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Error
The "Error" message appears in the lower right corner of the LCD display
screen under the following circumstances:
▪ Calibration results in an invalid NVP value outside of the 20 to 99.9
NVP value range.
▪ SSTDR reflection was not detected due to a properly terminated cable
or excess signal loss.
Note: Refer to the Using Calibration Mode and Using Test Mode
sections for trouble-shooting the "Error" message when using
either of these modes.
Keypad
The Snap Shot™ is equipped with seven buttons, illustrated in Figure 3.
Four buttons, appearing in the top two rows of the keypad, are used with
Test and Tone Modes. Two Up/Down buttons are used to edit. One button
is used to power the unit On/Off. The button functions are explained in
Table 8.
Toggle Units
Memory
Up/Down
Figure 3. Keypad
13
Calibration
Test
Tone
Power/Backlight
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