Fluke 43B Service Manual

Calibration Adjustment
5.3 Starting Calibration Adjustment
5
5-5
The Calibration Adjustment Procedure uses built-in calibration setups, that can be
accessed in the Maintenance mode.
To enter the Maintenance mode proceed as follows:
• Press and hold
.
• Press and release .
• Release
.
• The display shows the Calibration Adjustment Screen.
The display shows the first calibration step
Warming Up (CL 0200) , and the
calibration status
:IDLE (valid) or :IDLE (invalid).
4. Continue with either a. or b. below:
a. To calibrate the display contrast adjustment range and the default contrast, go to
Section 5.4 Contrast Calibration Adjustment.
This calibration step is only required if the display cannot made dark or light
enough, or if the display after a test tool reset is too light or too dark
b. To calibrate the test tool without calibrating the contrast, go to Section 5.5
Warming Up & Pre-calibration
Explanation of screen messages and key functions.
When the test tool is in the Maintenance Mode, only the F1, F2, F3, and ENTER soft
keys, the ON/OFF key, and the backlight key can be operated, unless otherwise stated.
The calibration adjustment screen shows the actual calibration step (name and number)
and its status :
Cal Name (CL nnnn) :Status Calibration step nnnn
Status can be:
IDLE (valid) After (re)entering this step, the calibration process is not started.
The calibration data of this step are valid. This means that the
last time this step was done, the calibration process was
successful. It does not necessarily mean that the unit meets the
specifications related to this step!
IDLE (invalid) After (re)entering this step, the calibration process is not started.
The calibration data are invalid. This means that the unit will not
meet the specifications if the calibration data are saved.
BUSY aaa% bbb% Calibration adjustment step in progress; progress % for Input 1
and Input 2.
READY Calibration adjustment step finished.
Error :xxxx Calibration adjustment failed, due to wrong input signal(s) or
because the test tool is defective. The error codes xxxx are
shown for production purposes only.

Fluke 43B Specifications

General

Category	Power Quality Analyzer
Interface	RS-232
Volts AC/DC	Yes
Ohms	Yes
Continuity	Yes
Diode Test	Yes
Capacitance	Yes
Harmonics Measurement	Up to 51st harmonic
Display	LCD
Battery Life	Approximately 6 hours
Weight	1.1 kg (2.4 lb)
Data Storage	Yes
Amps AC/DC	0.1 to 1000 A (with clamp)
Power Measurement	W, VA, VAR, PF
Dimensions	50 mm
Current Measurement Range	Via current clamp accessories (not built-in)