SJ-4600 Specifications<\/title>\n <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\" \/>\n <style>\n body { font-family: Arial, sans-serif; padding: 20px; }\n table { border-collapse: collapse; width: 100%; max-width: 800px; }\n caption { font-weight: bold; margin-bottom: 8px; text-align: left; }\n th, td { border: 1px solid #ccc; padding: 8px 10px; text-align: left; }\n th { background: #f5f5f5; width: 30%; }\n td.value { width: 70%; }\n @media (max-width:600px){\n th, td { font-size: 14px; padding: 6px 8px; }\n }\n <\/style>\n<\/head>\n<body>\n\n <table>\n <tbody>\n <tr>\n <th>Model<\/th>\n <td class=\"value\">SJ-4600<\/td>\n <\/tr>\n <tr>\n <th>Sensor applied<\/th>\n <td class=\"value\">Sensor (Electric Type)<\/td>\n <\/tr>\n <tr>\n <th>Measurement range<\/th>\n <td class=\"value\">0 ~ 50 mm<\/td>\n <\/tr>\n <tr>\n <th>Resolution<\/th>\n <td class=\"value\">Below 0.01 mm<\/td>\n <\/tr>\n <tr>\n <th>Accuracy<\/th>\n <td class=\"value\">Below 0.1%<\/td>\n <\/tr>\n <tr>\n <th>Temp. expansion coefficient of resistance<\/th>\n <td class=\"value\">\u00b1400 ppm\/\u00b0C<\/td>\n <\/tr>\n <tr>\n <th>Rated power<\/th>\n <td class=\"value\">0.6 W ~ 4 W<\/td>\n <\/tr>\n <tr>\n <th>Linearity<\/th>\n <td class=\"value\">Below \u00b11%<\/td>\n <\/tr>\n <tr>\n <th>Total resistance deviation<\/th>\n <td class=\"value\">\u00b120%<\/td>\n <\/tr>\n <tr>\n <th>Dimension<\/th>\n <td class=\"value\">Sensor: L = 132 mm, D (\u00d8) = 25 mm<br>Plate: L = 62 mm<\/td>\n <\/tr>\n <tr>\n <th>Built-in temperature sensor<\/th>\n <td class=\"value\">Included (built-in)<\/td>\n <\/tr>\n <tr>\n <th>Weight<\/th>\n <td class=\"value\">0.22 kg<\/td>\n <\/tr>\n <tr>\n <th>Material<\/th>\n <td class=\"value\">Stainless Steel<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n\n<\/body>\n<\/html>\n\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>This is subject to change without prior notice in order to improve the product\u2019s quality.<\/summary>\n<p><\/p>\n<\/details>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Description The Electric Crack Meter is used to measure the size change of the surface or connection part, as well as cracks in concrete structures. A high-precision and linear potentiometer is mounted inside the housing. When deformation occurs, the rod pushes or pulls the sensor, which sends the movement to<span class=\"more-link\"><a href=\"https:\/\/foredencnc.com\/?p=57\">Read More →<\/a><\/span><\/p>\n","protected":false},"author":2,"featured_media":60,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,136,15,3,116,133],"tags":[31,32],"class_list":["entry","author-editor","post-57","post","type-post","status-publish","format-standard","has-post-thumbnail","category-displacement-transducers","category-measurements","category-news","category-products","category-sensor-product","category-sensors","tag-electric-crack-meter","tag-32"],"_links":{"self":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts\/57","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=57"}],"version-history":[{"count":2,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts\/57\/revisions"}],"predecessor-version":[{"id":62,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts\/57\/revisions\/62"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/media\/60"}],"wp:attachment":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=57"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=57"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=57"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

The Electric Crack Meter<\/strong> is used to measure the size change of the surface or connection part, as well as cracks in concrete structures.<\/p>\n\n\n\n

A high-precision and linear potentiometer is mounted inside the housing. When deformation occurs, the rod pushes or pulls the sensor, which sends the movement to the potentiometer. The potentiometer converts the length change into an electrical signal, which is then transmitted to the output device.<\/p>\n\n\n\n

This output signal can be easily converted into a length displacement value by applying a conversion coefficient. The difference between the initial (default) measurement value and the current measurement value represents the displacement. This allows the change speed, ratio, and trend of the crack to be easily measured.<\/p>\n\n\n

