51775-18
Laboratory
pH/ISE Meter
Instruction Manual
© Hach Company, 1999. All rights reserved. Printed in the U.S.A.
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Page 1: ...51775 18 Laboratory pH ISE Meter Instruction Manual Hach Company 1999 All rights reserved Printed in the U S A te dk 1 02 2ed ...
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Page 3: ...d Computer Connections 23 2 5 Turning the Meter On 23 2 6 Temperature Measurement 23 2 7 Millivolt Measurements 24 SECTION 3 INSTRUMENT OPERATION 25 3 1 Setup Menu 25 3 1 1 Choosing the Probe Connector 25 3 1 2 Turning Display Lock Off and On 26 3 1 3 Selecting Temperature Units 26 3 1 4 Selecting Measurement Resolution 27 3 1 5 Selecting Auto Buffer Recognition 27 3 1 6 Selecting Stability Criter...
Page 4: ...Printers Computers 45 5 1 1 Connecting with the RS232 Cable 45 5 1 2 Connecting to a Printer 45 5 1 3 Connecting to a Personal Computer 46 5 2 Sending Data to Printers Computers 48 5 2 1 Printing Data at Intervals 48 5 2 2 Sending Currently Displayed Data 48 5 2 3 Sending Recalled Data Points 49 5 2 4 Sending All Stored Data and the Average pH Value 49 5 2 4 1 Printed Data Format 50 5 2 5 PC Contr...
Page 5: ...98 Electrical Equipment for measurement control and laboratory use EMC requirements Supporting test records by Hach Company certified compliance by Hach Company Standards include IEC 1000 4 2 1995 EN 61000 4 2 1995 Electro Static Discharge Immunity Criteria B IEC 1000 4 3 1995 EN 61000 4 3 1996 Radiated RF Electro Magnetic Fields Criteria B IEC 1000 4 4 1995 EN 61000 4 4 1995 Electrical Fast Trans...
Page 6: ...R 11 Emissions Class B Limits Additional Emissions Standard s include CANADIAN INTERFERENCE CAUSING EQUIPMENT REGULATION IECS 003 Class A emission limits Supporting test records by Hewlett Packard Hardware Test Center Ft Collins CO A2LA 0905 01 certified compliance by Hach Company This Class A digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet a...
Page 7: ...rated 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 e...
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Page 9: ...9 SAFETY PRECAUTIONS Section 2 2 on page 21 Section 2 3 on page 21 Section 2 4 on page 23 Section 5 1 on page 45 ...
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Page 11: ...ccuracy 0 3 C from 0 70 C 1 0 C from 70 110 C Display Custom LCD Inputs 2 BNC two 5 pin Hach pH temperature or Hach temperature probe 2 pin tip one combination input type for each of the two channels or two half cells per channel Outputs Two way RS232 Power Requirements 6 9 VDC provided by 120 V 50 60 Hz or 230 V 50 Hz external power supply or a customer provided supply with 50 mA output 5 5 mm po...
Page 12: ...PECIFICATIONS continued Environmental Requirements 0 to 50 C at 85 non condensing relative humidity Enclosure is water resistant chemical resistant dust proof Dimensions 25 4 x 15 x 8 37 10 15 x 6 x 3 35 in ...
Page 13: ...uede ser peligrosa Revise las fichas de seguridad de materiales y familiarícese con los procedimientos de seguridad antes de manipular productos químicos GEFAHR Das Arbeiten mit chemischen Proben Standards und Reagenzien ist mit Gefahren verbunden Es wird dem Benutzer dieser Produkte empfohlen sich vor der Arbeit mit sicheren Verfahrensweisen und dem richtigen Gebrauch der Chemikalien vertraut zu ...
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Page 15: ...nter or controlling the meter from a PC The meter is designed to be maintenance free If the meter gets dirty wipe the surface with a damp cloth Use a cotton tipped applicator to clean or dry the connectors if they get wet 1 1 Unpacking the Instrument Remove the instrument and accessories from the shipping container and inspect each item for any damage that may have occurred during shipping Verify ...
