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Related Manuals for Hanna Instruments HI 120
Summary of Contents for Hanna Instruments HI 120
- Page 1 Instruction Manual HI 120 & HI 122 pH/mV/Temperature Bench Meters with Calibration Check w w w. h a n n a i n s t . c o m...
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Page 2: Table Of Contents
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. -
Page 3: Preliminary Examination
PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any damage, notify your Dealer or the nearest Hanna Service Center. Each instrument is supplied with: •... -
Page 4: Functional Description Hi 120
FUNCTIONAL DESCRIPTION HI 120 Front Panel Electrode Condition Primary LCD Electrode Response Secondary LCD HI 120 pH / mV Meter AutoHOLD AutoLOG MODE RelmV Reso Calibration Check Rear Panel pH/ORP TEMP POWER RS232 1) Left Keyboard 2) ON switch 3) OFF switch 4) Right Keyboard 5) Pin input socket 6) BNC electrode connector... -
Page 5: Functional Description Hi 122
FUNCTIONAL DESCRIPTION HI 122 Front Panel Paper Roll Electrode Condition Primary LCD Electrode Response Secondary LCD HI 122 pH / mV Meter AutoHOLD Print Paper AutoLOG RelmV Reso Calibration Check Rear Panel pH/ORP TEMP POWER RS232 1) Left Keyboard 2) ON switch 3) OFF switch 4) Right Keyboard 5) Pin input socket... - Page 6 HI 120 KEYBOARD ON THE LEFT AutoHOLD AutoLOG RelmV Resolution Shortcuts to alternate functions 1) AutoHOLD key, to freeze the first stable reading on the LCD. 2) GLP key, to display Good Laboratory Practice Information. 3) SET key, to enter/exit SETUP mode. key, to toggle between parameters while in RECALL or SETUP modifying mode (backwards), to toggle between absolute mV and temperature while in Relative mV mode and between pH buffer and...
- Page 7 HI 120 MAIN KEYBOARD ON THE RIGHT HI 120 pH / mV Meter MODE Calibration Check 1) CAL key, to enter and exit/escape calibration mode. SET key (second function), to enter/exit SETUP mode. 2) CFM key, to confirm different values. GLP key (second function), to display Good Laboratory Practice Information.
- Page 8 HI 122 KEYBOARD ON THE LEFT AutoHOLD Print Paper AutoLOG RelmV Resolution Shortcuts to alternate functions 1) AutoHOLD key, to freeze the first stable reading on the LCD. 2) Print key, to obtain a printout or to cancel printing. 3) Paper key, to pull out the paper. key, to toggle between parameters while in RECALL or SETUP modifying mode (backwards), to toggle between absolute mV and temperature while in Relative mV mode and between pH buffer and...
- Page 9 HI 122 MAIN KEYBOARD ON THE RIGHT HI 122 pH / mV Meter Calibration Check 1) CAL key, to enter and exit/escape calibration mode. SET key (second function), to enter/exit SETUP mode. 2) CFM key, to confirm different values. GLP key (second function), to display Good Laboratory Practice Information. 3) CLR key, to clear calibration or logged data.
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Page 10: Hi 120 And Hi 122 Specifications
H I 1 2 0 A N D H I 1 2 2 SPECIFICATIONS – 0 0 . 0 0 . – 0 0 . 0 . 6 ± 9 . 9 ± 2 – 0 . 0 0 . 0 C º... -
Page 11: Operational Guide
OPERATIONAL GUIDE POWER CONNECTION Plug the 12 VDC adapter into the power supply socket. Notes: • These instruments use non volatile memory to retain the pH, mV, temperature calibrations and all other settings, even when unplugged. • Make sure a fuse protects the main line. ELECTRODE AND PROBE CONNECTIONS For HANNA P type pH or ORP electrodes (with internal reference) connect the electrode’s BNC to the socket on the back of the instrument (#6 on page 4... - Page 12 pH MEASUREMENTS Make sure the instrument has been calibrated before taking pH measurements. • Press MODE to enter pH mode. Note: To change pH resolution, press MODE again or simply Resolution from the left keyboard. • Submerge the electrode tip and the temperature probe approximately 4 cm (1½”) into the sample to be tested.
