1900

Data Sheet High Power Switching DC Power Supplies Models 1900, 1901 & 1902 Full-Featured DC Power Supplies to Meet Your High Power Needs B&K Precision models 1900, 1901, and 1902 are laboratory grade switching DC power supplies with high current output in a small, lightweight form factor. The 1900 Series 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. In addition to constant voltage (CV) and constant current (CC) modes, the high efficiency DC power supply offers a unique solution with Features and Benefits its preset and remote control modes. Save up to three different presets of voltage and current values for quick recall. The analog remote control function allows the output power, voltage, and current to be adjusted without touching the front panel of the power supply. A remote sensing terminal (model 1900 only) is also available to compensate for voltage drop across load leads. These features make the 1900, 1901, and 1902 suitable for a wide range of applications requiring high current including production testing, telecommunications, R&D, service, and university labs. ■ Automatic CV (Constant Voltage)/CC (Constant Current) crossover operation ■ Up to 60 A output current ■ 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 ■ Flexible operating modes: Front panel (normal), Preset, or Remote Control ■ Outputs/Model 1900 1901 1902 Variable Output Voltage 1 - 16 V 1 - 32 V 1 - 60 V Variable Output Current 0 - 60 A 0 - 30 A 0 - 15 A Technical data subject to change © B&K Precision Corp. 2014 w w w.bk prec ision.c om Front panel 5 amp auxiliary output High Power Switching DC Power Supplies Models 1900, 1901 & 1902 Designed to Make Your Work Easier Flexibility & Performance Fully Protected Have peace of mind knowing that these power supplies come with built-in OVP (overvoltage protection), OTP (overtemperature protection), and OLP (overload protection) circuitry. These protections help prevent serious damage to equipment in case of power supply failure. Bright, dual LED displays Rotary encoder knobs for quick and precise setting of voltage and current LED indicators for constant voltage and constant current modes Custom Presets Quickly use common voltage and current settings with a flip of the Recall preset switch. Up to three different presets can be set and recalled. Rear Control Indicator Analog Remote Control Capability Use the included connector to wire up to an external variable DC voltage source or variable resistor to remotely control the power supply's output voltage and current or to turn the output on/off. Rear Panel Main output terminal Recall preset switch Remote Sense (Model 1900 only) Improve regulation of the power supply’s output voltage at the load by using the remote sense terminals to compensate for voltage drop across load leads. Auxiliary output terminal Analog remote control terminal Mode selection switch Cooling fan High Power Switching DC Power Supplies Models 1900, 1901 & 1902 Specifications Mode ls 1900 1901 1902 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 5A Vo ltage Reg ul at ion Load (0-100% Load) ≤ 50 mV Line (90-132 VAC, 170-264 VAC Variation) ≤ 20 mV Current Re gul at ion Load (10-90% Rated Voltage) ≤ 200 mA ≤ 150 mA ≤ 100 mA ≤ 50 mA Line (90-132 VAC, 170-264 VAC Variation) Ripple & Noise ≤ 5 mV Ripple & Noise Voltage (rms) Ripple & Noise Voltage (peak-peak) Current Ripple & Noise (rms) ≤ 50 mV ≤ 50 mV ≤ 100 mV ≤ 100 mA ≤ 50 mA (110 VAC) ≤ 40 mA (230 VAC) ≤ 15 mA Mete r Type & Accuracy Voltage Meter 3-Digit LED Display ± 0.2% + 3 counts Current Meter 3-Digit LED Display ± 0.2% + 3 counts Oth er 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 1900 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, 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 1900-220 V, 1901-220 V, or 1902-220 V. 3 v040914 w w w.bk prec ision.c om