TB 9-6625-2263-24
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
calibration of Digital Multimeter, Fluke, Model 8520A. The manufacturer's manual was
used as the prime data source in compiling these instructions. The equipment being
calibrated will be referred to as the TI (test instrument) throughout this bulletin.
a. Model Variations. None.
b. Time and Technique. The time required for this calibration is approximately 2
hours, using the dc and low frequency technique.
2. Forms, Records, and Reports
a. Forms, records, and reports required for calibration personnel at all levels are
prescribed by TB 750-25.
b. Adjustments to be reported are designated (R) at the end of the sentence in which
they appear. When adjustments are in tables, the (R) follows the designated adjustment.
Report only those adjustments made and designated with (R).
3. Calibration Description. TI parameters and performance specifications which
pertain to this calibration are listed in table 1.
Table 1. Calibration Description
Test Instrument Parameters
Performance Specifications
Dc voltage
Accuracy
(% of input
Range
Full-scale
+ digits)
100 mV
199.999
0.011 + 10
1V
1.99999
0.011 + 2
10 V
16.0100
0.009 + 1
100 V
130.100
0.012 + 2
1000 V
1024.00
0.011 + 1
Ac voltage
Accuracy1
(% of input + % of FS)
Range
Full-scale
1
V
1.99999
10 to 20 Hz
3.5 + 0.6
10
V
16.0100
20 to 40 Hz
0.6 + 0.6
100
V
130.100
40 Hz to 20 kHz
0.15+ 0.05
650
V
650.00
20 to 100 kHz
2.0 + 0.6
100 to 300 kHz
4.0 + 1.0
300 kHz to 1 MHz 15.0 + 5.0
See footnotes at end of table.
