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Hanna Instruments HI 5421, Инструкция по эксплуатации

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40

Make sure the instrument has been calibrated before taking DO measurements.

DIRECT MEASUREMENT

To measure the DO of a sample using the Direct reading 
mode:
• Press 

 and then 

 to select DO measure 

mode. 

•  Select the 

Direct 

reading mode (see DO Setup).

•  Submerge the DO probe and allow time for the reading 

to stabilize.

•  The measured DO value will be displayed together with 

the temperature and pressure values.

Notes: For accurate DO measurements, a water movement of 0.3 m/s is required. This is 

to ensure that the oxygen-depleted membrane surface is constantly replenished. A moving 

stream will provide adequate circulation. 
If the reading is out of range, “-----” will be displayed.

DIRECT/AUTOHOLD MEASUREMENT

To measure DO of a sample using the Direct/AutoHold 
reading mode:
•  Select the 

Direct/AutoHold

 reading mode (see DO 

Setup).

•  If pressing 

, the “AutoHold” indicator will start 

blinking on the display until the stability criterion is 
reached. The DO value will be frozen on the display, 
along with “AutoHold” indicator.

•  To return to normal measure mode press 

.

DO MEASUREMENT

Содержание HI 5421

Страница 1: ...INSTRUCTION MANUAL HI5421 DO BOD OUR SOUR Temperature Bench Meter...

Страница 2: ...manual carefully before using this instrument This manual will provide you with the necessary information for correct use of this instrument as well as a precise idea of its versatility If you need a...

Страница 3: ...TION SPECIFICATIONS OPERATIONAL GUIDE DISPLAYING MODES SYSTEM SETUP DO SETUP BOD SETUP OUR SETUP SOUR SETUP DO CALIBRATION PRESSURECALIBRATION DO MEASUREMENT BOD MEASUREMENT OUR MEASUREMENT SOUR MEASU...

Страница 4: ...rature sensor HI7041S Electrolyte solution 30 mL Membrane caps 2 pcs HI76404W Electrode Holder 12 Vdc Power Adapter Electrode protective cap Instruction Manual and Quick Reference Guide Certificate HI...

Страница 5: ...reeze the stable reading on the LCD DO only Two selectable alarm limits for DO BOD OUR SOUR Three selectable logging modes Automatic Manual or AutoHold DO only Up to 100 logging lots for automatic or...

Страница 6: ...6 HI5421 DESCRIPTION FRONT PANEL REAR PANEL 1 Liquid Crystal Display LCD 2 Capacitive touch keypad 3 ON OFF button 4 Power adapter socket 5 DO probe input 6 USB connector FUNCTIONAL DESCRIPTION...

Страница 7: ...yed function depending on the current menu e g and in Measure mode LCD GENERAL DESCRIPTION To enter exit calibration mode To select the desired measurement mode DO BOD OUR SOUR To enter Setup System S...

Страница 8: ...L 0 0 to 42 0 psu BOD Biochemical Oxygen Demand Yes OUR Oxigen Uptake Rate Yes SOUR Specific Oxigen Uptake Rate Yes Keyboard 8 keys capacitive touch Probe Polarographic with temperature built in PC i...

Страница 9: ...T START UP Please ensure that the capacitive keypad is not covered by hand or other objects at the meter power on Turn the instrument on from the power button located on the rear panel of the instrume...

Страница 10: ...de The Choose Display Configuration message will be displayed in the Reminder messages area Press The instrument will display the basic information for the selected measurement mode GLP Accessing this...

Страница 11: ...be displayed in the Reminder messages area Press Press to begin online graph To Zoom Graph Press then and will appear in virtual keys Use and to move along the X Time axis of the graph Press to acces...

Страница 12: ...n Measure mode The Choose Display Configuration message will be displayed in the Reminder messages area Press The instrument will display the log history regarding the selected Measure mode Notes When...

Страница 13: ...a System Setup option Use or to highlight the desired option Press to access the selected option The following is a detailed description of the System Setup option screen Beeper This option allows th...

Страница 14: ...name location or number Company Name used to include the Company ID to the GLP data field Additional Info two data fields are available for general notes or notations To add the GLP Data Press while i...

Страница 15: ...at from 7 available options DD MM YYYY MM DD YYYY YYYY MM DD YYYY MM DD Mon DD YYYY DD Mon YYYY or YYYY Mon DD To set the Date Time Press while in Measure mode Press Use or to select the Date Time opt...

