Instruction Manual HI 98140 HI 98150 HI 98160 Calibration Check pH/mV/Temperature Meters w w w. h a n n a i n s t .
Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using the instruments. This manual will provide you with the necessary information for correct use of the instruments, as well as a precise idea of their versatility. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com.
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 Customer Service Center. Each instrument is supplied with: • HI 1230B Non refillable Combination double-junction, pH Electrode with gelled electrolyte (HI 98160) • HI 1618D Amplified pH electrode with built-in temperature sensor and EEPROM and DIN connector.
When the SMART electrode is attached to the meter again, it is automatically recognized. This technology allows the operator to optimize time and efficiency with unsurpassed safety. It avoids erroneous measurements taken in the event the pH electrode is substituted after calibration. This series of electrodes also incorporates a temperature sensor, eliminating the need for an additional temperature probe. They also offer an extended temperature range from –20 ºC to 120 ºC (–4 ºF to 248 ºF).
FUNCTIONAL DESCRIPTION HI 98140 & HI 98150 HI 98160 5
1) Liquid Crystal Display (LCD). 2) Range key, to select pH or mV range (HI 98150 & HI 98160 only). Setup key, to enter/exit SETUP mode. 3) On/Off key, to turn the instrument ON and OFF. 4) CAL key, to enter/exit calibration mode. GLP key, to display Good Laboratory Practice information. 5) 2nd key, to select second key function. key, to manually increase temperature or other parameters. 6) Mode key, to select measurement resolution, 0.1 pH / 0.
SPECIFICATIONS –4.0 to 20.0 pH –4.00 to 20.00 pH RANGE ±699.9 mV; ±2000 mV (HI 98150 & HI 98160) –20.0 to 120.0 ºC (–4.0 to 248.0 ºF) 0.1 pH 0.01 pH RE SOLUTION 0.1 mV (±699.9mV) (HI 98150 & HI 98160) 1 mV (±2000mV) (HI 98150 & HI 98160) 0.1 ºC (0.1 ºF) ±0.1 pH ±0.01 pH ACCURACY @ 20 ºC / 68 ºF ±0.2 mV (±699.9 mV) (HI 98150 & HI 98160) ±1 mV (±2000 mV) (HI 98150 & HI 98160) ±0.2 ºC (±0.
OPERATIONAL GUIDE INITIAL PREPARATION The instrument is supplied complete with batteries. For placing the batteries inside the meter, see page 33. To prepare the instrument for use, connect the pH electrode to the input socket on the top of the instrument. For HI 98160 connect the temperature probe to the temperature socket too. The temperature probe is used in conjunction with the pH electrode for pH temperature compensation, but it can also be used independently to take temperature measurements.
The LCD will show the pH measurement together with the temperature of the sample. In order to take more accurate pH measurements, make sure that the electrode and instrument is calibrated (see page 11 for details). Hanna recommends to keep the pH electrode wet and to rinse throughly with the sample before measurements. The pH reading is directly affected by temperature. In order for the instrument to measure the pH accurately, temperature must be taken into consideration.
Submerse the ORP electrode tip (3cm/1¼”) into the sample to be tested and wait a few seconds for the reading to stabilize. Measurements within the ±699.9 mV range are displayed with 0.1 mV resolution, while outside this range the resolution automatically switches to 1 mV. The “ATC” (or “MTC”) tag is turned off because ORP measurements are not temperature compensated. For accurate ORP measurements, the surface of the electrode must be clean and smooth.
p H CALIBRATION Hanna recommends frequent calibrations, especially if high accuracy is required. The pH range should be recalibrated: • Whenever the pH electrode is replaced. • At least once a week, but daily is recommended. • After testing aggressive chemicals. • After electrode is cleaned. • When calibration alarm time out is expired - “Cal Due” tag blinks (if feature is enabled). • If “Outside Cal Range” message blinks during pH measurement (the measurement range is not covered by current calibration).
• If necessary, press the ARROW keys to select a different buffer value. • 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” and “Cal Point 2” tags.
• The calibrated value is then displayed on the primary LCD and the secondary LCD will display the fifth expected buffer value. • After the fourth calibration point is confirmed, submerse the pH electrode and the temperature probe approximately 3 cm (1¼”) into the fifth 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. • The “ ” tag will blink on the LCD until the reading is stable.
• If “WRONG” tag and “OLd” message are displayed on the secondary LCD, an inconsistency exists between new and previous (old) calibration data. Clear old calibration parameters and proceed with calibration from the current calibration point. The instrument will keep all confirmed values during current calibration. • With one-point calibration there is no “Condition” and only the frame is shown. Calibration time out is active.
