Digital Refractometer Care & Maintenance

Keep Measuring Surface Clean


The most important piece of information we can give you is, “Keep the Measuring Surface Clean!” It is extremely important to thoroughly clean the refractometer measuring surface after each use to ensure the most accurate readings and to prevent cross-contamination. You can clean the sapphire measuring surface with a wet, soft, clean cloth or paper towel. For the most accurate readings, keep the measuring surface clean and free of residue at all times.


Special Care of Rubber Armor Jacket


If your Palm Abbe is equipped with a Rubber Armor Jacket, you must take special care to ensure that any excessive sample fluid does not leak down and become trapped between the jacket and instrument body. If this happens, pull the instrument from the Rubber Armor and wipe off the fluid before storing. This precaution is especially significant if the Palm Abbe is stored in the rugged waterproof storage case, since the draining fluid will remain trapped in the case. This is even more important if you are testing hazardous or corrosive fluids that could damage the Palm Abbe or leak onto people or other equipment over time.


Use Only One or Two Drops of Sample


You only need one or two drops of fluid to take a measurement. Use a disposable pipette to place the sample on the measuring surface and use the same pipette to suck the sample back up and dispose of it. This will leave very little residue to wipe off. NEVER submerge your instrument or hold it under a stream of fluid or running water. 


Important Precautions!




DO NOT hold instrument under running water.


DO NOT leave instrument in direct sunlight or in a vehicle on a sunny day.


DO NOT subject instrument to temperatures above 50°C (122°F) or less than –10°C (14°F).


DO NOT attempt to repair, modify, or disassemble any portion of the instrument.


DO NOT let liquid fall from instrument onto clothing or other surfaces after taking readings.


DO NOT drop or subject instrument to strong shocks or vibration.


DO NOT use a metal device to transfer samples to the measuring surface.


DO NOT use an instrument unless you have personal knowledge of its calibration.


DO NOT attempt to recharge the batteries that came with the instrument.


DO NOT press the buttons with anything other than a finger.


Note: When storing the instrument for long periods of time, it is advisable to remove the batteries. Use only AAA batteries. Pay close attention to battery polarity when inserting batteries. Reversing the polarity can cause instrument damage. 

The entire refractometer may be cleaned with a soft, clean cloth or paper towel, dampened with a mild liquid dish soap and water. The use of solvents or petroleum-based cleaners is not recommended.


Additional Training:

How to Take a Reading with the Palm Abbe Digital Handheld Refractometer
How to Zero-Set a Digital Handheld Refractometer
The Heat Is On - Measuring Hot Fluids
How to Change a Digital Refractometer Battery
What Makes the Palm Abbe the BEST Digital Handheld Refractometer in the World?
Digital Refractometer Error Messages
The Art of the Chart – Charting Solution Concentrations Using a Refractometer
3 Digital Refractometer Secrets Even Your Mother Doesn’t Know


Build Your Own Refractometer

While we pride ourselves in having one of the largest selections of refractometers available, we recognize that every user is different and that there may not be a one-size-fits-all solution to your measurement needs. Build-Your-Own Refractometer allows you to design a custom refractometer to your exact specifications. Just select the desired number of scales, choose protection options, and then add accessories to your design - truly making it your own. When you're done you can choose to print a custom quote or place the order immediately! Give it a try! Of course, call us anytime for personalized service. 866-831-1999

Build Your Own Refractometer

Our Build-Your-Own Refractometer section allows you to design a custom refractometer to your exact specifications. First, select the measurement scales. Next, add options and then accessories to your design. Finally, you can print a custom quote or order immediately. TRY IT NOW!


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Contact MISCO

6275 Cochran Road, Solon OH 44139

Toll Free 866-831-1999

Phone 440-349-1500 

Fax 440-349-1511