{"product_id":"ph-analog-controller-with-dual-output-and-self-diagnostic-test-hi8711","title":"pH Analog Controller with Dual Output and Self-Diagnostic Test – HI8711","description":"\u003ch5\u003eFail Safe Alarm System\u003c\/h5\u003e\n\u003cp\u003eHanna’s exclusive Fail Safe Alarm System protects against problems caused by power supply failure or signal interruption,  which are typical risks in industrial environments. An alarm condition is indicated by a red LED,  located directly on the front panel of the controller.\u003c\/p\u003e\n\u003ch5\u003eOvertime Dosing Protection\u003c\/h5\u003e\n\u003cp\u003eThe HI8711 incorporates adjustable overtime dosing protection from 5 to 60 minutes. If dosing exceeds selected time,  the alarm will be triggered and the dosing contact will deactivate. This feature can be activated or deactivated.\u003c\/p\u003e\n\u003ch5\u003eOutput and Input Connections\u003c\/h5\u003e\n\u003cp\u003eEach model accepts either a direct input from a pH or ORP electrode or from a transmitter through 4-20 mA input. The instrument also provides ±5V power output and input terminals for amplified electrodes. Moreover,  you can choose the output configuration for connecting a recorder or a PLC,  between 0-20 or 4-20 mA.\u003c\/p\u003e\n\u003ch5\u003eSelf-Diagnostic Test\u003c\/h5\u003e\n\u003cp\u003eBuilt-in autodiagnostic functions enable the user to check and troubleshoot any malfunctions. The functions are made via front panel keys to isolate the cause of malfunction whether it is due to pH electrode contamination,  internal offset circuit or the amplifier circuit.\u003c\/p\u003e\n\u003ch5\u003eMatching Pin Connection\u003c\/h5\u003e\n\u003cp\u003eSupports potential matching pin connection to avoid typical problems caused by grounding loop currents,  such as progressive damage of the electrode,  fluctuating measurements,  and poor process regulation.\u003c\/p\u003e\n\u003ch5\u003eRobust Design\u003c\/h5\u003e\n\u003cp\u003eA removable,  transparent splash-proof cover protects the front panel.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e HI8711\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003e pH Analog Controller with Dual Output and Self-Diagnostic Test – HI8711\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Range\u003c\/td\u003e\n\u003ctd\u003e 0.00 to 14.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Resolution\u003c\/td\u003e\n\u003ctd\u003e 0.01 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Accuracy\u003c\/td\u003e\n\u003ctd\u003e ±0.02 pH (0 to 100 °C)\/ ±0.05 pH (-20 to 0 °C) (electrode); ±0.5% (transmitter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Dosing Relay\u003c\/td\u003e\n\u003ctd\u003e 2, isolated, 2 A, Max 240 V, resistive load, 1000000 strokes (not fuse protected)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Dosing Set Point\u003c\/td\u003e\n\u003ctd\u003e 0.00 to 14.00 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDosing Control\u003c\/td\u003e\n\u003ctd\u003e OFF\/AUTO\/ON with selection switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver Dosing Control\u003c\/td\u003e\n\u003ctd\u003e Adjustable, from 5 min to 60 min with knob or Disable by wire strap - on rear panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Input Signal\u003c\/td\u003e\n\u003ctd\u003e 4 to 20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Ouput Signal\u003c\/td\u003e\n\u003ctd\u003e 0-20 mA or 4-20 mA (isolated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBacklight\u003c\/td\u003e\n\u003ctd\u003e Continuous ON\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Output\u003c\/td\u003e\n\u003ctd\u003e ±5 Vcc; 150 mA max load for amplified electrodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure\u003c\/td\u003e\n\u003ctd\u003e Black anodized aluminium body; front and back with ABS; transparent splash-proof front cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e 115 or 230 Vac; 60\/50 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e -10 to 50°C (14 to 122°F); RH max 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e 141 x 69 mm (5.6 x 2.7'')\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e 1 kg (2.2 lb.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eManuals\u003c\/h3\u003e\u003cp\u003e\u003ca target=\"_blank\" href=\"https:\/\/manuals.hannainst.com\/HI8711\"\u003epH Analog Controller with Dual Output and Self-Diagnostic Test – HI8711\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871419597169,"sku":"HI8711","price":99268.2,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/hi8711-2100x2100-37b83a76-0f27-4a54-b90a-95828bb0a106.jpg?v=1792646604","url":"https:\/\/hannainst.in\/products\/ph-analog-controller-with-dual-output-and-self-diagnostic-test-hi8711","provider":"hanna","version":"1.0","type":"link"}