{"id":3532,"date":"2026-09-03T17:07:03","date_gmt":"2026-09-03T09:07:03","guid":{"rendered":"https:\/\/www.rettar.com\/en\/?post_type=products&#038;p=3532"},"modified":"2026-09-03T17:07:03","modified_gmt":"2026-09-03T09:07:03","slug":"tuning-fork-density-meter","status":"publish","type":"products","link":"https:\/\/www.rettar.com\/en\/products\/tuning-fork-density-meter\/","title":{"rendered":"Tuning Fork Density Meter"},"content":{"rendered":"<p>Density Performance Parameter<\/p>\n<table>\n<thead>\n<tr>\n<th>\n<div class=\"ybc-p\">Parameter Type<\/div>\n<\/th>\n<th>\n<div class=\"ybc-p\">Specific Value<\/div>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<div class=\"ybc-p\">Repeatability<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.0001 g\/cm\u00b3<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Density Working Range<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">0-3.0 g\/cm\u00b3<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Process Temperature Influence<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">&lt;0.0001 g\/cm\u00b3 \/ 10\u2103<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Process Pressure Influence<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">&lt;0.0001 g\/cm\u00b3 \/ bar<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Viscosity Influence<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">Negligible up to 20000 cP<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Maximum Working Pressure<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">40bar \/ 100bar (optional)<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Test Pressure<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">60bar<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Medium Temperature<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">-40\u2103 to 200\u2103<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Enclosure Material<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">316L stainless steel<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Ambient Temperature<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">-40\u2103 to 80\u2103<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Protection Rating<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">IP67<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Concentration Performance Parameter<\/p>\n<table>\n<thead>\n<tr>\n<th>\n<div class=\"ybc-p\">Performance Item<\/div>\n<\/th>\n<th>\n<div class=\"ybc-p\">Alcohol (Ethanol)<\/div>\n<\/th>\n<th>\n<div class=\"ybc-p\">Ammonia (NH\u2083)<\/div>\n<\/th>\n<th>\n<div class=\"ybc-p\">Sulfuric Acid (H\u2082SO\u2084)<\/div>\n<\/th>\n<th>\n<div class=\"ybc-p\">Hydrochloric Acid (HCl)<\/div>\n<\/th>\n<th>\n<div class=\"ybc-p\">Nitric Acid (HNO\u2083)<\/div>\n<\/th>\n<th>\n<div class=\"ybc-p\">Urea (AdBlue)<\/div>\n<\/th>\n<th>\n<div class=\"ybc-p\">Hydrogen Peroxide (H\u2082O\u2082)<\/div>\n<\/th>\n<th>\n<div class=\"ybc-p\">Caustic Soda (NaOH)<\/div>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<div class=\"ybc-p\">Concentration Range<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">0-100% vol<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">0-30%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">0-98%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">0-37%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">0-70%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">0-100%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">0-50%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">0-50%<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Accuracy<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.5%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.5%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.5%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.5%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.5%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.5%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.5%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.5%<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Repeatability<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.1%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.1%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.1%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.1%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.1%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.1%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.1%<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">\u00b10.1%<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Temp. Influence<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">&lt;0.1% \/ 10\u2103<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Pressure Influence<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">&lt;0.1% \/ bar<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Viscosity Influence<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">&lt;0.1% \/ 100cP<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Working Pressure<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">40bar<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">40bar<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">40bar<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">40bar<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">40bar<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">40bar<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">40bar<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">40bar<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Medium Temperature<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">-40\u2026150\u2103<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">-40\u2026150\u2103<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">-40\u2026200\u2103<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">-40\u2026150\u2103<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">-40\u2026150\u2103<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">-40\u2026100\u2103<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">-40\u202680\u2103<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">-40\u2026150\u2103<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Protection Rating<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">IP67<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">IP67<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">IP67<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">IP67<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">IP67<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">IP67<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">IP67<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">IP67<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Vibration Resistance<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">IEC 60068-2-6, 5g<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div class=\"ybc-p\">Shock Resistance<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">IEC 60068-2-27, 30g<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<td>\n<div class=\"ybc-p\">same<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>The tuning fork density meter measurement system operates based on the principle of tuning fork vibration measurement. This vibrating element is similar to a two tooth tuning fork, where the fork vibrates due to a piezoelectric crystal located at the root of the tooth. The frequency of the vibration is detected by another piezoelectric crystal, which is inversely proportional to the density of the process fluid. The processor calculates the density signal based on this relationship. The resonance frequency is a function of medium density: \u03c1 = K 0+K1 T+K 2T2 \u03c1 &#8211; Liquid density T &#8211; The vibration period output by the sensor K0, K1, K2 &#8211; The constant of the sensor, calibrated at the factory.<\/p>\n","protected":false},"featured_media":3535,"parent":0,"menu_order":0,"template":"","tags":[],"product":[496],"size":[],"material":[],"class_list":["post-3532","products","type-products","status-publish","has-post-thumbnail","hentry","product-density-meter","post1-3532"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.rettar.com\/en\/wp-json\/wp\/v2\/products\/3532","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rettar.com\/en\/wp-json\/wp\/v2\/products"}],"about":[{"href":"https:\/\/www.rettar.com\/en\/wp-json\/wp\/v2\/types\/products"}],"version-history":[{"count":1,"href":"https:\/\/www.rettar.com\/en\/wp-json\/wp\/v2\/products\/3532\/revisions"}],"predecessor-version":[{"id":3536,"href":"https:\/\/www.rettar.com\/en\/wp-json\/wp\/v2\/products\/3532\/revisions\/3536"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rettar.com\/en\/wp-json\/wp\/v2\/media\/3535"}],"wp:attachment":[{"href":"https:\/\/www.rettar.com\/en\/wp-json\/wp\/v2\/media?parent=3532"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rettar.com\/en\/wp-json\/wp\/v2\/tags?post=3532"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.rettar.com\/en\/wp-json\/wp\/v2\/product?post=3532"},{"taxonomy":"size","embeddable":true,"href":"https:\/\/www.rettar.com\/en\/wp-json\/wp\/v2\/size?post=3532"},{"taxonomy":"material","embeddable":true,"href":"https:\/\/www.rettar.com\/en\/wp-json\/wp\/v2\/material?post=3532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}