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Data Sheet
Triple Output DC Power Supplies
Models 1672 & 1673
Quad LED Display
Simultaneously display voltage and current for both
variable outputs
B&K Precision’s 1672 and 1673 are quad
display triple output DC power supplies that
provide two variable outputs and one fixed
output. The variable outputs can work
independently, in series tracking, or parallel
mode. Conveniently adjust voltage and current
with independent front panel knobs and bright
quad LED display.
Accessible through a simple push/pull switch, the
1672 and 1673’s unique series and parallel
tracking features let you easily double the output
voltage or current. For achieving even higher
voltages or current, multiple units can be
connected in series or parallel.
Ratings / Model 1672 1673
Voltage (variable outputs) 0 - 32 V
Current (variable outputs) 0 - 3 A 0 - 6 A
Fixed output 5 V/ 3 A
The 1672 and 1673 are both designed to
operate in a constant voltage or a constant
current mode with automatic crossover, allowing
continuous transition from constant current to
constant voltage modes in response to load
condition changes.
These power supplies are ideally suited for
applications in electronic test, production, and
service, where multiple independent DC power
supplies are required.
Features and Benefits
■ Three independent outputs
■ Individual control knobs for voltage and
current settings of variable outputs
■ CV (constant voltage)/CC (constant current)
mode operation
■ Separate 3-digit voltage and current displays
for variable outputs
■ LED indication for CV/CC mode
■ Overload indication LED for fixed output
■ Series tracking and parallel tracking mode
operation to double output voltage or current
respectively
Technical data subject to change
© B&K Precision Corp. 2014
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Triple Output DC Power Supplies
odels 1672 & 1673
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User-Friendly Design
Intuitive Operation Quad Display
Easy-to-use voltage and current adjustment
knobs with simple push/pull switch mechanism
for series and parallel tracking modes.
The 1672 and 1673’s bright, quad 3-digit LED
displays provide excellent readability at a distance
and allows you to view voltage and current
output values for variable outputs independently.
CC and CV mode LEDs clearly indicate constant
current or constant voltage mode.
Front panel
Bright, easy-to-read LED
Power On/Off switch
displays for both variable voltage
and current outputs
Safety in Mind
Both models use sheathed safety banana input
jacks that accept sheathed or shrouded banana
plugs and meet the latest international safety
standards.
Series and parallel tracking
mode LED indicators
Individual voltage and
current controls for
variable outputs
Overload indication
LED for fixed output
LED indicators for
constant current and
constant voltage mode
Three independent outputs
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Triple Output DC Power Supplies
odels 1672 & 1673
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Specifications
Model 1672 1673
Output Parameters
Number of Outputs Three (two variable and one fixed)
Range
Constant Voltage Mode(variable outputs)
Line Regulation <0.01% + 5 mV
Load Regulation <0.2% + 10 mV <0.55% + 10 mV
Ripple & Noise <1 mVrms
Constant Current Mode (variable outputs)
Line Regulation <0.2% + 5 mA
Load Regulation <0.2% + 8 mA 0.4% + 8 mA
Ripple & Noise <3 mArms
Tracking Operation
Slave Tracking Error < 0.5%+3 digits of the master
5V Fixed Output
Voltage Accuracy 5 V ± 0.25 V
Ripple & Noise <1 mVrms
Display
Voltage 3 digits 0.56” Green LED
Current 3 digits 0.56” Red LED
Accuracy <0.1% + 3 digits
General
AC Input 115/230 V ± 10%, 50/60 Hz ± 10%
Operating Temperature 50 °F to 104 °F (10 °C to 40 °C)
Humidity 90% R.H.
Temperature Coefficient <300PPM / C° (voltage and current)
Dimensions (W x H x D) 9” x 6.7” x 12.2” (230 x 170 x 310 mm)
Weight 12.6 lbs (5.7 kg) 19.8 lbs (9.0 kg)
Included Accessories Power cord, instruction manual, two pairs of test leads
Note: All specifications apply to the unit after a temperature stabilization time of 15 minutes over the ambient temperature range of 25º C ± 5º C
0 to 32 VDC / 0 to 3 A (variable)
and 5 V / 3 A (fixed)
0 to 32 VDC / 0 to 6 A (variable)
and 5 V / 3 A (fixed)
<1 mVrms (independent/master)
<4 mVrms (slave)
Two-Year Warranty
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