TB 9-6130-285-24
IDENTIFICATION AND DESCRIPTION
This bulletin provides instructions for the
1. Test Instrument Identification.
calibration of DC Power Supplies (General). The manufacturers' manuals were 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. Variations among models are described in text, tables, and
figures.
b. Time and Technique. The time required for this calibration is approximately 2
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 applications which pertain
to this calibration are in table 1.
Table 1. Calibration Description
Test instrument parameters and performance specifications
1735A B&K Precision
Load Regulation,
Line Regulation,
Ripple and Noise
Range/Accuracy
Peak-to-Peak: 2 mV,
0 to 30 V dc, 0 to 3 A dc
Voltage 0.01% + 3 mV
Voltage (108-132 V):
typical
Current 0.2% + 3 mA
0.01% + 3 mV
Readback (meter)
RMS: 1 mV
Current (108-132 V):
Accuracy
Current Ripple: 3 mA
Voltage (0.5% + 9 digits)
0.2% + 3 mA
typical
Current (0.5% + 9 digits)
1791 B&K Precision
Load Regulation,
Line Regulation,
Range/Accuracy
Ripple and Noise
1
Voltage < 0.01% 2 mV Voltage < 0.01% 2
0 to 64 Vdc, 0 to 10 A dc
< 1mV rms Max
Constant voltage mode
for 10% change in
mV for load change
(20 Hz -20MHz)
Meter Accuracy
< 3 mA rms
line voltage
from zero to full load
Current < 0.05% for
3dgts, V dc, A dc
Current < 0.05% for
10 mA for change in
10 mA for change in
output voltage from 0
line voltage
volts to maximum
output voltage
6654A HP
Load Regulation,
Line Regulation,
Ripple and Noise
Range/Accuracy
1
Voltage 4 mV
Voltage 1 mV
(20 Hz -20 MHz)
0 to 60 V/ 0 to 9 A
Voltage rms 500 μV peak-
Current 0.5 mA
Current 0.5 mA
Programming Accuracy
Voltage (0.06% of rdg + 26
peak 5 mV
mV)
Current rms 3 mA
Current (0.15% of rdg + 8
mA)
Readback Meter Accuracy
Voltage 0.07% + 40 mV
+Current 0.15% + 7 mA
Current 0.35% + 15 mA
See footnote at end of table.