- Page 13 Press NUM to change the temperature value with the numerical keys. The “2nd” tag will blink. Press CLR if you want to delete digits of the displayed value. The remaining digits will shift to right. Introduce the desired value. If the value is out of temperature range, a long beep will be heard.
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Page 14: Temperature Measurements
The Relative mV reading is equal to the difference between the absolute mV input value and relative mV offset established in the relative 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. -
Page 15: Ph Calibration
pH CALIBRATION Calibrate the instrument often, especially if high accuracy is required. The instrument should be recalibrated: • Whenever the pH electrode is replaced. • At least once a week. • After testing aggressive chemicals. • If “CAL DUE” tags are blinking during measurement. •... - Page 16 All new calibrations will override existing stored calibration data, in a ±0.2 pH window, at these calibration points. The slopes adjacent to the calibration points will be reevaluated. If the new calibration point has no correspondence in the existing stored calibration data, it is added to it if this is not full, or the instrument will ask which buffer will be replaced by the current buffer.
- Page 17 • The “ ” tag 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 second expected buffer value, together with “CAL”, “Cal Point 2”...
- Page 18 • After the third calibration point is confirmed, immerse the pH electrode and the temperature probe approximately 4 cm (1½”) into the fourth buffer solution and stir gently. The temperature probe should be close to the pH electrode. • If necessary, press the ARROW keys to select a different buffer value. •...
- Page 19 If the existing stored calibration is full (five calibration points), the instrument asks which buffer will be replaced by current buffer. Press the ARROW keys to select another buffer to be replaced. Press CFM to confirm the buffer that will be replaced. Press CAL to leave calibration without replacing.
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Page 20: Enhanced Calibration Messages
ENHANCED CALIBRATION MESSAGES The stored calibration history to used issue error and warning messages during calibration to help ensure the highest accuracy. As electrode aging is normally a slow process, substantial changes from previous calibrations are likely due to a temporary problem with the electrode or buffers. -
Page 21: Electrode Condition & Electrode Response Time
CLEAN ELECTRODE This warning message appears in order to alert the user that some dirt or deposits could be on the electrode. Refer to the electrode Cleaning Procedure. This ensures the removal of film, dirt or deposits on the glass bulb and reference junction. -
Page 22: Relative Mv Calibration
The electrode response is evaluated only when calibration has been performed using pH 7.01 or pH 6.86, pH 4.01 and pH 10.01 or pH 9.18 buffers. When the instrument cannot evaluate the electrode response or pH 1.68/12.45 buffer was used as calibration buffer, the response gauge will be empty. -
Page 23: Good Laboratory Practice (Glp)
GOOD LABORATORY PRACTICE (GLP) GLP is a set of functions that allows storage and retrival of data regarding the maintenance and status of the electrode. All data regarding pH and Rel mV calibration is stored for the user to review when necessary. CALIBRATION ALARM TIME OUT For pH calibration, all the instruments allow the user to set the number of days before the next required pH calibration. - Page 24 • The pH calibration offset. • The pH calibration slope (the GLP slope is 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.
- Page 25 The fourth pH calibration buffer: The fifth pH calibration buffer: Notes: • The “OLd” message displayed beside the pH value means that this buffer was not used during last calibration. Press 2nd then SET key if you want to see calibration date (or time, if old calibration was performed in the same day with current calibration).
- Page 26 LAST RELATIVE mV CALIBRATION DATA Last Relative mV calibration data is stored automatically after a successful calibration. To view the Relative mV calibration data, press 2nd then GLP key or simply GLP from the left keyboard (HI 120) while in Relative mV measurement mode. The instrument will display the Relative mV GLP information.
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Page 27: Setup
S E T U P Setup mode allows viewing and modifying the following parameters: • Calibration Alarm Time Out • One-point calibration behaviour • Custom Buffer 1 • Custom Buffer 2 • Alarm High Limit • Alarm Low Limit • AutoLOG Start Condition •... - Page 28 If there is another item to be set (e.g. minutes), press MODE or from the left keyboard. The other item will start blinking. Press the ARROW keys to change the displayed value or simply use the numerical keys for all numerical parameters. Press CFM to confirm or CAL to escape.
