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Summary of Contents for Apera Instruments Gro Star AI102G
- Page 1 aperainst.com AI102G GS2 Premium Soil pH Pen (Gen II) User Guide...
- Page 2 Lab-Grade Instruments Designed for Growers Scan to watch the video tutorial...
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Page 3: Table Of Contents
Lab-Grade Instruments Designed for Growers page Main Features Preparation Before First Use pH Calibration Measure Solution's pH Measure Soil pH Directly with TruRead Measure a Soil Slurry Other Functions Reading Hold Temperature Unit Switch Auto. Power Off ORP Measurement Probe Cleaning Probe Storage Battery Replacement Probe Replacement... -
Page 4: Main Features
Lab-Grade Instruments Designed For Growers ® Thank you for choosing Apera GroStar GS2 Premium Soil pH Pen Tester (Gen II). This premium pen has been designed specifically for professional soil pH test as well as nutrient solution pH test. Since 1991, Apera Instruments has been dedicated to providing advanced lab-grade instruments and sensors. -
Page 5: Preparation Before First Use
Lab-Grade Instruments Designed For Growers Preparation Before First Use Remove the battery slip; Loosen the probe cap ring, then pull out the probe cap. Prepare a bucket of pure water (tap water is ok. Ideally use RO or distilled water). Rinse off the probe with pure water and then shake off excess water. - Page 6 Lab-Grade Instruments Designed For Growers 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 7: Measure Solution's Ph
Lab-Grade Instruments Designed For Growers If the calibration fails, the screen will turn red. For details, refer to Section 13 Troubleshooting Guide. Always perform at least a 2-point pH calibration to ensure accuracy. Start with pH 7, followed by pH 4 immediately. If you happened to turn off the pen before calibrating pH 4, you need to start with pH 7 again after rebooting the pen, then pH 4. -
Page 8: Measure Soil Ph Directly With Truread
Lab-Grade Instruments Designed For Growers Measure Soil pH Directly In the practice of direct soil pH testing, as soil is not evenly distributed by its nature, different locations and different depth will generate slightly different pH readings. Even when the angle at which you stick in the probe is different, the reading can also be slightly affected. -
Page 9: Measure A Soil Slurry
Lab-Grade Instruments Designed For Growers After each test, the probe must be thoroughly rinsed with clean water. Make sure to clean off the dirt on the white PTFE junction ring using the probe cleaning brush. For details of probe cleaning, refer to Section 8. After measurement, put the probe back in the storage cap and soak in the 3M KCL solution. -
Page 10: Auto. Power Off
Lab-Grade Instruments Designed For Growers The pen will automatically power off if there is no operation within 10 minutes. If you want to turn off the Auto. Power Off function, go turn off the tester first, then hold for about 5 seconds until you see "Auto off". Then it will power on and go to measurement mode automatically. -
Page 11: Probe Storage
Lab-Grade Instruments Designed For Growers Probe Storage The spear pH probe must be soaked in 3M KCL soaking solution when not in use. Fill in 3M KCL soaking solution to about 1/3 of the probe cap, store the probe in it, then screw on the cap ring tightly. -
Page 12: Probe Replacement
Lab-Grade Instruments Designed For Growers Probe Replacement Twist off the probe ring, unplug the old probe; plug in the new probe (make sure to align the connector's position properly), then twist on the probe ring. pH probes are technically chemical batteries, hence don’t last forever. Every pH probe will eventually age and fail even if you don't use it. -
Page 13: Troubleshooting Guide
Lab-Grade Instruments Designed For Growers Troubleshooting Guide Trouble Reason How to fix Power on the tester, calibrate pH7 first, then pH4. After pH4 is Incorrect calibration order calibrated, if you want to calibrate pH7 again, you need to reboot the tester. Poor quality standard Replace with fresh and clean standard calibration solutions solutions... -
Page 14: Technical Specs
Lab-Grade Instruments Designed For Growers Technical Specs 0.0-14.0 pH Range 0-50℃（32-122 ℉） Resolution 0.1 pH，0.1℃ /0.1 ℉ ±0.1 pH， Accuracy ±0.1℃ /±0.1 ℉ Temperature compensation Automatic Automatic 1 to 3 points (7/4/10) Calibration *pH 10.01 solution sold separately Unit pH, ℃ , ℉ Power supply 4-AAA alkaline batteries Backlight... -
Page 15: Accessories
Lab-Grade Instruments Designed For Growers Accessories pH Calibration Kit pH Calibration Kit (pH 4/7/10, 16oz. each (pH 4/7/10, 16oz. each & CalPod Solution Organizer) & CalPod Solution Organizer) SKU: AI1114 SKU: AI1116 Probe Care Kit Replacement Probes SKU: AI1170 includes 3M KCL soaking solution (4oz.), GS2-E GS5-E probe cleaning solution (8oz.),... - Page 16 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.
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