Страница 16: ...desired parameter Use or toadjustthecontrast backlight or to set the desired backlight saver time Press toconfirmthemodifiedoptionsandreturn to the System Setup menu Color Palette Thisoptionallowstheu...

Страница 17: ...option allows the user to choose the desired language in which all informations will be displayed To select the Language Press while in Measure mode Press Use or to select the Language option Press an...

Страница 18: ...eral information about the instrument serial number each instrument has an unique identification serial number the software version and the factory calibration date and time Note All instruments are f...

Страница 19: ...ss toconfirmyourselection Apop upmenu will be displayed asking for confirmation Press toconfirmyourselectionandreturntothe System Setup or press to return to the System Setup menu without restoring de...

Страница 20: ...d at a moment s notice A profile is a sensor setup complete with measurement units logging and display preferences calibration standards setup of the Display screen for measurement i e graphing GLP an...

Страница 21: ...name by using and to highlight the desired character and then press to add it to the text bar It is also possible to delete the last character by positioning the cursor on the Backspace character and...

Страница 22: ...d press Press to return to previous menu Reading Mode This option allows the user to select between Direct or Direct AutoHold DO reading modes To set the reading mode Press while in DO mode Press Use...

Страница 23: ...sius Fahrenheit or Kelvin unit Press toconfirmyourselectionorpress to cancel operation Calibration This selection allows configuration of options pertaining to calibration Standard Recognition The use...

Страница 24: ...operation Set Reminder Period Daily reminder the user can set the time from the day when the reminder is to appear Periodic reminder the user can set the time from the last calibration days hours and...

Страница 25: ...ess toconfirmyourselectionorpress to cancel operation Clear Calibration Accessing this option the existent DO calibration can be cleared If the calibration is cleared a default meter calibration is us...

Страница 26: ...e pressure source Select or using virtual key Press to return to previous menu Note IfManualpressuresourceischosen thepressure value used to compute is set manually If Automatic pressure source is cho...

Страница 27: ...n of measurement unit and value Salinity Compensation is used when using DO con centration measurements mg L or ppm Oxygen solubility decreases when water contains salt Note Selectsalinityunitbeforese...

Страница 28: ...to assign an identification number name to sample logs Two Sample ID parameters are available ID Increment mode and Edit Sample ID ID Increment Choose None to identify a sample with a text tag Choose...

Страница 29: ...rent value or press to cancel operation Stability criteria This parameter permits the user to select a signal stability criteria for the measurement Stable tag appears on display Fast permits quicker...

Страница 30: ...y at constant time intervals Manual a snapshot of the displayed measurement data is logged with time stamp when the user manually depresses Log Auto Hold this is configured along with the Direct AutoH...

Страница 31: ...le Press to enable the parameter or to disable it Press to return to previous menu Sampling Period This option allows the user to select the desired sampling period for automatic logs To set the Sampl...

Страница 32: ...press to escape without saving and return to the Log options Alarm This option allows the user to select the alarm settings Alarm State and Alarm Limits If the Alarm option is enabled a continuous do...

Страница 33: ...or highlightthe Alarm Limits option Press andthenuse or tosetthe desired value then press to save the modified value or press to cancel operation Press return to the Alarm options Press and use or hig...

Страница 34: ...option Use or to select the desired option Press to confirm your selection The following is a description of the BOD Setup option screens Profile see DO Setup section Temperature Unit see DO Setup se...

Страница 35: ...ight the desired option Press to access the selected option The following is a description of the OUR Setup option screens Profile see DO Setup section Temperature Unit see DO Setup section Measuremen...

Страница 36: ...Use or to highlight the desired option Press to access the selected option The following is a description of the SOUR Setup options Profile see DO Setup section Temperature see DO Setup section Measu...

Страница 37: ...the current pressure temperature and salinity Initial preparation Make sure the probe is ready for measurements i e the membrane is filled with electrolyte and the probe is connected to the meter and...

Страница 38: ...tip and allow measurement to stabilize on meter Procedure Suspend probe with membrane just over beaker of water for calibration in 100 Saturation Press and wait for Stable to appear on display Display...

Страница 39: ...ibration Use or to modify the pressure value Press to finish the calibration or to exit calibration Note Use a reference pressure measurement if calibrating meter s sensor When the user standard is se...

