Data Sheet Single Output DC Power Supplies Models 1740B, 1743B, 1744A, 1745A & 1746B These power supplies have all of the great features you would expect B+K Precision power supplies to have and some new features not normally seen on power supplies in this price range. The output-shorting button allows the user to short the output terminals to set the current limit. Model 1744A 1746B Model 1745A Specifications 1740B 1743B 1744A 1745A Output Voltage 0-60 V 0-35 V 0-16 V 0-35 V 0-35 V Output Current 0-4 A 0-6 A 0-10 A 0-10 A 0-10 A Features & Benefits ratings ever offered Constant Voltage Operation Voltage Regulation Line (120 VAC 10%) <0.2% + 2 mV Load (no load - full load) <0.04% + 2 mV Recovery Time <100 s Ripple & Noise 1 mV rms (Typical) Temperature Coefficient <300 ppm/C 5% to 100% Current Regulation Current Ripple 2-Analog Reliable, Durable Operate continuously at full load without overheating Line (120 VAC 10%) <0.4% + 5 mA Load <0.4% + 5 mA Fully overload protected Coarse and fine voltage controls <3 mArms Excellent regulation Very low ripple Constant voltage or constant current Continuously monitor voltage and current Dual 4-digit LED 2-Analog 2-Analog Dual 4-digit LED Voltmeter Range 0-64 V 0-99.99 V (green) 0-16 V 0-40 V 0-99.99 V Voltmeter Accuracy 2.5% (0.5% + 9 digits) 2.5% 2.5% (0.7% + 9 digits) High Range 0-4.4 A 0-9.999 A (red) 0-11 A 0-11 A 0-9.999 A Low Range 0-1.1 A - 0-2.2 A 0-2.2 A - Ammeter Accuracy 2.5% (0.5% + 9 digits) 2.5% 2.5% (0.7% + 9 digits) operation output on two meters Ammeter Range General Overload Protection Current limiting, reverse polarity, overvoltage, short circuit AC Input 120/220 VAC 10%, 50/60 Hz Power Consumption Connect two supplies in series to double the voltage output Metering Type Connect two supplies in parallel to double the current output Constant Current Operation Adjustable Current Limit Largest selection of voltage and current 450 W 420 W 380 W 560 W 560 W Operating Temperature 32 to 104 F (0 to 40 C), <75% R.H. Storage Temperature 5 to 158 F (-15 to +70 C), <85% R.H. Dimensions (H x W x D) 5.7" x 10.5" x 15" (145 x 267 x 381 mm) Weight 23 lbs (10.4 kg) 20 lbs (9.1) 27 lbs (12.2) Two-Year Warranty Included Accessories Technical data subject to change (c) B&K Precision Corp. 2014 v080414 Instruction manual , spare fuse and power cord www.bkprecision.com