Hach 6120118 User's Manual
Contents
1. 227 4224 By Fax 970 669 2932 By Mail Hach Company P O Box 389 Loveland Colorado 80539 0389 U S A Ordering information by e mail orders hach com Information Required e Hach account number if available e Billing address Your name and phone number e Shipping address e Purchase order number e Catalog number e Brief description or model number e Quantity International Customers Hach maintains a worldwide network of dealers and distributors To locate the representative nearest you send an e mail to intl hach com or contact Hach Company World Headquarters Loveland Colorado U S A Telephone 970 669 3050 Fax 970 669 2932 Technical and Customer Service U S A only Hach Technical and Customer Service Department personnel are eager to answer questions about our products and their use Specialists in analytical methods they are happy to put their talents to work for you Call 1 800 227 4224 or e mail techhelp hach com 39 Section 10 Repair Service Authorization must be obtained from Hach Company before sending any items for repair Please contact the Hach Service Center serving your location In the United States Hach Company Ames Service 100 Dayton Avenue Ames lowa 50010 800 227 4224 U S A only FAX 515 232 3835 In Canada Hach Sales amp Service Canada Ltd 1313 Border Street Unit 34 Winnipeg Manitoba R3H 0X4 800 665 7635 Canada only Telephone 204 632 55982. 3 2 2 1 Attaching the Digital Gateway with a Quick Connect Fitting in a Hazardous Location 16 3 3 Connecting the Sensor to the sc1000 seen sn tenerent sin ee erri nnne rennes 16 3 3 1 Connecting the Sensor using the Quick connect Fittings iese esse ee ee AA Ge ee Re AA ee ee ee ee AA ee Re ee 16 3 4 Mounting the Digital Gateway iii 17 Section 4 User Interface and Navigation ee ee AA ee ee 19 4 1 Usinditne sci00 Gontrollef arrierat aian iii ee ie 19 4 1 1 Controller Display Features iii 20 4 1 2 mportant Key Presses seat aan ann ii 20 4 2 Using the sc1000 Controller suisses 21 Ee Ed WA VG ence ue ne el e bed SED ue N D el el de 21 4 2 1 1 Using the Pop up Toolbar usine 21 4 2 1 2 Using the Menu Windows issues 21 4 2 1 3 Navigating the Menu Windows sise 22 Section 5 Operation AR EE da o td IE N OE de OE OO PR nt 25 meg REI 25 5 2 Sensor Data Eoggings scie ne Eoo Eb den este iie nd te rh entere RE 25 5 6 PH ierdie rule AE AR AL petens teens EE OE AE OR IE EA AE ns 28 5 6 1 One Point Automatic Calibration si coco rette ERK Ee ee P VR GO RE sahen 28 5 6 2 Two Point Automatic Calibration iii 28 5 6 3 One Point Manual Calibration usines 29 5 6 4 Two Point Manual Calibration iii 29 5 7 ORP Calibrations dette IR tede ee eee ten n ea nae ERR de aee tide eden nn e re ea ERR e RU ua 30 5 7 1 One point Manual Ca
3. SETUP and confirm 2 Select the appropriate sensor if more than one is attached and confirm 3 Select CALIBRATE and confirm 4 Select 2 POINT AUTO Select the available Output Mode Active Hold or Transfer from the list box and confirm 5 Move the clean probe to Buffer 1 and confirm 6 Confirm when stable 7 Move the clean probe to Buffer 2 and confirm 8 Confirm when stable A screen will display 2 Point Calibration Complete and the slope XX X mV pH 9 Return the probe to process 28 Operation 5 6 3 One Point Manual Calibration 8 From the Main Menu select SENSOR SETUP and confirm Select the appropriate sensor if more than one is attached and confirm Select CALIBRATE and confirm Select 1 POINT MANUAL Select the available Output Mode Active Hold or Transfer from the list box and confirm Move the clean probe to solution and confirm to continue Confirm when stable Edit the solution value using the keypad and confirm Confirm when stable A screen will display 1 Point Manual Complete and the slope XX X mV pH Return the probe to process 5 6 4 Two Point Manual Calibration From the Main Menu select SENSOR SETUP and confirm Select the appropriate sensor if more than one is attached and confirm Select CALIBRATE and confirm Select 2 POINT MANUAL CAL Select the available Output Mode Active Hold or Transfer from the list box and confirm Move the clean probe to Solution 1 and co
4. Sensor Data Logging The sc1000 controller provides a data log for each sensor The sc100 provides three data logs one for each sensor and one for calculated values The data logs store the measurement data at selected intervals The event log stores a variety of events that occur on the devices such as configuration changes alarms and warning conditions The data logs are stored in a packed binary format and the event logs are stored in a CSV format The logs can be downloaded through the digital network port service port or the IrDA port DataCom is needed for downloading logs to a computer 5 3 Sensor Diagnostics Menu for pH and ORP SELECT SENSOR if more than one sensor is attached STATUS ERROR LIST See section 7 1 on page 35 WARNING LIST See section 7 2 on page 35 5 4 pH Sensor Setup Menu SELECT SENSOR if more than one sensor is attached CALIBRATE Main Menu Item 1 POINT AUTO Calibration with a single buffer normally pH 7 2 POINT AUTO Calibration with two buffers normally pH 7 and pH 4 or 10 1 POINT MANUAL Calibration against a single known sample 2 POINT MANUAL Calibration against two samples both with a known pH TEMP ADJUST Adjust the displayed temperature by up to 15 C DEFAULT SETUP Restores the system to the original factory calibration CONFIGURE EDIT NAME Enter up to a 10 digit name in any combination of symbols and alpha or
5. pH or ORP TEMP UNITS Choose from the displayed options C or F LOG SETUP Choose SENSOR INTERVAL to set the sensor log interval or select TEMP INTERVAL to set the temperature log interval AC FREQUENCY is 50 or 60 Hz depending on the power line frequency for optimal noise rejection Default is FILTER Select 0 60 second signal averaging time TEMP ELEMENT Select type of temperature element from the displayed choices CAL DAYS Number of days since the last calibration Default notification at 60 days SENSOR DAYS Number of days the sensor has been in operation Default notification at 365 days IMPED LIMITS Set min max electrode sensor impedance limits DEFAULT SETUP Resets all user editable options to their factory defaults DIAG TEST Display the sensor type entered name of the sensor Default Digital Gateway serial number and PROBE INFO name the sensor serial number the software version number and the sensor driver version number CAL DATA Displays the slope and the date of the last calibration SENSOR SIGNAL displays the sensor output in mV SENSOR ADC COUNTS displays the sensor ADC counts TEMP ADC COUNTS shows raw data for temperature ADC counts ADC counts are comparable to A D counts and are for sensor electronic diagnostic purposes only SIGNALS ELECTRODE STATE Identifies the state of the electrode good or bad depending on whether the impedance is within preset limits ACTIVE ELECT Shows the impedance Mohms of t
6. the sensor reading to flash e Sensor calibration Relay timer washing cycle e Loss of communication Highlight the Sensor Diag menu and press ENTER Highlight Errors and press ENTER to determine the cause of the error Errors are defined in Table 6 Table 6 Error Codes Displayed Error Definition Resolution ADC FAILURE System measurement fails Contact Technical Consulting Services 7 2 Warnings A sensor warning will leave all menus relays and outputs functioning normally but will cause a warning icon to flash on the right side of the display Highlight the Sensor Diag menu and press ENTER to determine the cause of the warning A warning may be used to trigger a relay and users can set warning levels to define the severity of the warning Warnings are defined in Table 7 Table 7 Warning Codes Displayed Warning Definition Resolution PROBE OUT RANGE Measured pH ORP exceeds the expected value range Contact Technical Consulting Services TEMP OUT RANGE Measured temperature exceeds the expected value Contact Technical Consulting Services range FLASH FAILURE System flash memory write has failed Contact Technical Consulting Services REF ELECTRODE Standard Electrode is not performing within the required open Contact Technical Consulting Services specifications 7 3 Troubleshooting the pH or ORP Sensor Clean the sensor using the procedure described i
