{"product_id":"arcus-sk80-waq","title":"SK80-WAQ - KNX Water Quality Controller for pH and ORP, Without Probes","description":"\u003cp\u003eThe SK80-WAQ is a KNX measuring unit for pool and technical water that reads pH and redox (ORP) electrodes and sends the values to the KNX bus. This version is supplied without electrodes, so standard combination pH\/ORP probes can be fitted, and an optional PT1000 probe adds water temperature for compensation.\u003c\/p\u003e\u003cp\u003eThe surface-mount housing has a local LCD, two potential-free contact inputs and an IP54\/65-rated bus coupler. It runs on KNX bus power alone.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\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\u003eWorks with standard combination pH\/ORP electrodes (3\/4\" x 16UNF \/ PG 13.5 thread) installed in a bypass line\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\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\u003e30802100\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 Supplied without electrodes; order the SK80-WAQ pH\/ORP probe set separately or fit standard combination pH\/ORP electrodes.\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":50554328711424,"sku":"30802100","price":414.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/4161\/5360\/files\/3210_SK80-WAQ-MES_30802101_v2.jpg?v=1791428400","url":"https:\/\/www.knxsupply.com\/products\/arcus-sk80-waq","provider":"KNX Supply","version":"1.0","type":"link"}