Start using EN Figure 5-4 Measurement display interface 5.2 Zeroing To eliminate errors caused by the bias voltage of the instrument itself or the measurement environment, please perform zero adjustment before measurement. The measurement accuracy is specified after zeroing. Zero adjustment can also be performed on the 0ADJ terminal of EXT I/O. Click on the [0 ADJ] key, or click on [Utility] -> Cal in sequence. After entering the password, click on the [0 ADJ] soft key to execute zero adjustment. After successful zero adjustment, the interface will pop up as shown in the following figure.
If zero adjustment fails, please check if the short circuit is correct, and then perform zero adjustment until successful. Figure 5-5 Zeroing 5.3 Test abnormal output ⚫ When the test line is not connected to the test object, [------] is displayed on the screen, as shown in the following figure. In addition, an abnormal test signal (ERR) will be output from the EXTI/O terminal. Copyright © Qingdao Hantek Electronic Co., LTD HBT3000 series user manual 23