B&K Precision MDL200, MDL252, MDL302, MDL305, MDL400 Data Sheet

Data Sheet

Modular Programmable DC Electronic Load

MDL Series

Features and Benefits

The MDL Series is a multi-channel modular
programmable electronic load system. Seven

mode, which uses DSP technology to simulate

non-linear loads and realistic loading behavior.
different modules of programmable DC loads
ranging in power from 200 W to 600 W
provide users the flexibility to test a wide range
of power sources from multi-output AC/DC
power supplies to batteries, fuel cells, and
photovoltaic arrays.

Easily edit the load’s parameters such as voltage,

current, slew rate, and width via the front panel.

Increase productivity by saving your test

parameters into any one of the 101 memory

areas for quick system recall. Additionally, the

MDL Series provides 16-bit resolution as well
The mainframe has four slots that can be
configured with any assortment of the modules
up to 2400 W (up to 4800 W with mainframe

as numerous protection modes and a power-on

system self-test to ensure the reliability of your

testing.
extension). The high-performance electronic load
modules of the MDL Series are capable of
operating in constant current (CC), constant
voltage (CV), constant resistance (CR), constant
power (CW), and constant impedance (CZ)

For remote communication, the MDL series

provides LAN, USBTMC compliant USB,

RS232, and GPIB standard interfaces that

support SCPI command protocol.

Modules MDL200 MDL252 MDL302 MDL305 MDL400 MDL505 MDL600

Power 200 W

*250 W/

50 W

300 W/

300 W

300 W 400 W 500 W 600 W

Operating Voltage 80 V 80 V 80 V 500 V 80 V 500 V 80 V

Rated Current 40 A 20 A 45 A 20 A 60 A 30 A 120 A

No. of Channels 1 2 2 1 1 1 1

* The MDL252 is a dual-channel 250 W load module supporting a
unique flexible power configuration. The user can allocate up to
250 W to either channel up to 300 W total (e.g. 50 W/250 W,
250 W/50 W, 150 W/150 W), thus replacing many dual-channel
modules with fixed power distribution.

■ Power range up to 2400 W

■ Voltage range up to 500 V

■ Current range up to 120 A

■ CC/CV/CR/CW/CZ operating modes

■ Removable modules for easy system

configurability

■ Support for up to 16 channels using dual

channel modules with mainframe extension

■ Operate identical modules in parallel mode

for high current applications

■ Synchronous Load on/off function

■ Standard LAN, GPIB, USB, and RS-232

interfaces with USBTMC/SCPI protocol support

■ Analog current control and monitoring

■ Transient mode up to 25 kHz

■ List mode (sequence mode) - minimum 20 µs

step width with 84 user programmable steps

■ Adjustable slew rate in CC mode

■ 16-bit voltage and current measurement

system providing high resolution of 0.1 mV

and 0.01 mA

■ Automatic test function

■ 101 memory locations to save/recall setting

parameters

■ Remote sense

■ OVP/OCP/OPP/OTP and reverse voltage

protection

Technical data subject to change
© B&K Precision Corp. 2015

www.bkprecision.com

Modular Programmable DC Electronic Load

MDL Series

Front panel

▲

Brig h t VFD displa y

Modu le s

Ad j ust ment knobMo d u l e pan e l k ey s

Ma i n f r a m e
fu n c t i o n k eys

Num e r i c
ke ypad

Po w er
sw i tc h

Mai nfr a m e

Rear panel

▲

RS - 2 3 2 i n t e r f a ce

LAN i n terface

Mai n f r a m e
tri g ge r I/O and
sy nc h r onizati on
on /of f cont ro l

GP IB inte rfa c e

US B i nte rf a c e

Mai nfr a m e
ex te n s i o n
con nec t o r

Loa d inp u t termi nals

Modu le
current
mon i t o r i n g
term i n a l

Mo d u l e re m o t e s en s e , di g i t al I / O, a nd a n a log c u r r e nt c o n trol termina l

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