Lutron FR-5120 Fruit Hardness Tester, 20 kg Precision Sclerometer

Lutron FR-5120 Fruit Hardness Tester

The Lutron FR-5120 is a precision fruit sclerometer that measures the hardness of most kinds of fruit, such as apples, pears, strawberries and grapes, from small soft fruits to large hard ones. Hardness is an accepted indicator of a fruit's degree of maturity, which makes the tester a practical tool for improving fruit quality and for decisions on harvest, storage and transport.

The instrument uses an exclusive load cell transducer and a microprocessor circuit, with a capacity of 20.00 kg and a resolution of 0.01 kg (10 g). Readings are shown in kg, lb or N on a large backlit LCD, with peak hold of the maximum load, zero (tare) over the full capacity and a positive/reverse display. Fruit hardness is calculated as force divided by the tip area (P = N / S, in kg/cm²).

It is suited to fruit research departments, fruit companies, fruit farms, agricultural colleges and universities. The 6 mm or 11 mm tip covers 0 to 13 kg for fruits such as apples, pears, peaches and kiwis, while the 11 mm tip covers 0 to 20 kg for very hard fruits.

Key Features

• Capacity 20 kgf x 0.01 kgf (10 gf); units kg / lb / N
• Load cell sensor with accuracy of ± (0.5 % + 2 digits)
• Tension and compression measurement with peak hold (max. load)
• Zero button works for both normal and peak hold measurement; full-capacity tare
• Positive / reverse display on a large LCD with backlight
• Fast / slow response time push button
• Four penetrometer tips: 3 mm, 6 mm, 8 mm and 11 mm
• RS-232 computer interface; USB cable and data acquisition available as options
• Hand-held use or mounting on the optional FS-1001 test stand
• Overload protection, low power consumption and built-in DC 9V adapter input socket

Package Contents

• Operating manual
• 11 mm penetrometer tip, FRTP-11
• 8 mm penetrometer tip, FRTP-8
• 6 mm penetrometer tip, FRTP-6
• 3 mm penetrometer tip, FRTP-3
• Carrying case

Optional Accessories

• Test stand, model FS-1001
• RS232 cable, model UPCB-01
• USB cable, model USB-01
• SD card data recorder, DL-9602SD
• Data logging & data recorder software, model SW-U801-WIN