\n
$\"\"$ <\/figure>\n<\/div>\n\n\n
Composition & Characteristics<\/strong><\/h3>\n\n\n\n
\u25a3 Components<\/strong><\/h4>\n\n\n\n
\n
Crack meter sensor<\/li>\n\n\n\n
Cable<\/li>\n\n\n\n
Protection box<\/li>\n<\/ol>\n\n\n\n
\u25a3 Features<\/strong><\/h4>\n\n\n\n
\n
High stability and reliability<\/li>\n\n\n\n
Excellent reproducibility and responsiveness with a built-in high-precision linear potentiometer<\/li>\n\n\n\n
Multiple measurement ranges available (10 mm ~ 300 mm)<\/li>\n\n\n\n
Built-in high-precision temperature sensor
<\/li>\n<\/ol>\n\n\n\n
Specification<\/h3>\n\n\n\n\n\n\n \n SJ-4600 Specifications<\/title>\n <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\" \/>\n <style>\n body { font-family: Arial, sans-serif; padding: 20px; }\n table { border-collapse: collapse; width: 100%; max-width: 800px; }\n caption { font-weight: bold; margin-bottom: 8px; text-align: left; }\n th, td { border: 1px solid #ccc; padding: 8px 10px; text-align: left; }\n th { background: #f5f5f5; width: 30%; }\n td.value { width: 70%; }\n @media (max-width:600px){\n th, td { font-size: 14px; padding: 6px 8px; }\n }\n <\/style>\n<\/head>\n<body>\n\n <table>\n <tbody>\n <tr>\n <th>Model<\/th>\n <td class=\"value\">SJ-4600<\/td>\n <\/tr>\n <tr>\n <th>Sensor applied<\/th>\n <td class=\"value\">Sensor (Electric Type)<\/td>\n <\/tr>\n <tr>\n <th>Measurement range<\/th>\n <td class=\"value\">0 ~ 50 mm<\/td>\n <\/tr>\n <tr>\n <th>Resolution<\/th>\n <td class=\"value\">Below 0.01 mm<\/td>\n <\/tr>\n <tr>\n <th>Accuracy<\/th>\n <td class=\"value\">Below 0.1%<\/td>\n <\/tr>\n <tr>\n <th>Temp. expansion coefficient of resistance<\/th>\n <td class=\"value\">\u00b1400 ppm\/\u00b0C<\/td>\n <\/tr>\n <tr>\n <th>Rated power<\/th>\n <td class=\"value\">0.6 W ~ 4 W<\/td>\n <\/tr>\n <tr>\n <th>Linearity<\/th>\n <td class=\"value\">Below \u00b11%<\/td>\n <\/tr>\n <tr>\n <th>Total resistance deviation<\/th>\n <td class=\"value\">\u00b120%<\/td>\n <\/tr>\n <tr>\n <th>Dimension<\/th>\n <td class=\"value\">Sensor: L = 132 mm, D (\u00d8) = 25 mm<br>Plate: L = 62 mm<\/td>\n <\/tr>\n <tr>\n <th>Built-in temperature sensor<\/th>\n <td class=\"value\">Included (built-in)<\/td>\n <\/tr>\n <tr>\n <th>Weight<\/th>\n <td class=\"value\">0.22 kg<\/td>\n <\/tr>\n <tr>\n <th>Material<\/th>\n <td class=\"value\">Stainless Steel<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n\n<\/body>\n<\/html>\n\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>This is subject to change without prior notice in order to improve the product\u2019s quality.<\/summary>\n<p><\/p>\n<\/details>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Description The Electric Crack Meter is used to measure the size change of the surface or connection part, as well as cracks in concrete structures. A high-precision and linear potentiometer is mounted inside the housing. When deformation occurs, the rod pushes or pulls the sensor, which sends the movement to<span class=\"more-link\"><a href=\"https:\/\/foredencnc.com\/?p=57\">Read More →<\/a><\/span><\/p>\n","protected":false},"author":2,"featured_media":60,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,136,15,3,116,133],"tags":[31,32],"class_list":["entry","author-editor","post-57","post","type-post","status-publish","format-standard","has-post-thumbnail","category-displacement-transducers","category-measurements","category-news","category-products","category-sensor-product","category-sensors","tag-electric-crack-meter","tag-32"],"_links":{"self":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts\/57","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=57"}],"version-history":[{"count":2,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts\/57\/revisions"}],"predecessor-version":[{"id":62,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/posts\/57\/revisions\/62"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=\/wp\/v2\/media\/60"}],"wp:attachment":[{"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=57"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=57"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/foredencnc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=57"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}