7. until Wait to Stabilize is displayed 4 Select LEAVE and confirm The display will return to the main measurement screen and the reading for both sensors will flash The calibration for both sensors are now running in the background 5 To return to the calibration of either sensor select SENSOR SETUP from the Main Menu and confirm Select the appropriate sensor and confirm 6 The calibration in progress will be displayed Continue with the calibration 30 Operation 5 9 Adjusting the Temperature View or change the temperature using the steps below 1 2 From the Main Menu select SENSOR SETUP and confirm Select the appropriate sensor if more than one is attached and confirm Select CALIBRATE and confirm Select TEMP ADJUST and confirm Select MEASURED TEMP and confirm The temperature will be displayed Select the temperature to edit and confirm 31 Visit us at www hach com Section 6 Maintenance DANGER Only gualified personnel should conduct the tasks described in this section of the manual DANGER Seul un technicien qualifi peut effectuer les t ches d installation d crites dans cette section du manuel DANGER Explosion hazard Do not connect or disconnect equipment unless power has been switched off or the area is known to be non hazardous DANGER Risque d explosion Couper le courant ou s assurer que l emplacement est designe non dangereux avant de replacer le aucon composant DAN
8. AME 1 7 00 mA SENSOR NAME 2 12 00 mA SENSOR NAME 1 pH 7 00 pH TEMP 22 9 C SENSOR NAME 2 pH 7 00 pH TEMP 22 9 C 20 Press the UP and DOWN keys to toggle the status bar at the bottom of the measurement display to display the secondary measurement temperature and output information 7 00 TEMP 23 0 C pH 7 00 OUTPUT 12 00 mA pH 7 00 OUTPUT2 12 00 mV pH When in Menu mode an arrow may appear on the right side of the display to indicate that more menus are available Press the UP or DOWN key corresponding to the arrow direction to display additional menus E gt SENSOR DIAG gt SENSOR SETUP gt SYSTEM SETUP D TEST MAINT SYSTEM SETUP SYSTEM SETUP SYSTEM SETUP D OUTPUT SETUP y DISPLAY SETUP T PSECURITY SETUP T P RELAY SETUP P SECURITY SETUP BLOG SETUP NETWORK SETUP P LOG SETUP D CALCULATION gt DISPLAY SETUP N PD CALCULATION 4i PD ERROR HOLD MODE User Interface and Navigation 4 2 Using the sc1000 Controller The sc1000 is a touch screen application Use your finger to touch keys and menu commands In normal operation the touch screen displays the measured values for the sensors selected 4 2 1 Display Features 4 2 1 1 Using the Pop up Toolbar The pop up toolbar provides access to the controller and sensor settings The toolbar is normally hidden from view To view the toolbar tou
9. Color 1 Data Blue 2 Data White 3 Service Request No Connection 4 12 V dc Brown 5 Circuit Common Black 6 Shield Shield grey wire in existing quick disconnect fitting Figure 8 Hard wiring the Digital Gateway Disconnect Power KA From Probe 3 2 2 Connecting the Digital Gateway to a sc100 Controller in a Hazardous Location DANGER The sc100 and certain versions of the sensor are suitable for use in Class 1 Division 2 Groups A B C D Hazardous Locations See Control Drawing 58600 78 in the sc100 Controller Manual Cat No 58600 18 for acceptable sensor versions and installation requirements DANGER Le sc100 et certaines versions du capteur peuvent tre utilis s dans des endroits dangereux de la Classe 1 Division 2 Groupes A B C D Reportez vous au sch ma de contr le 58600 78 du Manuel du contr leur sc100 R f 58600 18 pour conna tre les versions des capteurs admises et les conditions d installation DANGER Explosion hazard Do not connect or disconnect equipment unless power has been switched off or the area is known to be non hazardous DANGER Risque d explosion Couper le courant ou s assurer que l emplacement est designe non dangereux avant de replacer le aucon composant 15 Installation 3 2 2 1 Attaching the Digital Gateway with a Quick Connect Fitting in a Hazardous Location The digital gateway is supplied with a keyed quick connect fitting for easy attachment to the co
10. D Catalog Number 6120118 Digital PC sc and RC sc inch Combination pH ORP Sensor USER MANUAL October 2005 Edition 4 Hach Company 2004 2005 All rights reserved Printed in the U S A eac dp Visit us at www hach com Table of Contents Section 1 Specifications mue EE RE EE ar EE et ele pee 5 Section 2 General Information 7 2 1 Safety Information 22 1 0d aa ge E d AR AR EE RE N EK RE 7 2 1 1 Use of Hazard Information sise 7 2 1 2 Precautionary E de ER RR AE EE een deua aed ele nn rare 7 2 2 General Sensor Information eene en nnns nnn trenes sentirsi interire nenne nen nnns 8 2 2 1 Sensor Body Styles rise AN eee leah eee a ae nied uae e eg Da ee eel 8 2 3 Th Digital Gateway N OR OE ER N 9 2 4 Operating de EL AR EA ler besten n Prae OR OE D e Renan 9 SECTIONS Installation peer OR e EH EE N EE RE OR Eee 11 3 1 Wiring the sc Sensor to the Digital Gateway sienne 11 3 2 Connecting Wiring the Digital Gateway to the sc100 Controller urs4n0unnnennnnnennnnnnnnnnnnnnnnnnnn nenn 13 3 2 1 Connecting the Digital Gateway Sensor in a Non hazardous Location 13 3 2 1 1 Attaching the Digital Gateway with a Quick connect Fitting in a Non hazardous Location 13 3 2 1 2 Hard wiring the Digital Gateway to the sc100 nennen 14 3 2 2 Connecting the Digital Gateway to a sc100 Controller in a Hazardous Location sssssse 15
11. FAX 204 694 5134 E mail canada hach com In Latin America the Caribbean the Far East Indian Subcontinent Africa Europe or the Middle East Hach Company World Headquarters P O Box 389 Loveland Colorado 80539 0389 U S A Telephone 970 669 3050 FAX 970 669 2932 E mail intI hach com 40 Section 11 Limited Warranty Hach Company warrants its products to the original purchaser against any defects that are due to faulty material or workmanship for a period of one year from date of shipment unless otherwise noted in the product manual In the event that a defect is discovered during the warranty period Hach Company agrees that at its option it will repair or replace the defective product or refund the purchase price excluding original shipping and handling charges Any product repaired or replaced under this warranty will be warranted only for the remainder of the original product warranty period This warranty does not apply to consumable products such as chemical reagents or consumable components of a product such as but not limited to lamps and tubing Contact Hach Company or your distributor to initiate warranty support Products may not be returned without authorization from Hach Company Limitations This warranty does not cover Damage caused by acts of God natural disaster labor unrest acts of war declared or undeclared terrorism civil strife or acts of any governmental jurisdiction Dama
