[Model Supported] DL3021,DL3021A,DL3031,DL3031A. [Latest Revision Date] 2020-12-01 [Updated Contents] v00.01.05.00.01 2020-12-01 - Repaired continuous CC mode, the frequency value will display 40KHz - Fixed the frequency setting error of con - The function of circuit short circuit protection button is added - Fixed the problem of setting width overrun in pul mode - Increased power protection function v00.01.05.00.00 2020-06-09 - Solved the problem of SCPI command setting frequency accuracy loss - Solved the problem that CR mode can set the resistance value to 0 ohm - Added the record option bar in the utility interface, which allows users to choose whether to record data after exiting the view mode - Added the function that users can automatically add 0 before the decimal point when entering decimals - Solved the problem of loop current overcharge when closing the channel switch - Added the function of the circuit short-circuit protection button v00.01.04.00.04 2019-3-06 - Improving the performance of overshort in CC mode - Improving the Slew Voltage Drop Perfomance - Increase the recording content of battery mode,"mAH" "wh" "time" - Modifyed the bug in slewrate - Increased SCPI commands for battery mode - Increased SCPI commands for OCP mode - Increased SCPI commands for OPP mode v00.01.02.00.02 2018-1-22 - Modified the problems arising from load sinking while being powered on in CR and CP modes. - Optimized the overshoot value in CR mode. - Modified the record data: originally, the number of the waveform points less than 400 was recorded as 1000, now it is modified to be recorded as Null. - Added the Von function in the CR mode and supported Von Latch. - Added the cut-off function in the battery discharge mode - Added the SCPI commands for the Sense function. - Modified the Record function in data recording, capable of recording the four parameters (V, I, R, and P) simultaneously. - Modified the List function in data recording, capable of recording the two parameters (V and I) simultaneously. - Modified the List operating status error in the SCPI command. v00.01.01.00.09 2017-08-014 - Optimize the waveform adjustment mode for Roll and Fast modes - Optimize Roll and Fast mode screenshots to support saved CSV format files - Roll mode to supports the waveform playback function - Roll mode to supports the waveform record function - Fast mode supports the selection of voltage and current curves - Support CC+CV function - Battery mode support W.H units - List mode show the results of the last loop after the run completes - List mode support the recording and playback function ( Thumb drive), save the measurement results of each cycle, save the file format to CSV - The SCPI command increases the waveform mode adjustment and the readback command of the waveform data v00.01.00.04.10 2017-04-24 - Released the first version officially [Previous Versions and Updated Contents]