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•  Products not purchased from Apera or an Apera-authorized distributor or reseller. 

 

How Do You Get Service? 

To begin a warranty claim you must return the Product to the point of purchase with valid 

proof of purchase. 

 

Limitation of Liability & Acknowledgments 

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THIS WARRANTY AND THE 

REMEDIES SET OUT ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHER 

WARRANTIES, GUARANTEES AND REMEDIES (ORAL OR WRITTEN, EXPRESS OR 

IMPLIED). EXCEPT AS PROVIDED IN THIS WARRANTY AND TO THE MAXIMUM 

EXTENT PERMITTED BY LAW, APERA INSTRUMENTS IS NOT RESPONSIBLE FOR 

SPECIAL, INCIDENTIAL OR CONSEQUENTIAL LOSS OR DAMAGES, OR ANY OTHER 

LOSS OR DAMAGES RESULTING FROM SALE OR USE OF THE PRODUCT, OR 

BREACH OF WARRANTY, HOWEVER CAUSED, INCLUDING DAMAGES FOR LOST 

PROFITS, PERSONAL INJURY OR PROPERTY DAMAGE. 

 

IT IS UNDERSTOOD AND AGREED BY CONSUMER UPON PURCHASE OF A PRODUCT 

THAT, EXCEPT AS STATED IN THIS WARRANTY, APERA INSTRUMENTS IS NOT 

MAKING AND HAS NOT MADE ANY EXPRESS OR IMPLIED WARRANTY OR OTHER 

REPRESENTATION REGARDING THE PRODUCT AND DISCLAIMS ANY WARRANTY OF 

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TO THE EXTENT 

PERMITTED BY LAW. ANY WARRANTIES WHICH ARE IMPOSED BY LAW AND CANNOT 

BE DISCLAIMED ARE HEREBY LIMITED IN DURATION TO THE PERIOD AND 

REMEDIES PROVIDED IN THIS WARRANTY. 

 

SOME JURISDICTIONS (STATES OR COUNTRIES) DO NOT ALLOW EXCLUSION OR 

LIMITATION FOR INCIDENTIAL OR CONSEQUENTIAL DAMAGES, OR LIMITATION ON 

HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION OR 

EXCLUSION MAY NOT BE APPLICABLE. IF ANY PROVISION OF THIS WARRANTY IS 

JUDGED TO BE ILLEGAL, INVALID OR UNENFORCEABLE, THE REMAINING 

PROVISIONS OF THE WARRANTY SHALL REMAIN IN FULL FORCE AND EFFECT. 

 

Governing Law; Authority 

This warranty is governed by the laws of the state of country where Product is purchased, 

without regard to its choice of law principles. Except as allowed by law, Apera does not limit 

or exclude other rights a consumer may have with regard to the Product. No Apera 

distributor, employee or agent is authorized to modify, extend, or otherwise change the terms 

of this warranty. 

 

Summary of Contents for 28APE190349/AI11010

Page 1: ...GroStar GS1 Premium pH Pen Tester User Manual APERA INSTRUMENTS Europe GmbH www aperainst de...

Page 2: ...rket Since 1991 Apera instruments has been dedicated to providing hi tech accurate lab grade instruments and sensors GroStar s intelligent design reduces the guesswork so you can easily manage your cr...

Page 3: ...s the level to which you should pour the soaking solution or sample solution For details of probe storage see Section 7 Premium pH Probe Built with low resistance lithium glass membrane with double ju...

Page 4: ...e in 3M KCL soaking solution for 5 minutes before use 2 5 If the tester hasn t been used for a long time over 1 month please soak the probe in the 3M KCL soaking solution for at least 1 hour then cali...

Page 5: ...up to the right of Calibrating pH 10 is usually not necessary unless your estimated target pH is greater than 8 0 pH 3 5 will disappear in 30 days after calibration reminding you to recalibrate the te...

Page 6: ...1 If necessary you can manually hold lock the reading by short pressing Press it again to cancel the hold 5 2 Long press to switch temp unit between F and C 5 3 The tester will automatically power off...

Page 7: ...store the probe in it Close the probe cap tightly with the O ring If you find white crystals inside or outside the probe cap it is perfectly normal It is the 3M KCL soaking solution that crystalizes...

Page 8: ...as it will cause greater measurement error and damage to the probe Test your samples and perform calibration close to room temperature as much as possible 10 4 Never test oily liquids 10 5 Make sure...

Page 9: ...ully immersed in the solution at least 1 inch deep Air bubbles around the sensor Make a quick stir in the solution to remove air bubbles Probe is not properly connected or the pin connector is broken...

Page 10: ...alkaline batteries Backlight White measurement Green calibration Red errors Reading hold Manual Warranty Two years for the instrument one year for the probe pH probe Low resistance lithium glass membr...

Page 11: ...proof of purchase as defined above and determines the Product is defective Apera may in its sole discretion either a repair the Product with new or refurbished parts or b replace the Product with a n...

Page 12: ...D HAS NOT MADE ANY EXPRESS OR IMPLIED WARRANTY OR OTHER REPRESENTATION REGARDING THE PRODUCT AND DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TO THE EXTENT PERMITTED B...

Page 13: ...12 APERA INSTRUMENTS Europe GmbH Wilhelm Muthmann Stra e 18 42329 Wuppertal Germany Contact info aperainst de Website www aperainst de Tel 49 202 51988998...

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