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51750-18

Laboratory pH Meter

Instruction Manual

© Hach Company, 1999. All rights reserved. Printed in the U.S.A.

hm/dk 3/99

Содержание sensION3

Страница 1: ...51750 18 Laboratory pH Meter Instruction Manual Hach Company 1999 All rights reserved Printed in the U S A hm dk 3 99 ...

Страница 2: ... Oval HexaVer HgEx HydraVer IncuTrol LeadTrak m ColiBlue 24 ManVer MercuVer MolyVer Mug O Meter NTrak NitraVer NitriVer OriFlo PathoScreen PbEx PermaChem PhosVer Pocket Colorimeter Pocket Turbidimeter Pocket Pal PourRite ProNetic Pump Colorimeter Rapid Liquid RapidSilver Ratio RegeneVer RoVer Spec StablCal StannaVer StillVer SulfaVer Surface Scatter TanniVer TenSette Test N Tube TitraStir TitraVer...

Страница 3: ...0 2 4 Printer and Computer Connections 20 2 5 Turning the Meter On 21 2 6 Temperature Measurement 21 2 7 Millivolt Measurements 22 SECTION 3 INSTRUMENT OPERATION 23 3 1 Setup Menu 23 3 1 1 Choosing the Probe Connector 23 3 1 2 Turning Display Lock Off and On 24 3 1 3 Selecting Temperature Units 24 3 1 4 Selecting Measurement Resolution 25 3 1 5 Selecting Auto Buffer Recognition 25 3 1 6 Setting th...

Страница 4: ...nters Computers 37 5 1 1 Connecting With The RS232 Cable 37 5 1 2 Connecting To A Printer 37 5 1 3 Connecting to a Personal Computer 38 5 2 Sending Data to Printers Computers 40 5 2 1 Sending Currently Displayed Data 40 5 2 2 Sending Recalled Data Points 40 5 2 3 Sending All Stored Data And The Average pH Value 41 SECTION 6 TROUBLESHOOTING 43 6 1 Introduction 43 6 2 Shorting Test 43 6 3 Error Code...

Страница 5: ...8 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 Transi...

Страница 6: ... CANADIAN INTERFERENCE CAUSING EQUIPMENT REGULATION IECS 003 Class A emission limits Supporting test records by Criterion Technology O A T S NVLAP 0369 certified compliance by Hach Company This Class A digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel b...

Страница 7: ...adio 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...

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Страница 9: ...CD Inputs 1 BNC 5 pin Hach pH temperature or Hach temperature probe 1 pin tip Outputs One way RS232 Power Requirements 6 12 Vdc use either Hach supplied 115 or 230V 50 60 Hz external power supply or a customer provided supply with 50 mA output 5 5 mm power plug with a 2 5 mm center post opening Installation Category II Instrument Drift 40 µV C Input Bias Current 1 picoamp at 25 C 4 picoamp over fu...

Страница 10: ...10 SAFETY PRECAUTIONS Section 2 2 on page 19 Section 2 3 on page 20 Section 2 4 on page 20 Section 5 1 on page 37 ...

Страница 11: ...ligrosa Revise las fichas de seguridad de materiales y familiarícese con los procedimientos de seguridad antes de manipular productos químicos GEFAHR Da das Arbeiten mit chemischen Proben Standards und Reagenzien mit Gefahren verbunden ist empfiehlt die Hach Company dem Benutzer dieser Produkte dringend sich vor der Arbeit mit sicheren Verfahrensweisen und dem richtigen Gebrauch der Chemikalien ve...

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Страница 13: ...ously displays temperature and measurement results This meter has all the features of a pH meter plus a millivolt mode water resistant design ergonomic design and automatic buffer recognition Additional features include datalogging and RS232 communication for printing results to a computer or printer The meter is designed to be maintenance free If the meter gets dirty wipe the surface with a damp ...

