{"id":1873,"date":"2021-10-30T06:09:00","date_gmt":"2021-10-30T11:39:00","guid":{"rendered":"https:\/\/tutorials.probots.co.in\/?p=1873"},"modified":"2021-11-29T01:29:01","modified_gmt":"2021-11-29T06:59:01","slug":"https-www-probots-co-in-4-20ma-lcd-digital-signal-generator-html","status":"publish","type":"post","link":"https:\/\/tutorials.probots.co.in\/https-www-probots-co-in-4-20ma-lcd-digital-signal-generator-html\/","title":{"rendered":"Getting Started with 4 &#8211; 20mA Signal Generator Part-1"},"content":{"rendered":"\n<h2 id='what-is-a-4-to-20ma-signal'  id=\"boomdevs_1\" ><span class=\"has-inline-color has-black-color\">What is a 4 to 20ma Signal?<\/span><\/h2>\n\n\n\n<p><span class=\"has-inline-color has-black-color\">4-20mA Signal is commonly used to connect process signals to controllers in industry-grade applications and is a common signal to convey the sensor data. It is basically a current signal which varies from 4 to 20mA depending on the sensor output. Current is used to transmitting the sensor signal as voltage signals are susceptible to noise and difficult to interface with Microcontroller\/PLCs operating on different voltages.<\/span><\/p>\n\n\n\n<p><span class=\"has-inline-color has-black-color\">For instance, a temperature sensor with 4 to 20ma will output a 4ma signal for 0<a href=\"https:\/\/www.degreesymbol.net\/\">\u00b0<\/a>C and 20mA for 100<a href=\"https:\/\/www.degreesymbol.net\/\">\u00b0<\/a>C. The Microcontroller\/PLC can measure this current and get the temperature.<\/span><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"512\" height=\"384\" src=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4-20ma.jpg\" alt=\"\" class=\"wp-image-2070\" srcset=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4-20ma.jpg 512w, https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4-20ma-300x225.jpg 300w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><figcaption><span class=\"has-inline-color has-black-color\">Testing of 4-20ma  signal Generator using a multimeter<\/span><\/figcaption><\/figure><\/div>\n\n\n\n<h2 id='why-are-current-signals-used-over-voltage-digital-signals'  id=\"boomdevs_2\" ><span class=\"has-inline-color has-black-color\">Why are current signals used over voltage\/digital signals?<\/span><\/h2>\n\n\n\n<ul><li>A 4-20ma signal works well even through long wires. In industrial environments, sensors and controllers may be installed in different locations which require communication over long distances.<\/li><li>It is simple to connect,configure,and requires less wiring.<\/li><li>It is easy to troubleshoot for common problems like broken wires, short circuits, etc.&nbsp;<\/li><li>It is able to provide communications over long distances where voltage drop might be an issue.<\/li><li>4-20 mA signal it is easy to scale and calculate the process parameters.<\/li><\/ul>\n\n\n\n<h2 id='where-is-this-4-to-20ma-signal-generator-used'  id=\"boomdevs_3\" ><span class=\"has-inline-color has-black-color\">Where is this 4 to 20ma Signal Generator used<\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4-20ma-signal.gif\" alt=\"\" class=\"wp-image-2068\" width=\"585\" height=\"329\"\/><figcaption><br><span class=\"has-inline-color has-black-color\">Bottom Right: Signal Generator is outputting a current signal. Left: Multimeter reading the output signal.<br><\/span><\/figcaption><\/figure><\/div>\n\n\n\n<p><span class=\"has-inline-color has-black-color\">This signal generator can be used to manually generate a 4 to 20mA signal. A knob on the module, lets users simulate a current signal. It is great if you want to do testing\/calibration\/etc without having to connect a live sensor.<\/span><\/p>\n\n\n\n<ul><li><span class=\"has-inline-color has-black-color\">This signal generator is used for calibration of 4-20mA signals..<\/span><\/li><li><span class=\"has-inline-color has-black-color\">Useful for testing\/calibrating the controller. Once the controller is working with the generator, we can then connect a live sensor and start working.