{"id":2917,"date":"2020-06-05T09:52:14","date_gmt":"2020-06-05T07:52:14","guid":{"rendered":"https:\/\/dev.ep-e.com\/products\/smf-sonicmasterflow\/"},"modified":"2025-06-17T11:27:52","modified_gmt":"2025-06-17T09:27:52","slug":"smf-sonicmasterflow","status":"publish","type":"products","link":"https:\/\/www.ep-e.com\/en\/products\/smf-sonicmasterflow\/","title":{"rendered":"SMF\u00ae &#8211; SonicMasterFlow\u00ae"},"content":{"rendered":"<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<h3 class=\"wp-block-heading\">Highly precise flow measurement of gases and air<\/h3>\n<\/div><\/div><\/div>\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<p class=\"wp-block-paragraph\">The SMF\u00ae &#8211; SonicMasterFlow\u00ae series are calibration systems for high-precision flow measurement of air and other gases (optional) (volume and mass flows) using critically operated laval nozzles. The modular design for a wide range of flow ranges with clever options makes the nozzle test benches ideal for a wide variety of applications. Operation is simple and safe thanks to an intuitive user interface, the automatic nozzle combination and internal system checks.<\/p>\n<\/div><\/div><\/div>\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<p class=\"wp-block-paragraph\">SMF\u00ae &#8211; SonicMasterFlow\u00ae systems are complete nozzle test benches that work with automatically controlled nozzle systems in drum design. The modular structure allows you to choose the optimal combination for your own application from different drum sizes and different nozzle sets. The application spectrum ranges from the lowest flows from 0.0025 up to 10,000 m\u00b3\/h.<\/p>\n<\/div><\/div><\/div>\n\n\n<div id=\"slider-block_98270cce8272c7acffa81ba561378638\"\n    class=\"swiper block-slider slider align\"\n    role=\"region\" aria-label=\"Bild-Slider\">\n\n    <div class=\"swiper-wrapper my-2\">\n                                    <div class=\"swiper-slide text-center\">\n                                                <img\n                                class=\"img-fluid\"\n                                src=\"https:\/\/www.ep-e.com\/wp-content\/uploads\/2020\/06\/D\u00fcsenpr\u00fcfstand_6500m\u00b3h_front-e1592565289603.png\"\n                                alt=\"\"\n                                width=\"4272\"                                 height=\"2848\"                                 loading=\"lazy\"\n                                decoding=\"async\"\n                                fetchpriority=\"low\" \/>\n                                    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class=\"multi-step-form\" data-steps=\"10\">\n  <!-- Progress Bar -->\n  <div class=\"progress mb-3\">\n    <div id=\"form-progress-bar\" class=\"progress-bar\" role=\"progressbar\" style=\"width: 0%;\" aria-valuenow=\"0\" aria-valuemin=\"0\" aria-valuemax=\"100\"><\/div>\n  <\/div>\n  \n  <!-- Step 1: Introduction & Flow Range -->\n  <div id=\"step-1\">\n    <div class=\"form-group mb-3\">\n      <h3>Which flow range do you want to measure?<\/h3>\n      <div>\n        <span class=\"wpcf7-form-control-wrap\" data-name=\"your-flow-range\"><span class=\"wpcf7-form-control wpcf7-checkbox\"><span class=\"wpcf7-list-item first\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-flow-range[]\" value=\"Minimum flow\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">Minimum flow<\/span><\/label><\/span><span class=\"wpcf7-list-item last\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-flow-range[]\" value=\"Maximum flow\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">Maximum flow<\/span><\/label><\/span><\/span><\/span>\n      <\/div>\n      <div>\n        <span class=\"wpcf7-form-control-wrap\" data-name=\"your-flow-range-value\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text form-control\" aria-invalid=\"false\" placeholder=\"Please specify value and unit (e.g., l\/min, m\u00b3\/h, etc.)