12. GER Explosion hazard Substitution of components may impair suitability for Class 1 Division 2 DANGER Risque d explosion La substitution de composants peut rendre ce materiel inacceptable pour les emplacements de Classe 1 Division 2 6 4 Maintenance Schedule Maintenance Task 90 days Annually Clean the sensor x Inspect sensor for damage x Calibrate Sensor if required by regulatory agency Per the schedule mandated by your regulatory agency 1 Cleaning frequency is application dependent More or less frequent cleaning will be appropriate in some applications 33 Maintenance 6 2 Cleaning the Sensor CAUTION Before cleaning with acid determine if the chemical reaction between the acid and the sample will create a hazardous chemical reaction For example do not put a sensor that is used in a cyanide bath directly into a strong acid for cleaning because this chemical combination may produce poisonous cyanide gas DANGER Acids are hazardous Always wear appropriate eye protection and clothing in accordance with material safety data sheet recommendations 1 Clean the exterior of the sensor with a stream of water If debris remains remove loose contaminate buildup by carefully wiping the entire measuring end of the sensor with a soft clean cloth Rinse the sensor with clean warm water 2 Prepare a mild soap solution of warm water and dish detergent or other non abrasive soap that does not contain
13. W Reject frequency Diagnostics DeviceDriver 40071 String 5 R Device driver 45 Modbus Register Information Table 8 Sensor Modbus Registers Group Name Tag Name Register Data Length R W Description Type Configuration CalWarningDays 40076 Integer 1 R W Calibration warning days Configuration SensorWarningDays 40077 Integer 1 R W Sensor warning days 46 Appendix B General pH Information B 1 pH Measurement Theory pH is the negative logarithm of the hydrogen ion activity and a measure of the acidity or alkalinity of a solution pH log A H pH is normally measured using a glass electrode and a reference electrode The glass electrode acts as a transducer converting chemical energy the hydrogen ion activity into an electrical energy measured in millivolts The reaction is balanced and the electrical circuit is completed by the flow of ions from the reference solution to the solution under test The electrode and reference solution together develop a voltage emf whose magnitude depends on the type of reference electrode the internal construction of the glass electrode the pH of the solution and the temperature of the solution This voltage is expressed by the Nernst Equation E E 2 3 RT F x log A H E E slope x log A H where E the emf of the cell E the zero potential isopotential of the system It depends on the intern
14. al construction of the glass and reference electrodes R gas constant T temperature in Kelvin A H activity of the hydrogen ion assumed to be equivalent to the concentration of hydrogen ions F Faraday constant For every unit change in pH or decade change in ion concentration the emf of the electrode pair changes by 59 16 mV at 25 C This value is known as the Nernstian Slope of the electrode The pH electrode pair is calibrated using solutions of known and constant hydrogen ion concentration called buffer solutions The buffer solutions are used to calibrate both the electrode isopotential and slope 47 General pH Information B 2 PID Controller Basics 48 A pH control loop operates as follows The pH meter measures the value of the pH in the effluent and if the pH is different from the setpoint the controller actuates the reagent pump or valve that adds reagent to a mixing tank The added reagent adjusts the pH value of the process The physical layout of the loop the sizing of the pump valve type of mixing tank and location of the pH electrodes all have a major impact on the ultimate performance of the loop after the controller is tuned for optimal performance The largest single performance factor is the delay time around the loop This includes the response time of the electrode meter time required to deliver the reagent to the process water time required for the reagent to mix with and react with th
15. ber the software version number and the sensor driver version number CAL DATA Displays the pH slope and the date of the last calibration SENSOR SIGNAL Displays the sensor output in mV SENSOR ADC COUNTS Displays the sensor ADC counts TEMP ADC COUNTS Displays raw data for temperature ADC counts ADC counts are comparable to A D counts and are for sensor electronic diagnostic purposes only SIGNALS ELECTRODE STATE Identifies the state of the electrode good or bad depending on whether the impedance is within preset limits ACTIVE ELECT Displays the impedance Mohms of the active electrode if Imped Status is set to Enabled IMPED STATUS Sensor diagnostic Choose Enabled or Disabled SENSOR DAYS Displays the cumulative days the sensor has been in use COUNTERS RESET SENSOR Allows the sensor counter to be reset to zero ELECTRODE DAYS Cumulative days the electrode has been in use Operation 5 5 ORP Sensor Setup Menu SELECT SENSOR if more than one sensor is attached CALIBRATE Main Menu Item 1 POINT MANUAL Calibration against a single known sample TEMP ADJUST Adjust the displayed temperature by up to 15 C DEFAULT SETUP Restores the system to the original factory calibration CONFIGURE EDIT NAME Enter up to a 10 digit name in any combination of symbols and alpha or numeric characters SELECT SENSOR Choose from the displayed sensor type
16. ce complies with Part 15 ofthe FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 ofthe FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense The following techniques of reducing the interference problems are applied easily 1 Disconnect the Controller from its power source to verify that it is or is not the source of the interference 2 Ifthe Controller is connected into the same outlet as the device with which it is interfering try another outlet 3 Move the Controller away from the device receiving the interfere
17. ch the bottom left of the screen Figure 14 Pop up Toolbar Functions E318 3 IY MAIN MENU displays the Main Menu Structure UP Arrow scrolls up to the previous displayed value Displays one value Displays two values at the same time Displays four values at the same time LIST displays the list of connected devices and sensors TEREE DOWN Arrow scrolls down to the next displayed value 4 2 1 2 Using the Menu Windows If the Menu button from the pop up toolbar is selected the Main Menu screen is opened The Main Menu screen allows the user to view the sensor status configure the sensor setup system setup and perform diagnostics The menu structure may vary depending on the configuration of the system 21 User Interface and Navigation Figure 15 Main Menu pe SENSOR STATUS SENSOR SETUP SYSTEM SETUP TESTIMAINT Display Area BACK FORWARD oO P eS mr ENTER confirms the entry or selection HOME changes to the display of measured values The pop up toolbar cannot open from the menu window To view the Main Menu from this display touch the Home button and then the bottom of the screen gt UP scrolls up DOWN scrolls down 4 2 1 3 Navigating the Menu Windows 22 To view a menu item touch the menu item
