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ES233 Datasheet(PDF) 8 Page - Cyrustek corporation |
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ES233 Datasheet(HTML) 8 Page - Cyrustek corporation |
8 / 37 page V 2.2 8 2015/12/15 ES233 4000 Counts DMM 1.2. Voltage Measurement A re-configurable voltage divider automatically provides a suitable range in voltage measurement mode. 400.0mV range is independent and manual mode. It takes input signal from mVin pin. The following table summarizes the Full-Scale ranges in each configuration. Configuration Full Scale Range Divider Ratio Resister Connection Input Pin VR1 400.0mV 1 - mVin V.S. SGND VR2 4.000V 1/10 VR2 (1.111MΩ) VR1 V.S. SGND VR3 40.00V 1/100 VR3 (101KΩ) VR1 V.S. SGND VR4 400.0V 1/1000 VR4 (10KΩ) VR1 V.S. SGND VR5 1000V 1/10000 VR5 (1KΩ) VR1 V.S. SGND The VST pin is used to control the voltage start range from 4.000V or 400.0V, refer to the table. VST V+ DGND Floating V- Initial state 400.0V 4.000V 400.0V 4.000V The ES233 provide two types of the hazardous live voltage warning by different condition. SEL2 V+ DGND Floating V- DCV 35V 70V ACV 16V 33V When the voltage measured exceeds the level defined, the buzzer generates 2KHz beep and ALARM (pin 57) drive high output (V+ level) periodically. It can remind the user to notice the hazardous voltage. The buzzer sound warning could be cancelled by DIS (pin94). DIS V+ DGND Floating V- Buzzer Disable Enable |
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