General; Introduction; Calibration Number And Date; General Instructions - Fluke ScopeMeter 123 Service Manual

5.1 General

5.1.1 Introduction

The following information, provides the complete Calibration Adjustment procedure for
the Fluke 123 test tool. The test tool allows closed-case calibration using known
reference sources. It measures the reference signals, calculates the correction factors,
and stores the correction factors in RAM. After completing the calibration, the
correction factors can be stored in FlashROM.
The test tool should be calibrated after repair, or if it fails the performance test. The test
tool has a normal calibration cycle of one year.

5.1.2 Calibration number and date

When storing valid calibration data in FlashROM after performing the calibration
adjustment procedure, the calibration date is set to the actual test tool date, and
calibration number is raised by one. To display the calibration date and - number:
1. Press
2. Press
3. Press

5.1.3 General Instructions

Follow these general instructions for all calibration steps:
•
Allow the 5500A to satisfy its specified warm-up period. For each calibration point ,
wait for the 5500A to settle.
•
The required warm up period for the test tool is included in the WarmingUp &
PreCal calibration step.
•
Ensure that the test tool battery is charged sufficiently.
to open the USER OPTIONS menu.
to show the VERSION&CALIBRATION screen (see Figure 5.1).
to return to normal mode.
Figure 5-1. Version & Calibration Screen
Calibration Adjustment

5.1 General

VERSION.BMP
5
5-3