18. e Digital Gateway to the sc100 Controller DANGER The sc100 and certain versions of the sensor are suitable for use in Class 1 Division 2 Groups A B C D Hazardous Locations See Control Drawing 58600 78 in the sc100 Controller Manual Cat No 58600 18 for acceptable sensor versions and installation requirements DANGER Le sc100 et certaines versions du capteur peuvent tre utilis s dans des endroits dangereux de la Classe 1 Division 2 Groupes A B C D Reportez vous au sch ma de contr le 58600 78 du Manuel du contr leur sc100 R f 58600 18 pour conna tre les versions des capteurs admises et les conditions d installation The digital gateway should be wired to the sensor before connecting to the controller 3 2 1 Connecting the Digital Gateway Sensor in a Non hazardous Location 3 2 1 1 Attaching the Digital Gateway with a Quick connect Fitting in a Non hazardous Location Important Note The standard quick connect fitting is NOT suitable for Class 1 Division 2 Hazardous Location installations without the connector lock installed see section 3 2 1 on page 13 for more information The digital gateway is supplied with a keyed quick connect fitting for easy attachment to the controller see Figure 7 Retain the connector cap to seal the connector opening in case the sensor must be removed Optional extension cables may be purchased to extend the sensor cable length If the total cable length exceeds 100 m 328 ft a terminat
19. e process water and the time required to deliver the completely mixed water to the electrode If the delay times are too long or the mixing is not complete the control will be poor regardless of how well the controller is tuned The Process pH Meter uses a PID proportional integral reset derivative rate control control algorithm Each of the instrument settings along with their effects on the control loop are described below Mode Manual The manual output is specified in percent of full scale PID output 4 20 mA and is commonly used for testing the output device Auto Allows the process to be controlled automatically using information specified in the Phase Setpoint Proportional Band Integral and Derivative menus as follows Phase Direct The control output action will cause the process value to increase Reverse The control output action will cause the process value to decrease Setpoint The setpoint is defined as the desired process value in pH Proportional Band The proportional band is the range in pH from the setpoint value where the controller provides proportional control For example the desired setpoint for the process is pH 7 0 and the process requires that a reagent must be added to the process water to bring it up to pH 7 0 If the proportional band is set to pH 1 0 the controller will provide proportional output control over the range of pH 6 0 to 8 0 When the process is at pH 6 0 the controller will p
20. eping the process electrode and reference junction moist will avoid slow response when the sensor is placed back in operation For extended storage repeat the short term storage procedure every 2 to 4 weeks depending on the surrounding environmental conditions CAUTION If the pH process electrode breaks handle the sensor very carefully to prevent injury The process electrode at the pH sensor tip has a glass bulb which can break Do not subject this electrode to abrupt impact or other mechanical abuse The gold or platinum process electrode at the ORP sensor tip has a glass shank hidden by the salt bridge which can break Do not subject this electrode to impact or other mechanical abuse Visit us at www hach com Section 3 Installation DANGER Only gualified personnel should conduct the tasks described in this section of the manual DANGER Seul un technicien qualifi peut effectuer les t ches d installation d crites dans cette section du manuel The Combination pH ORP Sensor can be used with either an sc100 or sc1000 controller Refer to section 3 2 on page 13 for sc100 installation instructions and section 3 3 on page 16 for sc1000 installation instructions The sc sensor should be wired to the digital gateway before connecting the digital gateway to the sc100 or sc1000 Controller The digital gateway is designed to provide a digital interface to the appropriate digital controller Refer to section 3 1 for more informat
21. f any kind for breach of warranty or negligence 41 Visit us at www hach com Section 12 Product Safety Immunity Emissions Compliance Information Hach Company certifies this instrument was tested thoroughly inspected and found to meet its published specifications when it was shipped from the factory The Model sc100 Controller sc1000 Controller and the pH Combination sensor has been tested and is certified as indicated to the following instrumentation standards UL 61010A 1 ETL Listing 65454 CSA C22 2 No 1010 1 ETLc Certification 65454 Certified by Hach Co to EN 61010 1 Amds 1 amp 2 IEC1010 1 per 73 23 EEC supporting test records by Intertek Testing Services This equipment was tested for industrial level EMC per EN 61326 EMC Requirements for Electrical Equipment for Measurement Control and Laboratory Use per 89 336 EEC EMC Supporting test records by Hach Company certified compliance by Hach Company Standards include IEC 1000 4 2 1995 EN 61000 4 2 1995 Electrostatic Discharge Immunity Criteria B IEC 1000 4 3 1995 EN 61000 4 3 1996 Radiated RF Electromagnetic Field Immunity Criteria A IEC 1000 4 4 1995 EN 61000 4 4 1995 Electrical Fast Transients Burst Criteria B IEC 1000 4 5 1995 EN 61000 4 5 1995 Surge Criteria B IEC 1000 4 6 1996 EN 61000 4 6 1996 Conducted Disturbances Induced by RF Fields Criteria A IEC 1000 4 11 1994 EN 61000 4 11 1994 Voltage Dip Short Interrupt
22. g Temperature 20 to 60 C 4 to 140 F Visit us at www hach com Section 2 General Information 2 1 Safety Information Please read this entire manual before unpacking setting up or operating this equipment Pay attention to all danger and caution statements Failure to do so could result in serious injury to the operator or damage to the equipment To ensure that the protection provided by this equipment is not impaired do not use or install this equipment in any manner other than that specified in this manual This product is acceptable for use in a Hazardous Location when used with an sc100 Controller and installed per Control Drawing 58600 78 as described in the sc100 Controller Manual Cat No 5860018 2 1 1 Use of Hazard Information DANGER Indicates a potentially or imminently hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation that may result in minor or moderate injury Important Note Information that requires special emphasis Note Information that supplements points in the main text 2 1 2 Precautionary Labels Read all labels and tags attached to the instrument Personal injury or damage to the instrument could occur if not observed This symbol if noted on the instrument references the instruction manual for operation and or safety information This symbol when noted on a product enclosure or barrier i
23. ge caused by misuse neglect accident or improper application or installation e Damage caused by any repair or attempted repair not authorized by Hach Company Any product not used in accordance with the instructions furnished by Hach Company Freight charges to return merchandise to Hach Company Freight charges on expedited or express shipment of warranted parts or product Travel fees associated with on site warranty repair This warranty contains the sole express warranty made by Hach Company in connection with its products All implied warranties including without limitation the warranties of merchantability and fitness for a particular purpose are expressly disclaimed Some states within the United States do not allow the disclaimer of implied warranties and if this is true in your state the above limitation may not apply to you This warranty gives you specific rights and you may also have other rights that vary from state to state This warranty constitutes the final complete and exclusive statement of warranty terms and no person is authorized to make any other warranties or representations on behalf of Hach Company Limitation of Remedies The remedies of repair replacement or refund of purchase price as stated above are the exclusive remedies for the breach of this warranty On the basis of strict liability or under any other legal theory in no event shall Hach Company be liable for any incidental or consequential damages o