Page 16: ...16 SECTION 1 continued 1 3 Keypad Description Figure 1 illustrates the meter s keypad The description and function of each key are given in Table 1 Figure 1 Hach sension4 Meter ...
Page 17: ...iates a new measurement when the meter has stabilized in the Display Lock Enabled mode Recall Key Recalls stored sample data from Reading mode only Store Key Stores the current displayed measurement from Reading mode only Erase Key Erases recalled data points ISE mV Key Toggles between ISE concentration value and mV in Reading Calibration and Cal Review modes pH mV Key Toggles between pH value and...
Page 18: ... sample default temperature pH or mV units error codes and indicates if the meter reading is stable The lower screen displays keys that are active Figure 2 shows the icons and screens displayed by the meter and Table 2 describes each element All icons on the display will be displayed if the power key is held down for several seconds Figure 2 sension4 Display ...
Page 19: ...ard standard is displayed above 12 Numerical field that displays the values of standards and samples slope pH or mV 13 Indicates measurement units pH mV mg L µg L ppm ppb M 14 When Default is displayed the meter is using the default temperature value to calculate the temperature correction for the pH value 15 Temperature units choice of C or F 16 Indicates value displayed in small numerical field ...
Page 20: ...he number entry and a press of the ENTER key causes two beeps the meter will automatically return to the beginning of number entry 31 Indicates the displayed number is the electrode slope 32 Indicates Time is being set or displayed 33 When on or flashing Stabilizing indicates signal from sample is not yet stable When it disappears the reading is stable 34 Indicates meter is in recall mode and the ...
Page 21: ... DC converter is required to power the meter Plug the power jack of the adapter into the meter power connector see Figure 3 Then plug the adapter into the wall 2 3 pH ISE and Temperature Probe Connections 2 3 1 pH ISE Probe Connections Electrodes may be simultaneously attached to the 5 pin and BNC connectors of the same channel as long as they are not in contact with the same solution To select ei...
Page 22: ...Temperature Probe Connection Hach pH electrodes with the 5 pin connector have the temperature sensing unit included in the electrode probe and require only the 5 pin connector If using a pH electrode with BNC connector connect the Hach Temperature Probe Cat No 51980 00 to the 5 pin connector on the meter see Figure 3 The user can also measure the temperature manually and enter the value as the def...
Page 23: ...to a 9 pin serial port of the computer using a 9 pin to 9 pin cable Pressing the PRINT key will send the currently displayed data to the computer The data may be either a current measurement or recalled data To send commands from a computer see the Table 6 on page 51 2 5 Turning the Meter On After plugging the correct power adapter into the wall turn the instrument on using the I O EXIT key locate...
Page 24: ...pidly hold the arrow key down Note Acceptable temperatures range from 10 to 110 C To change the units of temperature measurement see Section 3 1 3 on page 26 2 7 Millivolt Measurements The meter can be used to measure absolute millivolts mV To display a current millivolt reading press the pH mV or ISE mV key The mV value is displayed with mV in the units field Press the key again to return to pH o...
Page 25: ... mode When using the Setup menu the screen will display a number in the upper right numerical field indicating which option is being changed Table 3 describes these options 3 1 1 Choosing the Probe Connector This setup ensures the potential from the appropriate electrode is detected by the meter Do not use both a pH electrode and an ISE electrode from the same channel in the same solution Both can...
Page 26: ...the number 1 flashing will be displayed Press the up arrow once so the Setup number is 2 3 Change the Display Lock status by pressing ENTER this toggles the Display Lock between off and on When the Display Lock is disabled the Display Lock icon and Off are displayed When this feature is enabled the Display Lock icon is displayed when the stabilization criteria are met 4 When the desired option is ...
