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46

For refillable electrodes:

If the filling solution (electrolyte) is more than 2½ cm (1”) below the fill hole,
add

HI 7082

or

HI 8082

3.5M KCl Electrolyte Solution for double junction or

HI 7071

or

HI 8071

3.5M KCl+AgCl Electrolyte Solution for single junction

electrodes.
For faster response, unscrew the fill hole screw during measurements.

For AmpHel

®

electrodes:

If the electrode does not respond to pH changes, the battery run down
and the electrode should be replaced.

MEASUREMENT

Rinse the pH electrode tip with distilled water. Immerse the tip (bottom
4 cm /1½”) in the sample and stir gently for a few seconds.
For a faster response and to avoid cross-contamination of the samples, rinse
the electrode tip with a few drops of the solution to be tested, before
taking measurements.
See that the sleeve holes of the ORP probe are completly submerged. Tap the
probe repeatedly to remove any air bubbles that may be trapped inside the
sleeve.

STORAGE PROCEDURE

To minimize clogging and assure a quick response time, the glass bulb and
the junction of pH electrode should be kept moist and not allowed to dry out.
Replace the solution in the protective cap with a few drops of

HI 70300

or

HI 80300

Storage Solution or, in its absence, Filling Solution (

HI 7071

or

HI

8071

for single junction and

HI 7082

or

HI 8082

for double junction

electrodes). Follow the Preparation Procedure on page 45 before taking
measurements.

Note:

NEVER STORE THE ELECTRODE IN DISTILLED OR DEIONIZED WATER.

PERIODIC MAINTENANCE

Inspect the electrode and the cable. The cable used for connection to the
instrument must be intact and there must be no points of broken
insulation on the cable or cracks on the electrode stem or bulb. Connectors
must be perfectly clean and dry. If any scratches or cracks are present,
replace the electrode. Rinse off any salt deposits with water.

pH Probe Maintenance

For refillable electrodes:

Refill the reference chamber with fresh electrolyte (

HI 7071

or

HI 8071

for

single junction or

HI 7082

or

HI 8082

for double junction electrodes). Allow

the electrode to stand upright for 1 hour.
Follow the Storage Procedure above.

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Содержание HI 120

Страница 1: ...1 Instruction Manual pH mV Temperature Bench Meters with Calibration Check HI 120 HI 122 ON OFF Calibration Check LOG CLR CFM CAL pH mV Meter HI 122 www hannainst com ...

Страница 2: ... under warranty report the model number date of purchase serial number and the nature of the problem If the repair is not covered by the warranty you will be notified of the charges incurred If the instrument is to be returned to Hanna Instruments first obtain a Returned Goods Authorization number from the Technical Service department and then send it with shipping costs prepaid When shipping any ...

Страница 3: ...00 samples for AutoLOG mode Two selectable alarm limits User selectable AutoLOG modes Printing feature in four selectable languages HI 122 only Large easy to read LCD which shows the pH or mV and Temperature simultaneously together with graphic symbols AutoHOLD feature to freeze first stable reading on the LCD GLP feature to view last calibration data for pH and Relative mV PC interface Remove the...

Страница 4: ...ower adapter socket 9 RS232 serial communication connector FUNCTIONAL DESCRIPTION HI 120 NUM Reso RelmV mV pH AutoLOG SET GLP AutoHOLD ON OFF Front Panel Rear Panel 1 2 3 4 Primary LCD Secondary LCD Electrode Condition 5 6 7 8 9 Electrode Response RS232 POWER TEMP pH ORP PIN Calibration Check RCL LOG MODE CLR CFM CAL pH mV Meter HI 120 ...

Страница 5: ...er socket 9 RS232 serial communication connector 10 Printer FUNCTIONAL DESCRIPTION HI 122 ON OFF NUM Reso RelmV mV pH AutoLOG Paper Print AutoHOLD 1 2 3 4 Front Panel Primary LCD Secondary LCD Electrode Condition Electrode Response Rear Panel 5 6 7 8 9 10 Paper Roll RS232 POWER TEMP pH ORP PIN Calibration Check LOG CLR CFM CAL pH mV Meter HI 122 ...

