35020026

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The 35020026 belongs to the group of monitoring devices, most specifically devices for measuring current and voltage, and then providing relay output. It has various applications in commercial, industrial, and residential settings.

This specific model is a 2-in-1 system capable of both AC/DC current and AC/DC voltage measurement, with relays that are rated to 8 amps and a robust 11-bit A/D convertor. It is capable of monitoring over-voltage and under-voltage for most commonly used AC/DC voltage ranges. It is also equipped with a time delay system for removing false spikes from current readings.

The most prominent use of the 35020026 is as a current and voltage sensor/monitor in situations where reliability and accuracy are essential, since its 11-bit A/D convertor provides a high resolution of 1/2048th of the input measurement and is able to process and measure up to 256 kHz cycle time with a minimum resolution of 1/256th cycle.

It has various applications, from controlling motor speed and monitoring loads, to preventing over-heating in automotive, UPS, and industrial equipment systems, to ensuring electricity supply is maintained at a fixed voltage level by separating household electric circuits. Its outputs can also be used for sound and light alarm signaling in the event of an overload, over/under voltage, or over/under temperature.

The 35020026 also features self-diagnostic features to ensure its monitoring values are always accurate and reliable. It is able to recognize whether a voltage or current leads is open or shorted by monitoring VL and VC terminals before enabling the relay outputs, and can also detect any abnormal signals before energizing or responding to a control signal.

The working principles of the 35020026 are relatively simple: when input voltage or current is within the preset limits, the monitoring output turns on. When the input exceeds the preset limits (overvoltage, undervoltage, or overload) the monitoring output will turn off, one of the relays (designated as NO or NC) will open or close, and an audible alarm may be triggered if applicable. When the condition returns to normal, the monitoring output will be reactivated. It is also capable of “latched” output, where the output stays active even when the condition is within normal range; only via a control signal can it be reset.

The 35020026 is a reliable and practical monitor/current and voltage sensor, that can be useful for a wide range of monitoring applications. It offers several desirable features, such as its high resolution A/D convertor, time delay system, and self-diagnostic capabilities, making it a great choice for sensing and monitoring elements in large and small-scale applications.

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