DMTA-10040-01EN, Rev. E, February 2018
Control Functions 111
To adjust the horizontal and vertical gain simultaneously, press the MAIN FILTER
menu key ( ), followed by the C key. The gain may then be adjusted with the
knob. The selected value will be applied to both the horizontal and the vertical
gain, and the difference between the horizontal and vertical gains will remain
constant; they will increase or decrease at the same rate.
To adjust the horizontal gain only (without changing the vertical gain), press the
MAIN FILTER menu key ( ), followed by the D key. The knob will then adjust
only the horizontal gain. To adjust only the vertical gain, press the E key. The
knob will then adjust only the vertical gain.
To speed up the gain selection process (while the combined horizontal and vertical
gain, horizontal gain, or vertical gain function is highlighted), press once, which
enables the coarse-knob function. GAIN, H GAIN or V GAIN will be underlined
when this function is enabled. The gain can then be changed in 1.0 dB increments. To
turn off the coarse-knob function, press one more time, which returns to gain
adjustments in 0.1 dB increments.
4.4.2 Frequency (FREQ 2) Menu — MAIN FILTER Key
FREQ 2 (frequency 2)
The FREQ 2 setting determines the frequency 2 drive signal of the eddy current
probe. This is adjustable from 10 Hz (0.01 kHz) to 12 MHz.
To adjust the frequency setting, press the MAIN FILTER menu key ( ) twice,
followed by the A key. With FREQ 2 highlighted, rotate the knob until the desired
frequency is displayed.
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