CLEAR CALIBRATION To clear calibration press 2nd then CLR or CLR alone after entering CAL mode. The “CLr ALL” message will be displayed on the LCD along with “Cal Due” CLR message blinking. All old calibrations, starting with current selected buffer are cleared and the instrument continues calibration. Note: If CLR is pressed during the first calibration point, the instrument returns to measurement mode.
p H BUFFER TEMPERATURE DEPENDENCE The 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. TEMP pH BUFFERS ºC ºF 1. 68 4. 01 6. 86 7. 01 9. 18 10. 01 12. 45 0 32 1.67 4.01 6.98 7.13 9.46 10.32 13.38 5 41 1.67 4.00 6.95 7.10 9.39 10.24 13.18 10 50 1.67 4.00 6.
However, temperature correction during pH measurements provides values at the temperature of measurement. Actual pH values may differ if measured at two different temperatures. RELATIVE m V CALIBRATION (HI 981 50 & HI 981 60 98150 98160 60)) To enter Rel mV operation press 2nd and Mode from mV measurement. • Place the ORP electrode into solution or standard. • Wait for a stable mV to be displayed. • Press CAL when the instrument is in RELATIVE mV measurement mode.
GOOD LABORATORY PRACTICE (GLP) GLP is a set of functions that allows storage and retrieval of data regarding the maintenance and status of the electrode. All data regarding pH or Rel mV calibration is stored for the user to review when necessary. HI 98140 and HI 98150 use electrodes with built-in EEPROM in which calibration data is read at start up and stored after calibration. The meter can automatically analyze the data and advise the user during measurements if a problem is found with a clear message.
Press the ARROW keys to view the next calibration parameter (pressing the key): • The pH calibration slope and offset. The GLP slope is the average of the calibration slopes; the percentage is referred to the ideal slope value. For example 59.16 mV/pH at 25 °C. • The calibration buffers in calibrating order, for the last calibration.
Notes: • The “OLd” message displayed beside the pH value means that this buffer was not used during last calibration. Press 2nd then Setup if you want to see calibration date (or time, if old calibration was performed in the same day with current calibration). In this case, the calibration buffer number is not displayed on the LCD. • If “not CAL” message appears on the LCD, the instrument informs you that calibration was performed in less than five points. • The Calibration Alarm Time Out status.
SETUP Setup mode allows viewing and configuring the following parameters: • Calibration Alarm Time Out (pH range only)(dAY) • Custom buffers (1 or 2) (pH range only) (Custom) • One-point calibration behavior (pH range only) (1Pnt) • Current Time (hour & minute) • Current Date (month, day & year) • Beep Status (bEEP) • Instrument ID (InSld) • Auto-off backlight timer (LIGH) • Auto power off timer (AOFF) • Temperature Unit To enter SETUP mode, press Setup button directly on the HI 98140 and 2nd then Setup on
SETUP PARAMETERS Abbreviat ion What it does Valid Values Default d AY Use this parameter to set interval b e t we e n c a l i b ra ti on s b e f ore a OFF or 1 to c a l i b r a t i o n d u e m e s s a g e i s 7 d a ys displayed. OFF Custom E nter the up to 2 custom buffer values in this parameter. Permits no or -4.00 t w o " u s e r s o l u t i o n s " t o b e to 20.00 pH selectable for buffer calibration. no 1Pnt A on e-p oi n t ca l i b ra ti on ca n b e used after a 2-5 buffer calibration.
Note: The custom buffers can be set only with 0.01 pH resolution, at 25 ºC. Press Range (HI 98150 & HI 98160) or 2nd and Mode (HI 98140) repeatedly while in custom buffer setting mode until the closest buffer value to the desired custom buffer to be set is displayed on the LCD. If selecting “no” option, the selected custom buffer is removed. After removing one custom buffer, the custom buffer list is reordered.
VIEW LOGGED DATA Press 2nd then RCL to retrieve the information stored while in measurement mode for the specific range. “RECALL MEMORY” will be displayed on LCD. If no records were logged, the instrument will display “no rEC” message blinking. Otherwise, the instrument will display the logged data, in according with the selected range: • If RCL mode was entered while the instrument was in pH range: the last pH memorized reading appears on the primary LCD and the record number on the secondary LCD.
