Horiba electrode tip protector (black) – set of 3

The Horiba 9652-10D pH electrode with double diaphragm is a durable, gel-filled glass electrode in a robust plastic housing, specially developed for mobile use with handheld measuring devices from the LAQUA 200 series. It covers a measuring range from 0 to 14 pH and guarantees reliable results in a temperature range from 0 to 80 °C. The combination of a double diaphragm (double junction) and a porous, sintered polyethylene contact ensures stable measuring performance even under demanding conditions. An integrated temperature sensor enables accurate, temperature-compensated pH measurements. Thanks to its gel filling, the electrode is virtually maintenance-free and does not require refilling of the electrolyte solution.  Manufacturer item number: 3200786359

The Horiba 9652-20D pH electrode with double diaphragm is a gel-filled pH glass electrode in a robust plastic housing, ideal for outdoor use in conjunction with handheld measuring devices from the LAQUA 200 series. It offers a measuring range from 0 to 14 pH and works reliably in a temperature range from 0 to 80 °C. Thanks to the double diaphragm (double junction) and the porous, sintered polyethylene liquid contact, it ensures high measurement stability. An integrated temperature sensor ensures precise, temperature-compensated measurements. The electrode is low-maintenance as it is gel-filled and does not need to be refilled. Manufacturer Part Nr. 3200786361

300-P-C pH sensor cartridgeManufacturer article number: 3200786363

300-O-C ORP sensor cartridge Manufacturer article number: 3200922104

Manufacturer number: 3200922105The flat platinum sensor at the tip allows measurement of samples with small volumeWaterproofNot refillableCombined electrode

Calcium (Ca2+) ion-selective electrode for 300 seriesThe new electrode is suitable for the LAQUA WQ-300 series from Horiba and offers precise and reliable measurements for ions in aqueous solutions. It is characterised by its user-friendly handling and environmentally friendly design and can be used for a wide range of applications.Linearity in measurement range:The range where the calibration curve has linearity is called the measurement range. When lower concentration is measured where the linearity is not established, perform calibration at two points in the lower concentration range.Below graph shows the theoretical calibration curve of a calcium ion selective electrode.Influence of pH:The impact of the pH may cause a decrease in the slope of the ion selective electrode, or parallel shifting of the calibration curve. To prevent these effects, set the pH to an appropriate value in advance and keep it constant.Interfering ions:Ion selective electrodes have good selectivity with respect to the ions to be measured, but they may react to the other ions. When using the ion electrode method, it is important to know the effects of coexistent ions and take measures to avoid them. Interfering ions may form compounds with poor solubility or may form complex salts with the structure material of the ion selective membrane, these may to have a significant impact on the measured value.Conditioning:An electrode is conditioned by soaking it in a standard solution for 1 hour or longer. Use a standard solution whose concentration is 100 mg/L or more.In the following cases, perform conditioning of the electrode before calibration.• Before the first use.• Before use after storage for 2 weeks or longer.• If the electrode is less responsive.Calibration:Always calibrate with at least 2 calibration solutions which are 1 decade apart and bracket the expected measurement value.Use fresh calibration solutions and do not re-use them.• Below 10 ppm (mg/L)First solution between 1 and 10ppmSecond solution between 10 and 50 ppm• Between 10 and 100 ppm (mg/L)First solution between 10 and 100ppmSecond solution between 100 and 1000 ppm• Above 100 ppm (mg/L)First solution between 100 and 1000ppmFurther information can be found in the download area of the store. Manufacturer article number: 3200986786 (300-CA-C)