BK Precision 8500B Series User Manual

Operation Modes 34
6.1.2 Slew Rate Conguration
In CC mode, the rate or slope of the change can be congured. Set the slew rate as slow as 0.0001 A/µs
or as fast as 1 A/µs depending on the model and selected current range as shown in table 6.2.
The Rise and Fall time of the load can be congured under the Setup menu. To enter the setup menu
press the + buttons then use the up / down navigation keys to navigate to the UP and DOWN
parameters.
Programmable DC Electronic Loads
8500B Series
6
www.bkprecision.com
Specifications
Model 8542B 8500B 8502B 8510B 8514B
Input ratings
Input voltage 0 to 150 V 0 to 150 V 0 to 500 V 0 to 120 V 0 to 120 V
Input current
Low 0 to 3 A 0 to 3 A 0 to 3 A 0 to 12 A 0 to 24 A
High 0 to 30 A 0 to 30 A 0 to 15 A 0 to 120 A 0 to 240 A
Input power 150 W 300 W 300 W 600 W 1500 W
Minimum operating voltage
Low 0.25 V at 3 A 0.14 V at 3 A 0.6 V at 3 A 0.2 V at 12 A 0.25 V at 24 A
High 2.5 V at 30 A 1.4 V at 30 A 3 V at 15 A 2 V at 120 A 2.5 V at 240 A
CV mode
Range
Low 0.1 to 18 V 0.1 to 50 V 0.1 to 18 V
High 0.1 to 150 V 0.1 to 500 V 0.1 to 120 V
Resolution
Low 1 mV
High 10 mV
Accuracy
Low ±(0.05% + 0.02% FS)
High ±(0.05% + 0.025% FS)
CC mode
Range
Low 0 to 3 A 0 to 3 A 0 to 12 A 0 to 24 A
High 0 to 30 A 0 to 15 A 0 to 120 A 0 to 240 A
Resolution
Low 0.1 mA 1 mA 1 mA
High 1 mA 10 mA 10 mA
Accuracy
Low ±(0.05% + 0.05% FS)
High ±(0.05% + 0.05% FS)
CR mode
Range
Low 0.05 Ω to 10 Ω 0.3 Ω to 10 Ω 0.05 Ω to 10 Ω 0.05 Ω to 10 Ω
High 10 Ω to 7.5 kΩ 10 Ω to 7.5 kΩ 10 Ω to 7.5 kΩ 10 Ω to 7.5 kΩ
Resolution 16 bit
Accuracy
Low 0.01% + 0.08 S (0.01% + 12.5 Ω)
High 0.01% + 0.0008 S (0.01% + 1250 Ω)
CW mode
Range 150 W 300 W 300 W 600 W 1500 W
Resolution 10 mW 10 mW 10 mW 10 mW 10 MW
Accuracy ±(0.2% + 0.2% FS) ±(0.1% + 0.1% FS) ±(0.2% + 0.2% FS)
Transient mode (CC mode)
T1 & T2
(1)
50 µs to 3600 s/Resolution: 1 µs 100 µs to 3600 s/Resolution: 1 µs
Accuracy 5 µs ± 100 ppm 10 µs ± 100 ppm
Slew rate
(2)
Low 0.0001 to 0.2 A/µs 0.0001 to 0.2 A/µs 0.001 to 0.2 A/µs 0.001 to 0.3 A/µs
High 0.001 to 1 A/µs 0.001 to 0.8 A/µs 0.001 to 0.4 A/µs 0.01 to 0.8 A/µs
Note: All specifications apply to the unit after a temperature stabilization time of 30 minutes over an ambient temperature range of 23 °C ± 5 °C.
(1) Fast pulse trains with large transitions may not be achievable.
(2) The slew rate specifications are not warranted but are descriptions of typical performance. The actual transition time is defined as the time for the input to change from 10% to
90%, or vice versa, of the programmed current values. In case of very large load changes, e.g. from no load to full load, the actual transition time will be larger than the
expected time. The load will automatically adjust the slew rate to fit within the range (high or low) that is closest to the programmed value.
Programmable DC Electronic Loads
8500B Series
6
www.bkprecision.com
Specifications
Model 8542B 8500B 8502B 8510B 8514B
Input ratings
Input voltage 0 to 150 V 0 to 150 V 0 to 500 V 0 to 120 V 0 to 120 V
Input current
Low 0 to 3 A 0 to 3 A 0 to 3 A 0 to 12 A 0 to 24 A
High 0 to 30 A 0 to 30 A 0 to 15 A 0 to 120 A 0 to 240 A
Input power 150 W 300 W 300 W 600 W 1500 W
Minimum operating voltage
Low 0.25 V at 3 A 0.14 V at 3 A 0.6 V at 3 A 0.2 V at 12 A 0.25 V at 24 A
High 2.5 V at 30 A 1.4 V at 30 A 3 V at 15 A 2 V at 120 A 2.5 V at 240 A
CV mode
Range
Low 0.1 to 18 V 0.1 to 50 V 0.1 to 18 V
High 0.1 to 150 V 0.1 to 500 V 0.1 to 120 V
Resolution
Low 1 mV
High 10 mV
