{"id":8092,"date":"2022-05-24T04:44:26","date_gmt":"2022-05-23T20:44:26","guid":{"rendered":"https:\/\/ancor.biz\/?post_type=product&#038;p=8092"},"modified":"2025-08-18T12:43:39","modified_gmt":"2025-08-18T04:43:39","slug":"dwyer-series-647-wet-wet-differential-pressure-transmitter","status":"publish","type":"product","link":"https:\/\/ancor.biz\/index.php\/product\/dwyer-series-647-wet-wet-differential-pressure-transmitter\/","title":{"rendered":"DWYER Series 647 Wet\/Wet Differential Pressure Transmitter"},"content":{"rendered":"<h1>Series 647 Wet\/Wet Differential Pressure Transmitter, \u00b11.0% Accuracy, NEMA 4 (IP56)<\/h1>\n<h1>Enclosure, 2-Wire<\/h1>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/ancor.biz\/index.php\/product-category\/brand\/dwyer-instruments-brand\/\">DWYER<\/a> Series 647 Wet\/Wet Differential Pressure Transmitter monitor differential pressure in air\/liquid flow systems, HVAC automation, pneumatic systems and process control . DWYER <a href=\"https:\/\/intl.dwyer-inst.com\/Product\/Pressure\/DifferentialPressure\/Transmitters\/Series647?Query=647\">Series 647<\/a> Wet\/Wet Differential Pressure Transmitter Units are temperature compensated and provide a 4 to 20 mA output signal which can be interfaced with chart recorders, data loggers and computerized monitoring and control systems.<\/p>\n<p>&nbsp;<\/p>\n<section id=\"features\" class=\"ui-tabs-panel ui-widget-content ui-corner-bottom\" role=\"tabpanel\" aria-labelledby=\"ui-id-4\" aria-expanded=\"true\" aria-hidden=\"false\">\n<h1 class=\"tab-heading\">Features<\/h1>\n<ul>\n<li>Versatile for liquid or gas supports designs requiring more precise measurements in support of application<\/li>\n<li>Temperature compensated improves performance of device for accurate measurement under different operating environments<\/li>\n<li>Output signal provides capability to interface with automation systems to centralize monitoring<\/li>\n<\/ul>\n<\/section>\n<p>&nbsp;<\/p>\n<section id=\"specs\" class=\"ui-tabs-panel ui-widget-content ui-corner-bottom\" role=\"tabpanel\" aria-labelledby=\"ui-id-3\" aria-expanded=\"true\" aria-hidden=\"false\">\n<h1 class=\"tab-heading\">Specifications<\/h1>\n<ul class=\"list-specs lined\">\n<li>Service: Compatible gases or liquids on both pressure and reference sides.<\/li>\n<li class=\"title\">Wetted Materials: Brass, vinyl, glass-filled polyester, silicon, and florosilicone.<\/li>\n<li class=\"title\">Accuracy: \u00b11.0% FS.<\/li>\n<li class=\"title\">Stability: \u00b11.5% FS output\/year.<\/li>\n<li class=\"title\">Temperature Limits: 32 to 122\u00b0F (0 to 50\u00b0C).<\/li>\n<li class=\"title\">Pressure Limits: Ranges 1&#8243; w.c. to 5 psi; 20 psi, 15 psi range; 45 psi, 30 psi range; 60 psi.<\/li>\n<li class=\"title\">Thermal Effects: Zero: \u00b10.05% FS\/\u00b0F, Span: \u00b10.05% rdg\/\u00b0F.<\/li>\n<li class=\"title\">Power Requirements: 18 to 30 VDC.<\/li>\n<li class=\"title\">Output Signal: 4 to 20 mA, 2-wire.<\/li>\n<li class=\"title\">Zero and Span Adjustments: Adjustable, \u00b110%.<\/li>\n<li class=\"title\">Loop Resistance: 400 \u03a9 @ 18 VDC, 600 \u03a9 @ 24 VDC, 1000 \u03a9 @ 30 VDC.<\/li>\n<li class=\"title\">Electrical Connection: Screw terminals, reverse polarity protected.<\/li>\n<li class=\"title\">Process Connections: Two 1\/8&#8243; female NPT.<\/li>\n<li class=\"title\">Housing: Gasketed steel epoxy painted, NEMA 4 (IP56).<\/li>\n<li class=\"title\">Weight: 14 oz (397 g).<\/li>\n<\/ul>\n<\/section>\n<p>&nbsp;<\/p>\n<h2 class=\"tab-heading\">Models &amp; Ordering<\/h2>\n<p>&nbsp;<\/p>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">647-0<\/td>\n<td class=\"description\" width=\"\">Wet\/wet differential pressure transmitter, range 0-1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">647-1<\/td>\n<td class=\"description\" width=\"\">Wet\/wet differential pressure transmitter, range 0-3&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">647-2<\/td>\n<td class=\"description\" width=\"\">Wet\/wet differential pressure transmitter, range 0-25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">647-3<\/td>\n<td class=\"description\" width=\"\">Wet\/wet differential pressure transmitter, range 0-5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">647-4<\/td>\n<td class=\"description\" width=\"\">Wet\/wet differential pressure transmitter, range 0-10&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">647-5<\/td>\n<td class=\"description\" width=\"\">Wet\/wet differential pressure transmitter, range 0-1 psid.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">647-6<\/td>\n<td class=\"description\" width=\"\">Wet\/wet differential pressure transmitter, range 0-5 psid.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">647-7<\/td>\n<td class=\"description\" width=\"\">Wet\/wet differential pressure transmitter, range 0-15 psid.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">647-8<\/td>\n<td class=\"description\" width=\"\">Wet\/wet differential pressure transmitter, range 0-30 psid.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Series 647 Wet\/Wet Differential Pressure Transmitter, \u00b11.0% Accuracy, NEMA 4 (IP56) Enclosure, 2-Wire &nbsp; DWYER Series 647 Wet\/Wet Differential Pressure Transmitter monitor differential pressure in air\/liquid flow systems, HVAC automation, pneumatic systems and process control . DWYER Series 647 Wet\/Wet Differential Pressure Transmitter Units are temperature compensated and provide a 4 to 20 mA output &#8230; <a title=\"DWYER Series 647 Wet\/Wet Differential Pressure Transmitter\" class=\"read-more\" href=\"https:\/\/ancor.biz\/index.php\/product\/dwyer-series-647-wet-wet-differential-pressure-transmitter\/\" aria-label=\"More on DWYER Series 647 Wet\/Wet Differential Pressure Transmitter\">Read more<\/a><\/p>\n","protected":false},"featured_media":8093,"template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"spay_email":""},"class_list":["post-8092","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-brand","product_cat-differential-pressure","product_cat-dwyer-pressure-transmitter","product_cat-dwyer-instruments-dwyer-omega","product_cat-dwyer-instruments-brand","product_cat-dwyer-omega","product_cat-pressure-transmitter","product_cat-pressure-transmitter-dwyer-instruments-brand","product_cat-pressure-transmitter-dwyer-instruments-dwyer-omega","product_tag-647-0","product_tag-647-1","product_tag-647-2","product_tag-647-3","product_tag-647-4","product_tag-647-5","product_tag-647-6","product_tag-647-7","product_tag-647-8","product_tag-dwyer-series-647","product_tag-dwyer-series-647-wet-wet-differential-pressure-transmitter","sales-flash-overlay","woocommerce-text-align-center","woocommerce-image-align-center","do-quantity-buttons"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.3 - 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