{"product_id":"hi-504224-2","title":"HANNA HI 504224-2  pH\/ORP Digital Controller with Sensor Check","description":"\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cdiv id=\"Product-Body\"\u003e\n\u003cul\u003e\n\u003cli\u003ePID. PI. proportional or ON\/OFF control of pH or ORP for one or two set points\u003c\/li\u003e\n\u003cli\u003eSensor Check™ for a real-time pH\/ORP electrode status monitoring\u003c\/li\u003e\n\u003cli\u003eDigital transmitter or direct connection of the probe\u003c\/li\u003e\n\u003cli\u003eMatching PIN to eliminate the ground loop effect\u003c\/li\u003e\n\u003cli\u003eAutomatic temperature compensation for pH\u003c\/li\u003e\n\u003cli\u003eLogging of up to 100 system events and up to 6000 readings (pH. ORP. T)\u003c\/li\u003e\n\u003cli\u003eControl performed with up to 4 relays or analog output in 0-20 or 4-20 mA\u003c\/li\u003e\n\u003cli\u003eAutomatic probe cleaning from alarm or user request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eHI 504 is a PID. PI. proportional or on\/off pH\/ORP controller with one or two set points. The measurement configuration settings and control of pH and ORP are saved separately and permits users to switch between pH and ORP without losing settings. The pH channel can be calibrated in 2 calibration points. The instrument has a full auto diagnostic procedure. Sensor Check™ is also available for pH and ORP probes.\u003c\/p\u003e\n\u003cp\u003eThe temperature is continuously monitored using a temperature sensor (Pt100 or Pt1000 type) with automatic temperature compensation of pH.\u003c\/p\u003e\n\u003cp\u003eOne or two analog controller outputs (0-20 or 4-20 mA) can be configured for pH\/ORP recording or controlling (only for models with PID). and relays can be used to control the process or be connected with alarm status.\u003c\/p\u003e\n\u003cp\u003eController status is visable with LED's on the front panel and on LCD.\u003c\/p\u003e\n\u003cp\u003eThe controllers logging feature can save up to 6000 samples pH\/°C or ORP and last 100 error. configuration. calibration and cleaning events. This information can accessible from a PC through RS485 and HI 92500 software. The powerful HI 92500 software has graphing capabilities and can print graphs directly or can be saved as a bitmap. Data can be exported in common spreadsheet formats.\u003c\/p\u003e\n\u003cp\u003e\u003cbig\u003eSensor Check™ pH\/ORP\u003c\/big\u003e\u003c\/p\u003e\n\u003cp\u003eSensor Check™ performs self-diagnostic and troubleshooting functions by continuously verifying the electrode status based on impedance movement of the glass and reference measurement. The internal circuit of the instrument executes two independent tests. one for the probe and one for the reference chamber. measuring the respective impedance values every 5 seconds. These tests last for a very short period to avoid electrolysis and polarization. which can be caused by a prolonged exposure to an electric current. The types of problems identified by Sensor Check™ are: pH electrode broken. reference electrode dirty. reference electrode or matching pin not immersed. clogged or dirty electrode junction. short-circuit between cables of pH and reference electrodes. signal problems from the cable or connector due to humid or dirty environments. The test is not limited to a simple signal that indicates an error in progress. but it reports the nature of the problem with a specific error code.\u003c\/p\u003e\n\u003cp\u003e\u003cbig\u003eAnalog Output: Data Logging or PID Dosage Control\u003c\/big\u003e\u003c\/p\u003e\n\u003cp\u003eModels are available with one or two analog outputs. These outputs can be connected to a recorder for the catalogging of process data (pH\/mV and temperature). or can be used for controlling dosing systems (pumps or electrovalves) using PID control.\u003c\/p\u003e\n\u003cp\u003e\u003cbig\u003eLogging of the Last 100 Events\u003c\/big\u003e\u003c\/p\u003e\n\u003cp\u003eWith the HI 504 series. it is possible to recall the sequence of the last 100 occurred events at any time: errors. calibrations performed. set parameter changes and cleaning cycles. Every code shown on the display corresponds to a certain type of event. error. or operation.\u003c\/p\u003e\n\u003cp\u003e\u003cbig\u003eProgrammable Cleaning Cycles\u003c\/big\u003e\u003c\/p\u003e\n\u003cp\u003eHeavy-duty applications often require almost continuous probe maintenance. Elements such as suspended solids. fat. oils. pigments and microorganisms can quickly deposit and soil the glass bulb of a pH probe. the sensor of an ORP probe or the reference junction. To solve these problems. the HI 504 series has been equipped with an automatic cleaning system (simple or advanced. depending on model) with programmable cycles. The cleaning cycle is a simple wash with either water or detergent. programmed by setting the rinse time and the pause length. The advanced cleaning uses both water and detergent. and allows the user to program three stages. with the possibility to vary the sequence. the time. and the number of cycles. The advanced mode can also be triggered at any time from a remote control or through the isolated digital input on the rear panel. which can be connected to an external switch.