Accuracy
Low ±(0.05% + 0.02% FS)
High ±(0.05% + 0.025% FS)
CC mode
Range
Low 0 to 3 A 0 to 3 A 0 to 12 A 0 to 24 A
High 0 to 30 A 0 to 15 A 0 to 120 A 0 to 240 A
Resolution
Low 0.1 mA 1 mA 1 mA
High 1 mA 10 mA 10 mA
Accuracy
Low ±(0.05% + 0.05% FS)
High ±(0.05% + 0.05% FS)
CR mode
Range
Low 0.05 Ω to 10 Ω 0.3 Ω to 10 Ω 0.05 Ω to 10 Ω 0.05 Ω to 10 Ω
High 10 Ω to 7.5 kΩ 10 Ω to 7.5 kΩ 10 Ω to 7.5 kΩ 10 Ω to 7.5 kΩ
Resolution 16 bit
Accuracy
Low 0.01% + 0.08 S (0.01% + 12.5 Ω)
High 0.01% + 0.0008 S (0.01% + 1250 Ω)
CW mode
Range 150 W 300 W 300 W 600 W 1500 W
Resolution 10 mW 10 mW 10 mW 10 mW 10 MW
Accuracy ±(0.2% + 0.2% FS) ±(0.1% + 0.1% FS) ±(0.2% + 0.2% FS)
Transient mode (CC mode)
T1 & T2
(1)
50 µs to 3600 s/Resolution: 1 µs 100 µs to 3600 s/Resolution: 1 µs
Accuracy 5 µs ± 100 ppm 10 µs ± 100 ppm
Slew rate
(2)
Low 0.0001 to 0.2 A/µs 0.0001 to 0.2 A/µs 0.001 to 0.2 A/µs 0.001 to 0.3 A/µs
High 0.001 to 1 A/µs 0.001 to 0.8 A/µs 0.001 to 0.4 A/µs 0.01 to 0.8 A/µs
Note: All specifications apply to the unit after a temperature stabilization time of 30 minutes over an ambient temperature range of 23 °C ± 5 °C.
(1) Fast pulse trains with large transitions may not be achievable.
(2) The slew rate specifications are not warranted but are descriptions of typical performance. The actual transition time is defined as the time for the input to change from 10% to
90%, or vice versa, of the programmed current values. In case of very large load changes, e.g. from no load to full load, the actual transition time will be larger than the
expected time. The load will automatically adjust the slew rate to fit within the range (high or low) that is closest to the programmed value.
Table 6.2 Slew Rate
(1)Fast pulse trains with large transitions may not be achievable.
(2) The slew rate specications are not warranted but are descriptions of typical performance. The
actual transition time is dened as the time for the input to change from 10% to 90%, or vice versa, of the
programmed current values. In case of very large load changes, e.g. from no load to full load, the actual
transition time will be larger than the expected time. The load will automatically adjust the slew rate to t
within the range (high or low) that is closest to the programmed value
These parameters correspond to the Rise Time / Fall Time which dene the current slew rate of the load
as it changes to a new programmed value. The programmed slew rate takes eect immediately when
set, so if the transient or triggered modes are active, it will apply immediately.
Current slew rate is dened as the change in current over time. A programmable slew rate allows a
controlled transition from one load setting to another. The actual transition time is dened as the time for
the input to change from 10% to 90%, or 90% to 10% of the programmed current values.
Between the 10% and 90% region, the slew rate can be measured by observing the steepest slope
portion. In case of very large load changes, e.g. from no load to full load, the actual transition time
will be larger than the expected (measured) time. For this reason, the rmware allows the user to
program slew rate values outside of the specied slew rate ranges. The minimum transition time for
all programmable slew rates is limited in cases where the transition from one setting to another is very
small, due to bandwidth limitations of the load.

BK Precision 8500B Series Specifications

General

Brand	BK Precision
Model	8500B Series
Category	Test Equipment
Language	English