QUIZ: J47

What is the primary difference between the J47 and J57 refractometer models? *

J57 is handheld; J47 is benchtop

J47 offers full temperature control; J57 does not

J47 uses temperature correction; J57 provides full electronic temperature control

J57 measures sugar only; J47 measures chemicals only

Which industries are the J47 HA and J57 HA models specifically designed for? *

Automotive and aerospace

Food and beverage

Pharmaceutical and cosmetics

Wastewater and mining

What is one key feature of the prism used in the J47 and J57 models? *

Made of fragile quartz

Self-heating ceramic

Ultra-flat industrial sapphire, resistant to scratching

Requires weekly calibration

What is a main benefit of the continuous measurement display mode? *

It measures multiple samples at once

It updates automatically without touching any buttons

It prints results directly to a built-in printer

It cleans the prism after each reading

Why is cleaning between samples so important for refractometer accuracy? *

To reset the internal software

Because most refractometers lack digital displays

Because leftover samples can cause contamination and affect results

To maintain WiFi connectivity

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