Brookfield LFRA Texture Analyzer - Manual (Page 3)

Brookfield Engineering Labs., Inc. Page 3 Manual No. M/05-370-B0507
I. INTRODUCTION
The Brookfield LFRA Texture Analyzer measures the resistance of a material to an applied force.
The force is applied through a vertical compression of the sample and the resistance is measured
through a load cell. This resistance can be interpreted to provide a measure of the texture or other
physical characteristics of the material.
The LFRA Texture Analyzer is the most recent development of the original Boucher Jelly Tester.
This original product was created as the Stevens Texturemeter evolving into the CNS Farnell LFRA
TA (Leatherhead Food Research Association Texture Analyzer). Brookfield’s enhanced design
maintains the characteristics of the original equipment while expanding the measurement capabili-
ties and ease of use by incorporating modern digital technology.
The principle of operation of the LFRA Texture Analyzer is to drive a probe into a material. The
resistance of the material to this compression is measured by a calibrated load cell and reported
in units of grams on the instrument display. The measured load will be a function of the probe
geometry, speed of compression, test method, and sample preparation.
There are four load cell ranges available for the LFRA Texture Analyzer offered by Brookfield:
Model Load Cell Range (grams)
LFRA-100 100g
LFRA-1000 1000g
LFRA-1500 1500g
LFRA-4500 4500g
Higher load cell ranges are used for testing materials with a stronger structure.
I. Components
Please check to be sure that you have received all components, and that there is no damage. If
you are missing any parts, please notify Brookfield Engineering or your local Brookfield agent
immediately. Any shipping damage must be reported to the carrier.
Part.Number. Quantity
Component Part Number Quantity
LFRA Texture Analyzer varies 1
Probe varies per order
Operating Manual M05-370 1
Power Cord 1
115 Volt or DVP-65 1
230 Volt DVP-66
Optional
Bloom Strip TA-CS-100 or 1
TA-CS-1000
Calibration Weight Set (1) TA-CW-100C, -1000C, -1500C, -4500C 1
Standard Probe kit TA-P-KIT2 1
TexturePro Lite Software TA-T-PRO 1
Note: 1. Optional components may include probes or fixtures. See Appendix A for details.
2. See III.9 for Calibration Checking (pg. 14).