{"id":2204,"date":"2025-03-12T09:00:00","date_gmt":"2025-03-12T14:00:00","guid":{"rendered":"https:\/\/www.gas-sensing.com\/news\/?p=2204"},"modified":"2025-03-03T10:40:53","modified_gmt":"2025-03-03T16:40:53","slug":"os-4-ozone-switch-precision-ozone-monitoring-and-control","status":"publish","type":"post","link":"https:\/\/www.gas-sensing.com\/news\/os-4-ozone-switch-precision-ozone-monitoring-and-control\/","title":{"rendered":"OS-4 Ozone Switch: Precision Ozone Monitoring and Control"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The <strong>OS-4 Ozone Switch<\/strong> is a powerful yet compact ozone detection and control device designed for <strong>industrial applications<\/strong>. Featuring a <strong>remote-mount ozone sensor (SM-7)<\/strong>, it allows for ozone detection up to <strong>100 meters away<\/strong> from the base unit. This ensures accurate readings while keeping the main device outside high-ozone environments. The <strong>electrochemical sensor (SM-EC)<\/strong> provides precise monitoring and control, making it ideal for industrial ozone applications, including <strong>HVAC systems, food storage, and ozone generator control<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Key Features of the OS-4 Ozone Switch<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Remote Sensor Capability<\/strong> \u2013 The <strong>SM-7 sensing module<\/strong> connects to the OS-4 via an included wire and can be mounted up to <strong>100 meters away<\/strong>.<\/li>\n\n\n\n<li><strong>Electrochemical Sensor for Improved Accuracy<\/strong> \u2013 The <strong>SM-EC sensor chip<\/strong> ensures reliable ozone measurements with reduced cross-sensitivity to VOCs and other gases.<\/li>\n\n\n\n<li><strong>Easy-to-Read LCD Display<\/strong> \u2013 Shows real-time <strong>ozone levels and equipment control status<\/strong>.<\/li>\n\n\n\n<li><strong>Thermostat-Like Control<\/strong> \u2013 Automatically <strong>activates ozone generators or alarms<\/strong> based on adjustable ozone concentration set-points.<\/li>\n\n\n\n<li><strong>User-Friendly Installation<\/strong> \u2013 Requires minimal setup and adjustments.<\/li>\n\n\n\n<li><strong>Pre-Calibrated Replaceable Sensor<\/strong> \u2013 The <strong>SM-EC sensor chip<\/strong> can be easily swapped without recalibration.<\/li>\n\n\n\n<li><strong>Temperature and Humidity Compensation<\/strong> \u2013 Ensures accurate readings in various environmental conditions.<\/li>\n\n\n\n<li><strong>Multiple Power Options<\/strong> \u2013 Operates on <strong>12-24 VDC<\/strong> or <strong>AC adapters available worldwide<\/strong>.<\/li>\n\n\n\n<li><strong>Alarm Integration<\/strong> \u2013 Can be used as an <strong>ozone leak alarm<\/strong> or <strong>failure alarm<\/strong> for all sizes of ozone generators.<\/li>\n\n\n\n<li><strong>Multiple Output Options<\/strong> \u2013 <strong>0-2V, 4-20mA, and RS-232 digital output<\/strong> for seamless integration with data loggers and monitoring systems.<\/li>\n\n\n\n<li><strong>Programmable Alarm Set-Points<\/strong> \u2013 Set customizable ozone concentration thresholds for control and alerts.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Typical Applications<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The OS-4 is widely used in <strong>industrial and environmental applications<\/strong> where precise ozone monitoring and control are required:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Food and Agriculture<\/strong> \u2013 Monitor ozone levels in <strong>fruit and vegetable storage areas<\/strong> to preserve freshness.<\/li>\n\n\n\n<li><strong>HVAC Systems<\/strong> \u2013 Ensure safe and efficient ozone levels in <strong>ozonated HVAC systems<\/strong>.<\/li>\n\n\n\n<li><strong>Ozone Generator Control<\/strong> \u2013 Automatically adjust ozone output in industrial <strong>odor control, water treatment, and sterilization applications<\/strong>.<\/li>\n\n\n\n<li><strong>Ozone Leak &amp; Failure Alarm<\/strong> \u2013 Detect leaks and prevent unsafe ozone exposure in <strong>ozone treatment facilities<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>OS-4 Technical Specifications<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Specification<\/strong><\/th><th><strong>Details<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Detection Range<\/strong><\/td><td><strong>0.03-20 ppm<\/strong> (Electrochemical sensor)<\/td><\/tr><tr><td><strong>Accuracy<\/strong><\/td><td>10-15% (Application dependent)<\/td><\/tr><tr><td><strong>Response Time<\/strong><\/td><td>Immediate<\/td><\/tr><tr><td><strong>Temperature &amp; Humidity<\/strong><\/td><td>5-40\u00b0C, 20-95% RH<\/td><\/tr><tr><td><strong>Measurement Principle<\/strong><\/td><td>Electrochemical Sensor<\/td><\/tr><tr><td><strong>Display<\/strong><\/td><td>LCD screen with indicator lights<\/td><\/tr><tr><td><strong>Power Requirements<\/strong><\/td><td>12-24 VDC (AC adapter available)<\/td><\/tr><tr><td><strong>Output Control<\/strong><\/td><td>SPDT non-latching relay (5A, 250VAC)<\/td><\/tr><tr><td><strong>Alarm Indicators<\/strong><\/td><td>Green LED (Instrument On), Yellow LED (&gt;0.1 ppm warning), Red LED (Ozone Generator On)<\/td><\/tr><tr><td><strong>Analog Outputs<\/strong><\/td><td>0-2V, 4-20mA<\/td><\/tr><tr><td><strong>Digital Output<\/strong><\/td><td>RS-232<\/td><\/tr><tr><td><strong>Housing<\/strong><\/td><td>Flame-resistant ABS with mounting ears<\/td><\/tr><tr><td><strong>Dimensions<\/strong><\/td><td>127 \u00d7 64 \u00d7 42 mm (5 \u00d7 2.5 \u00d7 1.625 in)<\/td><\/tr><tr><td><strong>Weight<\/strong><\/td><td>200 g (7 oz)<\/td><\/tr><tr><td><strong>Recommended Use<\/strong><\/td><td>Industrial applications \u2013 Not recommended for human safety monitoring<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>SM-EC Replacement Sensor: Easy &amp; Cost-Effective Calibration<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Unlike traditional ozone sensors requiring frequent recalibration, the <strong>OS-4<\/strong> uses the <strong>SM-EC sensor chip<\/strong>, which is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pre-calibrated<\/strong> for plug-and-play replacement.