User manual

1 Calibration Procedures
Performance Verification Tests
12 U1271A/U1272A Service Guide
LPF While the rotary switch is
in the position, press the
key once.
3 V 3 V, 20 Hz N/A ±0.0325 V
3 V, 45 Hz ±0.0230 V ±0.0200 V
3 V, 65 Hz ±0.0230 V ±0.0200 V
2.7 V, 430 Hz ±0.1375 V ±0.1375 V
2
Frequency While the rotary
switch is in the position,
press the key once.
9.999 kHz 1.0000 kHz, 0.096 V ±0.005 kHz ±0.005 kHz
3
Duty cycle While the rotary
switch is in the position,
press the key twice.
99.99% 50%, 100 Hz,
3 Vpp square wave
±0.3% ±0.3%
4
ACmV Turn the rotary switch
to the position.
30 mV 30 mV, 20 Hz N/A ±0.235 mV
30 mV, 45 Hz N/A ±0.200 mV
30 mV, 65 Hz N/A ±0.200 mV
30 mV, 1 kHz N/A ±0.235 mV
30 mV, 5 kHz N/A ±0.325 mV
30 mV, 20 kHz N/A ±0.340 mV
30 mV, 100 kHz N/A ±1.090 mV
300 mV 300 mV, 20 Hz N/A ±2.35 mV
300 mV, 45 Hz ±2.30 mV ±2.00 mV
300 mV, 65 Hz ±2.30 mV ±2.00 mV
300 mV, 1 kHz ±3.25 mV ±2.35 mV
300 mV, 5 kHz ±6.25 mV ±3.25 mV
300 mV, 20 kHz ±6.40 mV ±3.40 mV
300 mV, 100 kHz N/A ±10.90 mV
Table 1 - 2 Functional Test
Step Test function Range 5520 output
Error from nominal 1 year
U1271A U1272A
S
h
i
f
t
V
i
e
w
E
s
c
H
z
%
m
s
L
o
g
H
z
%
m
s
L
o
g