER TOLEDO portable meters SevenGo Duo™ (SG23) and SevenGo Duo pro™ (SG68 and SG78) only.
The InLab® Expert Pro ISM electrode has been designed with long life in mind. The fine-pored ceramic junction used in conventional electrodes can easily become contaminated in critical media such as suspensions and wastewater. In contrast the InLab® Expert Pro ISM electrode with a solid polymeric electrolyte requires no junction at all. As a result these sensors are particularly insensitive to contamination. The reference electrode on these sensors is in direct contact with the measured medium by means of two open junctions, hence there is no junction to block. In addition, the high grade plastic (PEEK) shaft offers a high level of chemical resistance and robustness. Service life and measurement accuracy are further improved by the ARGENTHAL™ reference system which reduces loss of silver chloride from the reference wire at differing sample temperatures.
| Reference system | ARGENTHAL™ |
|---|---|
| Shaft length | 120 mm |
| Shaft material | PEEK |
| Short description | built for SevenGo Duo™ SG23 and SevenGo Duo pro™ SG68 and SG78 |
| Temperature range °C | 0 ... 100 |
| Cable and connections | 1.2 m cable, BNC/RCA (Cinch) |
| pH-range | 0 ... 14 |
| Temperature probe | NTC 30 kOhm |
| Type of membrane glass | U |
| Shaft diameter | 12 mm |
| Storage longterm | FRISCOLYT-B® (51340053) in watering cap |
| Reference electrolyte | XEROLYT® Polymer |
| Storage shortterm | 3 mol/L KCl, buffer pH 4 or 7 |
| Response time (98% between pH 4...7) | < 20 sec. |
| Membrane resistance (25 °C) | < 250 MOhm |
