Vitrek's DL Series Electronic Loads are available in a multiple configurations to meet your unique application requirements. No other electronic DC load on the market today is easier to use. Equipped with a full color LCD touchscreen display, the unit can quickly be set up for your next test. In addition, the DL is equipped with a comprehensive self-test that ensures that all loading and measurement circuitry is functioning properly.
Extremely Flexible in a Variety of Applications
The DL Series is equally at home generating kW, W, mW or µW loading. Whether you are performing tests for LED drivers, batteries or battery chargers, the DL Series is the right choice for these applications.
Maximum Accuracy - Maximum Features
The unit is fully featured with transient and wide band non-linear loading capabilities along with the additional feature of sweep capability. The DL Series Electronic Load provides high accuracy measurements (± 0.05%) of voltage and current with sweep steps as short as 20µs and pulsed loading up to 100 kHz. Units are fully configurable for loading riding and falling edge controls and soft-start capabilities. The DL Series provides excellent transient performance in timing and waveshape with the ability for the user to view the current and voltage waveforms using the internal scope. The device provides fully protected short loading with automatic current and power limiting.
Unequaled Visibility of Test Results
The DL Series provides graphical X/Y plotting of V vs I and V vs P characteristics using swept loading. In addition, the unit has a historical data logging capability, both graphical and numerical for additional test analysis and evaluation.
Flexible Integration in a Compact Package
The DL Series is just 5" high, 8.5" wide and 13" deep, allowing easy integration into any test bench. The unit provides a variety of interfaces including LAN, USB Device & Host and Digital I/O. In addition, multiple units may be used in parallel for static higher power and current loading. No other manufacturer offers more features than Vitrek - at a price that easily fits in your budget.
Full range of voltages, user configurable resistance from 1mΩ upwards
CV Loading Accuracy
0.04%+1mV
Sense Loading
Nominally 923kΩ, automatically included in all measurement results and all loading except open
CURRENT
Min. Current
10µA
60µA
20µA
120µA
50µA
250µA
Max. Current
>1s
21A
42A
84A
100ms
30A
60A
120A
<10ms
30A
60A
120A
Current (CC) Accuracy
0.05%+5µA
0.05%+30µA
0.05%+10µA
0.05%+60µA
0.05%+25µA
0.05%+125µA
POWER
Max. Power
>1s
125W
250W
500W
100ms
160W
320W
640W
10ms
380W
325W
760W
650W
1.5kW
1.3kW
1ms
1.15kW
950W
2.3kW
1.9kW
4.6kW
3.8kW
<100µs
3.6kW
2.4kW
7.2kW
4.8kW
14.4kW
9.6kW
Power (CW) Accuracy
0.075%+25µW
0.075%+150µW
0.075%+50µW
0.075%+300µW
0.075%+125µW
0.075%+625µW
RESISTANCE
Resistive Loading
42mΩ-900kΩ
90mΩ-900kΩ
21mΩ-700kΩ
45mΩ-700kΩ
10.5mΩ-500kΩ
25mΩ-500kΩ
Resistive (CR) Accuracy
0.1%
Capacitive Loading
0.3µF
LOADING MODES and TIMING
Loading Modes (Level A and Level B)
Basic (CV+CR+CC+CW in any combination), single or arbitrary sequence (up to 100 independent steps) V-I Table Lookup (interpolated, up to 100 points) Linear or logarithmic swept current or power, up to 500 steps, P1->P2 or P1->P2->P1 OCP or OPP Test (automatically terminated current or power sweep)
Loading Timing Modes
Continuous Level A or B (any combination of the above modes) Pulsed A/B (any combination of the above modes except OCP or OPP) Interleaved A/B (any combination of the above modes except OCP or OPP)
Load Timing
Continuous, or 5µs to 10000s pulsed/stepped
Non-linear Loading Bandwidth
Typically >35kHz with ability to reduce bandwidth
Physical
Size
5in high x 8.5in wide x 13in deep
Weight
Approx. 8lb (unpacked, without external power supply).
Power
External 12Vdc, 60VA power brick
Display
5in diagonal, 800x480 pixel color LCD with touchscreen.
Adjustment Wheel
Indented encoder provided on front panel allowing for the "live" adjustment of the loading levels or timings.
Rack Mounting
Rack mounts kits available for mounting one or two units in a 19in wide rack.
Terminals
Front: Sheathed banana 4mm sockets, suitable for up to 30A continuous loading.
Rear
Approx. 1in square x 0.06in blade type terminals (fully specified). Safety cover provided.
Voltage Sense
wire entry sprung sockets in rear panel
Environmental
Warm Up Time
20 seconds
Full Specifications
15 minutes
Temperature
Operating: 0 to +40C, at 10 to 80%RH (non-condensing) Automatically reduces loading if overheating detected.
Storage
-20C to +70C, at 5 to 95%RH (non-condensing)
Altitude
0 to 2000m ASL
Cooling
Variable speed forced air. Intake vents on both sides and in the bottom, exhaust vents in the rear. Specifications valid with any one set of intake vents impeded. At least 6 inches of clear space must be provided behind the rear panel and two inches on the side of intake vents.