{"product_id":"arcus-sk80-waq-mes","title":"SK80-WAQ-MES - KNX Water Quality Measuring System with pH and ORP Probes","description":"\u003cp\u003eThe SK80-WAQ-MES is a KNX water quality measuring system for pools, spas and technical water, supplied with pH and redox (ORP) combination electrodes. It sends pH, ORP and, with an optional PT1000 probe, water temperature to KNX, and adds two potential-free contact inputs.\u003c\/p\u003e\u003cp\u003eThe electrodes install in a bypass line and screw in hand-tight. The surface-mount unit has a local LCD and an IP54\/65-rated bus coupler, and it runs on KNX bus power alone.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIncludes pH electrode HI2114P (0 to 13 pH) and ORP electrode HI3214P (0 to 2000 mV)\u003c\/li\u003e\n\u003cli\u003epH 0 to 13 and ORP\/redox 0 to 2000 mV electrode inputs, galvanically isolated from KNX\u003c\/li\u003e\n\u003cli\u003eOptional PT1000 input for water temperature 0 to +80 °C (32 to 176 °F) (±0.3 °C (±0.54 °F)) for compensation\u003c\/li\u003e\n\u003cli\u003e2 potential-free contact inputs (S1, S2); local LCD\u003c\/li\u003e\n\u003cli\u003eSurface-mount housing; bus coupler IP54\/65\u003c\/li\u003e\n\u003cli\u003eBus powered (approx. 10 mA); ETS application S8-WAQ; electrode service life 1 to 3 years\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eArticle no.\u003c\/th\u003e\n\u003ctd\u003e30802101\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eKNX bus voltage\u003c\/th\u003e\n\u003ctd\u003eKNX 21-32 VDC, bus load 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower consumption\u003c\/th\u003e\n\u003ctd\u003eapprox. 10 mA from KNX bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAuxiliary supply\u003c\/th\u003e\n\u003ctd\u003eNone stated (bus powered)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasuring\u003c\/th\u003e\n\u003ctd\u003epH 0-13 (HI2114P electrode); ORP\/redox 0-2000 mV (HI3214P electrode; ETS range -1200..+1200 mV); optional PT1000 water temperature 0..+80 °C (32 to 176 °F), accuracy ±0.3 °C (±0.54 °F); electrode input impedance \u0026gt;500 GOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInputs \/ outputs \u0026amp; connections\u003c\/th\u003e\n\u003ctd\u003epH and ORP electrode inputs (galvanically isolated from KNX), optional PT1000 input for temperature compensation, 2 potential-free contact inputs (S1, S2); switching output not available as standard; local LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection rating\u003c\/th\u003e\n\u003ctd\u003eIP54\/65 (bus coupler)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eSurface-mounted (AP) housing; probes installed in a bypass line, screwed in hand-tight (thread 3\/4in x 16UNF \/ PG 13.5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating temperature\u003c\/th\u003e\n\u003ctd\u003e-25 to +60 °C (-13 to 140 °F) (storage -25 to +80 °C (-13 to 176 °F)), 0-100 % RH non-condensing; probes 0 to +80 °C (32 to 176 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eApplication note:\u003c\/strong\u003e The optional PT1000 water temperature probe is not included; replacement pH\/ORP electrode sets are available separately.\u003c\/p\u003e\u003ch3\u003eDownloads\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.arcus-eds.de\/fileadmin\/download.arcus-eds.de\/3000_S8_Spezielle_Sensorik\/3210_SK80-WAQ\/3210_01_e2_SK80-WAQ-MES_01.pdf\" target=\"_blank\" rel=\"noopener\"\u003eProduct datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.arcus-eds.de\/fileadmin\/download.arcus-eds.de\/3000_S8_Spezielle_Sensorik\/3000_S8_allgemein\/Arc_S8_knxprod.zip\" target=\"_blank\" rel=\"noopener\"\u003eETS application\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e(CE certified; not UL\/NRTL listed — verify local code requirements before specifying in US installations)\u003c\/em\u003e\u003c\/p\u003e","brand":"ARCUS EDS","offers":[{"title":"Default Title","offer_id":50554328744192,"sku":"30802101","price":598.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/4161\/5360\/files\/3210_SK80-WAQ-MES_30802101_v2_5ae994ee-b619-44a3-891d-9fac8bc4ea2d.jpg?v=1791428401","url":"https:\/\/www.knxsupply.com\/products\/arcus-sk80-waq-mes","provider":"KNX Supply","version":"1.0","type":"link"}