8060A
Instruction Manual
2-32
1. Turn the 8060A power switch off.
2. Select Volts, AC, 2V range.
3. Turn the power switch on while holding down the continuity button.
When the .8.8.8.8 display appears, the power-on self-test is complete.
4. Release the continuity button. The display should now read -.9990 to
-1.0010. The instrument is now in the ratio self-test mode.
5. Push the dB button. The display should read 2.21 dB to 2.22 dB.
6. Push the REL button. The display should read 0.00 dB REL.
7. Push the continuity button again to cancel the ratio self-test.
The meter will now make all subsequent dB measurements in dBV as long as
the power remains on and the REL button is not used again. All other meter
functions can be used without losing the dBV function.
2-26. Continuity (
)
To select the continuity function, first select the resistance function and then
press the
button under the display. The button functions like
a three-position switch: the first button press enables visible continuity (the
indicator is displayed), the second button press enables audible
continuity (the
indicator is displayed), and the third button press
cancels continuity selection (the
disappears). The selection of
continuity is summarized in Figure 2-20.
When continuity is detected, visible continuity is indicated by the long bar
across the top of the display. Audible continuity (if enabled) is indicated by
the tone emitted from the instrument.
Continuity is a quick check to verify whether circuit connections are intact.
The continuity detection threshold is typically <10% of the resistance range
selected for the fixed ranges (i.e. continuity is detected if resistance is less
than 20Ω in the 200Ω, less than 200Ω in the 2 kΩ range, etc.). The detection
threshold is <20Ω for the autoranging kΩ range, and 20 kΩ for the
autoranging MΩ range.
The 8060A can detect continuity for intervals as brief as 50 µs (typically as
brief as 10 µs). It extends the visible or audible indication to a minimum of
200 ms to make it easy for you to see or hear the results. Note that while
continuity is enabled, the 8060A still makes resistance measurements and
displays the readings.
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