d. Interconnect the equipment as illustrated in Figure 3-4, coupling the
voltage source under measurement to the AC INPUT 32-1000V connector.
Set input
voltage and RANGE VOLTS switch into range.
e. Note that the OVERLOAD PROTECTION PUSH TO RESET indicator is illuminated.
If it is, momentarily depress the OVERLOAD PROTECTION PUSH TO RESET pushbutton
switch. The indicator should extinguish.
f. After approximately 15 seconds, the meter pointer will deflect to an
indication of 0 on the BAL scale. At this time the AC indicator will extinguish
and the DC indicator will illuminate.
A DC output voltage equivalent to the RMS
value of the signal under measurement can be obtained from the indication of the DC
digital voltmeter or other readout instruments connected between the +DC OUTPUT and
-DC OUTPUT binding posts.
Note that a less accurate reading can be obtained by
noting the meter DC OUTPUT VOLTAGE scale indication and multiplying this value by
the factor indicated in the TIMES METER READING dial.
4. To operate the ATS in the manual transfer mode, proceed as directed in the
following steps:
a. Couple the ATS to line power and momentarily depress the POWER PUSH
pushbutton switch; the indicator section of the switch should illuminate.
Allow
the ATS to warmup for at least 20 minutes.
b. Set the RANGE VOLTS switch to 500 to 1000.
c. Set the mode switch to MANUAL TRANSFER and note which indicator (AC or DC)
is illuminated.
If the DC indicator is illuminated, momentarily depress the
TRANSFER RESET pushbutton switch; the DC indicator will extinguish and the AC
indicator will illuminate. Push the STANDBY pushbutton and note that the overload
lamp is illuminated.
d. Interconnect the equipment as illustrated in Figure 3-4, coupling the
voltage source under measurement to the AC INPUT 32-1000V connector. Set the input
voltage and RANGE VOLTS switch into range.
e. Note that the OVERLOAD PROTECTION PUSH TO RESET indicator is illuminated.
If it is, momentarily depress the OVERLOAD PROTECTION PUSH TO RESET pushbutton
switch; the indicator section of the switch should extinguish.
f. After approximately 15 seconds, the meter pointer will deflect to an
indication of 0 on the BAL scale. When the pointer comes to rest within one-half
division of 0, momentarily depress the TRANSFER RESET pushbutton switch. At this
time, the AC indicator will extinguish and the DC indicator will illuminate. A DC
output voltage equivalent to the RMS value of the signal under measurement is
available at the DC OUTPUT binding posts and can be read by means of the DC digital
voltmeter or potentiometer.
Note that an approximate reading may be obtained by
noting the meter DC OUTPUT scale indication and multiplying this value by the
factor indicated in the TIMES METER READING dial; this feature permits presetting
of differential voltmeter or potentiometer controls.
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