Страница 6: ...perature while in pH calibration mode 5 AutoLOG key to start stop AutoLOG mode 6 key to toggle between parameters while in RECALL or SETUP modifying mode forwards to toggle between absolute mV and temperature while in Relative mV mode and between pH buffer and temperature while in pH calibration mode 7 pH key to select pH range 8 mV key to select mV range 9 RelmV key to select Relative mV range 11...

Страница 7: ...t stable reading on the LCD 5 key to manually decrease temperature value or other parameters AutoLOG key second function to start stop AutoLOG mode 6 MODE key to select the measurement unit or to switch focused data 7 2nd key to select second key function 8 LOG key to store measured data 9 RCL key to enter exit view logged data mode Note To select second key function press 2nd and then the desired...

Страница 8: ...ture while in pH calibration mode 5 AutoLOG key to start stop AutoLOG mode 6 key to toggle between parameters while in RECALL or SETUP modifying mode forwards to toggle between absolute mV and temperature while in Relative mV mode and between pH buffer and temperature while in pH calibration mode 7 pH key to select pH range 8 mV key to select mV range 9 RelmV key to select Relative mV range 11 Res...

Страница 9: ... temperature value or other parameters AutoLOG key second function to start stop AutoLOG mode 6 MODE key to select the measurement unit or to switch focused data Paper key second function to pull out the paper 7 2nd key to select second key function 8 LOG key to store measured data 9 RCL key to enter exit view logged data mode Print key second function to obtain a printout or to cancel printing No...

Страница 10: ... 1 1 0 0 1 8 1 9 1 s r e f f u b m o t s u c 2 d n a n o i t a s n e p m o c e r u t a r e p m e T m o r f c i t a m o t u A r o l a u n a M F º 0 8 4 2 o t 0 4 C º 0 0 2 1 o t 0 0 2 e d o r t c e l E H p P 1 3 1 1 I H e b o r p e r u t a r e p m e T 2 6 6 7 I H l a v r e t n I g n i g g o L s e t u n i m 0 8 1 o t s d n o c e s 5 y l n o 2 2 1 I H r e t n i r P r e p a p e d i w m m 4 4 x i r t a...

Страница 11: ...e the bar graph gauges will blink 25 seconds OFF 4 seconds ON full bar graph For temperature measurements and automatic temperature compensation connect the temperature probe to the appropriate socket INSTRUMENT START UP Turn the instrument on by pressing the ON switch All LCD tags are displayed and a beep is heard while the instrument performs a self test The instrument displays then the date on ...

Страница 12: ...n points have to be well distributed in the desired measurement range If measurements are taken successively in different samples it is recommended to rinse the electrode thoroughly with deionized water or tap water and then with some of the next sample to prevent cross contamination and to condition the electrode before immersing it into the sample solution The pH reading is affected by temperatu...

Страница 13: ...rface of the ORP electrode must be clean and smooth Press MODE or simply mV from the left keyboard to enter mV range Submerge the tip of the ORP electrode 4 cm 1 into the sample to be tested and allow a few seconds for the reading to stabilize The instruments display the mV reading on the primary LCD and the temperature on the secondary LCD If the reading is out of range the closest full scale val...

Страница 14: ...elative mV calibration TEMPERATURE MEASUREMENTS Connect the HI 7662 T temperature probe to the appropri ate socket Immerse the temperature probe into the sample and allow the reading on the secondary LCD to stabilize Note The temperature can be displayed in Celsius degrees ºC or in Fahrenheit degrees ºF see SETUP for details page 27 ...

Страница 15: ... calibration by selecting five of the available buffers PROCEDURE If 0 001 pH resolution is selected each selected standard buffer value can be updated in according with the value on the production lot certificate at 25 ºC 77 ºF Press 2nd then SET key when a standard pH buffer with 0 001 resolution is selected The buffer value will start blinking and it can be changed with the ARROW keys in a 0 02...

Страница 16: ...proximately 4 cm 1 into a buffer solution of your choice pH 1 68 4 01 6 86 7 01 9 18 10 01 12 45 custom buffer 1 or 2 if these were set and stir gently The temperature probe should be close to the pH electrode Press CAL The CLEAR CAL IF NEW ELECTRODE message will be displayed blinking on the LCD for a few seconds if the instrument was calibrated before and calibration was not cleared Press CLR if ...

