Atec B-K-8500 User Manual

Data Sheet

DC Electronic Loads

8500 series

2400W 600 W - 1200 W 300 W

Versatile & Economical DC Electronic
Loads

The 8500 series Programmable DC Electronic
Loads can be used for testing and evaluating a
variety of DC power sources. Their wide oper­ating ranges of up to 500 V and 240 A, flexible
operating modes and excellent measurement
accuracy make the 8500 series well suited for
characterizing DC Power supplies, DC-DC
Converters, batteries, fuel cells and solar cells.

The loads can operate in CC, CV, CR or CP
mode while voltage/current or resistance/power
values are measured and displayed in real time.
Load terminals are isolated and floating.
Extensive protection, including over tempera­ture, over power, over voltage, over current and
reverse polarity will help protect your valuable
prototype.

The DC loads are easy to use. All parameters
can be set quickly and precisely from the front
panel, or programmed via RS232 or USB inter­faces.

The 8 5 0 0 famil y offers 1 0 models with a wide r a nge o f ratings

Model# Power Operating Voltage Rat ed C u r r e n t

8500 300 W 0.1 - 120 V 30 A

8502 300 W 0.1 - 500 V 15 A

8510 600 W 0.1 - 120 V 120 A

8512 600 W 0.1 - 500 V 30 A

8514 1200 W 0.1 - 120 V 240 A

8518 1200 W 0.1 - 60 V 240 A

8520 2400 W 0.1 - 120 V 240 A

8522 2400 W 0.1 - 500 V 120 A

8524 5000 W 0.1 - 60 V 240 A

8526 5000 W 0.1 - 500 V 120 A

When selecting a DC load, it is important to
consider not only voltage and current
requirements, but also power ratings. The power
used when testing must fall within the hatched
region for the appropriate DC load.

Some applications may require high voltage/low
current and low voltage/high current which a
single load may not be able to handle. B&K
Precision’s broad range of DC loads will allow
you to select the optimal model for your
requirements.

Technical data subject to change
© B&K Precision Corp. 2013

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DC Electronic Loads

odels 8500, 8502, 8510, 8512, 8514, 8518, 8520, 8522, 8524, 8526

M

Features

onstant current (CC), resistance (CR), voltage

■ C

(CV) and power (CP) operation

■ Wide voltage and current range, 0 to 500 V, 0

to 240 A (5000 W max)

■ Low minimum operating voltage of < 0.1 V

and minimum input resistance of 5 mΩ (model

8518) allowing the load to sink high current at

low voltages, required for fuel and solar cell

applications

■ Selected models operate up to 500 V, suitable

for high voltage applications

■ Built-in transient generator

■ Short circuit test

■ Built-in high resolution (0.1 mA/1 mV) voltage

and current measurement (models 8500 &

8502)

■ Bright, easy to read display (VFD technology)

■ Over-Current/Over-Voltage/Over-Power/Over-

Temperature Protection

■ RS232 to TTL, USB to TTL serial

converter cables and application software

Applications:

■ DC power supply testing

■ Characterization of rechargeable batteries. A

battery test mode is provided that will measure

the ampere*hour (A*hr) characteristic of a

battery

■ Fuel and solar cell test

■ High voltage applications

included

■ List mode operation for increased throughput.

■ Battery testing mode to provide A*hr rating

of battery (ending voltage level is adjustable)

■ Flexible triggering: Create trigger events by

front panel keystroke, back panel TTL signal,

or software

■ Remote voltage sensing to compensate for the

effect of voltage drop in wires.

■ Store 25 instrument setups

■ Thermostatically-controlled fans allow

operation in quiet environments with minimal

disruption

■ All models are rack mountable. Compact 300

W and 600 W models for bench use

Low voltage operation

The 8500 series can operate well below 1 V
which is important for low voltage application
such as fuel cell and solar cell testing. All models
can regulate (provide a stable input) down to

0.1 V. Model 8518, due to its particularly low
input resistance, can operate at full scale current
of 240 A at 1.2 V (see image)

Typical minimum operating voltage at full scale current:

8500 8502 8510 8512 8514 8518 8520 8522 8524 8526

1.05 V 3 V 1.8 V 3 V 1.92 V 1.2 V 10.8 V 3.6 V 1.56 V 1.8 V

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