<\/span><\/li><\/ul>\n\n\n\n<h2 id='technical-specifications'  id=\"boomdevs_4\" ><span class=\"has-inline-color has-black-color\">Technical Specifications:<\/span><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"512\" height=\"384\" src=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4-20ma-signal-genrator-1.jpg\" alt=\"\" class=\"wp-image-2071\" srcset=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4-20ma-signal-genrator-1.jpg 512w, https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4-20ma-signal-genrator-1-300x225.jpg 300w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><figcaption><span class=\"has-inline-color has-black-color\">Front panel view of 4-20mA signal Generator<\/span><\/figcaption><\/figure><\/div>\n\n\n\n<ul><li><span class=\"has-inline-color has-black-color\">Input Voltage :15V-30V<\/span><\/li><li><span class=\"has-inline-color has-black-color\">Output Range:4-20mA<\/span><\/li><li><span class=\"has-inline-color has-black-color\">Display mode: Real current value in mA \/ as percentage 0-100% \/ 0-50Hz<\/span><\/li><li><span class=\"has-inline-color has-black-color\">Sampling Resistance:Less than 500\u03a9<\/span><\/li><li><span class=\"has-inline-color has-black-color\">Output accuracy:\u00b10.5%<\/span><\/li><li><span class=\"has-inline-color has-black-color\">Display accuracy:0.01<\/span><\/li><\/ul>\n\n\n\n<p><strong><em><span class=\"has-inline-color has-black-color\"><font color=\"#1d1d1f\"><span style=\"background-color: rgb(240, 243, 245);\">Check <\/span><\/font>out our website <\/span><\/em><\/strong><a href=\"http:\/\/www.probots.co.in\"><strong><span class=\"has-inline-color has-black-color\"><em>www.probots.co<\/em><\/span><\/strong><\/a><strong><em><span class=\"has-inline-color has-black-color\">.in to find all the parts for your projects! We have 2000+ Electronic Modules, Sensors, and Components for all your electronics projects.<\/span><\/em><\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"220\" height=\"67\" src=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/probot.png\" alt=\"\" class=\"wp-image-2072\"\/><\/figure><\/div>\n\n\n\n<h2 id='how-to-use-this-signal-generator'  id=\"boomdevs_5\" ><span class=\"has-inline-color has-black-color\">How to use this signal generator?<\/span><\/h2>\n\n\n\n<p>You can purchase this 4-20mA signal generator here &#8211; <a href=\"https:\/\/www.probots.co.in\/4-20ma-lcd-digital-signal-generator.html\">Buy Now<\/a><\/p>\n\n\n\n<h2 id='connections'  id=\"boomdevs_6\" >C<span class=\"has-inline-color has-black-color\">onnections<\/span><\/h2>\n\n\n\n<p><span class=\"has-inline-color has-black-color\">The Signal Generator has 2 terminals for powering. The signal generator has to be connected in series with a 15-30V DC power supply. The connectors are nonpolarised<\/span><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"1000\" height=\"751\" src=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4to20-Signal-Generator-Part-1-.jpg\" alt=\"\" class=\"wp-image-2073\" srcset=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4to20-Signal-Generator-Part-1-.jpg 1000w, https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4to20-Signal-Generator-Part-1--300x225.jpg 300w, https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4to20-Signal-Generator-Part-1--768x577.jpg 768w, https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4to20-Signal-Generator-Part-1--750x563.jpg 750w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption><span class=\"has-inline-color has-black-color\">Wiring Diagram of 4-20mA signal generator <\/span><\/figcaption><\/figure><\/div>\n\n\n\n<p><span class=\"has-inline-color has-black-color\">On powering, the signal generator starts outputting a 4-20ma Signal, and the current value is shown on the display<\/span>.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"1000\" height=\"750\" src=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/tempsnip-1.jpg\" alt=\"\" class=\"wp-image-2076\" srcset=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/tempsnip-1.jpg 1000w, https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/tempsnip-1-300x225.jpg 300w, https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/tempsnip-1-768x576.jpg 768w, https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/tempsnip-1-750x563.jpg 750w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption><span class=\"has-inline-color has-black-color\">Wiring a Signal generator with a multimeter<\/span><\/figcaption><\/figure><\/div>\n\n\n\n<h2 id='how-to-use-menu-basic'  id=\"boomdevs_7\" ><span class=\"has-inline-color has-black-color\">How to use Menu(Basic)<\/span><\/h2>\n\n\n\n<ul><li><span class=\"has-inline-color has-black-color\">The generator has a knob which can be rotated to adjust the output current. Use the knob to set the desired output current. Turn Clockwise to increase current and anticlockwise to decrease the current.