- Page 29 Notes: • The custom buffers can be set only with 0.001 pH resolution. If 0.01 pH resolution is selected during calibration, the displayed custom buffer value is a rounded one. • For calibration alarm time out, custom buffers, alarm limits, start and stop condition items, if pressing CLR while in changing mode, the selected item will be set to default.
- Page 30 AutoLOG SETUP AutoLOG Start Condition • Select the “Strt” item. The displayed AutoLOG start condition will be the previous set one. The default value is “btn” – button (start with key). • Press and keep hold down MODE while in view mode, when time is displayed, to view the set date.
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Page 31: Logging
L O G G I N G This feature allows the user to log pH and Rel mV, together with temperature automatically. All logged data can be transferred to a PC through the RS232 port. The maximum logging space is 1000 record locations (samples). This can be divided in 1 up to 50 lots (one lot can use all the free space). - Page 32 If the LOG space is full, “FULL LOC” message will be displayed on the LCD for a few seconds with “LOG” tag blinking, and then ”FrEE 0” message. The instrument returns to normal measurement mode. AutoLOGGING The setable AutoLOG modes make these instruments very useful in a wide range of applications: •...
- Page 33 To stop autologging, press 2nd then AutoLOG key again, or simply TEMPERATURE CALIBRATION AutoLOG from the left keyboard. (for technical personnel only) The instrument will display for a few seconds the lot number on the primary LCD and the sample number on the secondary LCD, together with “AutoLOG”...
- Page 34 Press MODE or from the left keyboard and the instrument will display the next logged parameter as shown in the table below: Parameter Primary LCD Secondary LCD mV reading Temperature TIME Hour & minutes Seconds DATE Year Month & day OFFSET Offset value Lot (or record) number...
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Page 35: Autohold
A u t o H O L D To freeze the first stable reading on the LCD press 2nd then AutoHOLD key, or simply AutoHOLD from the left keyboard while the instrument is in measurement mode. The “Auto” ”HOLD” tags will be displayed blinking on the LCD until the reading will stabilize. -
Page 36: Printing (Hi 122 Only)
PRINTING (HI 122 only) A complete set of information based on the measured, set or recorded data can be printed. Data can be printed on demand (for current reading in measurement mode, GLP and SETUP modes) by pressing 2nd then Print key, or simply Print from the left keyboard, or automatic (for AutoLOG and Log on demand modes). - Page 37 When in SETUP mode, the following information can be printed: • If 2nd then Print key are the first INSTRUMENT SETUP keys pressed after entering SETUP Calibration mode, a SETUP table of contents Alarm Time Out One-point cal will be printed: behaviour pH Custom Buf.1 pH Custom Buf.2...
- Page 38 • Press CFM to print the SETUP SETUP REPORT REPORT or CAL to escape without Instr ID 0002 printing. Cal Time Out OFF One-Cal Point Custom Buffer 3.00 Not defined Date 2004/10/15 Time 16:25:31 Printer Language Beep ALARM HIGH LIMIT Rel mV ALARM LOW LIMIT Rel mV...
- Page 39 • For AutoLOG mode: START AUTOLOG Instr ID 0002 Date 2004/10/15 Time 18:05:01 Interval 00:30 Slope 99.7% Offset 0.1mV Sample No 7.02 -0.5 °C 25.0 Sample No 7.01 -0.2 °C 25.0 Sample No 6.97 °C 24.9 STOP AUTOLOG Date 2004/10/15 Time 18:06:51 Note: If selecting a different printing language, all data will be print in...
