{"id":5882,"date":"2017-12-12T16:13:36","date_gmt":"2017-12-12T16:13:36","guid":{"rendered":"https:\/\/www.deeterelectronics.com\/?post_type=product&#038;p=5882"},"modified":"2022-10-05T10:59:00","modified_gmt":"2022-10-05T09:59:00","slug":"explosion-proof-horizontal-float-switch-hfs-ex","status":"publish","type":"product","link":"https:\/\/www.deeterelectronics.com\/us\/product\/hazardous-area-products-with-atex-iecex-certification\/hazardous-area-float-switches\/explosion-proof-horizontal-float-switch-hfs-ex\/","title":{"rendered":"Explosion Proof Horizontal Float Switch (HFS Ex)"},"content":{"rendered":"<p>The HFS Ex Hazardous Area Horizontal <a href=\"https:\/\/www.deeterelectronics.com\/product-range\/float-switches-and-level-sensors\/\">Float Switch<\/a> is a float operated magnet arm on a reed switch sensor stem which has been specifically designed for the control and indication of a liquid level whilst in a potentially explosive atmosphere. Manufactured in 316L Stainless Steel, the HFS Ex can be used in both high temperature and high pressure applications and is suitable for gas and dust hazardous environments. It reliably detects the liquid level and offers voltage free contact operation, ideally suited for use as part of a pump control system or for alarm signalling.<\/p>\n<p><iframe loading=\"lazy\" title=\"Deeter Electronics HFS Ex Explosion Proof Horizontal Float Switch\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/9NAgO6nPjiU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Features include:<\/p>\n<ul>\n<li>ATEX and IECEx Ex d approved.<\/li>\n<li>Voltage free SPST or SPDT reed switch contacts.<\/li>\n<li>Stainless Steel 316L housing and wetted components.<\/li>\n<li>Custom mounting options available.<\/li>\n<li>Suitable for high liquid temperatures.<\/li>\n<li>Suitable for gas and dust hazardous areas.<\/li>\n<li>IP68 ingress protection.<\/li>\n<li>Suitable for low specific gravity liquids.<\/li>\n<li>M20 or \u00bd&#8221; NPT cable entry.<\/li>\n<\/ul>\n<p>Industries the HFS Ex are commonly used in (but not limited to):<\/p>\n<ul>\n<li>Hydraulic Oil<\/li>\n<li>Food and beverage industries<\/li>\n<li>Oil and gas industries<\/li>\n<li>Automotive industries<\/li>\n<\/ul>\n<p><strong>Ex Coding<\/strong>With Mounting Adaptor:<br \/>\nEx II 1\/2G 2D<br \/>\nEx db IIC (*) Ga\/Gb<br \/>\nEx tb IIIC (*) Db<br \/>\n-20\u00b0C \u2264T <sub>amb<\/sub> \u2264 +85\u00b0C<br \/>\n* Temperature class options to suit environment and process temperatures<\/p>\n<ul>\n<li>T5 \/ T100\u00b0C for process temperatures \u2264 85\u00b0C<\/li>\n<li>T4 \/ T135\u00b0C for process temperatures \u2264 125\u00b0C<\/li>\n<li>T3 \/ T200\u00b0C for process temperatures \u2264 190\u00b0C<\/li>\n<\/ul>\n<table class=\"table table-bordered\">\n<tbody>\n<tr>\n<td><\/td>\n<td><strong>HFS Ex<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Approval<\/strong><\/td>\n<td>ATEX &amp; IECEx Ex d<\/td>\n<\/tr>\n<tr>\n<td><strong>Sensor technology<\/strong><\/td>\n<td>Reed Switch operated by float on magnetic arm<\/td>\n<\/tr>\n<tr>\n<td><strong>Sensor tube and wetted materials<\/strong><\/td>\n<td>Stainless steel 316L<\/td>\n<\/tr>\n<tr>\n<td><strong>Connection head material<\/strong><\/td>\n<td>Stainless steel 316L<\/td>\n<\/tr>\n<tr>\n<td><strong>IP rating with suitable cable gland<\/strong><\/td>\n<td>IP68<\/td>\n<\/tr>\n<tr>\n<td><strong>Approximate weight<\/strong><\/td>\n<td>12.kg to 2.5kg depending on mounting option selected<\/td>\n<\/tr>\n<tr>\n<td><strong>Float Diameter : Specific gravity<\/strong><\/td>\n<td>\u00f838mm : 0.4<br \/>\n<em>Other floats available<\/em><\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><strong><em>Maximum liquid temperature:<\/em><\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>T5\/100\u00b0C hazard environment<br \/>\nT4\/135\u00b0C hazard environment<br \/>\nT3\/200\u00b0C hazard environment<\/strong><\/td>\n<td>-20 to +85\u00b0C<br \/>\n-20 to +125\u00b0C<br \/>\n-20 to +190\u00b0C<\/td>\n<\/tr>\n<tr>\n<td><strong>Maximum head temperature<\/strong><\/td>\n<td>-20 to +80\u00b0C<br \/>\n<em>When this equipment is intended to be used in a liquid with a process temperature above 85\u00b0C it is an essential requirement that the sensor head temperature is measured to determine if the ambient air cooling is sufficient to keep the head below 80\u00b0C. See installation manual for detail.