\u003c\/p\u003e\n\u003cp\u003eThe controllers can also automatically activate both cleaning modes whenever Sensor Check™ reveals a soiled probe. A delay time can be set before restarting the reading after a cleaning cycle has taken place; this allows the probe to adjust to new operating conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cbig\u003eProgrammable Hold System\u003c\/big\u003e\u003c\/p\u003e\n\u003cp\u003eThe hold function allows the user to stop the regulating action of the controller for programmable time periods. It is possible to activate the hold periods in correspondence to programmed operations. such as plant maintenance and cleaning procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cbig\u003eFail Safe Alarm System\u003c\/big\u003e\u003c\/p\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. The system acts both on a hardware and a software level. The alarm relay functions in a normally closed condition. and is tripped when there is a power failure if. for example. the power cable is accidentally cut. This function is very important in industrial plants where alarms are usually not activated if there is a power supply interruption. which can cause serious damage due to a loss of control of the process plant. At the software level. the Fail Safe function activates an alarm in case of abnormal circumstances. for example if the dosing contacts remain closed for an excessive period. The alarm condition is also indicated by a red LED. located directly on the front panel of the controller.\u003c\/p\u003e\n\u003cp\u003e\u003cbig\u003eChoose your configuration\u003c\/big\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHI 504112-1\u003c\/strong\u003e single setpoint. on\/off control. single analog output. 115V\u003cbr\u003e\u003cstrong\u003eHI 504112-2\u003c\/strong\u003e single setpoint. on\/off control. single analog output. 230V\u003cbr\u003e\u003cstrong\u003eHI 504122-1\u003c\/strong\u003e single setpoint. on\/off and PID control. single analog output. 115V\u003cbr\u003e\u003cstrong\u003eHI 504214-1\u003c\/strong\u003e dual setpoint. on\/off control. dual analog output. 115V \u003cbr\u003e\u003cstrong\u003eHI 504222-1\u003c\/strong\u003e dual setpoint. on\/off and PID control. single analog output. 115V\u003cbr\u003e\u003cstrong\u003eHI 504222-2\u003c\/strong\u003e dual setpoint. on\/off and PID control. single analog output. 230V\u003cbr\u003e\u003cstrong\u003eHI 504224-0\u003c\/strong\u003e dual setpoint. on\/off and PID control. dual analog output. 24VDC\/AC\u003cbr\u003e\u003cstrong\u003eHI 504924-1\u003c\/strong\u003e dual setpoint. advanced cleaning. on\/off and PID control. dual analog output. 115V\u003cbr\u003e\u003cstrong\u003eHI 504924-2\u003c\/strong\u003e dual setpoint. advanced cleaning. on\/off and PID control. dual analog output. 230V\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrder Information:\u003c\/strong\u003e\u003cbr\u003eEach HI 504 model is supplied complete with mounting brackets and instructions.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv id=\"TabbedPanels1\" class=\"TabbedPanels\"\u003e\n\u003cul class=\"TabbedPanelsTabGroup\"\u003e\n\u003cli class=\"TabbedPanelsTab TabbedPanelsTabSelected\"\u003eSpecifications\u003c\/li\u003e\n\u003cli class=\"TabbedPanelsTab\"\u003eAccessories\u003c\/li\u003e\n\u003cli class=\"TabbedPanelsTab\"\u003eDownloads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"TabbedPanelsContentGroup\"\u003e\u003cdiv class=\"TabbedPanelsContent TabbedPanelsContentVisible\"\u003e\n\u003ctable class=\"spec_table mceItemTable\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003csmall\u003epH\u003c\/small\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e-2.00 to 16.00 pH\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003csmall\u003eORP\u003c\/small\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e-2000 to 2000 mV\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003csmall\u003eTemperature\u003c\/small\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e-30 to 130.0°C\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003csmall\u003epH\u003c\/small\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e0.01 pH\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003csmall\u003eORP\u003c\/small\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e1 mV\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003csmall\u003eTemperature\u003c\/small\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e0.1°C (above -10 °C); 1°C (below -10°C)\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy @ 20°C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003csmall\u003epH\u003c\/small\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e±0.02 pH\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003csmall\u003eORP\u003c\/small\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e±2 mV\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003csmall\u003eTemperature\u003c\/small\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e±0.5°C (-9.9 to 130.0°C); ±1°C (-30 to -10°C)\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e10\u003csup\u003e12\u003c\/sup\u003e Ohm\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Input\u003csmall\u003e\u003cbr\u003efor the pH\/ORP\/°C\u003cbr\u003eTransmitter\u003c\/small\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003eRS485\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOther Digital\u003cbr\u003eInsulated Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003etwo digital insulated inputs: one for hold and one for the advanced cleaning; ON state: 5 to 24 VDC\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Insulated\u003cbr\u003eOutput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003ea digital insulated contact closed upon hold mode\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature\u003cbr\u003eCompensation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003eautomatic or manual. -30 to 130°C\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Probe\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003ewith three-wire or two-wire Pt100\/Pt1000 sensor (with automatic recognition and damage test)\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e24 VDC\/AC. 115 VAC ±10%. 230 VAC ±10% \u003cem\u003eor\u003c\/em\u003e 100 VAC ±10%; 50\/60 Hz\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e10 VA\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOver Current Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e400 mA 250V quick blow fuse\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax. Oscillation\u003cbr\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e8 MHz\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelays 1. 2. 3. 4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003eelectromechanical relay SPDT contact outputs. 5A-250 VAC. 5A - 30 VDC (resistive load); fuse protected: 5A. 250V quick blow fuse\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarm Relay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003eelectromechanical relay SPDT contact output. 5A - 250 VAC. 5A - 30 VDC (resistive load) fuse protected: 5A. 250V quick blow fuse\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003etwo independent outputs. 0 - 22 mA (configuring as 0-20 mA or 4-20 mA)\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Output\u003cbr\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e0.1% f.s.\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Output\u003cbr\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e± 2% f.s.\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Logging\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e6000 pH\/°C or ORP samples\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e0 to 50°C?(32 to 122°F); RH max 85% non-condensing\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCasing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003eIP20 (housing); IP54 (front panel)\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e\u003csmall\u003e1.6 kg (3.5 lb.)\u003c\/small\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ctable class=\"spec_table mceItemTable\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth\u003eAccessories\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"http:\/\/www.hannainst.com\/usa\/prods2.cfm?id=035001\u0026amp;ProdCode=HI%2092500\" data-mce-href=\"http:\/\/www.hannainst.com\/usa\/prods2.cfm?id=035001\u0026amp;ProdCode=HI%2092500\"\u003eHI 92500\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eWindows® Compatible Software for Micro-processor-based Process Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eProbes\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"http:\/\/www.hannainst.com\/usa\/prods2.cfm?id=035001\u0026amp;ProdCode=HI%207610\" data-mce-href=\"http:\/\/www.hannainst.com\/usa\/prods2.cfm?id=035001\u0026amp;ProdCode=HI%207610\"\u003eHI 7610\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eStainless Steel Temperature Probe. Pt100 Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv\u003e\u003cstrong\u003eProduct Manuals\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"http:\/\/www.hannainst.com\/usa\/images\/icon-pdf.gif\" alt=\"\" width=\"20\" height=\"22\" align=\"absmiddle\" border=\"0\" data-mce-src=\"http:\/\/www.hannainst.com\/usa\/images\/icon-pdf.gif\"\u003e\u003cspan\u003e  Manual: \u003c\/span\u003e\u003ca title=\"Download Product Manual\" href=\"http:\/\/www.hannainst.com\/manuals\/manHI_504.pdf\" target=\"_blank\" data-mce-href=\"http:\/\/www.hannainst.com\/manuals\/manHI_504.pdf\"\u003eDownload\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv id=\"TabbedPanels1\" class=\"TabbedPanels\"\u003e\u003cdiv class=\"TabbedPanelsContentGroup\"\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":4857326981,"sku":"HI 504224-2","price":1482.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0931\/0956\/products\/hi504_20052ef4b2824c68_2015.jpeg?v=1465536922","url":"https:\/\/acornsci.co.nz\/products\/hi-504224-2","provider":"Acorn Scientific","version":"1.0","type":"link"}