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TM 11-6625-1614-15
Section V
Paragraphs 5-12 to 5-15
Table 5-2
Model 410C
Range Settings
.015V
. 0 5 V
. 1 5 V
. 5 V
1 . 5 V
5 V
15 V
50 V
150V
500 V
1500
b. Adjust Voltmeter Calibrator to provide a
+.015 v dc voltage.
c. Model 410C should read between 0. 0147 and
0.0153 v.
d. Readjust Model 410C and Voltmeter Cali-
brator (,) settings listed in Table 5-2. Note
Model 410C meter readings. If Model 410C fails
to meet pecifications, refer to Paragraph, 5-30
and 5−32 for proper adjustment procedure.
5-12
INPUT RESISTANCE CHECK (DCV).
a. Connect an external resistor, Rx, of lO M
ohms ±1% ( Part No. 0370-0168) in series
between the voltmeter calibrator and the DCV
cable of the Model 410C.
b. Set Model 410C FUNCTION selector to +DCV;
RANGE to .015 V.
c. Adjust voltmeter calibrator for +.015v DC
output.
d. Model 410C should read .0075 v, verifying
R
of 10 M ohms.
in
e. Table 5-3 provides settings required to
verify Model 410C R
5-13.
C h a n g e
1
5-2
Table 5-2. DCV Accuracy Test
Voltmeter Calibrator
Model 738B
Settings
Range
1. 5-5
1. 5-5
1. 5-5
1. 5-5
1. 5-5
1. 5-5
1. 5-5
1. 5-5
1.5-5
1-3
1-3
on RANGES specified.
in
Model 410C
Meter Readings
Voltage
.015
.01.47 to .0153 V
.05
.049 to .051 V
.15
.147 to .153 V
. 5
.49 to .51 V
1.5
1.47 to l.53 V
5
4.9 to 5.l V
15
14.7 to 15.3 V
50
49 to 51 V
150
147 to 153 V
300
290 to 310 V
300
270 to 330 V
5-14. ACCURACY CHECK (DCA).
a. Figure 5-2 describes the test arrangement
required for this operation.
additional equipment will also be required:
DC Power Supply
Model 723A)
DC Voltmeter
Model 3440A/3442A)
10 K, 1%, 1 w resistor
56 K, 1%, 1 w resistor
10 , 1%, 1 w resistor
56
, 1%, 1/2 w resistor
b. Connect the Model 410C as shown in Figure
5-2; FUNCTION SELECTOR to +DCA; RANGE
to 150 MA.
c. Use 56 ohm resistor for R1 and 10 ohm
resistor for R2.
d. Adjust dc power supply to obtain 1.4v reading
on system voltmeter.
e. Model 410C should read between 135.5 and
144.5 ma.
f. Adjust dc power supply for System voltmeter
readings listed in Table 5-4. Note Model 410C
meter readings.
5-15. INPUT RESISTANCE CHECK (DCA).
a.
Figure 5-2 describes the test arrangement
required for this operation.
R2 with a 10 ohm ±1% resistor
0727-0335).
b. Set Model 410C FUNCTION SELECTOR to
+DCA: RANGE to 150 MA.
Model 410C
The
following
Part No. 0727-0157)
Part No. 0730-0053)
Part No. 0727-0335)
Part No. 0811-0341)
Replace R1 and
Part No.
01556-2
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