Sample Applications; Calibrating An 80 Series Handheld Multimeter; Cables; Earth Connection - Fluke 5520A Operator's Manual

4-56. Sample Applications

Samples of a few selected applications are provided here:
•
Calibrating a Fluke 80 Series 3-1/2 digit handheld multimeter
•
Calibrating a Fluke Model 41 Power Harmonics Analyzer for Power and Harmonics
•
Calibrating a Fluke Model 51 Digital Thermometer

4-57. Calibrating an 80 Series Handheld Multimeter

This example goes through the steps necessary to calibrate a Fluke 80 Series handheld
multimeter.
These procedures are included here as an example. The 80 Series Service
Manual contains the authoritative testing and calibration procedures for
80 Series meters.
Two procedures are provided. The first tests each function and range for compliance to
specifications. The second is the calibration procedure for the 80 Series meters. The 80
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 80 Series DMM, you need to determine what type
of cables to use and whether to use Z or not. This decision-making process is
covered next.

4-58. Cables

Fluke 5440A-7002 Low-Thermal Cables are recommended for many calibrations
connections, but they are not specifically required for 80 Series calibration. Thermal emf
errors that the Low-Thermal cables are designed to reduce are not significant when
calibrating a 3-1/2 digit meter. The cables support the following measurements:
•
AC and dc voltages
•
All resistances
•
AC and dc currents up to 20 A

4-59. EARTH Connection

Because the 80 Series DMMs are battery operated, their inputs have no connection to
earth ground. Therefore, enabling the calibrator's earth (chassis) ground to guard and LO
is appropriate. connection is appropriate. (Press the Z key so that the indicator is lit,
and make sure the B indicator is off.)
Note
Front Panel Operation
Sample Applications
4
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