{"product_id":"online-sterilizable-glass-ph-sensor-120-mm","title":"Online Sterilizable Glass pH Sensor - 120 mm","description":"\u003ch1\u003eSterilizable Glass pH Sensor for Fermentation and Process Monitoring\u003c\/h1\u003e\n\u003cp\u003eThe Sper Scientific 120 mm glass pH sensor measures from 0.00 to 14.00 pH in pharmaceutical production, biochemical processes, industrial fermentation, brewing and food processing. Its heat-resistant construction supports applications that require sterilization between production cycles.\u003c\/p\u003e\n\u003cp\u003eA dual liquid junction and gel electrolyte reference system help provide stable measurements with reduced routine electrolyte maintenance. The Ag\/AgCl reference incorporates a silver ion trap to help prevent silver sulfide deposits at the ceramic junction. The manual specifies a temperature measurement range of 0–80°C and a separate heat-resistance range of 0–130°C.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFull 0.00–14.00 pH measurement range with a listed response time of 30–60 seconds\u003c\/li\u003e\n\u003cli\u003e120 mm insertion length with a 12 mm glass sensing shaft\u003c\/li\u003e\n\u003cli\u003eHeat-resistant construction for fermentation and sterilization applications within the specified limits\u003c\/li\u003e\n\u003cli\u003eDual liquid junction with gel electrolyte and ceramic separator\u003c\/li\u003e\n\u003cli\u003eSilver ion trap to help protect the reference junction from silver sulfide deposits\u003c\/li\u003e\n\u003cli\u003eVP connection with optional temperature compensation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 293.907px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eSper part number\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003e870002-HPH2-120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eMeasurement\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003epH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003epH range\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003e0.00–14.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eResponse time\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003e30–60 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eInsertion length\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003e120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eSensing shaft diameter\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003e12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eTemperature measurement range\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003e0–80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eTemperature resistance range\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003e0–130°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003ePressure resistance\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003e0.6 MPa (6 bar); use a suitable process housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eReference system\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003eGel electrolyte with ceramic separator and silver ion trap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eReference electrode\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003eAg\/AgCl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eJunction design\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003eDual liquid junction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eElectrical connection\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003eVP connection,  S7 also available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"text-align: left; width: 36.12%; height: 19.5938px;\"\u003eTemperature compensation\u003c\/td\u003e\n\u003ctd style=\"text-align: left; width: 61.2088%; height: 19.5938px;\"\u003eOptional Pt100, Pt1000 or other specified element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis listing is for the 120 mm insertion length with VP connectors\u003c\/strong\u003e, temperature compensation elements and other insertion lengths are configuration dependent. \u003c\/p\u003e\n\u003cp\u003eInstallation requires a matching pH transmitter, connection cable and suitable mounting or process housing.\u003c\/p\u003e\n\u003cp\u003eIf you need assistance, please \u003cmeta charset=\"utf-8\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/pages\/contact-us\"\u003econtact us\u003c\/a\u003e to confirm your specific requirements before ordering.\u003c\/p\u003e\n\u003ch4\u003eFAQs\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eCan the sensor be used for continuous measurement at 130°C?\u003c\/strong\u003e\u003cbr\u003eThe manual lists 0–80°C for temperature measurement and 0–130°C for heat resistance. Confirm continuous operating conditions and sterilization requirements for your application before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the sensor calibrated?\u003c\/strong\u003e\u003cbr\u003eThe manual recommends two-point calibration using suitable pH buffers. Typical examples are pH 7 for the zero point followed by pH 4 or pH 9 for the slope. Follow the connected transmitter's calibration instructions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow should the electrode be stored?\u003c\/strong\u003e\u003cbr\u003eKeep the sensing tip and junction immersed in suitable KCl storage electrolyte when the sensor is out of service. Rinse the tip after each production cycle and prevent process residue from drying on the glass or junction.\u003c\/p\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":68330718822624,"sku":"870002-HPH2-120","price":825.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/online-sterilizable-glass-ph-sensor-120-mm-870002-hph2-120-3292198.jpg?v=1793360768","url":"https:\/\/sperdirect.com\/en-ca\/products\/online-sterilizable-glass-ph-sensor-120-mm","provider":"Sper Scientific Direct","version":"1.0","type":"link"}