Comparison Guide
Triple Output DC Power Supplies
9140 Series
Company B&K Precision Keysight Rohde & Schwarz
Model 9140 9141 9131B 9132B E36233A E36234A NGP822
List price $1,850 $1,595 $2,858 $3,250
Output Power 300 W (100 W per channel) 375 W total 400 W (200 W per channel) 400 W (200 W per channel)
Form Factor 2U x 1/2 2U x 1/2 3U x 1/2 2U x 14.25 inches
Cost-Per-Watt $6.17 $4.25 $7.15 $8.13
Output Characteristics
Number of Outputs 3 3 2 2 (4 channel option $4,875)
Multi-ranging (autorange)
DC Output Rating 32 V / 8 A per channel 60 V / 4 A per channel
Load Regulation ≤ 0.01% + 3 mV ≤ 0.01% + 3 mV < 0.01% + 2 mV < 0.01% + 10 mV
Ripple and Noise
(20 Hz to 20 MHz)
Max Series Mode Voltage 96 V 180 V 62 V 122 V 60 V 120 V 128 V
Max Parallel Mode Current 24 A 12 A 15 A 9 A 40 A 20 A 20 A
Features
Multi-type Output Terminals
List Mode Programming
Data Logging to USB
Configurable Digital I/O Terminal
General
Standard I/O Interfaces
(1)
Mark
NRTL
Warranty 3 years 3 years 3 years 3 years
(1)
Nationally recognized test laboratory such as UL, CSA, TUV
Technical data subject to change
© B&K Precision Corp. 2020
Prices listed as of 12-14-2020
≤ 5 mVpp / ≤ 1 mVrms
≤ 3 mArms
✔ Supports both sheathed/unsheathed banana
USB (TMC/VCP), LAN (LXI),
(GPIB model option +$190)
cTUVus certification mark - CSA certification mark cTUVus certification mark
✔
Ch 1 & 2: 30 V / 6 A
Ch 3: 5 V / 3 A
≤ 10 mVpp / ≤ 2 mVrms
≤ 3 mArms
and spade lug type
≤ 1 mVrms
≤ 5 mArms
Supports only unsheathed banana
plug and spade lug type
✔ ✔ Limited ✔ ✔
✔
✔
USBTMC, RS232, GPIB USBTMC, LAN (LXI), (GPIB option +$301)
No
Ch 1 & 2: 60 V / 3 A
Ch 3: 5 V / 3 A
≤ 1 mVrms
≤ 4 mArms
-
-
bkprecision.com
✔ ✔
30 V / 20 A per channel 60 V / 10 A per channel 64 V / 10 A per channel
< 4.5 mVpp /
< 350 µVrms < 1 mArms
Supports only spade lug type
< 3.5 mVpp /
< 350 µVrms < 1 mArms
30 mVpp / 3 mVrms
Supports only sheathed/unsheathed
✔ ✔
✔
USB (TMC/VCP), LAN,
(GPIB option +$480)
3.5 mArms
banana plug
Option +$365
v121620
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