• Press the ARROW keys to change the record number. • Press CAL or Range or CLR to escape from DEL screen and enter view record items mode. Note: Pressing 2nd then Setup the instrument toggles between record number and all records. • Press 2nd then CFM or CFM to confirm delete. The “nuLL” message will be displayed on the primary LCD for the selected record. While “nuLL” message is displayed the 2nd, CAL, Range and CLR keys are inactive. Press the ARROW keys to select an undeleted record.
TEMPERATURE CALIBRATION (for technical personnel only) All the instruments are factory calibrated for temperature. Hanna’s temperature probes are interchangeable and no temperature calibration is needed when they are replaced. If the temperature measurements are inaccurate, temperature recalibration should be performed. For an accurate recalibration, contact your dealer or the nearest Hanna Customer Service Center, or follow the instructions below.
• 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 (HI 98160 only) (for technical personnel only) All the instruments are factory calibrated for mV. Hanna’s ORP electrodes are interchangeable and no mV calibration is needed when they are replaced. If the mV measurements are inaccurate, mV recalibration should be performed.
PC INTERFACE Data transmission from the instrument to the PC can be done with the HI 92000 Windows® compatible software (optional). HI 92000 also offers graphing and an on-line help feature. Data can be exported to the most popular spreadsheet programs for further analysis. To connect your instrument to a PC, use a standard USB cable. Make sure that your instrument is switched off and plug one connector to the instrument’s USB socket and the other to the USB port of your PC.
CHR xx Change the instrument range according with the parameter value (xx): • xx=01 pH range/0.01 resolution • xx=02 pH range/0.
MDR GLP • Reading status (2 chars): R - in range, O - over range, U - under range. First character corresponds to the appropriate range reading. Second character corresponds to mV reading. • Primary reading (corresponding to the selected range) - 7 ASCII chars, including sign and decimal point. • Secondary reading (only when primary reading is not mV) - 7 ASCII chars, including sign and decimal point. • Temperature reading - 7 ASCII chars, with sign and two decimal points, always in ºC.
• Rel mV calibration data (if available), which contains: • the calibration offset, with sign (7 chars) • the calibration time, yymmddhhmmss (12 chars). PAR Requests the setup parameters setting. The answer string contains: • Instrument ID (4 chars) • Calibration alarm time out (2 chars) • SETUP information (2 chars): 8 bit hexadecimal encoding.
Notes: • • • • • • • The mV reading, with sign and decimal point (7 chars) - only for HI 98150 and HI 98160 • The logged time, yymmddhhmmss (12 chars) • The calibration offset, with sign and decimal point (7 chars) - not available for ISE • The calibration slope, with sign and decimal point (7 chars) - not available for Rel mV range • Temperature probe presence (1 char) “Err8” is sent if the instrument is not in measurement mode. “Err6” is sent if the requested range is not available.
BATTERIES REPLACEMENT If the batteries become weak, the display will flash the battery symbol to advise the user that approx. 1 hour of working time is left. It is recommended to replace the batteries soon. To replace the batteries, follow the next steps: • Turn the instrument OFF. • Open the battery compartment cap (located on the top of the instrument). • Remove old batteries. • Insert three new 1.5V AAA batteries in the battery compartment, following the instructions on the rear of the instrument.
The instrument is provided with the BEPS (Battery Error Prevention System) feature, which automatically turns the instrument off when the batteries level is too low to ensure reliable readings. At start up the display will show “0 bAtt” message for a few seconds, then the instrument automatically turns off. LCD MESSAGE GUIDE TAGS & SYMBOLS • Mode tags light up for indicating the corresponding active mode, and blink for warning the user. MEASURE on: Instrument in measurement mode.
• Main active key messages light up for indicating the corresponding active key. CAL on: CAL key available. CFM blinking: ask confirmation of calibration or set value. SETUP on: SETUP key available. GLP on: GLP key available. RANGE on: RANGE key available. LOG on: LOG key available. RCL on: RLC key available. • Battery symbol blinking: low battery condition. The batteries should be replaced. • Calibration messages: Out CAL range blinking: reading out of calibration range.
TEMPERATURE CORRELATION FOR p H SENSITIVE GLASS The temperature limit for the HI 1230B and HI 1618D is from 0 to 80 °C with optimum measurements between 20 and 40 °C. 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).
ELECTRODE CONDITIONING & MAINTENANCE Not present in gel electrodes. PREPARATION PROCEDURE Remove the electrode protective cap. DO NOT BE ALARMED IF ANY SALT DEPOSITS ARE PRESENT. This is normal with electrodes and they will disappear when rinsed with water. Do not be concerned if salt crystals are visible inside the electrode. This will not effect function. During transport tiny bubbles of air may have formed inside the glass bulb. The electrode cannot function properly under these conditions.
