User Manual

1 General Information

B&K Precision models MR25080, MR50040, and MR100020 are high voltage programmable DC power

supplies with single outputs that offer the maximum power output up to 5000 watts (0 - 250 V / 80 A

or 0 - 500 V / 40 A or 0 - 1000 V / 20 A). By connecting up to *50 power supplies in parallel, a maximum

output power can reach up to 250 kW. These power supplies are fully programmable and controllable

through analog programming, USB, RS232, RS485, GPIB and Ethernet interface. The front numerical

keypad and rotary knob provide a convenient interface for adjusting voltage, current, operating

functions and enabling/disabling the output. The MR series power supplies also provide over voltage

protection (OVP) and over current protection (OCP) features used to keep the output voltage and

current within a specified safety level and preventing damage to the UUT (Unit Under Test).

1.1 Features:

High power output of up to 5000 watts(0-250V/80A) (0-500V/40 A) (0-1000V/20 A)

USBVCP(virtual COM)/USBTMC/RS232/RS485/Analog/GPIB and Ethernet interfaces

10.

Parallel connectivity for up to *50 units

11.

Adjustable voltage and current slope

12.

9 user defined programs with up to 100 steps each

13.

OVP, OCP, OPP, CV to CC, and CC to CV protection

14.

Store/recall up to 100 sets of voltage/current settings

*Parallel connectivity and operations can be configured in several different modes, however speed and

performance will decrease as each additional units are paralleled together. Refer to section 3.6 Parallel

Operation and 4.1 RS485 for more details regarding the configuration, setup, and limitations.

If you wish to connect more than 10 units in parallel, we advise to contact us at www.bkprecision.com

for further assistance.

1.2 Package Contents

Please inspect the instrument mechanically and electrically upon receiving it. Unpack all items

from the shipping carton, and check for any obvious signs of physical damage that may have

occurred during transportation. Report any damage to the shipping agent immediately. Save the

original packing carton for possible future reshipment. Every power supply is shipped with the

following contents:

15.

1 xMR25080, MR50040, or MR100020 Power Supply

16.

1 x AC Power Cord

17.

1 x Certificate of Calibration