User manual

15
www.bkprecision.com
Value (DC)
Power Supplies
S
witching, High Current DC Power Supplies
B&K Precision models 1692, 1693, and 1694
are high current
switching mode DC power supplies. Switching power supplies have
the advantage of being lightweight and high in efficiency when
compared to traditional linear mode power supplies. These power
supplies provide a variable voltage output from 3V to 15V at 40A
(model 1692), 1V to 15V at 60A (model 1693), or from 1V to 30V at
30A (model 1694).
Additionally, models 1693 and 1694 have remote sensing and
analog remote control terminals. Remote sense compensates for
voltage drop across the load leads. The analog remote control
feature can be used to control the output voltage or turn the
output on/off.
Features and Benefits
■ Lightweight and compact
■ Current foldback circuitry with illuminated indicator prevents
overloading the power supply
■ Overtemperature protection circuitry
■ Overvoltage protection
B&K Precision models 1900, 1901, 1902, 1685B, 1687B and
1688B
are laboratory grade switching DC power supplies with high
current output in a small, lightweight form factor. They provide
various configurations of high output voltage or high output current
and feature rotary encoder control knobs, which make setting
voltage and current fast and precise. Its dual action push button
allows the user to set both coarse and fine, voltage and current
levels.
Features and Benefits
■ Automatic CV (Constant Voltage)/ CC (Constant Current)
crossover operation
■ Lightweight and compact
■ Rotary encoder control for precise voltage and current setting
■ Save up to 3 user-defined voltage and current presets for quick
recall
■ Analog remote control function
■ Remote sensing terminal (model 1900 only)
■ Overvoltage, overtemperature, and overload protection
■ USB interface with PC software for remote control and external
timed programming (models 1685B, 1687B, 1688B only)
Power
(W)
Voltage
(V)
Curren t
(A)
Ripple & Noise
(mVpp)
Weight
Di me nsions
(W x H x D)
Model
300 1-60 0-5 50 5.2 lbs (2.4 kg)
7.9” x 3.5” x 8.2”
(200 x 90 x 208 mm)
1685B
360 1-36 0-10 50 5.2 lbs (2.4 kg) 1687B
360 1-18 0-20 50 5.2 lbs (2.4 kg) 1688B
600 3-15 40 10 7.7 lbs (3.5 kg)
8.67” x 4.33” x 11.82”
( 220 x 110 x 300 mm)
1692
900 1-15 60 40 12.8 lbs (5.8 kg)
8.66” x 4.33” x 14.17”
(220 x 110 x 360 mm)
1693
900 1-30 30 40 12.8 lbs (5.8 kg) 1694
900 1-60 0-15 100 7 lbs (3.2 kg)
7.9 “ x 3.5” x 10.8”
(200 x 90 x 275 mm)
1902
960 1-16 0-60 50 7 lbs (3.2 kg) 1900
960 1-32 0-30 50
7 lbs (3.2 kg) 1901
M
odel 1693 Model 1900