MEASUREMENT Verify if electrode is calibrated before making measurements. Rinse the pH electrode tip with distilled water. Submerse the tip (bottom 3 cm /1¼”) 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 if the ORP probes tip is completly submersed.
pH CLEANING PROCEDURE 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. • Oil/grease Rinse with Hanna HI 7077 or HI 8077 Oil and Fat Cleaning Solution.
TROUBLESHOOTING GUIDE SYMPTOMS PROBLEM SOLUTI ON Slow response/excessive drift. D irty p H electrod e. Soa k th e electrod e tip in H I 7 0 6 1 s ol u t i on f or 3 0 minutes and then follow the Cleaning Procedure. Rea d in g flu ctu a tes u p a nd d own (noise). Clogged/dirty junction. L o w e l e c t r ol y t e l e v e l ( r e f i l l a b l e e l e c t r od e s only). Clea n the electrod e. Refill with fresh electrolyte (refilla b le electrod es only). Check connector attachment.
ACCESSORIES pH CALIBRATION SOLUTIONS HI 50004-01 pH 4.01 Buffer Solution, 20 mL sachet, 10 pcs HI 50004-02 pH 7.01 Buffer Solution, 20 mL sachet, 25 pcs HI 50007-01 pH 10.01 Buffer Solution, 20 mL sachet, 10 pcs HI 50007-02 pH 4.01 Buffer Solution, 20 mL sachet, 25 pcs HI 50010-01 pH 7.01 Buffer Solution, 20 mL sachet, 10 pcs HI 50010-02 pH 10.01 Buffer Solution, 20 mL sachet, 25 pcs HI 5016 pH 1.68 Buffer Solution, 500 mL bottle HI 5004 pH 4.01 Buffer Solution, 500 mL bottle HI 5068 pH 6.
HI 8082 3.
HI 1131B Glass-body, single junction, refillable, combination pH electrode. Use: general purpose. 9.5mm DIA 0.37" 12 mm 0.5" HI 1131 120 mm 4.7" "S" VERSION HI 1330B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials. 5mm DIA 0.2" 5mm 0.2" HI 1330 120 mm 4.7" "S" VERSION HI 1331B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: flasks. 8 mm 0.3" 7.5mm DIA 0.29" HI 1331 210 mm 8.
HI 1332B Plastic-body (PES), double junction, refillable, combination pH electrode. Use: general purpose. 12 mm 0.5" HI 1332 "S" VERSION 120 mm 4.7" FC 100B Plastic-body (PVDF), double junction, refillable, combination pH electrode. Use: general purpose for food industry. 12 mm 0.5" FC 100 120 mm 4.7" FC 200B Plastic-body (PVDF), open junction, conic, Viscolene, non-refillable, combination pH electrode. Use: meat & cheese. 6 mm 0.25" FC 200 75 mm 2.
FC 911B Plastic-body (PVDF), double junction, refillable with built-in amplifier, combination pH electrode. Use: very high humidity. 12 mm 0.5" FC 911 110 mm 4.3" HI 1413B Glass-body, single junction, flat tip, Viscolene, non-refillable, combination pH electrode. Use: surface measurement. 12 mm 0.5" HI 1413 110 mm 4.3" ORP ELECTRODES HI 3131B Glass-body, refillable, combination platinum ORP electrode. Use: titration. 12 mm 0.5" HI 3131 150 mm 5.
EXTENSION CABLE FOR SCREW-TYPE ELECTRODES (SCREW TO BNC ADAPTER) HI 7855/1 Extension cable 1 m (3.3') long HI 7855/3 Extension cable 3 m (9.9') long HI 7855 SERIES CABLE CONNECTORS CONNECTOR AND 3.0 mm (0.12") CABLE WITH BNC CONNECT TO THE BNC SOCKET OF THE METER CONNECT TO SCREW TYPE ELECTRODES SMART ELECTRODES HI 1615D combination pH electrode, glass-body, single junction, refillable with built-in temperature NTC sensor and EEPROM for GLP data storing.
HI 92000 Windows® compatible software. HI 76405 Electrode holder RECOMMENDATIONS FOR USERS Before using these products, make sure they are entirely suitable for the environment in which they are used. Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equipment, requiring the operator to follow all necessary steps to correct interferences. The glass bulb at the end of the pH electrode is sensitive to electrostatic discharges.
Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA Technical Support for Customers Tel. (800) 426 6287 Fax (401) 765 7575 E-mail tech@hannainst.com www.hannainst.
