GE Ultrasonic USM Go, Operator'S Manual

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Appendix C. EN 12668 Specifications
154 USM Go Operator’s Manual
Paragraph Parameter LSL Typ. USL Units Test Conditions
9.4.2 Pulse Reverberation 0 4 nSec Damping =50, Voltage = High, Energy = High, RepRate =2000
0 4 nSec Damping =1000, Voltage = High, Energy = High, RepRate =15
0 4 nSec Damping =1000, Voltage = High, Energy = High, RepRate =2000
8.4.2 Crosstalk Pulser to Receiver 80 80 - dB
8.4.3 Dead Time After Transmitter Pulse 10 uSec Measured in worst case frequency setting
8.4.4 Dynamic Range 100 100 - dB Measured in worst case frequency setting
8.4.5 Receiver Input Impedance 950 Ohm Real Impedance at 4MHz
0 0.1 (R
max gain
- R
min gain
)/R
max gain
40 Ohm Imaginary Impedance at 4MHz
1.03 nF Input Capacitance
0 0.15 (C
max gain
- C
min gain
)/C
max gain
8.4.6 Distance Amplitude Correction -1.5 0 1.5 dB Maximum error between TCG curve and actual TCG correction
Table 2: EN 12668-1:2000 Specifications (cont.)