TB 9-6625-2269-24
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
calibration of Digital Multimeter, Fluke, Models 8021B, 8022A and 8022B.
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. Model 8021B contains an audible continuity feature; otherwise,
all models are alike.
b. Time and Technique. The time required for this calibration is approximately 1
hour 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.
Test instrument
parameters
Performance specifications
Dc voltage
Range: 0 to 1000 V (in 5 ranges)
Accuracy: (0.25% of reading + 1 digit)
Ac voltage
Range: 0 to 750 V (in 5 ranges)
Accuracy: (1.0% of reading + 3 digits)
Ac current1
Model 8021B
Range: 0 to 2000 mA (in 4 ranges) from 45 Hz to 450 Hz
Accuracy: (3% of reading + 3 digits) for 2 mA range
(2% of reading + 3 digits) for other 3 ranges
Accuracy: (2% of reading + 3 digits) for all ranges
Model 8022A
Accuracy: (3% of reading + 3 digits) for 2 mA range
Model 8022B
(2% of reading + 3 digits) for other 3 ranges
Dc current
Range: 0 to 2000 mA (in 4 ranges)
Accuracy: (0.75% of reading + 1 digit)
Range: 0 to 20 M (in 6 ranges)
Accuracy: (0.3% of reading + 3 digits) for 200 range
(0.2% of reading + 1 digit) for 2 k through 2000 k
ranges
(2% of reading + 1 digit) for 20 M range
1Ac
current verified during dc current check since same shunt resistors are utilized for both functions.