Specifications

For more product information please visit www.bkprecision.com
13
DC Power Supplies
For a list of additional
accessories, visit
www.bkprecision.com
The 9120 Series uses 4mm sheathed
banana jacks that accept sheathed or
shrouded banana plugs and meet the
latest international safety standards
Supplied: User manual, line cord, RS232 communication cable, Software Installation disk
Optional: IT-E132 USB communication cable, IT-E151 rack mount kit,TL 5A (5A test leads), TL 30
(30A test leads), TLPS (Power supply test lead kit)
One Year Warranty
Accessories
DVM and
mΩ meter
User accessible
fuse
Temperature controlled
cooling fan
Serial Interface connector for
RS232 or USB communication.
(USB via optional
communication cable)
Remote Sense and digital
port functionality
Extra Features
The 9120’s digital port offers a variety of configurations. The port
can operate in Digital I/O, external Trigger and DFI/RI (Discrete
Fault Indicator/Remote Inhibit) mode. The RI feature can be used
for turning several power supplies On/Off simultaneously. External
triggering can be used in combination with List mode.
The included Application Software supports front panel emulation
and allows users to generate simple test sequences without the
need to write source code.
Additionally, the power supply comes with a built-in 51/2 digit
DVM and high resolution milliohm meter supporting 4 wire
measurements.
Output Ratings 0 ~32V 0 ~20V 0~72V
( 0 °C~40 °C) 0~3A 0~5A 0~1.2A
Load Regulation <0.01%+2mV <0.01%+2mV
±(%of output+offset) <0.05%+1mA <0.05%+0.3mA
L
ine Regulation <0.01%+1mV <0.01%+1mV
±
(%of output+offset) <0.05%+0.1mA ≤ 0.05%+0.05mA
P
rogramming resolution 0.1mV 0.1mV
0.1mA 0.05mA
Readback/ Meter resolution 0.1mV 0.1mV 0.5mV
0
.01mA 0.05mA 0.01mA
F
ront panel 0.5mV 2mV
setting resolution 0.1mA 0.1mA
Programming accuracy, <0.03%+3mV ≤ 0.03%+6mV
12months (25 °C ± 5 °C) <0.05%+2mA ≤ 0.05%+1mA
±(%of output+offset)
R
eadback/ Meter accuracy <0.02%+3mV ≤ 0.02%+5mV
12months (25 °C ± 5 °C) <0.05%+2mA ≤ 0.05%+1mA
±(%of output+offset)
Ripple & Noise ≤ 4mVp-p ≤ 3mVp-p ≤ 5mVp-p
(20Hz ~20MHz) 3mArms 3mArms 3mArms
Temperature coefficient, <0.02%+3mV ≤ 0.02%+5mV
(0 °C~40 °C) <0.05%+2mA <0.05%+0.5mA
±(% of output+offset)
Readback temperature <0.02%+3mV ≤ 0.02%+5mV
coefficient, <0.05%+2mA ≤ 0.05%+0.5mA
±(% of output+offset)
DVM Accuracy 0~12V range: 0.02%+2mV
0~50V range: 0.02%+3mV
DVM Resolution 0~12V range: 0.1mV
0~50V range: 1mV
Milliohm Meter Accuracy: 0.1% (for Voltage and Current >= 10% of FS)
Accuracy: 0.3% (for Voltage and Current >= 3% of FS)
State Storage Memory 50 user configurable memory locations
Operating Temperature 0 to 40 °C, <75% R.H.
Storage Temperature -20 to 70 °C, <85% R.H
Power Requirements 115V/220VAC ± 10%, 47 to 63Hz
Weight 19.8 lbs, (9 kg)
Dimensions 8.45in(W) x 3.8in(H) x 13.9in(D)
214.5mm(W) x 88.2mm (H) x 354.6mm (D)
Remote Interface
The power supplies can be remotely controlled from any PC with
USB or RS232 interface, allowing you to program and monitor all
parameters through easy to use SCPI commands. The power
supplies come with a RS232 communication cable. A USB
communication cable is available as option.
Specifications
models
9120A 9121A 9124