Страница 14: ...Service Loveland Colorado for instructions Hach s toll free phone number for customers within the United States is 800 227 4224 For customers outside the United States contact the Hach office or distributor serving you 1 1 1 Standard Accessories AC to DC adapter Instrument Manual May contain electrode and related accessories covered in the electrode manual 1 2 Keypad Description Figure 2 illustrat...

Страница 15: ...ashing Accepts a change to the current Setup option Initiates 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 pH mV Key Toggles between pH value and mV value in Reading Calibration and Cal Revie...

Страница 16: ...pH or mV units error codes and indicates if the meter reading is stable The lower screen displays the keys that are active Figure 3 shows the icons and fields displayed by the meter and Table 2 describes each element Some icons on the display are not used by the laboratory pH sension3 meter but will be displayed if the power key is held down for several seconds Figure 3 sensION 3 Display Elements ...

Страница 17: ...he displayed number is the electrode slope 12 Numerical field that displays the slope and pH or mV values of standards and samples 13 Indicates measurement units pH or mV 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 it...

Страница 18: ...on to signal an error condition If the number entry and a press of the ENTER key causes two beeps the meter will automatically return to the beginning of number entry 31 Stabilizing indicates signal from sample is not yet stable When it disappears the reading is stable and may be recorded or stored 32 Used with icon Asking if user wants to store the displayed sample data or the calibration that ha...

Страница 19: ...values are temperature corrected using the measured sample temperature or a default temperature setting The meter also measures and displays mV To toggle between pH and mV readings press the pH mV key 2 2 Power Connection A 115 or 230 VAC pin adapter connects the meter to line power Plug the pin end of the adapter into the pin connector in the meter see Figure 4 Then plug the adapter into the outl...

Страница 20: ...e with a BNC or 5 pin connector the reference pin tip jack is not used 2 3 2 Connecting the Temperature Probe Hach electrodes with the 5 pin connector have the temperature sensing unit included in the electrode probe If using an electrode with BNC connector connect a Hach temperature probe to the 5 pin connector Alternatively measure the temperature manually and enter the value as the default temp...

Страница 21: ... Measurement The meter displays temperature in the range of 10 0 to 110 C simultaneously with sample results If a temperature probe is properly connected actual temperature measurements are displayed in the temperature field The meter receives temperature data from one of three sources The temperature probe in the sample The factory default setting 20 C A user entered default setting The meter req...

Страница 22: ...nt see Section 3 1 3 on page 24 2 7 Millivolt Measurements The meter can be used to measure absolute millivolts mV To display a current millivolt reading press the pH mV key The mV value is displayed with mV in the units field Press the key again to return to pH measurement units Absolute millivolts are displayed with 0 1 mV resolution in the range of 2000 to 2000 The millivolt mode is useful when...

Страница 23: ...ing 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 Connect only one electrode to the meter 1 From the reading mode press SETUP 2 The Setup icon and the number 1 flashing will be displayed Change the connector choice by pressing ENTER this toggles the selection ...

Страница 24: ...oggles 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 and three beeps occur when the stabilization criteria are met 4 When the desired option is selected press EXIT to return to the reading mode 3 1 3 Selecting Temperature Units 1 From the reading mode press SETUP 2 Th...

Страница 25: ... is selected press EXIT to return to the reading mode 3 1 5 Selecting Auto Buffer Recognition The sension3 pH Meter is designed to auto recognize and calibrate on 4 01 6 86 or 7 00 and 10 01 pH buffers The only selection 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 f...

Страница 26: ...rs until all four places have a value Press ENTER If a number entry error occurs start over by pressing SETUP CE 6 When the desired option is selected press EXIT to return to the reading mode 3 1 7 Setting the Month and Day 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 The display will show Date and a...

Страница 27: ...t place holder flashing The numerical keypad will become active 4 Press the desired number key for the left most digit Once a number key is pressed the next digit place holder will flash Continue to enter the desired numbers until all four places have a value Press ENTER to accept the value If a number entry error occurs start over by pressing SETUP CE 5 When the desired option is selected press E...

