Extech Instruments
20 TKG250- EN V2.4 11/13
4 Adjusting parameters in A-Scan mode:
In addition to changing parameters via the Menu OK key, you can also adjust the
following parameters while in A-Scan:
Units (in, mm, usec)
Alarm (high, low, high-low, high vib, low vib, high-low vib, off)
Gain (AGC or manual in 1 db from 20 dB as min and 94 dB as Max)
Rectify (RF, Full Wave, Half + or Half -)
Range (.5,1,2,5,10 and 20 inch or 12.7, 25.5,50,127, 254, 508mm)
Blanking (MB for Main bang and IF for interface echo)
Echo-to-Echo (on or off)
To change a parameter use either the right or left arrow until the parameter to be adjusted
is highlighted. Use the up or down arrow to adjust the parameter. You can also view the
functions for each parameter by pressing the Menu OK key. When finished adjusting the
parameter press the F1 done key (set up for left hand user), F3 for right hand user. For
gain control, F2=AGC or Automatic Gain Conrol. When in AGC, the gauge will use its
sophisticated algorithms to automatically set the gain to the desired height. If echoes are
not being detected but are somewhat visible, try increasing or decreasing the gain as
described above.
Here are screen shots highlighting the various parameters that can be adjusted:
Alarm Highlighted Units Highlighted