Page 27: ...ion option for pH buffer auto recognition is choosing 6 86 or 7 00 The default is pH 7 00 To change this option 1 From the reading mode press SETUP 2 The Setup icon and the number 1 flashing will be displayed Press the up arrow until the Setup number is 5 3 Change the buffer value by pressing ENTER this toggles the between the choices 6 86 and 7 00 4 When the desired option is selected press EXIT ...
Page 28: ...ed mV value using the keypad Press ENTER when entry is complete 5 If a number entry error occurs start over by pressing SETUP CE 6 When the desired value has been accepted press EXIT to return to the Reading mode 3 1 7 Setting the Time 1 From the reading mode press SETUP 2 The Setup icon and the number 1 flashing will be displayed Press the up arrow until the Setup number is 7 3 Change the time by...
Page 29: ...e the date by pressing ENTER The numeric display will change to _ _ _ _ with the left place holder flashing The date format has two places for the month on the left side of the slash and two places for the day of the month on the right side of the slash 4 The numerical keypad will become active Press the desired number key for the left most digit All four digit places must have a number If the lef...
Page 30: ...number entry error occurs start over by pressing SETUP CE 6 When the desired value has been accepted press EXIT to return to the Reading mode 3 1 10 Setting the Print Interval The default for this option is Off To transfer data when this option is disabled press the PRINT key When this option is enabled the meter will automatically send data at the selected interval to a computer or printer via th...
Page 31: ...be calibrated with two to five autorecognized buffers Note Use a 6 86 or 7 0 pH buffer for the mid range buffer To view or change the setting for the mid range buffer see Section 3 1 5 Note The pH values for the buffers are given for 25 C If the sample temperature is not 25 C the pH values displayed for the buffers will reflect the correct pH value for the sample temperature 3 Press I O EXIT to tu...
Page 32: ... in the electrode manual 12 To save the calibration and return to the reading mode press ENTER To exit the calibration without saving it and return to the reading mode press EXIT 3 2 2 Calibrating With Other Buffers 1 Select the desired channel If using a probe without a temperature sensor see Sections 2 3 2 on page 22 and 2 6 on page 23 for information about obtaining and using a default temperat...
Page 33: ...bove Press ENTER 11 When the reading has stabilized the standard number will change to 3 Repeat steps 9 10 for other calibration buffers 12 Press EXIT The slope value and the Store and icons will appear Verify the slope value is within the ranges specified in the electrode manual 13 To save the calibration and return to the reading mode press ENTER To exit the calibration without saving it and ret...
Page 34: ...standards according to the electrode instruction manual or the instructions for the standard Use two to five standards for calibration Pour 25 mL of each standard into a 50 mL beaker 2 Turn the instrument on Select the desired channel and the BNC connector Setup 1 If necessary press the ISE mV key to get into the ISE reading mode the last concentration units entered will be displayed 3 Press CAL F...
Page 35: ...V mode the three beeps will still sound when the stabilization occurs but you must press ENTER to accept the reading This lets the operator control the acceptance point of the standard 10 When the reading has stabilized the standard number will change to 2 The previous value for standard 2 will be displayed if a new value for Standard 1 has not been entered 11 Add ISA to 25 mL of the standard with...
Page 36: ...value and its correlation coefficient r2 are displayed in Cal Review mode ISE calibration result in a linear piecewise calibration for each pair of standards see Figure 4 Therefore the meter will display a slope for each calibration between each pair of standards The first slope displayed is for Standards 1 and 2 The second slope displayed is for standards 2 and 3 and so forth Use the arrow keys t...
Page 37: ...information with each press of the up arrow key When all the standards have been displayed press the up arrow key again 5 For pH calibrations The meter will display the slope and offset of the calibration curve Press the up arrow again to see the r2 value for the curve Skip to step 8 if reviewing a pH calibration For ISE calibrations the meter will display the slope value of the curve between stan...