24. he active electrode if Imped Status is set to Enabled IMPED STATUS Sensor diagnostic Choose Enabled or Disabled SENSOR DAYS displays the cumulative days the sensor has been in use COUNTERS RESET SENSOR allows the sensor counter to be reset to zero ELECTRODE DAYS Cumulative days the electrode has been in use 27 Operation 5 6 pH Calibration The manufacturer offers one and two point automatic and manual calibrations for pH An automatic calibration identifies the buffer table corresponding to the chosen buffer and automatically calibrates the probe after it stabilizes manual calibration is performed by placing the pH sensor in any buffer or sample with a known value and then entering that known value into the controller The value of the sample used in the manual calibration may be determined by laboratory analysis or comparison reading 5 6 1 One Point Automatic Calibration 1 From the Main Menu select SENSOR SETUP and confirm 2 Select the appropriate sensor if more than one is attached and confirm 3 Select CALIBRATE and confirm 4 Select 1 POINT AUTO Select the available Output Mode Active Hold or Transfer from the list box and confirm 5 Move the clean probe to buffer and confirm to continue 6 Confirm when stable A screen will display 1 Point Auto Complete and the slope XX X mV pH 7 Return the probe to process 5 6 2 Two Point Automatic Calibration 1 From the Main Menu select SENSOR
25. ion 3 1 Wiring the sc Sensor to the Digital Gateway DANGER The sc100 and certain versions of the sensor are suitable for use in Class 1 Division 2 Groups A B C D Hazardous Locations See Control Drawing 58600 78 in the sc100 Controller Manual Cat No 58600 18 for acceptable sensor versions and installation requirements DANGER Le sc100 et certaines versions du capteur peuvent tre utilis s dans des endroits dangereux de la Classe 1 Division 2 Groupes A B C D Reportez vous au sch ma de contr le 58600 78 du Manuel du contr leur sc100 R f 58600 18 pour conna tre les versions des capteurs admises et les conditions d installation 1 Route the cable from the sensor through the strain relief in the digital gateway then properly terminate the wire ends see Figure 5 Note Do not tighten the strain relief until the digital gateway is wired and the two halves are threaded securely together 2 Insert the wires as shown in Table 3 and Figure 6 3 Make sure the O ring is properly installed between the two halves of the digital gateway and thread the two halves together Hand tighten 4 Tighten the strain relief to secure the sensor cable 5 Connect the digital gateway to the controller e sc100 Non hazardous Location section 3 2 1 1 on page 13 e sc100 Hazardous Location section 3 2 2 1 on page 16 sc1000 Connection Instructions Refer to section 3 3 on page 16 11 Installation Figure 5 Proper Wire Pre
26. ion box must be installed See Replacement Parts and Accessories on page 37 13 Installation Figure 7 Attaching the Digital Gateway using the Quick connect Fittings 3 2 1 2 Hard wiring the Digital Gateway to the sc100 Important Note Hard wiring the digital gateway to the sc100 is not an approved method for Class 1 Division 2 Hazardous Locations 1 Disconnect power to the controller if powered 2 Open the controller cover 3 Disconnect and remove the existing wires between the quick connect and terminal strip J5 see Figure 8 on page 15 4 Remove the quick connect fitting and wires and install the threaded plug on the opening to maintain the environmental rating 5 Cutthe connector from the sensor cable 6 Strip the insulation on the cable back 1 inch Strip 14 inch of each individual wire end Note Use of strain relief fitting other than Cat No 16664 may result in a hazard Use only the recommended strain relief fitting 7 Pass the cable through conduit and a conduit hub or a strain relief fitting Cat No 16664 and an available access hole in the controller enclosure Tighten the fitting 8 Reinstall the plug on the sensor access opening to maintain the environmental rating 9 Wire as shown in Table 4 and Figure 8 10 Close and secure the cover 14 Installation Table 4 Wiring the Sensor at Terminal Block J5 Terminal Number Terminal Designation Wire
27. ions Criteria B Additional Immunity Standard s include ENV 50204 1996 Radiated Electromagnetic Field from Digital Telephones Criteria A This equipment was tested for Radio Frequency Emissions as follows Per 89 336 EEC EMC EN 61326 1998 Electrical Equipment for measurement control and laboratory use EMC requirements Class A emission limits Supporting test records by Hewlett Packard Fort Collins Colorado Hardware Test Center A2LA 0905 01 and certified compliance by Hach Company Standards include EN 61000 3 2 Harmonic Disturbances Caused by Electrical Equipment EN 61000 3 3 Voltage Fluctuation Flicker Disturbances Caused by Electrical Equipment Additional Emissions Standard s include EN 55011 CISPR 11 Class A emission limits 43 Compliance Information Canadian Interference causing Equipment Regulation IECS 003 Class A Supporting test records by Hewlett Packard Fort Collins Colorado Hardware Test Center A2LA 0905 01 and certified compliance by Hach Company This Class A digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe A respecte toutes les exigences du R glement sur le matEriel brouilleur du Canada FCC PART 15 Class A Limits 44 Supporting test records by Hewlett Packard Fort Collins Colorado Hardware Test Center A2LA 0905 01 and certified compliance by Hach Company This devi
28. lanolin Note Lanolin will coat the glass process electrode and can adversely affect sensor performance 3 Soak the sensor for 2 to 3 minutes in the soap solution 4 Use a small soft bristle brush and scrub the entire measuring end of the sensor thoroughly cleaning the electrode and reference junction surfaces If surface deposits cannot be removed by detergent solution cleaning use muriatic acid or other dilute acid to dissolve them The acid should be as dilute as possible do not use stronger than 3 HCL Experience will determine which acid to use and the appropriate dilution ratio Some stubborn coatings may require a different cleaning agent For assistance contact Technical and Customer Service U S A only on page 39 5 Soakthe entire measuring end of the sensor in dilute acid for no more than 5 minutes Rinse the sensor with clean warm water then place the sensor back into the mild soap solution for 2 to 3 minutes to neutralize any remaining acid 6 Remove the sensor from the soap solution and rinse the sensor again in clean warm water 7 After cleaning always calibrate the measurement system Refer to section 4 7 on page 25 or section 4 8 on page 29 34 Section 7 Troubleshooting 7 1 Error Codes When a sensor is experiencing an error condition the sensor reading on the measurement screen will flash and all relays and analog outputs associated with this sensor will be held The following conditions will cause
