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ES51950 Datasheet(PDF) 10 Page - Cyrustek corporation |
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ES51950 Datasheet(HTML) 10 Page - Cyrustek corporation |
10 / 32 page v2.3 10/06/25 10 ES51950(5000counts) Dual Display/Cap The semi-auto calibration scheme supports the following seven measurement modes. When CAL_EN pin is active, set the proper function switches and push SEL key to choose the target measurement mode. When mode is selected, the LCD segment of Unit at related measurement will be blinking. Mode Default range for CAL Remark DC Voltage measurement AC Voltage measurement 5.000V Accuracy of other ranges is guaranteed by external resistor DC Current measurement AC Current measurement 50.00A or 500.0A or 5000A Lower range in auto ACA mode DC uA measurement 500uA or 5000uA - Capacitor measurement 50.00nF Set CAL_nF to V- Temperature measurement 500.0oC or 5000 oC Lower range in Auto Temperature mode After calibration procedure is finished, set ES51950 to OFF-state and set CAL_EN to DGND to return to normal mode operation after re-power on. 2.2. Voltage Measurement A re-configurable voltage divider automatically provides a suitable range in voltage measurement mode. The following table summarizes the full-scale ranges in each configuration. Configuration Full Scale Range Divider Ratio Resister Connection 1VR1 500.0mV 1 VR1 (10MΩ) VR2 5.000V 1/10 VR2 (1.111MΩ) VR3 50.00V 1/100 VR3 (101KΩ) VR4 500.0V 1/1000 VR4 (10.01KΩ) VR5 1000V 1/10000 VR5 (1KΩ) Note: 1. 500.0mV range only exists in manual mode. 2.2.1 CE selection & high voltage (HV) indication ES51950 has a CE selection feature archived by configuring the pin CESEL. In automatic voltage mode, ES51950 will show OL when the voltage is over than the overflow level. If CESEL is connected to V- or DGND, ES51950 will have a 610.0V or 1010V overflow level in voltage mode relatively.. The configuration of CESEL is listed below. For fully automatic voltage modes: CESEL DCV ACV V- 610V 610V DGND or floating 1010V 1010V |
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