Epson USN 52R Operating Manual page 151

Specifications
Range
Material velocity
Pulse shift
Delay for digital
time-of-flight measurement Approx. up to 999 ms (range dependent)
Gain
Pulse repetition rate
Test modes
Pulser
Damping
9-2
From 5 to 5000 mm for steel
Continuously adjustable from 1000 to 9999 m/s, 2 programmable fixed values
From -20 to +784 µs, depending on range setting
From 0 to 110 dB variable in steps of 0.5 dB;
fixed steps selectable between 0.1 / 0.5 / 1.0 / 2.0 / 6.0;
variable step from 6.5 to 24 dB programmable in 0.1 dB steps
Setting REP-RATE Range (with 5920 m/s)
HIGH 905 Hz
452 Hz
226 Hz
113 Hz
LOW 452 Hz
226 Hz
113 Hz
56 Hz
Pulse-echo and Transmit/Receive (Dual)
Spike/excitation pulse
50 ohms, 75 ohms, 150 ohms and 1000 ohms
Issue 05, 02/00
, continuously variable or variable in fixed steps
long
5 mm to 295 mm
296 mm to 589 mm
590 mm to 1178 mm
1179 mm to 5867 mm
5 mm to 295 mm
296 mm to 589 mm
590 mm to 1178 mm
1179 mm to 5867 mm
Krautkramer USN 52R/USN 52L