29. lat surface See Figure 10 for dimensions Use an appropriate fastener to secure it to the wall see Figure 11 After the sensor is wired to the digital gateway and the two halves are threaded together place the mounting clip over the center of the digital gateway and squeeze the clip together to secure Figure 10 Digital Gateway Dimensions TN SpA 34 29 mm 184 15 mm 7 25 inches 1 35 inches Figure 11 Mounting the Digital Gateway C oO wmm Mm Pun 40 6 mm 1 60 inches Ls 1 mm 0 83 inches 2 21 inches 1 Mounting Clip 3 Hex Nut 4 28 2 Screw pan head 4 28 x 1 25 in 4 Mount clip insert digital gateway squeeze clip closed 17 Visit us at www hach com Section 4 User Interface and Navigation 4 1 Using the sc100 Controller The front of the controller is shown in Figure 12 The keypad consists of the eight keys described in Table 5 Figure 12 Front of the Controller sc100 1 Instrument display 5 IrDA window 2 BACK key 6 HOME key 3 MENU key 7 ENTER key 4 RIGHT LEFT UP and DOWN keys Table 5 Controller Key Functions Features Number Key Function 2 Moves back one level in the menu structure 3 Moves to the main menu from other menus This key is not active in menus where a selection or other input must be made 4 Navigates thr
30. libration sise 30 5 8 Concurrent Calibration of Two Sensors for pH and ORP iii 30 5 9 Adjustirig the TemperatUre eiecit nd nl HE cio OO EE Dan que 31 Section 6 Maintenance een 33 6 1 Maintenance Schedule eere e ina d ica eue ua e en nen 33 6 2 Cleaning the Sensor m ea OE RE ER EE dado EE OE inde D 34 Section 7 Troubleshooting Ge AA ee AR RA AG ee enhn inner inttr tenni rentre rris nnns rennes 35 TIEM COGS 55 Mm 35 WERNER s ui t itu e oa uec 35 Table of Contents 7 3 Troubleshooting the pH or ORP Sensor iii 35 Section 8 Replacement Parts and Accessories nennen 37 8 1 Replacement Items Accessories and Reagent and Standards 2240444240044snnunnnnnnnnnnnennnnnnnnnnnnnnnannnn 37 Section 9 How to Order ten ee rene el eve 39 Section 10 Repair Service aaea ed eda eee EEE 40 Section 11 Limited Warranty 4 EE ne den ava 41 Section 12 Compliance Information nennen nnne ee ee n nnne nnne ns 43 B pH Measurement Theory OE RE EE N ER RE HER be Pe page per eed RIN 47 B 2 PID G ntrolleriB sics u ee eter eese N eu ea dag d a TR RR Maced dg 48 Section 1 Specifications Specifications are subject to change without notice Table 1 Combination pH and ORP Sen
31. n section 6 2 on page 34 and then calibrate the sensor as shown in section 4 7 on page 25 or section 4 8 on page 29 If the measuring system cannot be calibrated after cleaning contact Technical and Customer Service U S A only on page 39 35 Visit us at www hach com Section 8 Replacement Parts and Accessories 8 1 Replacement Items Accessories and Reagent and Standards ORP Standard Solution 200 mV ORP Standard Solution 600 mV ORP Standard Solution 200 mV ORP Standard Solution 600 mV 500 mL 1 pint 500 mL 1 pint 1 gallon 1 gallon Item Description QTY Catalog Number Instruction manual Combination pH System English each 6120118 Cable sensor extension 1 m 3 ft each 6122400 Cable sensor extension 7 7 m 25 ft each 5796000 Cable sensor extension 15 m 50 ft each 5796100 Cable sensor extension 31 m 100 ft each 5796200 Connector Safety Lock each 6139900 Termination box each 586700 Plug sealing conduit opening each 5868700 Strain relief Heyco each 16664 Buffer pH 7 500 mL 1 pint 2283549 Buffer pH 4 500 mL 1 pint 2283449 Buffer pH 10 500 mL 1 pint 2283649 Buffer pH 7 1 gallon 2283556 Buffer pH 4 1 gallon 2283456 Buffer pH 10 1 gallon 2283656 25M2A1001 115 25M2A1002 115 25M2A1001 123 25M2A1002 123 37 Visit us at www hach com Section 9 How to Order U S A Customers By Telephone 6 30 a m to 5 00 p m MST Monday through Friday 800 227 HACH 800
32. nce 4 Reposition the receiving antenna for the device receiving the interference 5 Try combinations of the above Appendix Modbus Register Information Table 8 Sensor Modbus Registers Register Data Group Name Tag Name Type Length R W Description Tags SensorMeasTag 40001 Integer 1 R Sensor measurement tag Measurements pHMeas 40002 Float 2 R pH ORP measurement Tags TempMeasTag 40004 Integer 1 R Temperature measurement tag Measurements TempDegCMeas 40005 Float 2 R Temperature measurement Configuration SensorName 40007 String 6 R W Sensor name Tags FuncCode 40013 Integer 1 R W Function code tag Tags NextState 40014 Integer 1 R W Next state tag Configuration MeasType 40015 Integer 1 R W Measurement type pH or ORP Configuration TempUnits 40016 Integer 1 R W Temperature units C or F Configuration pHFormat 40017 Integer 1 R W pH display format Configuration TaggedPhFormat 40018 Long 2 R pH display tagged format Configuration Filter 40020 Integer 1 R W Sensor filter Configuration TempElementType 40021 Integer 1 R W Temperature element type Tags TempUserValueTag 40022 Integer 1 R Temperature user value tag Configuration TempUserDegCValue 40023 Float 2 R W Temperature user value Configuration pHBuffer 40025 Integer 1 R W pH buffer type Configuration PureWaterCompType 40026 Integer 1 R W Pu
33. ndicates that a risk of electrical shock and or electrocution exists This symbol if noted on the product indicates the need for protective eye wear This symbol when noted on the product identifies the location of the connection for Protective Earth ground OO Bp This symbol when noted on the product identifies the location of a fuse or current limiting device General Information 2 2 General Sensor Information Optional equipment such as mounting hardware for the probe is supplied with instructions for all user installation tasks Several mounting options are available allowing the probe to be adapted for use in many different applications 2 2 1 Sensor Body Styles Combination pH and ORP sensors are available in three body styles Convertible Body Style Figure 1 and Figure 2 has in NPT threads at both ends of the body for mounting in any of the following configurations into a standard in NPT pipe tee e onto the end of a pipe for immersion into a vessel Insertion Body Style Figure 3 for mounting into the pipe adapter of a ball valve hardware assembly This hardware enables the sensor to be inserted into or retracted from the process without stopping the process flow Sanitary Body Style Figure 4 features a built in 2 in flange for mounting into a 2 in sanitary tee Included with the sanitary style sensor is a special cap and EDPM compound gasket for use with the sanitar
34. nfirm Confirm when stable Edit the solution value using the keypad and confirm Move probe to solution 1 and confirm Confirm when stable Edit the solution value using the keypad and confirm A screen will display 2 Point Manual Cal Complete and the slope XX X mV pH 10 Return the probe to process 29 Operation 5 7 ORP Calibration 5 7 1 One point Manual Calibration The manufacturer offers a one point manual calibration for ORP The value of the sample used in the manual calibration may be determined by laboratory analysis or comparison reading 1 From the Main Menu select SENSOR SETUP and confirm 2 Select the appropriate sensor if more than one is attached and confirm 3 Select CALIBRATE and confirm 4 Select 1 POINT MANUAL CAL Select the available Output Mode Active Hold or Transfer from the list box and confirm 5 Move the clean probe to Solution and confirm 6 Confirm when stable Edit the solution value using the keypad and confirm 7 A screen will display 1 Point Manual Complete and the slope XX X mV 8 Return the probe to process 5 8 Concurrent Calibration of Two Sensors for pH and ORP 1 Begin a calibration on the first sensor and continue until Wait to Stabilize is displayed 2 Select LEAVE and confirm The display will return to the main measurement screen The reading for the sensor currently being calibrated will flash 3 Begin the calibration for the second sensor and continue
