TB 9-6625-1980-24
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
calibration of Dc Voltage/Current Calibrator, Fluke Model 3330B. 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 5
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
parameters1
Performance specifications
Test instrument
Dc voltage
Range:
10, 100, and 100 V
Accuracy: 0.012% or 120 V for 10 V range
Accuracy: 0.012% or 1.2 mV for 100 V range
Accuracy: 0.012% or 12 mV for 1000 V Range
Dc current
Range:
1, 10, and 100 mA
Accuracy: 0.06% of reading
Panel meter:
Dc voltage
Range:
0 to 1100 V
Accuracy: 1%
Dc current
Range:
0 to 110 mA
1%
Accuracy:
Line/load regulation
Range:
105 to 125 V, 0 to full load
20 V
Accuracy:
1 The
test instrument has been derated to accuracies shown for transfer level calibration.
