Fluke 93 User Manual

CALIBRATION ADJUSTMENT PROCEDURE
5-1
5
CALIBRATION ADJUSTMENT PROCEDURE
5.1 GENERAL INFORMATION
The following information provides the complete Calibration Adjustment Procedure for the
ScopeMeter. Because various control functions are interdependent, a certain
order of adjustment is
necessary. The procedure is
therefore
presented in a sequence
that
is best
suited
to
this order.
Before
you
make calibration adjustments, always
use the
Performance Verification Procedure in
chapter
4 to
check the ScopeMeter performance.
The Calibration Adjustment Procedure, described here, consists of the following three parts:
•
CONTRAST
Calibration Adjustment
Procedure
•
SCOPE
Calibration Adjustment Procedure
•
METER
Calibration
Adjustment Procedure
Almost all Calibration Adjustments can
be
done without opening toe instrument. Only the first four
steps of the SCOPE Calibration Adjustment Procedure require disassembling of the ScopeMeter
(see section 5.6.1).
NOTE: Every year use the Performance Verification Procedure in chapter 4 to check the
ScopeMeter. tfthe ScopeMeter fails the Periormarrce Verification Procedure, Caf/Prafton
Adjustments
must be made, if the
ScopeMeter also fails the Calibration Adjustment
Procedure,
repair is necessary (see
chapter
7).
(After repair,
it
is sometimes also necessary
to do also
a
Hardware Calibration Adjustment,
see
section
5.6.1)
Sections 5.5, 5.6 and 5.7 describe the calibration process in detail. Section 5.8 contains a summary
of all calibration adjustments as a reference for more frequent users.
5.2 RECOMMENDED CALIBRATION ADJUSTMENT EQUIPMENT
The equipment recommended for the Calibration Adjustment Procedure is listed in table 5.1.
All calibration adjustments must be done in ambient temperatures between 18C and 28C. The
ScopeMeter can be used immediately: there is no warm-up time specified.
Table 5. 1 Recommended calibration adjustment equipment survey
Instrument Type Recommended Model
Multifunction Calibrator Fluke 51 OOB
Square Wave Calibration Generator Tektronix PG 506
Function Generator Philips PM 5134
*)
Personal Computer Any IBM compatible PC, running MS-DOS
*) Optical to
RS-232 Interface Cable PM9080/001
*) Flash ROM Refresh software
Contact your Service Center
*) +12V
(±
2.5%) Programming voltage
)
These items are required after three calibrations,
see
note paragraph
5.3, pag
5.3 for details.

Fluke 93 Specifications

General

Brand	Fluke
Model	93
Category	Measuring Instruments
Language	English