Appendix B: Verification
Series 2280 Precision DC Power Supply Reference Manual
B-18
077085503 / March 2019
Required equipment
These procedures use external equipment to directly check warranted characteristics. The following
table lists the required equipment.
Equipment
Required specifications
Recommended model
Connectors
Connect wire assemblies and test resistors
Linear AC power source
Variable AC output from 90 VAC to 265 VAC with
at least 750 VA capacity
Electronic load
Variable DC load capable of 6 A and 75 VDC
DC voltmeter
7½ -digit high-accuracy voltmeter
Keithley 2001/2002
High current hook up wire
18 AWG minimum connection wires
Low current hook up wire
22 AWG minimum connection wires
50 m
Ω precision shunt
resistor
50 mΩ precision shunt with 5 ppm at 25 °C
±4 ppm/°C temperature coefficient
Isotek Corp
RUG-Z-R050-0.1-TK1
5
Ω precision shunt resistor 5 Ω precision shunt with 25 ppm at 25 °C
±4 ppm/°C temperature coefficient
Isotek Corp
RUG-Z-5R00-0.1-TK1
Current sense resistor
cabling
Kelvin 4 terminal measuring cables from shunt
resistor to voltmeter
300
Ω resistor
Power rating > 5 W
Check DC voltage setting readback accuracy with remote sense
Equipment required
AC power source
High-current 18 AWG wire
Electronic load
Low-current 22 AWG wire
DC voltmeter
0.3 Ω resistors
To check DC voltage setting readback accuracy with remote sense:
1. Power off the device under test (DUT).
2. Remove the shorting jumpers that connect the output terminals to the sense terminals from the
output mating connector on the rear panel.
3. Set up the equipment, as shown in the following figure.