Страница 28: ...to the pH reading mode pH will be displayed 4 From the pH reading mode press CAL CAL and will appear in the upper display area along with Standard and 1 5 Place the pH electrode in one of the buffers Do not use a stir bar or swirl or stir during pH measurements 6 Press READ ENTER The temperature and pH values will be updated until a stable reading is reached Note If the meter is measuring in pH mo...

Страница 29: ...r three pH buffers according to the electrode instruction manual 3 Press the I O EXIT key to turn the instrument on If necessary press the PH mV key to get into the pH reading mode pH will be displayed 4 From the reading mode press CAL Functional keys will appear in the lower left part of the display CAL and will appear in the upper display area along with Standard and 1 The numeric keypad will be...

Страница 30: ...ss EXIT 3 2 3 One Point Calibration The one point calibration is used to adjust the slope offset and cannot be done unless a prior two or three point calibration has been done 1 Press CAL Cal 1 and Standard will be displayed 2 Place the electrode in an auto recognizable pH buffer or any other buffer and manually enter the pH value 3 Press READ ENTER The temperature and pH values will be continuous...

Страница 31: ...be displayed along with the sample temperature and the pH or mV reading These values may fluctuate until the system is stable 2 If the Display Lock is enabled Stabilizing will disappear and the display will lock in the pH or mV and sample temperature when a stable reading is reached If the Display Lock is off Stabilizing will still disappear but the display will show the current reading and temper...

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Страница 33: ...ion of 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 l...

Страница 34: ...ete 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 meter will display Erase Sample and a flashing Press ENTER to erase the data The data will disappear 4 The meter will ...

Страница 35: ...ata 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 the Reading mode 4 After all the data is erased the meter will return to the Reading mode ...

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Страница 37: ... 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...

Страница 38: ... metal 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 ...

Страница 39: ...data 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 as a text file in a spread sheet compatible format or a free format text Data capture...

Страница 40: ...uters 5 2 1 Sending Currently Displayed Data To print or transfer a current reading 1 Wait until the display is stable Press PRINT 2 The word PRINT will be briefly displayed then the meter will return to Reading mode 3 The print out for data that is printed without being stored will not have a storage location number 5 2 2 Sending Recalled Data Points 1 To transfer data it must be recalled first P...

Страница 41: ...ed will not be included The word PRINT will be displayed until all the data has been printed Then the meter will return to the most recently stored sample data Press EXIT to return to Reading mode or an arrow key to scroll to another data point 5 2 3 1 Printed Data Format Printed data will have the following format This line will not be included unless Print All is chosen This calculation is inclu...

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Страница 43: ... to service the meter as there are no field serviceable parts Opening the meter case 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 Select the BNC connector from Setup 1 2 Change the output to display in mV press the pH mV key to toggle between mV and pH The display should show 0 1 mV If it ...

Страница 44: ...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 6 Error Codes Error Code Error Name Display Icons Description E2 Cal slope error ERROR and SLOPE ...

Страница 45: ...45 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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Страница 47: ... 3 Benchtop pH Meter 230 V European plug 1 each 51750 11 Shorting Cap BNC 1 each 51875 00 Temperature Probe 5 pin 1 each 51980 00 OPTIONAL APPARATUS Comb Flat pH Electrode BNC each 51915 00 Demineralizer Bottle 177 mL each 14299 00 Electrode Stand each 45300 00 Electrode Stand with Electromagnetic Stirrer 115 Vac each 45300 01 Electrode Stand with Electromagnetic Stirrer 230 Vac each 45300 02 Low ...

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Страница 49: ...49 HOW TO ORDER ...

Страница 50: ...50 REPAIR SERVICE ...

Страница 51: ...51 WARRANTY Hach warrants the meter against defective materials or workmanship for three years from the date of shipment The Docking Station has a one year warranty from the date of shipment ...

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