B&K Precision 1739 Datasheet
Data Sheet
Low Current High Resolution DC Power Supply,
30 V, 1 A
Model 1739
Features and Benefits
■ Low 1 mA settable current limit with
0.1 mA resolution
■ Output on/off button
■ Exceptionally low current ripple and noise
(<0.4 mArms)
■ Excellent regulation
■ Constant voltage (CV) and constant current
(CC) operation
The B&K Precision model 1739 is a high
resolution, low current DC power source with
excellent load regulation and low noise
characteristics. Two 4-digit LED displays
continuously monitor the output voltage and
current. The power supplies can be operated
locally from the front panel or remotely through
the RS-232 interface. The mechanical
configuration conserves bench space and allows
for easy portability.
This power supply is well suited for electrical and
electronics applications requiring precise levels of
low current, including 4-20 mA current loop
testing, calibration, or basic IC testing.
■ Two large, easy-to-read LED displays provide
good visibility in bright or low light conditions
■ CV and CC mode indicator
■ Automatic recall of saved voltage and current
settings upon power-up
■ RS-232 interface
■ Isolated output
■ Overload protection
■ Reverse polarity protection
■ Power-on self test
Low Current Precision Design
The 1739 is a low current precision power supply designed especially for small current applications
that require a clean and precise source. Using a MOSFET circuit design and high quality components
with very low temperature coefficients, the power supply is extremely stable and capable of outputting
current as low as 1 mA with a 100 uA settable resolution. The power supply is also implemented with
a high performance AC line filter to minimize noise on the power line before rectification, allowing for
very low ripple and noise at the output.
Technical data subject to change
© B&K Precision Corp. 2012
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Low Current High Resolution DC Power Supply, 30 V, 1 A
odel 1739
M
Front Panel
Bright, 4-digit
LED displays
Output terminals
LED indicators for
constant voltage and
constant current modes
Voltage and
current
coarse and
fine control
Rear Panel
Fanless heatsink
design for quiet
bench operation
RS-232 interface enables the
instrument to be remotely
controlled via PC
PC Connectivity
Control your instrument via RS-232 interface through the application
software* or by sending programming commands. The application software provides a virtual front panel and a simple data logging function to
store and log data to a text or CSV file.
Specifications
Model 1739
Outp u t R at i n g s ( 0 ° C~40 °C)
Voltage 0-30 V
Current 0-999.9 mA
Loa d Regula t i o n ± ( % of output +o f f s e t)
Voltage 0.04% + 1 mV
Current 0.4% + 0.1 mA
Lin e Regula t i o n ± ( % of outpu t +o f f s e t)
Voltage 0.1% + 3 mV
Current 0.4% + 0.3 mA
Rip p l e & Noise (20 Hz ~ 2 0 MH z)
Voltage <1 mVrms
Current ≤ 0.4 mArms
Recovery Time
Mete r Res o luti o n
Voltage 10 mV
Current 0.1 mA
Mete r Acc ura c y
Voltage 0.5% + 2 digits
Current 0.5% + 2 digits
Ge ner a l
Power Requirements 110/220 VAC ±10%, 50/60 Hz
Power Consumption ≤ 70 VA
Protection Reverse polarity, current limiting
Oper a t i n g E n v i r o nment
Temperature 32 °F to 104 °F (0 °C to 40 °C)
Humidity 75% R.H.
Temperature coefficient (0 °C~35 °C)
±(％of output+offset)
Storage Temperature 5 °F to 158 °F (-15° to +70° C)
Storage Humidity 85% R.H.
Mecha n i c a l S p e c ificati ons
Weight 9 lbs (4 kg)
Dimensions (W x H x D)
Supplied Accessories Power cord, instruction manual, RS232 cable
Note: All specifications apply to the unit after a temperature stabilization time of 30 minutes.
≤ 75 μs
300 ppm/°C
5.5” x 6.2” x 12.5"
(140 x 158 x 318 mm)
Three Year Warranty
*Available for download at www.bkprecision.com
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