This user’s guide has been designed so that a person with a good knowledge of the basics of
ultrasonic non-destructive testing may understand the operation and use of the features
offered by the Sitescan 150. The user is advised, however, of the important nature of
ultrasonic non-destructive testing and is referred to Section 2 for important information on
the proper use of this technology
Features of the Sitescan 150
The Sitescan 150 is a user-friendly ultrasonic digital flaw detector and thickness gauge,
which is simple to use and provides the experienced ultrasonic operator with a full-function
device that incorporates many productivity enhancing features. All of the features of the
Sitescan 150 are accessed through a menu system using the front panel keypad.
Functional Testing Methods
The Sitescan 150 supports the following ultrasonic testing methods:
Pulse-Echo Flaw Detection
Transmit-Receive Flaw Detection
Time of flight measurement
Contact or Immersion Methods
Angle Beam (Shear Wave) Testing
Angle Beam (Surface Wave) Testing
Crack Diffraction Methods
Depth of Flaw Measurement
Single Transducer Thickness Measurement
Dual Transducer Thickness Measurement
Indirect Measurement of Sound Velocity in Materials
Time measurement in microseconds
Phase change display in un-rectified mode
Through transmission testing
Creep wave testing
Pitch and catch techniques
Test Range 0 – 5mm (0.2in) up to 0 – 10,000 mm (400 in.) at steel velocity.
Variable in 1mm &10mm steps
Velocity 1,000 to 9,999m/s continuously variable.
Probe Zero 0 to 999.999 μs, continuously variable.
Delay Calibrated delay from 0 -10,000mm in 0.05 mm steps at steel velocity
(0-400in. in 0.002 in. steps).
Gain 0 to 110dB. Adjustable in 0.5, 1, 2, 6, 10, 14 and 20dB steps. Direct
access to gain control at all times.
Test Modes Pulse echo and transmit/receive.
Pulser -200V square wave pulser. Pulse width 100ns. Rise/fall times <10ns
into 50 ohms
P.R.F Selectable 35 to 100 Hz in 5 Hz steps, 100 to 1,000 in 50Hz steps.
Update Rate 60Hz (NTSC Mode); 50Hz (PAL Mode).
Rectification Full wave, positive or negative halfwave and unrectified rf.
Frequency Range Broad band at 1MHz to 10MHz
System Linearity Vertical = 1% Full Screen Height (FSH). Amplifier Accuracy ±
0.1dB. Horizontal ±0.4% Full Screen Width (FSW).
Reject 50% linear reject. LED warning light when selected.
Units Metric (mm), inch (in) or time (μs).
Display area 111.4 x 83.5 mm (4.39 x 3.29 in) 320 x 240 pixels. AScan Area 255 x 200 pixels (315 x 200 expanded), 8 colour options
and variable brightness.
Gate Monitor Two fully independent gates for echo monitoring and thickness
measurement. Start and width adjustable over full range of unit,
amplitude variable from 0 to 100% FSH. Bar presentation. Positive or
negative triggering for each gate with audible and visual alarms.
Gate Expansion Expands range to width of Gate 1.
Selectable 0.6 seconds delay on gate 2 negative monitor tracking.