Instruction Manual HI 98129 - HI 98130 Waterproof pH, EC/TDS & temperature meters Dear Customer, Thank you for choosing a Hanna product. This manual will provide you with the necessary information for a correct operation. Please read it carefully before using the meter. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com. These instruments are in compliance with the directives. FUNCTIONAL DESCRIPTION SPECIFICATIONS Range Temperature: HI 98129 0.0 to 60.0°C or 32.0 to 140.0°F pH: 0.00 to 14.00 EC: 0 to 3999 µS/cm TDS: 0 to 2000 ppm HI 98130 pH: 0.00 to 14.00 EC: 0.00 to 20.00 mS/cm Resolution HI 98129 HI 98130 Accuracy (@20°C/68°F) TDS: 0.00 to 10.00 ppt 0.1°C or 0.1°F 0.01 pH; 1 µS/cm ; 1 ppm 0.01 pH, 0.01 mS/cm ; 0.01 ppt Temperature ±0.5°C or ±1°F EC/TDS pH pH EC/TDS Temp.Compensation Environment Calibration pH: Automatic EC/TDS: with =0.0 to 2.4%/ºC 0 to 50°C (32 to 122°F); RH 100% pH: at 1 or 2 points with 2 sets of memo rized buffers (pH 4.01/7.01/10.01 or pH 4.01/6.86/9.18) EC/TDS: automatic, at 1 point EC/TDS Calibration Solutions HI 98129 HI7031 (1413 µS/cm) HI7032 (1382 ppm; CONV=0.5) HI70442 (1500 ppm; CONV=0.7) HI 98130 HI7030 (12.88 mS/cm) HI70038 (6.44 ppt; CONV=0.5 or 9.02 ppt; CONV=0.7) Electrode BatteryType/Life Auto-off Dimensions Weight HI 73127 pH electrode (included included) included 4 x 1.5V with BEPS / typical 100 hours After 8 min. 163 x 40 x 26 mm (6.4 x 1.6 x 1.0") 85 g (3.0 oz) EC/TDS Conversion Factor 0.45 to 1.00 (CONV) ±2% f.s. ±0.01 ±0.02 pH ±2% f.s. PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully. If any damage has occurred during shipment, immediately notify your Dealer or the nearest Hanna Customer Service Center. The meters are supplied with: · 4 x 1.5V batteries · HI 73127 pH electrode · HI 73128 Tool to remove the pH electrode Note: Conserve all packing material until the instrument has been observed to function correctly. Any defective item must be returned in its original packing. www.hannainst.com This Instrument is in Compliance with CE Directives Typical EMC Deviation Temperature ±0.5°C or ±1°F WARRANTY HI 98129 and HI 98130 are warranted for one year against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The electrode is warranted for a period of six months. This warranty is limited to repair or replacement free of charge. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the failure. 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 Customer Service department and then send it with shipment costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection. To validate your warranty, fill out and return the enclosed warranty card within 14 days from the date of purchase. All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895 , USA. Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. GENERAL DESCRIPTION HI 98129 and HI 98130 are waterproof pH, EC/TDS and temperature meters. The housing has been completely sealed against humidity and designed to float. All pH and EC/TDS readings are automatically temperature compensated (ATC), and temperature values can be displayed in °C or °F units. For EC/TDS readings, the EC/TDS conversion factor (CONV) is selectable by the user, as well as the temperature compensation coefficient (BETA). The meters can be calibrated at one or two points for pH (with auto-buffer recognition and against five memorized buffer values), and at one point for EC/ TDS. Measurements are highly accurate with a unique stability indicator right on the LCD. A low battery symbol warns the user when the batteries are to be replaced. In addition the Battery Error Prevention System (BEPS) avoids erroneous reading caused by low voltage level by turning the meter off. The HI 73127 pH electrode, supplied with the meters, is interchangeable and can be easily replaced by the user. The stainless steel encapsulated temperature sensor facilitates faster and more accurate temperature measurement and compensation. 