Страница 17: ...g will blink on the LCD until the reading is stable When the reading is stable and close to the selected buffer CFM tag blinks Press CFM to confirm calibration The calibrated value is then displayed on the primary LCD and the secondary LCD will display the third expected buffer value After the second calibration point is confirmed immerse the pH electrode and the temperature probe approximately 4 ...

Страница 18: ...CFM to confirm calibration The instruments store the calibration values and return to normal measurement mode FOUR THREE or TWO POINT CALIBRATION Proceed as described in FIVE POINT CALIBRATION section Press CAL after the appropriate accepted calibration point The instruments will return to measurement mode and will memorize the calibration data ONE POINT CALIBRATION Two SETUP selectable options ar...

Страница 19: ...e the buffer value After about 5 seconds you performed the last change the buffer value is updated Press 2nd then SET key if you want to change it again Note Custom buffer value can be adjusted in a 1 00 pH window around the set value CLEAR CALIBRATION Press CLR in any moment during calibration The CLEAR CAL tag will appear and donE message will be displayed on the secondary LCD All old calibratio...

Страница 20: ...rs if the buffer used is contaminated or the electrode is supposed to be either broken or very dirty WRONG CHECKELECTRODE CLEANELECTRODE This message appears if the electrode is supposed to be broken or very dirty WRONG OLD CLEAR CAL OLD This message appears as a result of an erroneous slope condition If the slope between current calibration point and one of the previous calibration that was not o...

Страница 21: ...priate HANNA BNC electrode with pin the instrument will assess electrode condition and response time during each calibration and will display the calibration status for the rest of the day The digital gauge for electrode condition is a representation of the offset and slope performance of the electrode The response gauge is a function of the stabilization time between the first and second calibrat...

Страница 22: ... NUM again to leave the numerical keyboard When the reading is stable in mV range and the Relative mV offset is inside the offset window 2000 mV CFM tag blinks Press CFM to confirm relative mV calibration The instrument will return to measurement mode If the absolute mV reading is out of range or the Relative mV offset is out of the offset window WRONG tag will blink Change the input value or the ...

Страница 23: ...f the time elapsed CAL DUE tags will blink as a reminder Note If the instrument was not calibrated or all calibration parameters were cleared CAL DUE tags will be displayed even if the feature is disabled in SETUP menu LAST pH CALIBRATION DATA The last pH calibration data is stored automatically after a successful calibration To view the pH calibration data press 2nd then GLP key or simply GLP fro...

Страница 24: ...the average of the calibration slopes the percentage is referred to the ideal value of 59 16 mV pH The calibration buffers in calibrating order with the corresponding warnings The first pH calibration buffer The second pH calibration buffer The third pH calibration buffer ...

Страница 25: ...ibration was performed in the same day with current calibration Each calibration buffer is displayed with the resolution from calibration moment If no bUF message appears on the LCD the instrument informs you that calibration was performed in less than five points The Calibration Alarm Time Out status If disabled or the number of days until the calibration alarm will be displayed e g 5 days or fro...

Страница 26: ...rument will display the Relative mV GLP information The date yyyy mm dd of the last calibration as in pH GLP mode Press the ARROW keys to view the next logged calibration parameter pressing the key The Relative mV calibration offset and time hh mm as in pH GLP mode The instrument ID as in pH GLP mode Notes Press 2nd then GLP key at any moment and the instrument will return to measurement mode If c...

Страница 27: ...mply SET from the left keyboard HI 120 only while the instrument is in measurement mode Select the desired setup parameter using the ARROW keys Press CAL if you want to change the item value The selected item e g hour in setting up the correct time and CFM tag will start blinking Press the ARROW keys to change the displayed value or simply use the numerical keys for all numerical parameters Note T...

Страница 28: ...s range and the factory settings default PrEF Command Prefix 0 to 47 16 In Id Instrument ID 0000 to 9999 0000 bEEP Beep Status ON OFF OFF bAUd Baud Rate 600 1200 2400 4800 9600 2400 LAnG Printing Language EnG ItA ESP FrA English USA Printer Status ON OFF OFF CustomC2Custom Buffer 2 2 00 to 16 00 pH no CustomC1Custom Buffer 1 2 00 to 16 00 pH no Date Date yyyy mm dd 2000 01 01 to 2099 12 31 2004 01...

