Front Panel Operation
Sample Applications 4
4-51
5. To display or change the current entry limits, press one of the softkeys under
“Current.” The display changes to:
PREV
MENU
6. Press the “Change Upper Limit” or the “Change Lower Limit” softkey, then press the
numeric keys for the desired current limit and
U, m, or K if necessary,
followed by
E.
Note
The upper current limit sets the limit for both dc and ac current.
7. Press P twice.
4-53. Sample Applications
Sample methods for approaching a few selected applications are provided here. Included
are the following:
•
Calibrating a Fluke 70 Series 3½ digit handheld multimeter
•
Calibrating a Fluke 8840A Series 5½ digit multimeter
•
Testing the flatness of a wideband voltmeter
4-54. Calibrating Fluke 70 Series Multimeter
For many users, calibrating a handheld DMM is a major part of the calibrator’s workload.
This example goes through the steps necessary to calibrate a Fluke 70 Series Multimeter.
Note:
These procedures are included here as an example. The
70 Series Service
Manual
contains the authoritative testing and calibration procedures for 70
Series meters.
Two procedures are described here. The first tests each function and range for
compliance to specifications. The second is the calibration procedure for the 70 Series
meters. The
70 Series Service Manual gives instructions for disassembly and access to
the pca (printed circuit assembly). You will need to access the pca for the calibration
procedure.
Before connecting the calibrator to the 70 Series Multimeter (hereafter referred to as "the
meter"), you need to determine what type of cables to use and whether to use internal or
external guarding and sensing. This decision-making process is covered next.
To Next Page
Loading...