Page 38: ...ple rinse with deionized water and place the electrode in the next sample Repeat steps 1 3 for each sample 5 When measurements are complete press the I O EXIT key to turn the meter off Rinse the electrode with deionized water and blot dry Replace the protective cap on the electrode For proper electrode storage see the electrode manual for specific instructions 3 6 Measuring Samples Using ISEs This...
Page 39: ...hannel used The slope of the electrode being used must be known 1 If necessary add ISA to the sample Rinse the electrode and blot dry Place the electrode in the sample 2 Select the desired channel From the Reading mode press STD ADDN 3 The display will show STANDARD ADDITIONS and the units will be flashing Use the arrow keys to scroll to the desired units then press ENTER 4 The display will show t...
Page 40: ...tion use the numerical keypad Immediately add the selected volume of the selected standard to the sample Press ENTER Do not press ENTER until the standard has been added to the sample 12 The meter will return to Reading mode The icon in front of Standard indicates that standard has been added to the sample 13 During measurement the meter will display a mV value After stabilization the meter will c...
Page 41: ...f choosing the storage location To store data 1 Press STORE The display will prompt Store Sample is the next available location The question mark will be flashing 2 Press ENTER to store the measurement reading in that location number To store the data in another location use the arrow keys to scroll to another location or enter a location using the number keys Press ENTER Note If all memory locati...
Page 42: ...review the date of the calibration press TIME twice Press EXIT to return the reading value 5 When recalling is complete press EXIT to return to the Reading mode 4 3 Erasing Data 4 3 1 Erasing Single Data Points 1 To erase data it must be recalled first Press the RECALL key while in the Reading mode See Section 4 2 for more information 2 When the desired data point is displayed press ERASE 3 The me...
Page 43: ... data point is displayed press ERASE 3 Press the up arrow The instrument will show Erase and All with the flashing At this point the options are Press EXIT to return to Recall mode without erasing Press the down arrow to return to the single point erase prompt Press ENTER to erase all data and return to Reading mode 4 After all the data is erased the meter will return to the Reading mode ...
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Page 45: ... between the instrument and the 25 pin connector used for the serial port on most serial printers Table 4 shows the proper pin connections for 25 pin printer cables Using cables that do not match the pin information in the table may cause undesirable operation Parallel printers require a serial to parallel adapter This allows use of printers that are normally used for IBM compatible applications T...
Page 46: ...l shell for the printer or computer terminal connector and connect the shield of the cable to the metal shell and the sleeve signal ground of the RS232 plug Follow the printer manufacturer s instructions to configure the printer for compatibility with the meter Figure 5 RS232 Cable Connector 5 1 3 Connecting to a Personal Computer Connect the meter to a personal computer PC with the computer inter...
Page 47: ...ta to the computer Use a communications software such as HachLink Cat No 49665 00 to collect data from the instrument HachLink is a Windows based application that allows a personal computer to capture data from several Hach instruments including the sension electrochemical meters The captured data can be stored in a text file as a spread sheet compatible format or a free format text Data captured ...
Page 48: ...nu lets the user choose a print interval When this option is enabled the meter will automatically send data to a printer or computer at the selected time interval See Section 3 1 10 on page 30 for more information on enabling this option 5 2 2 Sending Currently Displayed Data To print or transfer a current reading 1 Wait until the display is stable Press PRINT Note Data can be printed before the r...
Page 49: ... 2 on page 42 for more information 2 When a data point is displayed press PRINT The display will show Print Sample 3 Press the up arrow The instrument will show Print Sample and All with the flashing At this point the options are Press EXIT to return to Reading mode without printing Press the down arrow to return to the prompt for printing single data points Press ENTER to print all data and the a...
