Fluke ScopeMeter 123, Service Manual, Page: 33 / 96

Performance Verification
3.1 Introduction
3
3-3
3.1 Introduction
Warning
Procedures in this chapter should be performed by qualified
service personnel only. To avoid electrical shock, do not perform
any servicing unless you are qualified to do so.
The test tool should be calibrated and in operating condition when you receive it.
The following performance tests are provided to ensure that the test tool is in a proper
operating condition. If the test tool fails any of the performance tests, calibration adjustment
(see Chapter 4) and/or repair (see Chapter 7) is necessary.
The Performance Verification Procedure is based on the specifications, listed in Chapter 2 of
this Service Manual. The values given here are valid for ambient temperatures between 18 °C
and 28 °C.
The Performance Verification Procedure is a quick way to check most of the test tool’s
specifications. Because of the highly integrated design of the test tool, it is not always
necessary to check all features separately. For example: the duty cycle, pulse width, and
frequency measurement are based on the same measurement principles; so only one of these
functions needs to be verified.
3.2 Equipment Required For Verification
The primary source instrument used in the verification procedures is the Fluke 5500A. If a
5500A is not available, you can substitute another calibrator as long as it meets the minimum
test requirements.
•
Fluke 5500A Multi Product Calibrator, including 5500A-SC Oscilloscope Calibration
Option.
•
Stackable Test Leads (4x), supplied with the 5500A.
•
50
Ω
Coax Cables (2x), Fluke PM9091 (1.5m) or PM9092 (0.5m).
•
50
Ω
feed through terminations (2x), Fluke PM9585.
•
Fluke BB120 Shielded Banana to Female BNC adapters (2x), supplied with the
Fluke 123.
•
Dual Banana Plug to Female BNC Adapter (1x), Fluke PM9081/001.
•
Dual Banana Jack to Male BNC Adapter (1x), Fluke PM9082/001.
•
TV Signal Generator, Philips PM5418.
•
75
Ω
Coax cable (1x), Fluke PM9075.
•
75
Ω
Feed through termination (1x), ITT-Pomona model 4119-75.
•
PM9093/001 Male BNC to Dual Female BNC Adapter
Note: if you have a Fluke 5500A with 600 MHz Oscilloscope Option, you do not require a
separate TV Signal Generator, a 75
Ω
Coax cable, a 75
Ω
Feed through termination, and a
Fluke PM9082/001 Adapter. Fluke 5500A with 600 MHz option can generate video signals.