Application measurement EN function is turned off, there is a possibility of negative measurement values, which can affect the judgment of comparison results. Click on [MEA] -> Absolute in sequence to set the absolute value, as shown in the figure. Press the corresponding soft key again to complete the function of setting absolute values. Figure 6-6 Set absolute value function 6.2 Comparator function The comparator function refers to the function of comparing pre-set critical values with measured values, determining whether the measured values meet the judgment criteria, and displaying and outputting them. The comparison methods for thresholds include two methods:
setting upper and lower limits, and setting baseline values and percentages. As a comparator result, in addition to displaying Hi, In, Lo pages and sounding the buzzer, it can also be output through the EXT I/O terminal. There are two comparison modes: Auto and Manual, with the default being Auto mode. Automatic mode: After setting to automatic mode and enabling the comparator function, always output the comparison results of the comparator. Manual mode: After setting to manual mode and enabling the comparator function, the comparison result is only output when the MANU input of EXT I/O is on. Note: When the comparator is turned on, automatic range cannot be used.
6.2.1 Comparator function settings Click the [Comp] button to jump to the comparator settings page, as shown in the figure. HBT3000 series user manual Copyright © Qingdao Hantek Electronic Co., LTD 28