Tektronix 466

VOLTS
The maximum safe input voltage is ±1200 V (de+
peak ac) between the+ and COM inputs or between
the
+ input and chassis.
The
maximum COM floating voltage is ±500 V (de+
peak ac) to chassis.
The
meter may be damaged by attempting to
measure voltage
if the meter is in the resistance
mode of operation and the applied voltage is in
excess
of 120 V rms.
If the reading exceeds 1200 V or the readout blinks
(indicating overrange) disconnect the+ lead at once
to
prevent possible meter damage.
1. Push in the VOL TS FUNCTION button and the
1.2 kV RANGE button. See Fig.
11.
2. Connect the COMMON lead to the reference point
{usually a
ground or test point) and the HIGH lead to the
unknown voltage to be measured and observe the reading.
3. Reduce the range, using Table 3, until a proper
readout is obtained.
NOTE
When no voltage is applied in the 20 V to 1.2 kV
ranges, the readout is 0000 and individual readout
elements
may blink. Also, noise picked up by the
meter leads may increase the readout in the .2 V and
2 V ranges.
A
blinking readout on any range indicates an
overrange
condition and a need to select a higher
range.
TABLE 3
Volts Ranges
RANGE
READOUT
MEASUREMENT
1.2 kV
1.200-0.200
1.2 kV-200 V
200 v
200.0-020.0
200 V-20 V
20 v
20.000-02.00
20 V-2 V
2V
2.000-0.200
2 v-.2 v
200 mV
0.200-0.000
.2 V-0 V
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466/464 DM44 Operators
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