Tektronix 11801B Service Manual page 91

Performance Tests
(0) Step 11: Refer to Table 4-3 and check actual results against the table
specifications for the setting levels indicated.
NOTE
Specifications are one percent of full scale at each volts/div setting.
Example: at 5 mV/div full scale for 10 div is 50 m\, which gives an
upper and lower spec tolerance of +0.5 mV and —0.5 mv.
Table 4-3: Voltage Source Settings
Sens. Source V Lower Spec Upper Spec
5 mV/div —20 mV —20.5 mV ~19.5 mV
10 mV/div —40 mV —41.0 mV ~39.0 mV
20 mV/div —80 mV —82 mV -78 mV
50 mV/div —200 mV —205 mV -195 mV
100 mV/div -400 mV ~440 mV —390 mV
200 mV/div 800 mV 820 mV —780 mV
5 mV/div 20 mV 19.5 mV 20.5 mV
10 mV/div 40 mV 39.0 mV 41.0 mV
20 mV/div 80 mV 78 mV 82 mV
50 mV/div 200 mV 195 mV 205 mV
100 mV/div 400 mV 390 mV 410 mv
200 mV/div 800 mV 780 mV 820 mV
Up to now, you have been working with trace 1 (Channel 2), and
internal mainframe acquisition measurement channel 1. Use the
following steps to verify the vertical accuracy through internal
acquisition measurement channel 2, using trace 2. (Don't remove
Voltage Source from Calibration Head Channel 2.)
UTILITY button 2.0... cee eee eee teens
Initialize (in major menu)
Initialize (in verification pop-up Menu)... 6... ee touch
TRIGGER button 2.0... cee eee eens press
Source (in major MENU) ©... cece nee touch
Internal Clock (in pop-up menu)
11801B Service Manual
4-27