Страница 29: ...f the displayed value allows it e g if 199 9 is displayed by pressing MODE the value will change to 1999 if 19 9 is displayed nothing will happen if pressing MODE Pressing CLR the displayed value will be set to default no The first displayed value after no if one of the ARROW keys is pressed will be 7 00 pH or 0 0 mV in according with the selected range Press NUM from the left keyboard if you want...

Страница 30: ...isplay one of the following messages dur on the secondary LCD and duration hh mm on the primary LCD along with TIME tag The default value is 3 hours The duration can be set from 1 minute to 199 hours and 59 minutes Note Pressing CLR while in changing mode the end condition value will be set to default 3 hours SAMP on the secondary LCD and sample number on the primary LCD The default value is 1000 ...

Страница 31: ...n with full memory due to the fact that logging memory is divided in pages of 20 samples each The appropriate logging interval can be set from 5 seconds to 180 minutes see SETUP for details page 27 Up to 50 record locations are also provided LOGGING THE CURRENT DATA LOG ON DEMAND To store the current reading into memory press LOG while in measurement mode The instrument will display the current da...

Страница 32: ...ologging using the keyboard press 2nd then AutoLOG key or simply AutoLOG from the left keyboard while the instrument is in measurement mode The instrument will display for a few seconds the lot number on the primary LCD and the AutoLOG interval on the secondary LCD together with AutoLOG tag Notes For the other AutoLOG modes the autologging starts stops automatically after the set start stop condit...

Страница 33: ...sage will be displayed on the LCD as in Log on demand mode VIEW LOGGED DATA Press RCL to retrieve the information stored while in measurement mode If no data were logged the instrument displays Otherwise the instrument will display the last pH or Rel mV memorized reading on the primary LCD and the lot number on the secondary LCD Note If LOG mode was invoked while the instrument was in mV Relative ...

Страница 34: ...ssage on the secondary LCD shows that data has been stored in Log on demand mode Pressing 2nd then SET key the instrument toggles between lot number record number Log on demand only or all lots Press CLR to delete the selected lot record or all lots Note Positions remain free in the Log on demand lot by deleting the last logged samples or all the lot If dEL ALL option was selected all logged data ...

Страница 35: ...ing is stable the Auto HOLD tags stop blinking and the reading is frozen Press 2nd then AutoHOLD key again or simply AutoHOLD from the left keyboard to return to normal measurement mode Note Pressing MODE or the specific range keys from the left keyboard the instrument will skip to the displayed range without leaving AutoHOLD mode The LOG key also holds AutoHOLD mode Pressing 2nd then SET GLP or R...

Страница 36: ...de only if the printer is ON and the AutoLOG interval is greater than 30 seconds Note To cancel printing press 2nd then Print key again or simply Print from the left keyboard When in pH measurement mode the printout provides the following infor mation Note For Relative mV measurement mode the Rel mV value will be printed When in GLP mode the printout provides the following information For pH range...

Страница 37: ...be displayed on the LCD together with tag and CFM tag blinking INSTRUMENT SETUP Calibration Alarm Time Out One point cal behaviour pH Custom Buf 1 pH Custom Buf 2 Beep Alarms Alarm high Alarm low AutoLOG Start condition End condition Interval Current Date Current Time Printing Language Printer ON OFF Beep ON OFF Baud rate Command prefix Instrument ID Active Keys next item prev item CAL enter in mo...

Страница 38: ...mode a printout will automatically come out providing the following information For pH mV Log on demand SET AUTOLOG INTERVAL 5s to 180min Active Keys increment decrement CAL exit no save MODE select parameter CFM save exit SETUP REPORT Instr ID 0002 Cal Time Out OFF One Cal Point Pnt Custom Buffer Cb1 3 00 Cb2 Not defined Date 2004 10 15 Time 16 25 31 Printer ON Language ENG Beep OFF ALARM HIGH LI...