\" value=\"\" type=\"text\" name=\"your-flow-range-value\" \/><\/span>\n      <\/div>\n    <\/div>\n    <div class=\"d-flex justify-content-end\">\n      <button type=\"button\" class=\"btn btn-primary next-step\">Next<\/button>\n    <\/div>\n  <\/div>\n  \n  <!-- Step 2: Measurement Uncertainty -->\n  <div id=\"step-2\" style=\"display:none;\">\n    <label class=\"form-label d-block\">\n      <h3>Which measurement uncertainty should your SMF<sup>\u00ae<\/sup> system reach?<\/h3>\n    <\/label>\n    <div class=\"form-group mb-3\">\n      <span class=\"wpcf7-form-control-wrap\" data-name=\"your-uncertainty\"><span class=\"wpcf7-form-control wpcf7-checkbox\"><span class=\"wpcf7-list-item first\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-uncertainty[]\" value=\"0,3 % MV\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">0,3 % MV<\/span><\/label><\/span><span class=\"wpcf7-list-item\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-uncertainty[]\" value=\"0,2 % MV\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">0,2 % MV<\/span><\/label><\/span><span class=\"wpcf7-list-item last\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-uncertainty[]\" value=\"0,15 % MV (upon request)\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">0,15 % MV (upon request)<\/span><\/label><\/span><\/span><\/span>\n    <\/div>\n    <div class=\"d-flex justify-content-between\">\n      <button type=\"button\" class=\"btn btn-secondary prev-step\">Back<\/button>\n      <button type=\"button\" class=\"btn btn-primary next-step\">Next<\/button>\n    <\/div>\n  <\/div>\n  \n  <!-- Step 3: Vacuum Pump -->\n  <div id=\"step-3\" style=\"display:none;\">\n    <label class=\"form-label d-block\">\n      <h3>Do you need a suited vacuum pump to operate the requested SMF<sup>\u00ae<\/sup>?<\/h3>\n    <\/label>\n    <div class=\"form-group mb-3\" data-toggle-target=\".toggle-vacuum\" data-toggle-value=\"Yes\">\n      <span class=\"wpcf7-form-control-wrap\" data-name=\"your-vacuum-pump\"><span class=\"wpcf7-form-control wpcf7-checkbox\"><span class=\"wpcf7-list-item first\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-vacuum-pump[]\" value=\"Yes\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">Yes<\/span><\/label><\/span><span class=\"wpcf7-list-item last\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-vacuum-pump[]\" value=\"No\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">No<\/span><\/label><\/span><\/span><\/span>\n      <div class=\"row toggle-vacuum\" style=\"display:none;\">\n        <div class=\"col-md-6 mb-2\">\n          <span class=\"wpcf7-form-control-wrap\" data-name=\"your-vacuum-dut\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text form-control\" aria-invalid=\"false\" placeholder=\"If yes, specify maximum pressure drop via DUT\" value=\"\" type=\"text\" name=\"your-vacuum-dut\" \/><\/span>\n        <\/div>\n        <div class=\"col-md-6 mb-2\">\n          <span class=\"wpcf7-form-control-wrap\" data-name=\"your-vacuum-pressure\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text form-control\" aria-invalid=\"false\" placeholder=\"If yes, specify ambient pressure at setup\" value=\"\" type=\"text\" name=\"your-vacuum-pressure\" \/><\/span>\n        <\/div>\n      <\/div>\n    <\/div>\n    <div class=\"d-flex justify-content-between\">\n      <button type=\"button\" class=\"btn btn-secondary prev-step\">Back<\/button>\n      <button type=\"button\" class=\"btn btn-primary next-step\">Next<\/button>\n    <\/div>\n  <\/div>\n  \n  <!-- Step 4: DUT Data Acquisition -->\n  <div id=\"step-4\" style=\"display:none;\">\n    <label class=\"form-label d-block\">\n      <h3>Do you require DUT data acquisition and evaluation?