Tektronix 475A - Volts

VOLTS
PN >
(
CAUTION ¢
The maximum safe input voltage is +1200 V (dc +
peak ac) between the + and COM inputs or between
the + input and chassis.
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 inthe .2 Vand
The maximum COM floating voltage is +500 V (dc + 2 V ranges.
peak
ac)
to
chassis.
A
blinking
readout
on
any
range
indicates
an.
The meter may be damaged by attempting to overrange condition and a need to select a higher
measure voltage if the meter is in the resistance range.
mode of operation and the applied voltage is in
excéss of 120 V rms.
if the reading exceeds 1200 V or the readout blinks
(indicating overrange) disconnect the + lead atonce
to prevent possible meter damage. TABLE 3
Volts nae
RANGE READOUT MEASUREMENT
på By the ad en button and the ~ WAR SET 200— 0.200 _ 1.2 kV— —200 V pa
SMYKA pe an 200V | 2000-0200 | 200V—250V —
2. Connect the COMMON lead to the reference point u Den A
(usually a ground or test point) and the HIGH lead to the 2 V 1. 2.000—0.200 — VEV
200 mV 0.200—0.000 2 V—0 V
unknown voltage to be measured and observe the reading. a čna A sE
22 475A/DM44 Operators @