Страница 39: ...be print in the selected language START AUTOLOG Instr ID 0002 Lot L03 Date 2004 10 15 Time 18 05 01 Interval 00 30 Slope 99 7 Sample No 1 pH 7 02 mV 0 5 C 25 0 Sample No 2 pH 7 01 mV 0 2 C 25 0 Sample No 3 pH 6 97 mV 1 9 C 24 9 STOP AUTOLOG Date 2004 10 15 Time 18 06 51 Offset 0 1mV ...

Страница 40: ...ress and hold down the CAL keys then power on the instrument The CAL tag will appear and the secondary LCD will show 0 0 ºC or 32 0 ºF The primary LCD will display the measured temperature or the message if the measured tempera ture is out of range Immerse the temperature probe into the vessel with ice and water as close as possible to the reference thermometer Allow a few seconds for the probe to...

Страница 41: ...then power on the instrument The CAL tag will appear and the secondary LCD will show 0 0 mV Set 0 0 mV on the simulator When the reading is stable and close to the selected calibration point CFM tag will blink Press CFM to confirm The secondary LCD will display 600 mV Set 600 0 mV on the simulator When the reading is stable and close to the selected calibration point CFM tag will blink Press CFM t...

Страница 42: ...ossible to remotely control the instrument with any terminal program Use HI 920010 cable to connect the instrument to a PC start the terminal program and set the communication options as follows 8 N 1 no flow control COMMAND TYPES To send a command to the instrument the scheme is command prefix command CR where command prefix is a selectable ASCII character between 0 and 47 default 16 command is t...

Страница 43: ...and temperature reading on Rel mV range Note The temperature is sent with two decimals and in Celsius degrees even if the set temperature unit was Fahrenheit degrees DA Requests the date TI Requests the time MDR Requests the instrument model name and firmware code GLP Requests the calibration data record PAR Requests the setup parameters setting NSL Requests the number of logged samples ML Request...

Страница 44: ...1 5 2 7 7 9 7 6 1 0 1 0 4 2 6 8 6 0 1 0 7 7 7 1 9 0 1 0 0 1 0 5 4 2 1 0 3 6 8 3 8 6 1 7 1 0 4 1 5 8 6 8 9 9 6 7 3 1 9 2 6 9 9 6 8 2 2 1 5 3 5 9 8 8 6 1 6 2 0 4 2 4 8 6 9 8 9 6 8 0 1 9 9 1 9 9 8 2 1 2 1 0 4 4 0 1 3 9 6 1 7 3 0 4 7 3 8 6 3 8 9 6 9 6 0 9 1 8 8 9 8 7 9 1 1 5 4 3 1 1 0 0 7 1 9 4 0 4 4 3 8 6 9 7 9 6 0 4 0 9 7 4 8 9 4 3 8 1 1 0 5 2 2 1 7 0 7 1 2 6 0 4 4 3 8 6 8 7 9 6 4 1 0 9 7 1 8 9 7 9 ...

Страница 45: ...rodes They will disappear when rinsed with water During transport tiny bubbles of air may form inside the glass bulb affecting proper functioning of the electrode These bubbles can be removed by shaking down the electrode as you would do with a glass thermometer If the bulb and or junction is dry soak the electrode in HI 70300 or HI 80300 Storage Solution for at least one hour ...

Страница 46: ...inimize clogging and assure a quick response time the glass bulb and the junction of pH electrode should be kept moist and not allowed to dry out Replace the solution in the protective cap with a few drops of HI 70300 or HI 80300 Storage Solution or in its absence Filling Solution HI 7071 or HI 8071 for single junction and HI 7082 or HI 8082 for double junction electrodes Follow the Preparation Pr...

Страница 47: ...organic Cleaning Solution for 15 minutes Oil grease Rinse with Hanna HI 7077 or HI 8077 Oil and Fat Cleaning Solution IMPORTANT After performing any of the cleaning procedures rinse the electrode thoroughly with distilled water refill the reference chamber with fresh electrolyte not necessary for gel filled electrodes and soak the electrode in HI 70300 or HI 80300 Storage Solution for at least 1 h...

