Section 4: Using the Model 9500B — DC/Square Function 4.5-9
Final Width = 215mm
Descriptions assume 9500B/1100
4.5.8.3 UUT Scope: Amplitude
Calibration using the 9500B
as a Fixed Source of DC
Voltage
The following procedure assumes that the
9500B instrument is in Manual Mode. It is also
assumed that the user will be familiar with the
methods of editing screen values. In the case
of difficulty, re-read earlier paragraphs.
9500B and UUT Oscilloscope Setup
1. Preparation
Ensure that both instruments are powered ON
and warmed up.
2. UUT 'Scope
Select the required function for amplitude
calibration.
3. 9500B
Ensure that the 9500B is in DC Function with
Output OFF. If in any other function, press the
soft key at the top right of the screen,
then press the
WAVEFORM screen key. Select
or as required.
Sequence of Operations
Refer to the table or list of UUT Oscilloscope
amplitude calibration points in the UUT
Oscilloscope Manufacturer's Calibration
Guide.
Follow the sequence of calibration stages as
directed by the guide, and carry out the
following operations (1) to (8) at each stage.
4.5.8.1 Introduction
Two types of procedures for amplitude
calibration are given:
a. Using the 9500B as a fixed source, where
the oscilloscope can be adjusted;
b. Using the 9500B as an adjustable source,
reading oscilloscope deviations via the
9500B screen.
4.5.8.2 Interconnections
a. Use the appropriate active head to connect
from the required 9500B channel output to
the input of the UUT Signal Channel to be
calibrated.
b. If a trigger is required, use the appropriate
active head (or trigger cable) to connect
from the required 9500B channel output to
the input of the UUT Trigger for the
Channel to be calibrated.
4.5.8 Using the 9500B DC Function to Calibrate the Amplitude
Response of a UUT Oscilloscope
continued overleaf
→
Whenever the DC waveform is selected within
the DC/Square function an extra Soft Key is
available in the CHANNEL SELECT sub
menu.
Please note that Multi Channel DC Output
may only be configured to drive a UUT input
impedance of 1MΩ
This key toggles Multi Channel capability ON
and OFF. Whilst OFF, the operation of Channel
Selection is unchanged and is as previously
described. Refer para 4.5.3.1.. Whilst ON
(highlighted) each of the above Softkeys may
be toggled ON or OFF, to select Output from
any or all channels.
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