Question and Answer Forum

MISCO Refractometer Q&A Forum

Find answers to many common questions concerning applications, operation, calibration, and maintenance of refractometers:

Refractometer Maintenance (6)

You can shut the Palm Abbe digital refractometer off at any time by pressing and holding the button until you see “Shutting Off / Goodbye” displayed on the LCD display.

For more information about refractometer care, maintenance, and troubleshooting, please see the following page: Digital Handheld Refractometer Training.

We have 100s of scales, among them many for  ethylene glycol (EG) and propylene glycol (PG) that can be programmed into the Palm Abbe PA203x digital refractometer.

You can select scales for measuring freeze point, boil point, percent by weight, percent by volume, specific gravity, density, and more.

You can get a list of all the standard ethylene glycol (EG) and propylene glycol (PG) refractometers by navigating to the Products>Digital Handheld page on our website and then using the filters to list refractometers with ethylene glycol (EG) and propylene glycol (PG) scales. You may also want to try the Build-Your-Own section of our website and select the exact scales you want.

If you have a device you need reprogrammed, we can do that via a service return.  If you are looking to have a new device programmed for specific scales, visit our Build Your Own Page.

Yes! When the refractometer is on, press and hold the

 button for about 8 seconds and the serial number will be displayed.

For more information about refractometer care, maintenance, and troubleshooting, please see the following page: Digital Handheld Refractometer Training.

Pressing the SELECT button will cycle through all the possible scale choices on the Palm Abbe Digital Handheld Refractometer. If you want to permanently change the refractometer scales, you may send it back to us and we will be happy to reprogram it for you for a slight charge.

For more information about refractometer care, maintenance, and troubleshooting, please see the following page: Digital Handheld Refractometer Training.

ou can shut off the backlight option in the Palm Abbe digital refractometer by doing the following: 1. Turn the refractometer on by pressing and releasing the button. 2. Press and release the button until the display reads “LCD-Light?” / “[GO] NO.” 3. Press the Button to select “NO,” and the backlight will not come on again until reactivated.

For more information about refractometer care, maintenance, and troubleshooting, please see the following page

The Palm Abbe digital refractometer uses two standard AAA batteries. To change the refractometer batteries, use a Phillips head screwdriver to remove the two battery compartment screws on the bottom of the instrument. The battery door will be visible on the underside of the refractometer even if the refractometer is equipped with a Rubber Armor Jacket ™. When you remove the two screws, be careful not to misplace the tiny O-Ring seals that are attached to them. Discard the old batteries and install fresh ones in the refractometer. Be sure that battery polarity is correct or it will result in irreversible damage to you refractometer. Before reinstalling the door, check the condition of the battery cover gasket. Clean the gasket if it is dirty or contact MISCO sales department for a new battery cover gasket if yours is damaged. Once the batteries are in place in the refractometer, position the battery door and insert the screws. Tighten the screws firmly but do not over tighten.

For more information about refractometer care, maintenance, and troubleshooting, please see the following page: Digital Handheld Refractometer Training.