Olympus EPOCH 650, User Manual, Page: 315 / 362

DMTA-10055-01EN, Rev. A, February 2015
Specifications 303
13.2 Channel Specifications
Table 17 Pulser specifications
Parameter Value
Pulser Tunable Square Wave
PRF 10 Hz to 2000 Hz in 10 Hz increments
Energy settings 100 V, 200 V, 300 V, or 400 V
Pulse width Adjustable from 20 to 10,000 ns (0.1 MHz) with
PerfectSquare Technology
Damping
50, 100, 200, 400
Ω
Table 18 Receiver specifications
Parameter Value
Gain 0 dB to 110 dB
Maximum input signal 20 V p-p
Receiver input impedance
400
Ω ±
5 %
Receiver bandwidth 0.2 to 26.5 MHz at –3 dB
Digital filter settings 30 digital filter sets standard
Seven EN12668-1:2010 compliant filters (0.2—10 MHz,
2.0—21.5 MHz, 8.0—26.5 MHz, 0.5—4 MHz, 0.2—
1.2 MHz, 1.5—8.5 MHz, 5—15 MHz)
Rectification Fullwave, positive halfwave, negative halfwave, RF
System linearity Horizontal: ±0.2 % FSW
Vertical Linearity 0.25 % FSH, amplifier accuracy ±1 dB
Reject 0 % to 80 % FSH with visual warning
Amplitude Measurement 0 % to 110 % full screen height with 0.25 % resolution
Measurement Rate Equivalent to PRF in all modes
Table 19 Calibration specifications
Parameter Value
Automated calibration Velocity, zero offset
Straight beam (first backwall or echo-to-echo)
Angle beam (sound path or depth)
Test Modes Pulse echo, dual, or through transmission
Units Millimeters, inches, or microseconds