Ectron 441A, Инструкция по эксплуатации, Страница: 51 / 74

Section VI
Alignment and Calibration
This section details the alignment and testing required to verify the proper performance of
the Model 441A. The basic alignment and calibration procedure is presented first, followed
by optional additional tests that the user may choose to perform. A blank calibration test
report is also included at the end of the section. Before proceeding, the operator should
become familiar with the operation of the Model 441A.
EQUIPMENT REQUIRED
Basic Alignment and Calibration
DMM
Agilent Model 34401A or equivalent. An equivalent
must have at least 0.01% accuracy in the range of 0 V
dc to 10 V dc.
Oscilloscope
Tektronix Model 7603 (with Model 7A13 vertical and
Model 7B53A horizontal plug-in’s) or equivalent.
Function generator
Wavetek Model 188 or equivalent.
Frequency meter
(if necessary)
Needed if not already present in the DMM being used,
and if the function generator does not provide a precise
reading of the frequency.
Power supply
Any (10.5 V dc to 32 V dc with at least a 200 mA
output).
Mating connector
Fifteen-pin (female) Type D subminiature such as a
DA-15S or a DAM-15S.
Switch
One single-pole single-throw toggle switch. The test
technician can forego the use of this switch, but it does
make the tests easier to perform.
Additional Tests (Optional)
Switch
One double-pole double-throw toggle switch. The test
technician can forego the use of this switch, but it does
make the tests easier to perform.
PRE-CALIBRATION
Setup
Connect the Model 441A as shown in Figure 6-1. Set
the power supply to any voltage from 10.5 V dc to
32 V dc and set S1 to On.
When the Model 441A is turned on, the
OPERATE
screen will normally appear. If
ALIGN REQ’D
appears
instead, adjust either of the front-panel controls to go
to the
OPERATE
screen.
6-1