B&K Precision 1550 - Manual - Manual (Page 6)

Tracking Output Over Voltage Protection (OVP)
This is to protect the connected load in the event that the output voltage control circuit mal-
functions, the maximum output voltage will not exceed 40% of the adjusted voltage value at the
time of the operation.
Over Temperature Protection
When the temperature inside the power supply becomes higher than a pre-determined value, the
output voltage and current of the power supply will automatically decrease to zero to prevent
damage to power supply. When the temperature inside the power supply returns to about 65°C
then the power supply will automatically return to operation again.
Specifications
AC Input 100 – 120Vac, 60Hz*
Full Load Input Current at 120Vac 1.8A (+10%)
MAIN OUTPUT:
Output Voltage Adjustable Range 1.0 – 36VDC
Output Current Adjustable Range 0 – 3A
Voltage Regulation
Load from 10% to 100% +50mV
Line from min to max +20mV
Ripple (rms) +5mV
Noise (Peak to Peak) +50mV
Current Regulation
Load from 10% to 100% +20mA
Line from min to max +20mA
Switching Operation Frequency 80KHz to 120KHz
Efficiency at Max Power 83% (+10%)
Voltmeter and Ammeter Display 3 Digit
Voltmeter Accuracy +1% + 5rdg.
Ammeter Accuracy +1% + 5rdg.
USB OUTPUT:
Output Voltage 5V (+10%)
Output Current 400mA (+10%)
Load Voltage Regulation 80mV (+10%)
Ripple & Noise (no load rms) 8mV (+10%)
LCD Indication CC, CV, Amp, Volt, Output ON-OFF
Protection Short Circuit, Overload, Over Temperature, Tracking OVP
Cooling System Natural Convection
Dimensions (WxHxD) 2.8 x 6.0 x 9.8 (70 x 150 x 250mm)
Weight 4.4lbs. (2Kgs)
Note: *For 220V input, order model number 1550-220V