35. ntroller see Figure 7 on page 14 For Hazardous Locations a connector safety lock Cat No 6139900 must be installed Retain the connector cap to seal the connector opening in case the sensor must be removed 1 Remove the connector cap from the sc100 controller Retain the connector cap to seal the connector opening in case the sensor must be removed 2 Connect the digital gateway connector to the sensor plug on the sc100 3 Install the connector safety lock Figure 9 Align the lock over the connector and squeeze the two halves together to lock To remove the connector safety lock insert a small flat blade screwdriver into the locking groove Pivot the screwdriver away from the groove and separate the two halves Figure 9 Figure 9 Installing the Connector Safety Lock 38 1 mm pom N o gt N 38 1 mm 1 50 inches 3 3 Connecting the Sensor to the sc1000 3 3 1 Connecting the Sensor using the Quick connect Fittings 1 Unscrew the connector cap from the controller Retain the connector cap to seal the connector opening in case the sensor must be removed 2 Push the digital gateway connector into the socket 3 Hand tighten the union nut Note Do not use the middle connection for the sensors as this is reserved for the display module 16 Installation 3 4 Mounting the Digital Gateway The digital gateway is supplied with a mounting clip for mounting to a wall or other f
36. numeric characters SELECT MEASURE Select the appropriate measurement units to display DISPLAY FORMAT Select the measurement resolution xx xx pH or xx x pH TEMP UNITS Choose from the displayed options C or F LOG SETUP Choose SENSOR INTERVAL to set the sensor log interval or select TEMP INTERVAL to set the temperature log interval 25 Operation 5 4 pH Sensor Setup Menu continued CONFIGURE continued 26 REJECT FREQ a 50 or 60 Hz depending on the power line frequency for optimal noise rejection Default is FILTER Select 0 60 second signal averaging time TEMP ELEMENT Select type of temperature element from the displayed choices SELECT BUFFER Select the buffer type standard 4 7 10 or DIN 19267 from the displayed choices Allows the user to specify that ammonia morpholine or other user defined electrolyte is being PURE H20 COMP used in the application allowing a temperature dependent linear slope factor to be applied to the measured pH CAL DAYS Number of days since the last calibration Default notification at 60 days SENSOR DAYS Number of days the sensor has been in operation Default notification at 365 days DEFAULT SETUP Resets all user editable options to their factory defaults DIAG TEST Display the sensor type entered name of the sensor Default Digital Gateway serial number and PROBE INFO name the sensor serial num
37. nutes the integral action of the controller will add an additional 5 to the controller output level over a 5 minute interval The integral action is additive so for every 5 minute interval an additional 5 is added to the controller s output level This will allow the controller to bring the process to the desired setpoint level Note that the longer the integral time setting the longer it takes for the integral action to affect the process The integral control action is disabled by setting it to zero Note that the integral time is in minutes Derivative Derivative control is used to adjust the control output level based upon the rate at which the process value is approaching or passing the setpoint Derivative control action would be used in cases where the process value can rapidly ramp up and overshoot the setpoint The derivative setting is in minutes The output action of the derivative control is equal to the rate of change ofthe process in pH units per minute times the derivative time divided by the proportional band times negative one For example if the process pH is changing at a rate of pH 0 20 per minute the derivative time is set to 3 0 minutes the proportional band is setto pH 0 80 and the action is direct the derivative control output action will be approximately equal to 0 20 pH minute X 3 0 minute 0 80 pH 75 During calibration the analog outputs can remain active be held or be transferred to a preset mA
38. or use the UP and DOWN keys to highlight the item The menu item remains highlighted for approximately 4 seconds after it is selected To view the highlighted command select the area to the left of the menu item or select the ENTER button A next to a menu command indicates there is a submenu Touch the to view the submenu An i next to a menu command indicates it is information only If a menu item is editable highlight the item and touch the far left part of the menu item until it is highlighted and press ENTER or double tap the highlighted item A keypad will be displayed to change an entry Figure 17 on page 23 or a list box will be displayed Figure 18 on page 24 Messages are displayed in the message window Figure 19 on page 24 If an entry is incorrect repeat the entry with the correct values If the entry is outside the working range a correction to the entry is made automatically User Interface and Navigation Figure 16 Changing a Menu Item 0 9 lt gt v M DATE TIME FORMAT MM DD YYYY A DATE 2004 11 27 TIME 08 49 39 M dr 1 Display Area 5 HOME changes to the display of measured values 2 BACK 6 UP scrolls up 3 FORWARD 7 DOWN scrolls down 4 ENTER confirms the entry or selection Figure 17 Keypad EE E E Enters numbers or the character as shown on the b
39. ough the menus changes settings and increments and decrements digits 5 Moves to the Main Measurement screen from any other screen This key is not active in menus where a selection or other input must be made 6 Accepts an input value updates or accepts displayed menu options 19 User Interface and Navigation 4 1 1 Controller Display Features Figure 13 When a sensor is connected and the controller is in measurement mode the controller automatically identifies the connected sensors and displays associated measurements The display will flash on startup when a sensor error has occurred and when a sensor is being calibrated An active system warning will cause the warning icon a triangle with an exclamation point inside to be displayed on the right side of the display See Figure 13 Display 1 Status bar Indicates the sensor name and status of relays The relay 4 Parameter letter is displayed when the relay is energized 3 Secondary measurement if applicable 6 Measurement units 4 1 2 Important Key Presses e Press HOME then the RIGHT or LEFT key to display two readings when two sensors are connected Continue to press the RIGHT or LEFT key to toggle through the available display options as shown below RTC MM DD YY 24 00 00 OUTPUT1 12 00 mA SENSOR NAME 1 700 TEMP 22 9 C SENSOR NAME 2 7 00 p TEMP 22 9 C SENSOR N
40. paration and Insertion 1 LT 1 Strip inch of insulation 2 Seat insulation against connector with no bare wire exposed Figure 6 Wiring and Assembling the Digital Gateway 1 Digital gateway front 7 Cord grip 2 O ring From sensor 3 Sensor wire connector Insert wires into connector according to Table 3 Use the included 2 mm screwdriver Cat No 6134300 to secure connections Digital gateway back 10 Screw back of digital gateway onto front 5 Cable bushing 6 Anti rotation washer 11 Push cable bushing and anti rotation washer into back 12 Fasten cord grip securely Assembly is complete 12 Installation Table 3 Wiring the Digital Gateway Cat No 6120800 Sensor wire color Sensor Signal without Ground Rod Sensor Signal with Ground Rod Digital Gateway Metal Braid Jumper 2 from J3 1 to J3 33 Ref J3 1 White Temp Temp J3 2 Red Temp Temp J3 3 Blue Ref Solution Ground J3 4 Clear Active Measuring Active Measuring J1 5 not used not used not used J1 6 1 Some applications require the use of an external ground rod with the combination electrode Use this wiring scheme for these applications 2 f Metal Braid is tinned cut the tinned area off and twist the wire to insert into connector 3 Customer supplied required 3 2 Connecting Wiring th
