{"product_id":"online-conductivity-and-acid-base-analyzer-870009a","title":"Online Conductivity and Acid\/Base Analyzer","description":"\u003ch1\u003eThe Sper Scientific 870009A Online Conductivity and Acid\/Base Analyzer continuously monitors conductivity, resistivity, salinity, total dissolved solids (TDS), temperature and the concentration of selected chemical solutions.\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003ePaired with a compatible digital conductivity sensor, it supports applications from pure water systems to industrial process water and wastewater treatment. \u003c\/strong\u003eA backlit display provides local readings. Dual analog outputs and RS485 Modbus RTU communication connect the controller to process monitoring systems. Alarm and cleaning functions support routine operation, while historical data recording helps users review measurement trends.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMultiple measurement modes with compatible digital sensors\u003c\/li\u003e\n\u003cli\u003eTwo 4–20 mA outputs and RS485 Modbus RTU\u003c\/li\u003e\n\u003cli\u003eHigh\/low alarms and cleaning relay function\u003c\/li\u003e\n\u003cli\u003eHistorical data recording and retention of settings after power loss\u003c\/li\u003e\n\u003cli\u003ePanel-mount controller with IP65 protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e\u003cstrong\u003e870009A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eDisplay\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e3.1-inch backlit LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003ePower supply\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e100–240 VAC, 50\/60 Hz; 24 V option\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003ePower consumption\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e4 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eOutputs\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003eTwo 4–20 mA outputs; RS485 Modbus RTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eRelays\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003eHigh\/low alarm and cleaning function; 5 A at 250 VAC or 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eConductivity\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–2,000,000 µS\/cm (0–2,000 mS\/cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eSalinity\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–80.00 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eTDS\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–60,000 mg\/L (ppm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eResistivity\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–20.00 MΩ·cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eTemperature\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–150.0°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eAcid\/base concentration\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003eCompound-dependent; see ranges below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eHousing \/ protection\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003eABS plastic; IP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eDimensions \/ weight\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e144 × 144 × 104 mm; 0.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eOperating conditions\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e−40 to 70°C; ≤95% RH, noncondensing; altitude ≤2,000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eController ranges are shown; actual performance and usable ranges depend on the selected sensor.\u003c\/p\u003e\n\u003ch4\u003eAcid, Base and Salt Concentration Ranges\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eHCl\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–18%; 22–39% at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eHNO₃\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–29%; 35–96% at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eH₂SO₄\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–29%; 30–83%; 93–100% at 10°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eNaCl\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–26% at 20°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eNaOH\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–14%; 18–50% at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eKOH\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–29%; 29–48% at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eHF\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–36% at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eCaCl₂\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–25%; 25–40% at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eCH₃COOH\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–17%; 17–70% at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eH₃PO₄\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–35% at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eNa₂CO₃\u003c\/th\u003e\n\u003ctd style=\"text-align: left;\"\u003e0–19% at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":68205136380128,"sku":"870009A","price":997.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/online-conductivity-and-acidbase-analyzer-870009a-8652391.jpg?v=1793360777","url":"https:\/\/sperdirect.com\/es\/products\/online-conductivity-and-acid-base-analyzer-870009a","provider":"Sper Scientific Direct","version":"1.0","type":"link"}