Страница 48: ... in the next figure Put the paper roll on the paper holder attached to the printer Insert the paper edge into the printer slot as shown below Simply press Paper from the left keyboard to feed the printer Allow about 5 cm 2 to exit from the printer Tear the paper out for its edge to be straight as shown below The paper is now properly inserted and the printer is ready to print INSERT TEAR CUT ...

Страница 49: ...j e n a r b m e m 0 0 3 0 7 I H n i k a o S t a r o f n o i t u l o s e g a r o t S r u o h e n o t s a e l t o n s e o d r e t e m e h T e h t h t i w k r o w e b o r p e r u t a r e p m e t r e d r o f o t u O e b o r p e r u t a r e p m e t e b o r p e h t e c a l p e R o t s l i a f r e t e m e h T s e v i g r o e t a r b i l a c s g n i d a e r y t l u a f r e d r o f o t u o r o n e k o r B ...

Страница 50: ... d o m t n e r r u c d e h c a e r e g n a r f o d n E s y e k W O R R A e h t h t i w t u o h t i w s y e k s s e r p t n o D e d o m t n e r r u c n i n o i t c n u f e b t o n n a c s t i g i D e h t h t i w d e c u d o r t n i s y e k c i r e m u n e u l a v m u m i x a M r o f d e h c a e r e g n a r g n i d n o p s e r r o c s t i g i d e t e l e D e g a s s e m r o r E n r P d e y a l p s i...

Страница 51: ...0 10 0 18 0 29 0 40 The resistance of glass electrodes partially depends on the temperature The lower the temperature the higher the resistance It takes more time for the reading to stabilize if the resistance is higher In addition the response time will suffer to a greater degree at temperatures below 25 ºC 77 ºF Since the resistance of the pH electrode is in the range of 50 200 Mohm the current ...

Страница 52: ...ution in FDA approved bottle 500 mL ELECTRODE STORAGE SOLUTIONS HI 70300L Storage Solution 460 mL bottle HI 80300L Storage Solution in FDA approved bottle 460 mL ELECTRODE CLEANING SOLUTIONS HI 70000P Electrode Rinse Sachets 20 mL 25 pcs HI 7073L Protein Cleaning Solution 460 mL bottle HI 7074L Inorganic Cleaning Solution 460 mL bottle HI 7077L Oil Fat Cleaning Solution 460 mL bottle HI 8073L Prot...

Страница 53: ...s and 1 m 3 3 cable as shown below HI 1043P Glass body double junction refillable combination pH electrode Use strong acid alkali HI 1053P Glass body triple ceramic conic shape refillable combination pH electrode Use emulsions HI 1131P Glass body single junction refillable combination pH electrode Use general purpose HI 1083P Glass body micro Viscolene non refillable combination pH electrode Use b...

Страница 54: ... 230 VAC to 12 VDC European plug HI 710012 Voltage adapter from 240 VAC to 12 VDC UK plug HI 710013 Voltage adapter from 230 VAC to 12 VDC South African plug HI 710014 Voltage adapter from 230 VAC to 12 VDC Australian plug HI 8427 pH and ORP electrode simulator with 1 m 3 3 coaxial cable ending in female BNC connectors HI 931001 pH and ORP electrode simulator with LCD and 1 m 3 3 coaxial cable end...

Страница 55: ...tic discharges Avoid touching this glass bulb at all times During operation ESD wrist straps should be worn to avoid possible damage to the electrode by electrostatic discharges Any variation introduced by the user to the supplied equipment may degrade the instruments EMC performance To avoid electrical shock do not use these instruments when voltages at the measurement surface exceed 24 VAC or 60...

Страница 56: ...02 2278 5147 Fax 02 2264 1729 Malaysia Tel 603 5638 9940 Fax 603 5638 9829 Singapore Tel 6296 7118 Fax 6291 6906 SouthAfrica Tel 011 615 6076 Fax 011 615 8582 Taiwan Tel 886 2 2739 3014 Fax 886 2 2739 2983 Thailand Tel 662 619 0708 11 Fax 662 619 0061 UnitedKingdom Tel 01525 850 855 Fax 01525 853 668 USA Tel 401 765 7500 Fax 401 765 7575 For e mail contacts and a complete list of Sales and Technic...

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