Page 50: ...S232 Interface The meter can be controlled remotely using a PC The communication protocols are 1200 baud rate 8 bit word 1 stop bit no parity A summary of the commands is shown in Table 6 Storage Location Channel Number Reading Temperature mV Reading Date Time Meter Model Serial Number Software Version 1 1 7 53 pH 22 7 C 30 0 mV 10 03 99 08 30 sensIon4 12344577 PX X 2 1 6 13 pH 13 6 C 50 0 mV 10 0...
Page 51: ...4 xxxx serialized part of serial number Exit Key EXT OK Up Arrow UPA OK Down Arrow DOW OK Enter ENT OK Recall REC OK Store STO OK Erase ERA OK ISE mV ISE OK pH mV PHM OK Std Addn STD OK Print PRI OK Channel CHA OK Time Date TIM OK Cal CAL OK Review REV OK Setup SET OK Calibrate Offset current channel and connector CRD OK ...
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Page 53: ...e will void the warranty 6 2 Shorting Test This test detects the meter offset 1 Turn the meter on Connect the shorting cap to the BNC connector see Figure 6 Make sure the channel with the shorting cap is selected Select BNC from Setup 1 choices 2 Change the output to display in mV press the ISE mV or pH mV key to toggle between mV and concentration After the meter has stabilized simultaneously pre...
Page 54: ... is the meter being stored between uses 8 If the meter has been in use for a while what maintenance has been performed 9 Describe the suspected problem or failure of the meter 10 Please have your meter electrode buffers standards and this completed questionnaire near the phone before calling technical support Table 7 Error Codes Error Code Error Name Display Icons Description E2 Cal slope error ER...
Page 55: ...55 At Hach Company customer service is an important part of every product we make With that in mind we have compiled the following information for your convenience GENERAL INFORMATION ...
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Page 57: ...sion 4 Benchtop pH ISE Meter 115 V 1 each 51775 10 sension 4 Benchtop pH ISE Meter 230 V 1 each 51775 11 Shorting Cap BNC 1 each 51895 00 Temperature Probe 5 pin 1 each 51980 00 OPTIONAL APPARATUS Ammonia Combination Electrode BNC each 50250 00 Calcium Half cell each 50240 00 Chloride Combination Electrode BNC each 50225 00 Computer Interface Cable 9 pin to 9 pin D sub each 48129 00 Cyanide Iodide...
Page 58: ...th American Style Plug each 26687 00 Power Cord for Citizen PN60I Continental European Style Plug each 46836 00 Reference Electrode double junction each 50225 00 Reference Electrode single junction each 50220 00 sension 1 Portable pH Meter each 51700 00 sension 2 Portable pH ISE Meter each 51725 00 sension 3 Benchtop pH Meter 115 V No American style plug each 51750 00 sension 3 Benchtop pH Meter 2...
Page 59: ...oducts 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 International Customers Hach maintains a worldwide network of dealers and distributors To locate the representative nearest you send E mail to intl hach com or In Canada Hach Sales Service Canada Ltd Manitoba Canada Telephone 204 632 5598 FAX 20...
Page 60: ...60 REPAIR SERVICE ...
Page 61: ...HACH WARRANTS TO THE ORIGINAL BUYER THAT HACH PRODUCTS WILL CONFORM TO ANY EXPRESS WRITTEN WARRANTY GIVEN BY HACH TO THE BUYER EXCEPT AS EXPRESSLY SET FORTH IN THE PRECEDING SENTENCE HACH MAKES NO WARRANTY OF ANY KIND WHATSOEVER WITH RESPECT TO ANY PRODUCTS HACH EXPRESSLY DISCLAIMS ANY WARRANTIES IMPLIED BY LAW INCLUDING BUT NOT BINDING TO ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULA...
Page 62: ... 0389 Telephone 970 669 3050 FAX 970 669 2932 FORTECHNICAL ASSISTANCE PRICE INFORMATION AND ORDERING Call 800 227 4224 Contact the HACH office or distributor serving you www hach com techhelp hach com In the U S A Outside the U S A On the Worldwide Web E mail toll free ...
