ComSonics Inc. 2007VMD 用户手册
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5
Disable the PASS / FAIL Function
The HHD PASS / FAIL function can be disabled by setting the threshold value to
80 dB. In this mode, neither the PASS nor the FAIL indicator appears.
Enable the PASS / FAIL Function
To enable the HHD PASS / FAIL function, set the threshold value to a setting
other than 80 dB.
Test Signal Verification
The combined PASSFAIL label is displayed along with the integrity reading if the
HHD is unable to clearly receive the VMD test signal. The HHD performs a pretest
signal level measurement prior to triggering the VMD and then compares that
level with the measurement made during the VMD transmit interval. If the VMD
signal level is no greater than the pretest level, then the combined PASSFAIL
label is shown. The test signal verification function is not affected by disabling the
Threshold function.
The HHD PASS / FAIL function can be disabled by setting the threshold value to
80 dB. In this mode, neither the PASS nor the FAIL indicator appears.
Enable the PASS / FAIL Function
To enable the HHD PASS / FAIL function, set the threshold value to a setting
other than 80 dB.
Test Signal Verification
The combined PASSFAIL label is displayed along with the integrity reading if the
HHD is unable to clearly receive the VMD test signal. The HHD performs a pretest
signal level measurement prior to triggering the VMD and then compares that
level with the measurement made during the VMD transmit interval. If the VMD
signal level is no greater than the pretest level, then the combined PASSFAIL
label is shown. The test signal verification function is not affected by disabling the
Threshold function.