Threshold Button
Threshold refers to the amount of force required before the ergoFET begins recording test data. The
threshold level can be set to either High or Low setting, and is displayed in the duration/force window.
Refer to Image A for Threshold Button location.
High Threshold
The High Threshold is most commonly used. In the High setting, three pounds of force must be exerted
before ergoFET begins recording test data. The High threshold allows for easier placement of the unit, and
reduces false starts. High threshold displays force in 0.1 lb increments (.44N) during testing. Begins recording
test data at 3.0 lbs force (12.1N) Records data in 0.1 lb increments up to 300 lbs (.44N increments to 1320N)
Pressing Reset does not change the threshold setting
Low Threshold
The Low threshold setting is designed for more sensitive, lower force readings such as when testing finger
and hand muscle weakness. Greater care must be used when positioning the unit while in the Low setting, as the
threshold of 0.8 lbs (3.6 N) is easily crossed. Begins recording test data at 0.8 lbs (3.6N) Records data in 0.1 lb
increments up to 300 lbs (.44N increments to 1320N) Pressing Reset does not change the threshold setting.
LCD Windows
Peak Force
During testing, the Peak Force LCD displays the actual force being applied to the transducer pad. At test
completion, the maximum force value (peak force) is displayed. Refer to Image B.
Duration/Sec.
The Duration/Sec. LCD window shows the elapsed time (in tenths of second) from the time the force
threshold was crossed until pressure was released. Monitoring test duration is an important element in
maintaining consistency between tests. Also displayed is the Duration/Sec. window is the threshold setting
(Low or High). Refer to Image B.
Image B
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