Calibration Adjustment; Calibration Number And Date; General Instructions - Fluke ScopeMeter 190 III Series Service Manual

190 Series III
Service Manual

Calibration Adjustment

This section provides the complete Calibration Adjustment procedure for the Test Tool.
The Test Tool allows closed-case calibration with known reference sources. It measures the
reference signals, calculates the correction factors, and stores the correction factors in RAM.
When the calibration is complete, the correction factors can be stored in FlashROM.
The Test Tool should be calibrated after repair or if it fails the Performance Verification. The
Test Tool has a normal calibration cycle of one year.

Calibration Number and Date

When storing valid calibration data in FlashROM after the calibration adjustment procedure is
complete, the calibration date is set to the actual Test Tool date, and the calibration number
increments by one.
To show the calibration date and number:
U
1. Press , then press
4
2. Press
The calibration date and calibration number do not change if you do only the Probe
Calibration.

General Instructions

Follow these general instructions for all calibration steps:
Allow the specified warm-up period for the 5502A. For each calibration point, wait for the

5502A to settle.
The required warm-up period for the Test Tool is included in the

Calibration step.
Ensure that the Test Tool battery is sufficiently charged.

Power the Test Tool with the BC190 Power Adapter.

This procedure is for all models. Test steps that are not applicable to the Test Tool to be

adjusted can be skipped. For example, the adjustment of the meter with banana jacks can
be skipped in instruments with four scope (BNC) inputs.
The figures that show how to interconnect Signal Source and Test Tool are for 2 Scope

Inputs + Meter Input and for 4 Scope Inputs.
34
3
to see the version and calibration data.
to close the version and calibration menu.
Note
Warming-Up and Pre-