41. re H2O compensation type Configuration PureWaterCompUser 40027 Float 2 R W Pure H2O compensation user val Calibration OutputMode 40029 Integer 1 R W Output mode Calibration CalLeave 40030 Integer 1 R W Cal leave mode Calibration CalAbort 40031 Integer 1 R W Cal abort mode Tags CalEditValueTag 40032 Integer 1 R Cal edit value tag Calibration CalEditPhValue 40033 Float 2 R W Cal edit value Diagnostics pHSlope 40035 Float 2 R pH slope Diagnostics SoftwareVersion 40037 String 6 R Software version Diagnostics SerialNumber 40043 String 6 R Serial number Diagnostics pHOffset 40049 Float 2 R pH offset Diagnostics OrpOffset 40051 Float 2 R Orp offset Calibration CalCode 40053 Integer 1 R Cal code Configuration SensorLoginterval 40054 Integer 1 R W Sensor data log interval Configuration TempLoginterval 40055 Integer 1 R W Temperature data log interval Diagnostics pHmV 40056 Float 2 R pH mV Diagnostics ProdDate 40058 Date 2 R W Production date Diagnostics StdElectrode 40060 Float 2 R Standard electrode impedance Diagnostics RefElectrode 40062 Float 2 R Reference electrode impedance Diagnostics LastCalDate 40064 Date 2 R Last calibration date Diagnostics SensorDays 40066 Integer 1 R Sensor running days Diagnostics ElectrodeDays 40067 Integer 1 R Electrode running days Diagnostics ElectrodeStatus 40068 Integer 1 R Electrode status Diagnostics SensorType 40069 Integer 1 R Sensor type Configuration RejectFrequency 40070 Integer 1 R
42. rovide a 10096 control output level assuming that Phase is set to Direct When the process is at pH 7 0 the proportional control will provide a 096 control output level When the process is at pH 6 5 the proportional control will provide a 5096 output The output action is equal to the difference between the setpoint and the process value divided by the proportional band value General pH Information Integral The integral value is used to reduce the steady state error between the process value and the setpoint to zero For example assume a process can be manually controlled at a level of pH 8 0 by sending a 35 control output level to a reagent pump Now say that the system is set up for the controller to provide proportional only control with the controller setpoint set to pH 8 0 and the proportional band set to pH 1 0 Note that the nearerthe process gets to the pH 8 0 setpoint the lower the control output level is In fact when the process is at pH 8 0 the output level will be 0 Since the process requires that the pump be operated at 35 for the process to reach pH 8 0 its apparent that proportional only control will never quite reach the desired setpoint of pH 8 0 This is where the integral control comes in Integral control can be thought of as adding up the output action from the proportional control over time For example the proportional control output reaches a steady state level of 5 If the integral time is set to five mi
43. sor Specifications Components Corrosion resistant materials fully immersible probe with 4 6 m 15 ft cable Measuring Range pH 0 to 14 pH Measuring Range ORP 2000 to 2000 mV Measuring Range Temperature 0 to 105 C 32 to 221 F Probe Operating Temperature 0 to 105 C 32 to 221 F Probe Storage Temperature 30 to 70 C 22 to 158 F 0 to 95 relative humidity non condensing Temperature Compensation pH Pt 1000 ohm RTD ORP N A Accuracy Analyzer only pH 0 196 of span ORP Limited to calibration solution accuracy 20 mV Stability Analyzer only 0 05 or span per 24 hours non cumulative Repeatability Analyzer only 0 196 of span or better Temperature Accuracy Analyzer only Temperature Drift Analyzer only 0 5 C 0 9 F Zero and Span less than 0 03 of span per C Calibration Methods Analyzer only Two point automatic one point automatic two point manual one point manual Maximum Probe Immersion Depth Pressure Submersible to 107 m 350 ft 1050 kPa 150 psi Sensor Interface Modbus from digital gateway Probe Cable Length 4 6 m 15 ft Probe Weight Depends on selected sensor Probe Dimensions See Figure 1 on page 8 through Figure 4 on page 9 Table 2 Digital Gateway Specifications Weight 145 g 5 oz Dimensions 17 5 x 8 4 cm 7 x 19 in Operatin
44. utton Moves the cursor one position to the left or to the right Increase Decrease a number or letter at the cursor position Keep the button pressed to change the numbers characters continuously Deletes the character to the left of the cursor CANCEL cancels the entry 6 ENTER confirms the entry or selection 23 User Interface and Navigation Figure 18 List Box 1 TTTJ7I g l ppm mE E m 1 FNU Scrolls up or down 2 CANCEL cancels and entry 3 ENTER confirms a selection Figure 19 Message window 2 Q 1 Scrolls up or down 2 Displays the messages or warnings 3 Displays details on the selected entry 4 This button changes back to the previous display 5 ENTER confirms an entry 6 CANCEL cancels an entry 24 Section 5 Operation 5 1 Sensor Setup When a sensor is initially installed the serial number of the Digital Gateway will be displayed as the sensor name To change the sensor name refer to the following instructions 1 Select Main Menu 2 From the Main Menu select SENSOR SETUP and confirm 3 Highlight the appropriate sensor if more than one sensor is attached and confirm 4 Select CONFIGURE and confirm 5 Select EDIT NAME and edit the name Confirm or cancel to return to the Sensor Setup menu 5 2
45. value 49 Visit us at www hach com B Buttons LISb DOX scis et IE EE 23 Toolbar M eI 21 C Cleaning SENSOREN b etnia et 34 Compliance Information 43 D Derivative ae N EN 48 Derivative Rate Control esse ese ee ee ke ee ee 48 DISplay EE EE EA N OE EN 20 E Entries Meret u EE ial cde 22 Error ete 35 l Integral 1 ER faa S E 48 Integral Reset nasar ee Ee ee ee Ge de ee ee nn 48 K Key FUNCIONS e c es Ta tot 19 L List DOX i sisi EE EE er Pom ege 23 M Maintenance Schedule sss 33 Menu command Marking 228888 nante pda 21 22 Menu WINGOWS eco teen 21 N Normal operation ee Re Re AA ee 21 P Parts Replacement Ardara kiei Re ke ee Ee 37 PID control Proportiorial ie EE nt tnt 48 Proportional nern 48 Proportional Band ese ee ese ee ee ER ee Re ee ee ee 48 S Safety Information iese ee ee AA ee ee ee 7 Sensor Cable Connecting EE eni petes 13 ee ER EE EE N rss 13 ITer Tei forie N 5 T FOOIDAT ar OE EE EE age 21 W Warmings x t teme eed eigen 35 Warranty etuer EN xtd 41 51 Visit us at www hach com
46. y hardware Figure 1 Convertible Style Sensor with Flat Electrode 4 inch NPT Typical EE Ns 22 2 mm 0 875 inch Y 22 9 mm 0 90 inch 7 62 mm 1 30 inches 149 9 mm 5 9 inches Figure 2 Convertible style Sensor with Dome Electrode inch NPT Typical 22 9 mm 0 90 vn 7 62 mm 1 30 inches 4 149 9 mm 5 9 inches 22 2 mm 0 875 inch A ae a Figure 3 General Information Insertion Style Sensor with Domed Electrode 22 2 mm 0 875 inches mum Figure 4 Sanitary style Sensor 22 2 mm 0 875 inches 49 1 mm 1 96 inches 22 mm 0 87 inches BN ES 2 AX N 88 9 mm 3 5inches 187 3 mm 7 37 inches 2 3 The Digital Gateway The digital gateway was developed to provide a means to use existing analog sensors with the new digital controllers The gateway contains all the necessary software and hardware to interface with the controller and output a digital signal 2 4 Operating Precaution Before placing the pH or ORP sensor into operation remove the protective cap to expose the process electrode and reference junction Save the protective cap for future use For short term storage when sensor is out of the process for more than one hour fill the protective cap with pH 4 buffer or DI water and place the cap back on the sensor Ke
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