<\/span><\/li><\/ul>\n\n\n\n<div class=\"wp-block-image is-style-default\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"755\" height=\"649\" src=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/10\/knob.jpg\" alt=\"\" class=\"wp-image-1894\" srcset=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/10\/knob.jpg 755w, https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/10\/knob-300x258.jpg 300w, https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/10\/knob-750x645.jpg 750w\" sizes=\"(max-width: 755px) 100vw, 755px\" \/><figcaption><span class=\"has-inline-color has-black-color\">Rotate the Knob for mode setting <\/span><\/figcaption><\/figure><\/div>\n\n\n\n<ul><li><span class=\"has-inline-color has-black-color\">The knob can also be pressed to access the onboard settings menu. The module has several advanced features that can be accessed from the settings menu &#8211;<\/span><ul><li><span class=\"has-inline-color has-black-color\">Change the Knob Adjustment Sensitivity &#8211; Coase and Fine Adjustments Settings are available<\/span><\/li><li><span class=\"has-inline-color has-black-color\">Generate automatic time varying current signals<\/span><\/li><li><span class=\"has-inline-color has-black-color\">Generate 1Point or multipoint current signals<\/span><\/li><li><span class=\"has-inline-color has-black-color\">Select between 4-20 Signal or 0-20ma Signal<\/span><\/li><li><span class=\"has-inline-color has-black-color\">Select Display between Actual Current, Percentage of Current, etc<\/span><\/li><li><span class=\"has-inline-color has-black-color\">Set predefined current values and steps, instead of linearly varying current signal output.<\/span><\/li><\/ul><\/li><\/ul>\n\n\n\n<ul><li><span class=\"has-inline-color has-black-color\">To access settings, press and hold the knob for a few seconds and enter the password. Rotate clockwise for <strong>\u201c+\u201d,<\/strong> Rotate anticlockwise for<strong> \u201c-\u201d,<\/strong> Press the Knob to <strong>\u201cconfirm\u201d<\/strong>&nbsp;<\/span><\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"600\" height=\"414\" src=\"https:\/\/tutorials.probots.co.in\/wp-content\/uploads\/2021\/11\/4-20ma-.gif\" alt=\"\" class=\"wp-image-1977\"\/><figcaption><span class=\"has-inline-color has-black-color\"> 4-20mA signal Generator generating 4-20mA  signal<\/span><\/figcaption><\/figure><\/div>\n\n\n\n<p><span class=\"has-inline-color has-black-color\">Read Part 2 of this article which explains more features of this module here &#8211;<\/span><\/p>\n\n\n\n<p><span class=\"has-inline-color has-black-color\">All the components used in this article are readily available on our website.&nbsp;And also other interesting electronic components are there, Please visit <\/span><a href=\"https:\/\/www.probots.co.in\/\" data-type=\"URL\" data-id=\"https:\/\/www.probots.co.in\/\">https:\/\/www.probots.co.in<\/a><span class=\"has-inline-color has-black-color\">&nbsp;and also you can place it online, we can deliver it.&nbsp;images only for reference<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is a 4 to 20ma Signal? 4-20mA Signal is commonly used to connect process signals to controllers in industry-grade applications and is a common signal to convey the sensor data. It is basically a current signal which varies from 4 to 20mA depending on the sensor output. Current is used to transmitting the sensor&hellip;&nbsp;<a href=\"https:\/\/tutorials.probots.co.in\/https-www-probots-co-in-4-20ma-lcd-digital-signal-generator-html\/\" class=\"\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Getting Started with 4 &#8211; 20mA Signal Generator Part-1<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":2088,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","_ti_tpc_template_sync":false,"_ti_tpc_template_id":""},"categories":[3],"tags":[60,148,147],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/tutorials.probots.co.in\/wp-json\/wp\/v2\/posts\/1873"}],"collection":[{"href":"https:\/\/tutorials.probots.co.in\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tutorials.probots.co.in\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tutorials.probots.co.in\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/tutorials.probots.co.in\/wp-json\/wp\/v2\/comments?post=1873"}],"version-history":[{"count":34,"href":"https:\/\/tutorials.probots.co.in\/wp-json\/wp\/v2\/posts\/1873\/revisions"}],"predecessor-version":[{"id":2364,"href":"https:\/\/tutorials.probots.co.in\/wp-json\/wp\/v2\/posts\/1873\/revisions\/2364"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tutorials.probots.co.in\/wp-json\/wp\/v2\/media\/2088"}],"wp:attachment":[{"href":"https:\/\/tutorials.probots.co.in\/wp-json\/wp\/v2\/media?parent=1873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tutorials.probots.co.in\/wp-json\/wp\/v2\/categories?post=1873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tutorials.probots.co.in\/wp-json\/wp\/v2\/tags?post=1873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}