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Section V
Model
42604
Table 5-2
Table 5-2,
Performance
Checks (cont'd)
h. Remove resistor from UNKNOWN
terminals.
With a short,
heavy piece of wire,
short UNKNOWN
terminals.
Set RANGE
switch full ссу,
Measure
residual resistance by adjusting
CRL control for null
indication on Voltmeter.
Residual resistance should be less than 1 digit.
standard Resistors
Model 4260А Readings
Resistor,
10
МО
з 0.5%,
1/4W,
metal film
09, 79
10.21 M Š
Resistor,
1 M $2 =0,5%, 1/4W,
metal film
0989
1011 K &?
Resistor,
100K 2 +0, 5% £, 1/4W,
metal film
098, 9
101.1K 2
Resistor,
10K 2 +0.5%,
1/4W,
metal film or WW
09, 88
10.11 K 2
Resistor,
7. SK Q 20. 5/5, 1/4W,
metal film or WW
07.42
07.58 K О
Resistor,
5K 2 20,5%,
1/4W,
metal film or WW
04, 94
05,06 K 2
Resistor,
2K Я + 0.5%,
1/4W,
metal film or WW
01. 97
02,03 K 2
Resistor,
1К Я 20,57,
1/4W,
metal film or WW
0988
1011 2
Resistor, 100 2 20,55, 1/4W, WW
098.0 - 101.10
Resistor,
10 R, 20,57,
1/4W, WW
09, 78
10, 21 2
Resistor,
1%, #0,5%,
1/4W, WW
00, 97
01.03 2
1. To measure the maximum ас voltage at the UNKNOWN
terminals for
R measurements,
connect only
a Volimeter to these terminals.
j, Set FUNCTION to R, RANGE
full cew,
and rotate CRL to 1030,
k. Voltmeter should indicate between 30 and 40 Vdc for 115 or 230 volts ac power,
4,
INTERNAL
OSCILLATOR:
Frequency:
1 kHz + 2%:
Voltage:
100 mV rms + 20%
a.
Connect equipment
as shown in Figure
5-2,
Set FUNCTION
switch to Ls LOW Q position.
‚ Rotate CRL control to 1030,
. Rotate DQ control full cew.
Read frequency displayed on counter and voltage indicated on voltmeter,
Counter should display
between 980 Hz and 1020 Hz and meter should indicate between 80 and 120
millivolts rms,
HP4036
VOLTMETER
ж
REAR PANEL
НР4250А
FRONT PANEL
HP
52451 /5261А
COUNTER
*
ж
DO NOT
GROUND
TO POWER
LINE GROUND
же
USE
SHIELDED
CABLE
AND
CONNECT
BIAS
BAT + TO UNKNOWN
CABLE
SHIELD
Figure 5-2,
Internal Oscillator Check
5-4
02337-2
O428Q-A-7
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