Related Manuals for Apera Instruments GroStar Premium GS1
Summary of Contents for Apera Instruments GroStar Premium GS1
- Page 1 GroStar™ GS1 Premium pH Pen Tester User Manual APERA INSTRUMENTS (Europe) GmbH www.aperainst.de...
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Page 2: Table Of Contents
Thank you for choosing the Apera GroStar™ GS1 Premium pH Pen Tester. This premium pen has been designed specifically for the horticultural market. 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 crops success. - Page 3 Short Press Long Press 1. Power on 3-Color LCD Screen 2. Manual hold Power off • White for measurement mode Press again to • Green for calibration mode cancel hold. • Red for calibration error measurement mode, press to Start calibration turn on/off the stands for stabilized backlight.
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Page 4: Preparation Before First Use
Preparation Before First Use Pull out the battery insulation slip, and take off the probe cap. Rinse off the probe in clean water, then shake off excess water. Perform a 2-point calibration at pH 7 and pH 4. For calibration tutorial, refer to Section If you find the probe cap is dried out, soak the probe in 3M KCL soaking solution for 5 minutes before use. - Page 5 Hold until screen turns green. The pen starts automatic calibration. Wait for "Good" to show up (in 10-15 seconds), indicating the calibration is completed, then the pen returns to measurement mode. Short press any key while calibrating (in green screen) to cancel calibration and return to measurement.
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Page 6: Ph Measurement
pH Measurement Power on and remove the probe cap. Rinse the probe with clean water and shake off excess water. Fully submerge the probe into the solution at least 1 inch deep, make a quick stir to remove potential air bubbles around the probe. -
Page 7: Probe Storage
For tough contaminants, remove the sensor shield, soak the probe in Apera’s cleaning solution or detergent water for 30 minutes. Then use a soft brush to remove the contaminants. Afterwards, soak the probe in 3M KCL soaking solution for at least 1 hour. -
Page 8: Probe Replacement
Probe Replacement • Screw off the probe ring, unplug the old probe; plug in the new probe (make sure to align the connector's position properly), and screw on the probe ring. Probes don’t last forever. Every probe will eventually age and fail even if you don't use it that often. - Page 9 Clean the probe with Apera’s cleaning solution or Contaminated probe detergent water. Clean the probe with Apera’s cleaning solution, then soak Reading is Clogged junction always it in 3M KCL soaking solution overnight. slowly Aged probe Replace the probe. changing, Testing pH of low won’t iconic strength...
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Page 10: Technical Specs
12 Technical Specs 0.0 to 14.0 pH, Range 0 to 50˚C (32 to 122˚F) 0.1 pH, Resolution 0.1˚F/0.1˚C ±0.1 pH, Accuracy ±1˚C/±1˚F Temperature compensation Automatic pH: automatic 1 to 3 points (7/4/10) pH-Calibration *10.01 pH solution sold separately Unit pH, ˚F, ˚C Power Supply 4-AAA alkaline batteries Backlight... -
Page 11: Accessories
Warranty How Long Does the Coverage Last? Apera Instruments® (Apera) warrants the GroStar™ GS4 Premium pH/EC Combo Pen Tester (Product) for a period of 24 months for the instrument and 12 months for the probe from date of purchase by original purchaser or consumer. Proof of purchase is required for the warranty to be effective (store sales receipt for Product showing model number, payment, and date of purchase). - Page 12 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...
- Page 13 APERA INSTRUMENTS (Europe) GmbH Wilhelm-Muthmann-Straße 18 42329 Wuppertal, Germany Contact: info@aperainst.de Website: www.aperainst.de Tel. +49 202 51988998...
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