Switching DC Power Supplies

1900B Series

3

www.bkprecision.com

v022416

Specifications

Models

1900B

1901B

1902B

Output

Variable Output Voltage

1 – 16 V

1 – 32 V

1 – 60 V

Variable Output Current

0 – 60 A

0 – 30 A

0 – 15 A

Auxiliary Output Current

5 A

Maximum Output Power

960 W

960 W

900 W

Voltage Regulation

Load (0-100% Load)

≤ 50 mV

Line (90-132 VAC, 170-264 VAC Variation)

≤ 20 mV

Current Regulation

Load (10-90% Rated Voltage)

≤ 200 mA

≤ 150 mA

≤ 100 mA

Line (90-132 VAC, 170-264 VAC Variation)

≤ 50 mA

Ripple & Noise

Ripple & Noise Voltage (rms)

≤ 5 mV

Ripple & Noise Voltage (peak-peak)

≤ 50 mV

≤ 50 mV

≤ 100 mV

Current Ripple & Noise (rms)

≤ 100 mA

≤ 50 mA (110 VAC)

≤ 40 mA (230 VAC)

≤ 15 mA

Meter Type & Accuracy

Voltage Meter

3-Digit LED Display ± 0.2% + 3 counts

Current Meter

3-Digit LED Display ± 0.2% + 3 counts

Other

AC Input

100 - 120 VAC 60 Hz, 220 - 240 VAC 50 Hz*

Full Load Input Current

9.4 A (110 VAC)

4.7 A (230 VAC)

9.0 A (110 VAC)

4.5 A (230 VAC

9.3 A (110 VAC)

4.5 A (230 VAC

Efficiency

84% (110 VAC)

85% (230 VAC)

87% (110 VAC)

86% (230 VAC)

87% (110 VAC)

88% (230 VAC)

Switching Frequency

65 – 85 kHz

75 – 95 kHz

65 – 85 kHz

Tracking Overvoltage Protections

O/P 1-5 V: set voltage +2 V

O/P 5-16 V: set voltage +3 V

O/P 1-5 V: set voltage +2 V

O/P 5-20 V: set voltage +3 V

O/P 20-32 V: set voltage +4 V

O/P 1-5 V: set voltage +2 V

O/P 5-20 V: set voltage +3 V

O/P 20-60 V: set voltage +4 V

Transient Response Time (50-100% Load)

1.5 ms

Power Factor Correction

> 0.95 at optimal load

Cooling Method

Thermostatically controlled fan from zero to full speed

Protections

Overload, Short Circuit by Constant Current, Overvoltage, Overtemperature

Special Features

3 User-Defined Voltage and Current Presets, Analog Remote Control, Remote Sense (model 1900B only)

Operating Temperature

32 °F to 104 °F (0 °C to 40 °C), ≤80% R.H.

Storage Temperature

5 ºF to 158 ºF (-15 ºC to 70 ºC), ≤85% R.H.

Dimensions (W x H x D)

7.9” x 3.5” x 10.8” (200 x 90 x 275 mm)

Weight

7 lbs (3.2 kg)

Two-Year Warranty

Included Accessories

Power cord, instruction manual, USB cable, remote control connector

Note: All specifications apply to the unit after a temperature stabilization time of 15 minutes over an ambient temperature range of 23 °C ± 5 °C.

*Special order instructions: For 230 V version, request model 1900B-220 V, 1901B-220 V, or 1902B-220 V.