{"id":14613,"date":"2026-01-02T14:18:13","date_gmt":"2026-01-02T13:18:13","guid":{"rendered":"https:\/\/testnordic.se\/?post_type=product&#038;p=14613"},"modified":"2026-01-02T15:32:19","modified_gmt":"2026-01-02T14:32:19","slug":"winding-resistance-meter-rmo-m-series","status":"publish","type":"product","link":"https:\/\/testnordic.se\/en\/product\/winding-resistance-meter-rmo-m-series\/","title":{"rendered":"Winding Resistance Meter RMO-M Series"},"content":{"rendered":"<p><strong>For testing motor and generator <\/strong><\/p>\n<p>The motor\/generator winding resistance test is used to identify open windings, shorts between two windings, short to grounds, connection mistakes, or shorted turns. The RMO-M motor winding ohmmeter also has the capability of performing heat run test which will show a change in windings resistance with an increase of temperature. This is especially useful for testing rotating machines after manufacturing.<\/p>\n<p>The RMO-M is designed as an ideal aid in the preventive maintenance of electrical motors and generators. They are powerful (up to 50 A for RMO50M and up to 100 A for RMO100M), portable (8 kg), and generate DC current which is completely ripple-free. This makes measurement very precise with 0,1% accuracy. Windings problems that can be detected using RMO-M instruments are:<\/p>\n<ul>\n<li>Broken winding (open winding);<\/li>\n<li>Turn-to-turn short;<\/li>\n<li>Phase-to-phase short;<\/li>\n<li>Bad solder joints between the windings;<\/li>\n<li>Power circuit problems.<\/li>\n<\/ul>\n<p>Three voltage channels make measurement very easy since it is possible to obtain a value of all three winding resistances in one measurement. The three-channel measurement option significantly speeds up the measurement process and reduces the total testing time.<\/p>\n<p>DV-Win application software\u00a0enables control and monitoring of the test process steps, as well as saving and analyzing the results on a PC.<\/p>\n<p>&nbsp;<\/p>\n<p>Specification Highlights<\/p>\n<ul>\n<li>Test currents: 5 mA \u2013 100 A DC<\/li>\n<li>Lightweight: 8,0 kg \/ 17.6 lbs<\/li>\n<li>Measurement range: 0,1 \u00b5\u2126 &#8211; 1 k\u2126<\/li>\n<li>Accuracy: \u00b1 (0,1% rdg + 0,1% F.S.)<\/li>\n<li>Resolution: up to 0,1 \u00b5\u2126<\/li>\n<li>Three resistance measurement channels<\/li>\n<li>Automatic discharge circuit<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>Datasheet:<\/strong><\/p>\n<div class='w3eden'><!-- WPDM Link Template: Default Template -->\n\n<div class=\"link-template-default card mb-2\">\n    <div class=\"card-body\">\n        <div class=\"media\">\n            <div class=\"mr-3 img-48\"><img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\" src=\"https:\/\/testnordic.se\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.svg\" \/><\/div>\n            <div class=\"media-body\">\n                <h3 class=\"package-title\"><a href='https:\/\/testnordic.se\/en\/download\/rmo-m-series-datasheet\/'>RMO-M Series Datasheet<\/a><\/h3>\n                <div class=\"text-muted text-small\"><i class=\"fas fa-copy\"><\/i> 1 file(s) <i class=\"fas fa-hdd ml-3\"><\/i> 483.14 KB<\/div>\n            <\/div>\n            <div class=\"ml-3\">\n                <a class='wpdm-download-link download-on-click btn btn-primary ' rel='nofollow' href='#' data-downloadurl=\"https:\/\/testnordic.se\/en\/download\/rmo-m-series-datasheet\/?wpdmdl=14609&refresh=6a7306a12d3541785923233\">Download<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p><strong>For testing of motors and generators<\/strong><\/p>\n<p>The motor\/generator winding resistance test is used to identify open windings, shorts between two windings, short to grounds, connection mistakes, or shorted turns. The RMO-M motor winding ohmmeter also has the capability of performing heat run test which will show a change in windings resistance with an increase of temperature.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-9259\" src=\"https:\/\/testnordic.com\/wp-content\/uploads\/2022\/02\/Logo-2023-08-14.jpg\" alt=\"\" width=\"202\" height=\"53\" srcset=\"https:\/\/testnordic.se\/wp-content\/uploads\/2022\/02\/Logo-2023-08-14.jpg 202w, https:\/\/testnordic.se\/wp-content\/uploads\/2022\/02\/Logo-2023-08-14-64x17.jpg 64w\" sizes=\"(max-width: 202px) 100vw, 202px\" \/><\/p>\n","protected":false},"featured_media":14615,"template":"","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product_brand":[],"product_cat":[304],"product_tag":[],"yst_prominent_words":[],"class_list":{"0":"post-14613","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-winding-resistance-winding-ohmmeter","8":"first","9":"instock","10":"taxable","11":"shipping-taxable","12":"product-type-simple","13":"entry","14":"content-bg","15":"loop-entry"},"_links":{"self":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product\/14613","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product\/14613\/revisions"}],"predecessor-version":[{"id":14622,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product\/14613\/revisions\/14622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/media\/14615"}],"wp:attachment":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/media?parent=14613"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product_brand?post=14613"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product_cat?post=14613"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product_tag?post=14613"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/yst_prominent_words?post=14613"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}