<\/em><\/td>\n<\/tr>\n<tr>\n<td><strong>Maximum operating pressure<\/strong><\/td>\n<td>150PSI \/ 10Bar standard<br \/>\n450PSI \/ 31Bar optional<br \/>\n<em>The HFS Ex sensor float and tube can withstand the stated pressure when sealed inside a tank. The connection head and resin seal to the sensor stem must not be pressurised. The pressure of the hazardous zone must not exceed normal atmospheric conditions (0.8 to 1.1bar).<\/em><\/td>\n<\/tr>\n<tr>\n<td><strong>Thread connection-Sensor tube<\/strong><\/td>\n<td>\u00bd\u201d-14 NPT<\/td>\n<\/tr>\n<tr>\n<td><strong>Thread connection-Wiring port<\/strong><\/td>\n<td>\u00bd\u201d-14 NPT or M20X1.5<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\"><strong><em>Voltage Free Contact Switch Rating<\/em><\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>SPST Form A<\/strong><\/td>\n<td>0 to 240Vac. 1Amp. 50Watts Max<\/td>\n<\/tr>\n<tr>\n<td><strong>SPDT Form C<\/strong><\/td>\n<td>0 to 50Vdc. 0.25Amp. 20Watts Max<\/td>\n<\/tr>\n<tr>\n<td><strong>Certificate Download<\/strong><\/td>\n<td valign=\"top\">[Download not found]<\/p>\n<p>[Download not found]<\/td>\n<\/tr>\n<tr>\n<td><strong>Datasheet Download<\/strong><\/td>\n<td>[Download not found]<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\"><strong>Installation Instructions Download<\/strong><\/td>\n<td valign=\"top\">[Download not found]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong><a href=\"https:\/\/www.deeterelectronics.com\/product\/float-switches-level-sensors\/marine-type-approved-f-s-fp-series-float-switch\/\">For more about Float Switches click here.<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The HFS Ex Hazardous Area Horizontal Float Switch is a float operated magnet arm on a reed switch sensor stem which has been specifically designed for the control and indication of a liquid level whilst in a potentially explosive atmosphere. Manufactured in 316L Stainless Steel, the HFS Ex can be used in both high temperature<\/p>\n<p><a href=\"https:\/\/www.deeterelectronics.com\/us\/product\/hazardous-area-products-with-atex-iecex-certification\/hazardous-area-float-switches\/explosion-proof-horizontal-float-switch-hfs-ex\/\"><\/p>\n<p class=\"btn btn-default\">> view full article<\/a><\/p>\n","protected":false},"featured_media":5883,"template":"","meta":{"inline_featured_image":false},"product_brand":[],"product_cat":[15,81,80,17],"product_tag":[],"class_list":{"0":"post-5882","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-float-switches-level-sensors","7":"product_cat-hazardous-area-float-switches","8":"product_cat-hazardous-area-products-with-atex-iecex-certification","9":"product_cat-horizontal-mounting","11":"first","12":"instock","13":"shipping-taxable","14":"product-type-external"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Explosion Proof Horizontal Float Switch (HFS Ex) - Deeter Electronics USA<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.deeterelectronics.com\/us\/product\/hazardous-area-products-with-atex-iecex-certification\/hazardous-area-float-switches\/explosion-proof-horizontal-float-switch-hfs-ex\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Explosion Proof Horizontal Float Switch (HFS Ex) - Deeter Electronics USA\" \/>\n<meta property=\"og:description\" content=\"The HFS Ex Hazardous Area Horizontal Float Switch is a float operated magnet arm on a reed switch sensor stem which has been specifically designed for the control and indication of a liquid level whilst in a potentially explosive atmosphere. 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