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Page 40: Temperature Calibration (For Technical Personnel Only)
TEMPERATURE CALIBRATION (f o r t e c h n i c a l p e r s o n n e l o n l y ) All the instruments are factory calibrated for temperature. Hanna’s temperature probes are interchangeable and no temperature calibration is needed when they are replaced. -
Page 41: Mv Calibration (For Technical Personnel Only)
• Press CFM to confirm. The instrument returns to measurement mode. Note: If the reading is not close to the selected calibration point, “WRONG” tag will blink. Change the temperature probe and restart calibration. mV CALIBRATION ( f o r t e c h n i c a l p e r s o n n e l o n l y ) All the instruments are factory calibrated for mV. -
Page 42: Pc Interface
Notes: • Other cables than HI 920010 may use a different configuration. In this case, communication between instrument and PC may not be possible. • If you are not using Hanna Instruments HI 92000 software, please see the following instructions. SENDING COMMANDS FROM PC It is also possible to remotely control the instrument with any terminal program. - Page 43 CHR xx Change the instrument range according with the parameter value (xx): • xx=00 pH range/0.001 resolution • xx=01 pH range/0.01 resolution • xx=03 mV range • xx=04 Relative mV range The meter will answer for these commands with: <STX> <answer> <ETX> where: <STX>...
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Page 44: Ph Buffer Temperature Dependence
pH BUFFER TEMPERATURE D E P E N D E N C E Temperature has an effect on pH. The calibration buffer solutions are affected by temperature changes to a lesser degree than normal solutions. During calibration the instrument will automatically calibrate to the pH value corresponding to the measured or set temperature. -
Page 45: Electrode Conditioning & Maintenance
E L E C T R O D E C O N D I T I O N I N G & MAINTENANCE PREPARATION PROCEDURE Remove the protective cap of the pH electrode. DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with electrodes. - Page 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.
- Page 47 pH CLEANING PROCEDURE • General Soak in Hanna HI 7061 or HI 8061 General Cleaning Solution for approximately ½ hour. • Protein Soak in Hanna HI 7073 or HI 8073 Protein Cleaning Solution for 15 minutes. • Inorganic Soak in Hanna HI 7074 Inorganic Cleaning Solution for 15 minutes.
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Page 48: Printer Maintenance (Hi 122 Only)
PRINTER MAINTENANCE (HI 122 only) HI 122 instrument uses plain paper rolls 44 mm width. To insert a new paper roll, follow the procedure below: • For an easier insertion, cut the paper edge as shown in the next figure: •... -
Page 49: Troubleshooting Guide
T R O U B L E S H O O T I N G G U I D E o l S p s e / e s c x e s s e e v i y t r i c e l o r t . - Page 50 T R O U B L E S H O O T I N G G U I D E ( c o n t . ) r e t s i d a l p a t a t a e b i l t a r n o i...
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Page 51: Temperature Correlation For Ph Sensitive Glass
TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS 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). -
Page 52: Accessories
A C C E S S O R I E S pH BUFFER SOLUTIONS HI 70004P pH 4.01 Buffer Sachets, 20 mL, 25 pcs HI 70007P pH 7.01 Buffer Sachets, 20 mL, 25 pcs HI 70010P pH 10.01 Buffer Sachets, 20 mL, 25 pcs HI 7001L pH 1.68 Buffer Solution, 500 mL bottle HI 7004L... - Page 53 ORP PRETREATMENT SOLUTIONS HI 7091L Reducing Pretreatment Solution, 460 mL bottle HI 7092L Oxidizing Pretreatment Solution, 460 mL bottle pH ELECTRODES All electrodes with code ending with P are supplied with BNC & pin connectors and 1 m (3.3') cable, as shown below: HI 1043P Glass-body, double junction, refillable, combination pH electrode.
- Page 54 HI 1330P Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials. HI 1332P Plastic-body (Ultem ® ), double junction, refillable, combination pH electrode. Use: general purpose. ORP ELECTRODES HI 3131P Glass-body, refillable, combination platinum ORP electrode. Use: titration. Consult the Hanna General Catalog for more electrodes with BNC and pin connectors.
- Page 55 24 VAC or 60 VDC. To avoid damage or burns, do not perform any measurements in microwave ovens. Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.
- Page 56 SALES AND TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769.0666 • Fax (03) 9769.0699 China: Tel. (10) 88570068 • Fax (10) 88570060 Egypt: Tel. & Fax (02) 2758.683 Germany: Tel. (07851) 9129-0 • Fax (07851) 9129-99 Greece: Tel. (210) 823.5192 • Fax (210) 884.0210 Indonesia: Tel.
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