1502C MTDR Service Manual
6–1
Calibration
Introduction
This chapter is divided into the Calibration Performance Check and the Adjustment
Procedure.
The Calibration Performance Check is a series of checks to compare the instrument
parameters to the published specifications. This procedure is similar to the Operator
Performance Check (Chapter 2), but additionally lists actions to take if the
Calibration Performance Check is not met.
The Adjustment Procedure is a series of steps designed to bring the instrument up
to standards after repair or performance check.
Calibration Performance Check
The purpose of this procedure is to assure that the instrument is in good working
condition and should be performed on an instrument that has been serviced or
repaired, as well as at regular intervals.
This procedure is not intended to familiarize you with the instrument. If you are not
experienced with this instrument, you should read the Operation chapter of this
manual before going on with these checks.
If the instrument fails any of these tests, it should be calibrated or otherwise
serviced. Many failure modes affect only some functions of the instrument.
Equipment Tek Part Number
50
W
precision terminator 011–0123–00
3-ft precision coaxial cable 012–1350–00
Disconnect any cables from the front panel CABLE connector. Connect the
instrument to a suitable power source (a fully charged optional battery or AC line
source). If you are using AC power, make sure the fuse and power selector switch
on the rear panel are correct for the voltage you are using (115 VAC requires a
different fuse than 230 VAC).
Option 05 (metric) instruments default to m/div instead of ft/div. You can change
this in the Setup menu, or you may use the metric numbers provided. To change the
readings to ft/div, press the MENU button. Scroll down to Distance/Div is: m/div
Equipment Required
Getting Ready
Metric Instruments
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