TB 9-6625-133-40
IDENTIFICATION AND DESCRIPTION
This bulletin provides instructions for the
1. Test Instrument Identification.
calibration of Reference Multimeter, Fluke, Model 8508A, 8508A/01 and 8508A/02. The
manufacturer's manual was used as the prime data sources in compiling these instructions.
The equipment being calibrated will be referred to as the TI (test instrument) throughout
this bulletin.
a. Model Variations. The Fluke Model 8508A/02 is a Fluke Model 8508A/01 (front
and rear input terminals) with Fluke Model 8508A-LEAD (measurement lead kit). The
Fluke Model 8508A, 8508A/01 and 8508A/02 all have the same performance specifications.
b. Time and Technique. The time required for this calibration is approximately 10
hours, using the dc and low frequency technique.
2. Forms, Records, and Reports. Forms, records, and reports required for calibration
personnel at all levels are prescribed by TB 750-25.
3. Calibration Description. TI parameters and performance specifications which
pertain to this calibration are listed in table 1.
Table 1. Calibration Description.
Test instrument
Performance specifications1
parameters
Range:
Accuracy:
(ppm of reading + ppm of range)
200 mV
6.5 + 0.6
2V
4.5 + 0.25
DC Voltage
20 V
4.5 + 0.25
200 V
7.0 + 0.25
1000 V
7.0 + 0.6
Accuracy
Range
(ppm of reading + ppm of range)
10 Hz - 40 Hz
160 + 25
40 Hz - 100 Hz
135 + 25
100 Hz - 2 kHz
135 + 12
200 mV
2 kHz - 10 kHz
165 + 25
10 kHz - 30 kHz
395 + 50
30 kHz - 100 kHz
855 + 120
AC Voltage
10 Hz - 40 Hz
135 + 12
40 Hz - 100 Hz
110 + 12
100 Hz - 2 kHz
90 + 12
2 kHz - 10 kHz
135 + 12
2 V, 20 V, 200 V
10 kHz - 30 kHz
260 + 25
30 kHz - 100 kHz
650 + 120
100 kHZ - 300 kHz
0.3% + 0.12%
300 kHz - 1 MHz
1% + 1.2%
See footnotes at end of table.