1. Battery compartment 2. Liquid Crystal Display (LCD) 3. Stability indicator 4. Low battery indicator 5. ON/OFF/MODE button 6. HI 73127 pH electrode 7. Temperature sensor 8. EC/TDS probe 9. SET/HOLD button 10. Secondary LCD 11. Primary LCD Recommendations for Users Before using this product, make sure that it is entirely suitable for the environment in which it is used. Operation of this instrument in residential areas could cause unacceptable interferences to radio and TV equipment. The glass bulb at the end of the electrode is sensitive to electrostatic 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 instrument's EMC performance. To avoid electrical shock, do not use this instrument when voltages at the measurement surface exceed 24 VAC or 60 VDC. To avoid damages or burns, do not perform any measurement in microwave ovens. ISTR98129R2 01/02 OPERATIONAL GUIDE To turn the meter on and to check battery status Press and hold the MODE button for 2-3 seconds. All the used segments on the LCD will be visible for a few seconds, followed by a percent indication of the remaining battery life. Eg. % 100 BATT. To change the temperature unit To change the temperature unit (from °C to °F), from measurement mode, press and hold the MODE button until TEMP and the current temperature unit are displayed on the lower LCD. Eg. TEMP °C. Use the SET/HOLD button to change the temperature unit, and then press MODE button twice to return to normal measurement mode. To freeze the display Press the SET/HOLD button for 2-3 seconds until HOLD appears on the secondary display. Press either button to return to normal mode. To turn the meter off Press the MODE button while in normal measurement mode. OFF will appear on the lower part of the display. Release the button. Notes: Notes · Before taking any measurement make sure the meter has been calibrated. · To clear a previous calibration, press the MODE button after entering the calibration mode. The lower LCD will display ESC for 1 second and the meter will return to normal measurement mode. The CAL symbol on the LCD will disappear. The meter will be reset to the default calibration. · If measurements are taken in different samples successively, rinse the probe thoroughly to eliminate cross-contamination; and after cleaning, rinse the probe with some of the sample to be measured. bration) or pH 6.86 BUFF (for NIST 4.01/6.86/9.18 calibration). · Press the SET/HOLD button to change the buffer value. · Press the MODE button to return to normal measuring mode. Calibration procedure From measurement mode, press and hold the MODE button until CAL is displayed on the lower LCD. Release the button. The LCD will display pH 7.01 USE or pH 6.86 USE (if you have selected the NIST buffer set). The CAL tag blinks on the LCD. · For a single-point pH calibration, place the electrode in any buffer from the selected buffer set (eg. pH 7.01 or pH 4.01 or pH 10.01). The meter will recognize the buffer value automatically. If using pH 4.01 or pH 10.01, the meter will display OK for 1 second and then return to measurement mode. If using pH 7.01, after recognition of the buffer the meter will ask for pH 4.01 as second calibration point. Press the MODE button to return to measurement mode or, if desired, proceed with the 2-point calibration as explained below. Note: Note It is always recommended to carry out a twopoint calibration for better accuracy. · For a two-point pH calibration, place the electrode in pH 7.01 (or 6.86 if you have selected the NIST buffer set). The meter will recognize the buffer value and then display pH 4.01 USE. Rinse the electrode thoroughly to eliminate crosscontamination. Place the electrode in the second buffer value (pH 4.01 or 10.01, or, if using NIST, pH 4.01 or 9.18). When the second buffer is recognized, the LCD will display OK for 1 second and the meter will return to normal measurement mode. The CAL symbol on the LCD means that the meter is calibrated. To change the EC/TDS conversion factor (CONV) and the