Samsung PT60A User Manual Page 129

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5-7
Chapter 5 Measurements and Calculations
Measurement Accuracy Table
The following tables show the accuracy of the measurements available using the product. Ensure that
the results of measurement accuracy checks are kept within the ranges specied in the table. Except for
certain applications or probes, the following accuracy ranges should be maintained when measuring
straight distances.
NOTE: To ensure accurate measurements, an accuracy check should be performed at least once
per year. If the measurement accuracy falls outside the ranges specified in the following table,
contact Samsung Medison customer service department.
2D Mode
Measurements
System Tolerance
(Whichever is greater)
Test
Methodology
Accuracy
Based on
Range
Axial Distance < ± 4% or 1mm Phantom Acquisition Full Screen
Lateral Distance < ± 4% or 2mm Phantom Acquisition Full Screen
M Mode
Measurements
System Tolerance
(whichever is greater)
Test
Methodology
Accuracy
Based on
Range
Depth < ± 5% or 3 mm Phantom Acquisition 1 ~ 25 cm
Time < ± 5% Signal generator Acquisition 0.01 - 11.3 sec
PW Spectral Doppler Mode
Doppler Measurement
System Tolerance
(whichever is greater)
Test Methodology Range
Velocity < ± 15% Phantom 0.1cm/s - 8.8 m/s
Time < ± 5% Signal generator 0.01 ~ 11.3 sec
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