5700A/5720A Series II
Operators Manual
4-56
4-60. Calibrating a Fluke Model 8840A Series Digital Multimeter
This example calibrates a 5-1/2 digit Fluke 8840A DMM. Procedures used in this
example are for illustrative purposes. For the authoritative and complete calibration
procedures for the 8840A, refer to the
8840A Instruction Manual.
4-61. Cables
According to the text under “Connecting the Calibrator to a UUT,” the 5440A-7002 or
5440A-7003 Low-Thermal Cables are recommended for:
•
All dc voltage
•
All resistance
•
AC voltage < 10 kHz
•
AC current ≤ 2A ≤ 10 kHz
•
DC current ≤ 2A
Since all of the 8840A tests include these functions, you should use the Low-Thermal
Cables. The 8840A’s outputs all have recessed banana connectors, so use the 5440A-
7002 Low Thermal Cables, which have banana plugs.
4-62. Guarding
The 8840A inputs are not grounded, so you should establish the ground point at the
calibrator. To do so, set the calibrator to internal guard (
x indicator off), and connect
the 8840A to the calibrator as Figure 4-13 shows.