temperature compensation coefficient (BETA) · From measurement mode, press and hold the MODE button until TEMP and the current temperature unit are displayed on the lower LCD. Eg. TEMP °C. · Press the MODE button again to show the current conversion factor. Eg. 0.50 CONV. · Press the SET/HOLD button to change the conversion factor. · Press the MODE button to show the current temperature compensation coefficient . Eg. 2.1 BETA. · Press the SET/HOLD button to change the temperature compensation coefficient . · Press the MODE button to return to normal measuring mode. Calibration procedure · From measurement mode, press and hold the MODE button until CAL is displayed on the lower LCD. · Release the button and immerse the probe in the proper calibration solution: HI7031 (1413 µS/cm) for HI98129 and HI7030 (12.88 mS/cm) for HI98130. · Once the calibration has been automatically performed, the LCD will display OK for 1 second and the meter will return to normal measurement mode. · Since there is a known relathionship between EC and TDS readings, it is not necessary to calibrate the meter in TDS The CAL symbol on the LCD means that the meter is calibrated. Remove the probe by rotating it counterclockwise and then pulling it out. Insert a new pH electrode following the above instructions in reverse order. BATTERY REPLACEMENT The meter displays the remaining battery percentage every time it is switched on. When the battery level is below 5%, the - + symbol on the bottom left of the LCD lights up to indicate a low battery condition. The batteries must be immediately replaced. If however the battery level is so low as to cause erroneous reading, the Battery Error Prevention System (BEPS) will automatically turn the meter off. To change the batteries, remove the 4 screws located on the top of the meter. pH ELECTRODE MAINTENANCE · When not in use, rinse the electrode with water to minimize contamination and store it with a few drops of storage (HI 70300) or pH 7 (HI 7007) solution in the protective cap after use. DO NOT USE DISTILLED OR DEIONIZED WATER FOR STORAGE PURPOSES. · If the electrode has been left dry, soak in a storage or pH 7 solution for at least one hour to reactivate it. · To prolong the life of the pH electrode, it is recommended to clean it monthly by immersing it in the HI 7061 cleaning solution for half an hour. Afterwards, rinse it thoroughly with tap water and recalibrate the meter. · The pH electrode can be easily replaced by using the supplied tool (HI 73128). Insert the tool into the probe cavity as shown below. Once the top has been removed, carefully replace the 4 batteries located in the compartment while paying attention to their polarity. Replace the top, making sure that the gasket is properly seated in place, and tighten the screws. ACCESSORIES HI 73127 HI 73128 HI 70004P HI 70006P HI 70007P HI 70009P HI 70010P HI 77400P HI 7004M HI 7006M HI 7007M HI 7009M HI 7010M HI 70030P HI 70031P HI 70032P HI 70038P HI 70442P HI 7061M HI 70300M Replaceable pH electrode Tool to remove the electrode pH 4.01 solution, 20 mL sachet (25 pcs) pH 6.86 solution, 20 mL sachet (25 pcs) pH 7.01 solution, 20 mL sachet (25 pcs) pH 9.18 solution, 20 mL sachet (25 pcs) pH 10.01 solution, 20 mL sachet (25 pcs) pH 4 & 7 solutions, 20 mL sachet (5 each) pH 4.01 solution, 230 mL bottle pH 6.86 solution, 230 mL bottle pH 7.01 solution, 230 mL bottle pH 9.18 solution, 230 mL bottle pH 10.01 solution, 230 mL bottle 12.88 mS/cm @25ºC calibration solution, 20 mL sachet (25 pcs) 1413 µS/cm @25ºC calibration solution, 20 mL sachet (25 pcs) 1382 ppm @25ºC calibration solution, 20 mL sachet (25 pcs) 6.44 ppt @25ºC calibration solution, 20 mL sachet (25 pcs) 1500 ppm @25ºC calibration solution, 20 mL sachet (25 pcs) Electrode cleaning solution, 230 mL bottle Electrode storage solution, 230 mL bottle pH MEASUREMENTS & CALIBRATION Taking measurements Select the pH mode with the SET/HOLD button. Submerge the electrode in the solution to be test ...