<\/li>\n\n\n\n<li><strong>Cost-effective<\/strong>, reducing long-term maintenance expenses.<\/li>\n\n\n\n<li><strong>Designed for high-humidity environments<\/strong>, minimizing interference from VOCs or other gases.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>OS-4 vs. Previous Models<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>OS-4 now exclusively uses the SM-7 sensor module<\/strong> with the <strong>SM-EC sensor chip<\/strong>.<\/li>\n\n\n\n<li>Older <strong>SM-6 sensors with SM-X replacement chips<\/strong> are no longer available.<\/li>\n\n\n\n<li>If upgrading from an older system, you will need to purchase the <strong>new SM-7 sensor module<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Remote Sensor Capabilities: Extendable for Large-Scale Applications<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">By default, the <strong>OS-4 comes with a 6-foot cable<\/strong> connecting the OS-4 base unit and the SM-7 sensor. This allows for <strong>installation in a separate room<\/strong> for safety and convenience.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For <strong>longer distances<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Standard telephone wire<\/strong> works up to <strong>100 feet<\/strong>.<\/li>\n\n\n\n<li>For <strong>100-328 feet<\/strong>, use <strong>shielded 22-gauge wire<\/strong>.<\/li>\n\n\n\n<li>For <strong>distances over 328 feet<\/strong>, an <strong>18-gauge shielded cable<\/strong> has been successfully tested up to <strong>1,000 feet<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If you need help setting up an <strong>extended remote sensor<\/strong>, contact us for expert assistance.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Wireless Monitoring &amp; Data Logging Kit<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Upgrade your <strong>OS-4 Ozone Switch<\/strong> with a <strong>Wireless Monitoring &amp; Data Logging Kit<\/strong>, allowing for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Remote access to ozone levels<\/strong> via an internet connection.<\/li>\n\n\n\n<li><strong>Instant text and email alerts<\/strong> when ozone levels exceed safe limits.<\/li>\n\n\n\n<li><strong>Data logging for compliance and safety records<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why Choose the OS-4 Ozone Switch?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>OS-4 Ozone Switch<\/strong> is the perfect <strong>ozone control and monitoring solution<\/strong> for <strong>industrial applications<\/strong> requiring:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Accurate, remote ozone detection<\/strong> up to <strong>100 meters away<\/strong><br><strong>Automated control<\/strong> of <strong>ozone generators, alarms, and ventilation systems<\/strong><br><strong>User-friendly, plug-and-play installation<\/strong><br><strong>Cost-effective maintenance<\/strong> with <strong>pre-calibrated, replaceable sensors<\/strong><br><strong>Multiple integration options<\/strong> with <strong>analog and digital outputs<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For those in <strong>food storage, HVAC, water treatment, or industrial ozone control<\/strong>, the <strong>OS-4 is a powerful, precise, and reliable solution<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You can find this product here: <a href=\"https:\/\/www.gas-sensing.com\/os4-ozone-monitor.html\" data-type=\"link\" data-id=\"https:\/\/www.gas-sensing.com\/os4-ozone-monitor.html\">https:\/\/www.gas-sensing.com\/os4-ozone-monitor.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The OS-4 Ozone Switch is a powerful yet compact ozone detection and control device designed for industrial applications. Featuring a remote-mount ozone sensor (SM-7), it [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":2205,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[22,25,34],"class_list":["post-2204","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-gas-monitoring","tag-gas-safety","tag-gas-sensing-product"],"_links":{"self":[{"href":"https:\/\/www.gas-sensing.com\/news\/wp-json\/wp\/v2\/posts\/2204","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gas-sensing.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gas-sensing.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gas-sensing.com\/news\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gas-sensing.com\/news\/wp-json\/wp\/v2\/comments?post=2204"}],"version-history":[{"count":1,"href":"https:\/\/www.gas-sensing.com\/news\/wp-json\/wp\/v2\/posts\/2204\/revisions"}],"predecessor-version":[{"id":2206,"href":"https:\/\/www.gas-sensing.com\/news\/wp-json\/wp\/v2\/posts\/2204\/revisions\/2206"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gas-sensing.com\/news\/wp-json\/wp\/v2\/media\/2205"}],"wp:attachment":[{"href":"https:\/\/www.gas-sensing.com\/news\/wp-json\/wp\/v2\/media?parent=2204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gas-sensing.com\/news\/wp-json\/wp\/v2\/categories?post=2204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gas-sensing.com\/news\/wp-json\/wp\/v2\/tags?post=2204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}