{"product_id":"single-phase-ac-voltage-sensor-module-zmpt101b","title":"Single Phase AC Voltage Sensor Module - ZMPT101B","description":"\u003cp data-start=\"79\" data-end=\"588\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe Single Phase AC Voltage Sensor Module – ZMPT101B is an isolated analog voltage sensing module designed for measuring and monitoring single-phase AC voltage in energy monitoring, power measurement, automation, and microcontroller-based projects. The module is built around the ZMPT101B precision voltage transformer and commonly includes an LM358-based signal-conditioning circuit to provide a proportional analog waveform suitable for ADC measurement. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"590\" data-end=\"1092\"\u003eThe module uses a miniature voltage transformer to provide galvanic isolation between the high-voltage AC input and the low-voltage signal-processing side. The isolated AC signal is amplified and biased by the onboard circuitry, producing an analog waveform centered around approximately half of the module supply voltage. This allows a microcontroller ADC to sample both positive and negative portions of the original AC waveform as a unipolar voltage signal. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1094\" data-end=\"1455\"\u003eAn onboard multi-turn potentiometer allows the output signal amplitude to be adjusted according to the input voltage and ADC range. Common module versions are used for measuring AC voltages up to approximately 250V RMS at 50Hz or 60Hz, making them suitable for mains voltage monitoring and energy-metering projects. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1457\" data-end=\"1724\"\u003eThe module can be interfaced with Arduino, ESP32, STM32, Raspberry Pi Pico, RP2040, PIC, AVR, and other controllers with suitable analog input capability. Proper calibration in software is required to convert sampled ADC values into accurate RMS voltage measurements.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"etycth\" data-start=\"1731\" data-end=\"1748\" class=\"PDq2pG_selectionAnchorContainer\"\u003eKey Features\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul data-start=\"1750\" data-end=\"2563\"\u003e\n\u003cli data-section-id=\"1ymo92q\" data-start=\"1750\" data-end=\"1800\"\u003eDesigned for single-phase AC voltage measurement\u003c\/li\u003e\n\u003cli data-section-id=\"141k2i7\" data-start=\"1801\" data-end=\"1854\"\u003eBased on the ZMPT101B precision voltage transformer\u003c\/li\u003e\n\u003cli data-section-id=\"199cj9p\" data-start=\"1855\" data-end=\"1894\"\u003eGalvanically isolated voltage sensing\u003c\/li\u003e\n\u003cli data-section-id=\"12dvx74\" data-start=\"1895\" data-end=\"1963\"\u003eMeasures AC voltage up to approximately 250V RMS on common modules\u003c\/li\u003e\n\u003cli data-section-id=\"1iaypku\" data-start=\"1964\" data-end=\"2003\"\u003eSuitable for 50Hz and 60Hz AC systems\u003c\/li\u003e\n\u003cli data-section-id=\"1pnby0v\" data-start=\"2004\" data-end=\"2050\"\u003eProvides proportional analog waveform output\u003c\/li\u003e\n\u003cli data-section-id=\"17spjqw\" data-start=\"2051\" data-end=\"2111\"\u003eOnboard LM358-based signal conditioning on common versions\u003c\/li\u003e\n\u003cli data-section-id=\"1a31o0p\" data-start=\"2112\" data-end=\"2141\"\u003eAdjustable output amplitude\u003c\/li\u003e\n\u003cli data-section-id=\"1szmsjm\" data-start=\"2142\" data-end=\"2180\"\u003eMulti-turn calibration potentiometer\u003c\/li\u003e\n\u003cli data-section-id=\"1h44qtw\" data-start=\"2181\" data-end=\"2236\"\u003eOutput waveform biased around half the supply voltage\u003c\/li\u003e\n\u003cli data-section-id=\"1fxa87q\" data-start=\"2237\" data-end=\"2264\"\u003eCompact PCB module design\u003c\/li\u003e\n\u003cli data-section-id=\"6mv1kb\" data-start=\"2265\" data-end=\"2302\"\u003ePower status LED on common versions\u003c\/li\u003e\n\u003cli data-section-id=\"1bykmyu\" data-start=\"2303\" data-end=\"2351\"\u003eHigh transformer accuracy and good consistency\u003c\/li\u003e\n\u003cli data-section-id=\"we70px\" data-start=\"2352\" data-end=\"2390\"\u003eSuitable for RMS voltage calculation\u003c\/li\u003e\n\u003cli data-section-id=\"cqk1ji\" data-start=\"2391\" data-end=\"2438\"\u003eEasy connection to microcontroller ADC inputs\u003c\/li\u003e\n\u003cli data-section-id=\"19z9nmc\" data-start=\"2439\" data-end=\"2502\"\u003eSuitable for energy monitoring and power measurement projects\u003c\/li\u003e\n\u003cli data-section-id=\"1cbykk8\" data-start=\"2503\" data-end=\"2563\"\u003eUseful for overvoltage and undervoltage monitoring systems\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Roboracter","offers":[{"title":"Default Title","offer_id":46820873764918,"sku":"KJ6RXV3K84","price":119.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/0731\/2694\/files\/ZMPT101B-single-phase-AC-voltage-sensor-4.png?v=1783543658","url":"https:\/\/roboracter.in\/products\/single-phase-ac-voltage-sensor-module-zmpt101b","provider":"Roboracter","version":"1.0","type":"link"}