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Summary of Contents for Apera PH20
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Page 1: Instruction Manual
PH20 Value pH Tester Instruction Manual APERA INSTRUMENTS, LLC www.aperainst.com... - Page 2 1. Battery Installation Please install batteries according to the following steps. *Please note direction of batteries: All POSITIVE SIDES (“+”) FACING UP. (Wrong installation of batteries will cause damage to the tester and potential hazards) 2. Keypad Functions ■Short press------- < 2 seconds ■Long press-------- >...
- Page 3 3. Complete Kit Diagram - 2 4. Calibration 4.1 If first time use or unused for a long time, pour certain tap water in probe cap, soak probe for about 5 minutes. 4.2 Short press to turn on. Rinse in pure water and dry it. Diagram - 3 4.3 Long press to enter calibration mode;...
- Page 4 be in calibration solution of 7.00 pH, then followed by 2nd or 3rd point calibration. For details, please refer to the following table: Calibration Recommended Accuracy Calibration Solution Indication icon and Range 1-point Accuracy ≥ 0.1pH 7.00 pH Calibration Measuring Range <7.0 7.00 pH and 4.00 pH 2-point Calibration...
- Page 5 properly. To measure distilled or deionized water’s pH, users need to use a specialized electrode. Do not store probe in distilled water or deionized water because they will cause damage to the glass membrane of the pH probe. The probe should be stored in 3M KCL solution for best accuracy or stored without any liquid.
- Page 6 pH standard buffer solution series Icons USA series NIST series 1.68 pH and 4.00 pH 1.68 pH and 4.01 pH Three-Point 7.00 pH 6.86 pH calibration 10.01 pH and 12.45 pH 9.18 pH and 12.45 pH 6.4 For the self-diagnosis information, please refer to the table below: Symbol Self-Diagnosis information How to fix...
- Page 7 Warranty period is the time limit to provide free service for the products purchased by customers, not the service life of the tester or probe. *Apera Instruments reserves the right to update the information in this manual without giving notice in advance.
- Page 8 APERA INSTRUMENTS, LLC Address: 977 Old Henderson Rd, Columbus Ohio 43220 Tel: 1-614-285-3080 Email: info@aperainst.com Website: www.aperainst.com...
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