Dear Customer, SPECIFICATIONS Thank you for choosing a Hanna product. Checker Range 0.00 to 14.00 pH Read carefully this instruction manual before Resolution 0.01 pH using the instrument. If you need additional Accuracy ( 20C) 0.2 pH HI 98103 technical information, do not hesitate to e-mail Calibration Manual, 2 points us at tech hannainst.com. pH tester with Electrode HI 1270 (included) This instrument is in compliance with the Environment 0 to 50C (32 to 122F) replaceable electrode directives. RH 95% max Battery type 2x1.5V alkaline Battery life approx. 3000 hours of continuous use PRELIMINARY EXAMINATION Dimensions 66x50x25 mm (2.6x2.2x1 ) Remove the instrument from the packing mate- (meter only) rial and examine it carefully to make sure that Weight 50 g (1.8 oz) no damage has occurred during shipment. If there is any damage, immediately notify your Dealer. ACCESSORIES The meter is supplied complete with HI 1270 pH electrode HI 1270 Replaceable pH electrode with 2 x 1.5V alkaline batteries screw-type connector instructions HI 70004P pH 4.01 buffer sachet (20 ml, 25 pcs) Note: Conserve all packing material until the HI 70007P pH 7.01 buffer sachet (20 ml, instrument has been observed to func- 25 pcs) tion correctly. Any defective item must HI 70010P pH 10.01 buffer sachet (20 ml, be returned in its original packing. 25 pcs) HI 70300M Storage solution, 230 ml bottle HI 7061M Cleaning solution, 230 ml bottle Recommendations for Users WARRANTY Before using this product, make sure that it is entirely suitable This meter is guaranteed for one year against de- for the environment in which it is used. Operation of this fects in workmanship and materials when used for its instrument in residential areas could cause interference to radio intended purpose and maintained according to instruc- and TV equipment. The glass bulb at the end of the pH electrode tions. The electrode is guaranteed for a period of is sensitive to electrostatic discharges. Avoid touching this glass six months. This warranty is limited to repair or re- bulb at all times. Any variation introduced by the user to the placement free of charge. Damages due to accident, supplied equipment may degrade the instrument s EMC performance. To avoid electrical shocks, do not use this misuse, tampering or lack of prescribed maintenance instrument when voltage at the measurement surface exceeds are not covered. If service is required, contact the 24 Vac or 60 Vdc. To avoid damage or burns, do not perform dealer from whom you purchased the instrument. If any measurement in microwave ovens. under warranty, report the model number, date of pur- chase, serial number and the nature of the failure. If the repair is not covered by the warranty, you will be noti- fied of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Ser- vice department and then send it with shipment costs prepaid. When shipping any instrument, make sure it is Checker is a registered Trademark properly packaged for complete protection. ofHanna Instrument www.hannainst.com IST98103 12/04CALIBRATION For best results, calibrate frequently. Dip the tip of the electrode (bottom 4 cm/ 1 ) in pH 7.01 buffer solution at room tem- perature. Allow the reading to stabilize. Use a small screwdriver to adjust the pH7 trimmer until the display readspH 7.01 . Rinse the electrode with water and dip it in pH 4.01 (or pH 10.01) buffer solution. Allow the reading to stabilize. INITIAL PREPARATION Remove the protective cap and immerse the With a small screwdriver adjust the pH4/10 tip of the electrode (bottom 4cm/1 ) in the trimmer until the display readspH 4.01 (or The pH electrode is shipped dry. Before using sample to be tested.pH 10.01 ). the Checker , remove the protective cap and Stir gently and wait for stable reading. condition the electrode by soaking the tip (bot- NEVER IMMERSE THE ELECTRODE OVER tom 4 cm/1 ) in pH 7.01 buffer solution for a THE MAXIMUM IMMERSION LEVEL. THE couple of hours. Then follow the calibration CONNECTOR MUST BE ALWAYS CLEAN procedure. AND DRY. After use, rinse the electrode OPERATION with water and store it with Do not be alarmed if white crystals appear a few drops of HI70300 around the cap. This is normal with pH elec- storage solution in the pro- trodes and they dissolve when rinsed with tective cap. water. DO NOT USE DISTILLED OR DEIONIZED WA- Connect the electrode to the meter. TER FOR STORAGE PURPOSES. Always replace the protective cap after use. Calibration is now complete. BATTERY REPLACEMENT ALWAYS CALIBRATE USING FRESH BUFF- Replace the batteries when the display fades ER SOLUTIONS. or the meter cannot be switched on. Remove the battery cover on the back of the meter. Insert 2 new 1.5V batteries, while paying attention to their polarity. Batteries should only be replaced in a safe area using the battery type specified in this Turn the Checker on by sliding the switch instruction manual. on the top.