Tektronix 2465A Operator's Manual page 105

Controls, Connectors, and Indicators
dBm
®
CONT
®
HI O/LO 0
HIO
LO 0
Displays ac rms voltage measurements as the log of
the ratio of the input voltage to a 1 mW reference at
6000. Readings equal 20Xlog(VinputlVret)' where
Vinput is the input voltage and V ret is 0.7746 V. With
zero input, the readout displays ·OVER."
Selects or deselects continuity. If the resistance between
the probes is less than 10 n, the instrument produces an
audible tone. The readout shows either 'SHORT
<
10 !2" or 'OPEN
>
10 0." The tone responds to
continuity within about 100 ms.
Continuity operation is not affected by AUTO, UP,
DOWN, HOLD, SMOOTH, MIN/MAX DISPLAY,
MIN/MAX RESET, REF DISPLAY, or REF SET.
Selects or deselects resistance measurement.
Measures resistance within 2 k, 20 k, 200 k, 2 M,
and 20 M n ranges. At full scale, 2 V appears across
the test leads, which will bias a silicon semiconductor
junction to forward conduction.
Measures resistance within 200, 2 k, 20 k, 200 k,
and 2 M
n
ranges. At full scale, 0.2 V appears
across the test leads, which will not bias a silicon
semiconductor junction to forward conduction.
"" GPIH
STA'u~
__ 0' "0,,,,, 0·"','
~-I--I~--;--;-t~~1
6014·09
Figure 5-8. DMM controls and connectors.
5-28
2465A/2455A/2445A Operators