The gauge will normally operate in automatic gain mode and this will be suitable for virtually every measuring scenario. The automatic gain mode has been designed to find the optimum gain setting during the measurement process and is imperceptible to the operator. It is therefore only recommended to use manual gain mode if you have suitable ultrasonic training and experience and understand the consequences to the measurement if the gain is set incorrectly.
Note: The gauge will default back to Automatic Gain mode when the gauge is turned on or the probe is changed.
Manual Gain Mode
When the gauge is in manual gain mode the operator can manually adjust either the Gain or A-scan Range using the Up and Down keys during measurement.
The Gain value is in dB can be adjusted in 1 dB steps with each ⇧ or ⇩ key press.
Note: Gain can be adjusted to about 40 to 43DB maximum for Undercarriage inspections.
Note: When in manual gain mode the Basic measurement screen is disabled as the A-scan screen should be observed.

