There are 4 models in the DL3000 load family: DL3021, DL3021A, DL3031, DL3031A
There are differences in the power and current levels as well as the advanced capabilities. Use this table to identify the best configuration for your application.
| DL3021 | DL3021A | DL3031 | DL3031A | |
| Total Power | 200 W | 200 W | 350 W | 350 W |
| Max Current | 40 A | 40 A | 60 A | 60 A |
| User Interface | Monochrome | Full Color | Monochrome | Full Color |
| Max Current Slew Rate | 2.5 A/μs Standard; 3 A/μs Optional | 3 A/μs Standard | 2.5 A/μs Standard; 5 A/μs Optional | 5 A/μs Standard |
| Max continuous mode Frequency | 15 kHz Standard; 30 kHz Optional | 30 kHz Standard | 15 kHz Standard; 30 kHz Optional | 30 kHz Standard |
| Readback Current Resolution | 1 mA Standard; 0.1 mA Optional | 0.1 mA Standard | 1 mA Standard; 0.1 mA Optional | 0.1 mA Standard |
| Digital I/O triggering | Optional | Standard | Optional | Standard |
| Ethernet Comm. | Optional | Standard | Optional | Standard |
Here is an example of the monochrome vs full colour user interface. The DL3000A models have the full colour interface. The DL3000 (non-A) models use monochrome and can NOT be upgraded to full colour.
The options are available to add to the DL3000 (non-A) models. These are software licenses that can be field upgraded at a later date as your application needs change. This future proofs your investment in RIGOL with a product that can grow with your test requirements. The option model numbers are:
| Optional Capability | Model Number |
| Max Current Slew Rate | SLEWRATE-DL3 |
| Max continuous mode Frequency | FREQ-DL3 |
| Readback Current Resolution | HIRES -DL3 |
| Digital I/O triggering | DIGITALIO-DL3 |
| Ethernet Comm. | LAN-DL3 |