Страница 40: ...easurements a water movement of 0 3 m s is required This is to ensure that the oxygen depleted membrane surface is constantly replenished A moving stream will provide adequate circulation If the readi...

Страница 41: ...44 46 4 10 11 28 10 58 9 93 9 32 9 03 50 0 12 10 77 10 11 9 50 8 92 8 65 53 6 14 10 29 9 68 9 10 8 55 8 30 57 2 16 9 86 9 28 8 73 8 21 7 97 60 8 18 9 45 8 90 8 39 7 90 7 66 64 4 20 9 08 8 56 8 07 7 60...

Страница 42: ...8 6 5 6 3 6 0 5 8 5 7 64 4 20 9 1 8 8 8 4 8 1 7 8 7 5 7 3 7 0 6 7 6 5 6 2 6 0 5 8 5 6 5 5 68 0 22 8 7 8 4 8 1 7 8 7 5 7 2 7 0 6 7 6 5 6 2 6 0 5 8 5 6 5 4 5 3 71 6 24 8 4 8 1 7 8 7 5 7 2 7 0 6 7 6 5 6...

Страница 43: ...reading is to be used then the manual pressure feature must be enabled See DO Setup The table below contains a conversion altitude m to pressure mmHg for the altitude values from the previous table D...

Страница 44: ...ave been made for the degree of dilution and seed addition is called the BOD5 Before running a BOD measurement remember to set the BOD method configuration from the BOD setup menu and make sure the pr...

Страница 45: ...ted following Operational Procedures DAY 5 Final DO Remove samples and Seed samples from the incubator for analysis Press then select Calibrate the DO probe Press then select Press Press toaccesstheli...

Страница 46: ...required then press otherwise press Remove probe from sample and rinse with purified water Press to analyze another prepared sample or seed The list will reflect the 5 day analysis Note No Seed correc...

Страница 47: ...h 5 day BOD determinations and 5 day BOD determina tions with seed corrections The dates reflect the last date the sample was evaluated Press then to select the sample and seed bottles If more than on...

Страница 48: ...ults with SEED correction will be displayed Press to save and replace the previous sample report with this bottle ID or press to keep the previous sample BOD with no seed correction To print a copy of...

Страница 49: ...total volume sample volume Dilution factor of sample Before starting an OUR measurement remember to set the OUR configuration from the OUR setup menu and make sure the instrument has been calibrated i...

Страница 50: ...n The SOUR value is corrected to 20 C 68 F according to the Farrel and Bhide equation SOUR20 SOURT x 20 T Where T is the measured temperature in C and is a temperature dependent variable 1 05 for T ab...

Страница 51: ...w Lot is selected under Log options Note When the is pressed the lot ID along with the current record number will appear for short time on the selected channel window on the top left corner e g L001_D...

Страница 52: ...d with an H 5 Direct AutoHold Reading Mode and Auto Hold Log Press and then keys to initiate and automate the capture of stable data which is stored in the Recall Manual Log file During the process Au...

Страница 53: ...ther with GLP information last calibra tion date and calibrated standards if a calibration has been performed on the selected mode and the logged values measured value temperature value temperature co...

Страница 54: ...the selected lot or all lots The Please wait message will be displayed on the LCD until the selected lot or all lots are deleted Press and then press to exit deleting mode and return to Log Recall vi...

Страница 55: ...tandard USB cable to connect your instrument to the PC Make sure that the instrument and the HI92000 software have the same baud rate and the ap propriate communication port The PC software may also b...

Страница 56: ...prior to use Fillthecapwithcleanelectrolytesolution Gentlytapthesides of the membrane cap to ensure that no air bubbles remain trapped Do not tap the bottom directly as this will damage the membrane...

Страница 57: ...brate the meter Check the sample is within the measurable range The meter fails to calibrate or gives faulty readings The probe is damaged Replace the probe The instrument doesn t measure the temperat...

Страница 58: ...rm to the CE European Directives Disposal of Electrical Electronic Equipment The product should not be treated as household waste Instead hand it over to the appropriate collection point for the recyc...

Страница 59: ...or replacement free of charge Damage due to accidents misuse tampering or lack of prescribed maintenance is not covered If service is required contact your local Hanna Instruments Office If under war...

Страница 60: ...World Headquarters Hanna Instruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA www hannainst com MAN5421 Printed in ROMANIA...

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