<\/h3>\n    <\/label>\n    <div class=\"form-group mb-3\" data-toggle-target=\".toggle-dut\" data-toggle-value=\"Yes\">\n      <span class=\"wpcf7-form-control-wrap\" data-name=\"your-data-capture\"><span class=\"wpcf7-form-control wpcf7-checkbox\"><span class=\"wpcf7-list-item first\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-data-capture[]\" value=\"Yes\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">Yes<\/span><\/label><\/span><span class=\"wpcf7-list-item last\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-data-capture[]\" value=\"No\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">No<\/span><\/label><\/span><\/span><\/span>\n      <div class=\"row toggle-dut\" style=\"display:none;\">\n        <div class=\"col-md-6 mb-2\">\n          <span class=\"wpcf7-form-control-wrap\" data-name=\"your-dut\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text form-control\" aria-invalid=\"false\" placeholder=\"If yes, specify DUT\" value=\"\" type=\"text\" name=\"your-dut\" \/><\/span>\n        <\/div>\n        <div class=\"col-md-6 mb-2\">\n          <span class=\"wpcf7-form-control-wrap\" data-name=\"your-datasignal\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text form-control\" aria-invalid=\"false\" placeholder=\"If yes, specify data signal\" value=\"\" type=\"text\" name=\"your-datasignal\" \/><\/span>\n        <\/div>\n      <\/div>\n    <\/div>\n    <div class=\"d-flex justify-content-between\">\n      <button type=\"button\" class=\"btn btn-secondary prev-step\">Back<\/button>\n      <button type=\"button\" class=\"btn btn-primary next-step\">Next<\/button>\n    <\/div>\n  <\/div>\n  \n  <!-- Step 5: DUT Adaptors -->\n  <div id=\"step-5\" style=\"display:none;\">\n    <label class=\"form-label d-block\">\n      <h3>Do you require DUT adaptors?<\/h3>\n    <\/label>\n    <div class=\"form-group mb-3\" data-toggle-target=\".toggle-adaptors\" data-toggle-value=\"Yes\">\n      <span class=\"wpcf7-form-control-wrap\" data-name=\"your-adaptors\"><span class=\"wpcf7-form-control wpcf7-checkbox\"><span class=\"wpcf7-list-item first\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-adaptors[]\" value=\"Yes\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">Yes<\/span><\/label><\/span><span class=\"wpcf7-list-item last\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-adaptors[]\" value=\"No\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">No<\/span><\/label><\/span><\/span><\/span>\n      <div class=\"toggle-adaptors\" style=\"display:none;\">\n        <span class=\"wpcf7-form-control-wrap\" data-name=\"your-adaptors-details\"><textarea cols=\"40\" rows=\"10\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea form-control\" aria-invalid=\"false\" placeholder=\"If yes, please specify further\" name=\"your-adaptors-details\"><\/textarea><\/span>\n      <\/div>\n    <\/div>\n    <div class=\"d-flex justify-content-between\">\n      <button type=\"button\" class=\"btn btn-secondary prev-step\">Back<\/button>\n      <button type=\"button\" class=\"btn btn-primary next-step\">Next<\/button>\n    <\/div>\n  <\/div>\n  \n  <!-- Step 6: Ambient Conditions Measurement -->\n  <div id=\"step-6\" style=\"display:none;\">\n    <label class=\"form-label d-block\">\n      <h3>Do you need ambient conditions measurement?<\/h3>\n    <\/label>\n    <div class=\"form-group mb-3\">\n      <span class=\"wpcf7-form-control-wrap\" data-name=\"your-ambient-measurement\"><span class=\"wpcf7-form-control wpcf7-checkbox\"><span class=\"wpcf7-list-item first\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-ambient-measurement[]\" value=\"Yes\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">Yes<\/span><\/label><\/span><span class=\"wpcf7-list-item last\"><label class=\"form-check form-check-inline form-check-checkbox\"><input type=\"checkbox\" name=\"your-ambient-measurement[]\" value=\"No\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">No<\/span><\/label><\/span><\/span><\/span>\n    <\/div>\n    <div class=\"d-flex justify-content-between\">\n      <button type=\"button\" class=\"btn btn-secondary prev-step\">Back<\/button>\n      <button type=\"button\" class=\"btn btn-primary next-step\">Next<\/button>\n    <\/div>\n  <\/div>\n  \n  <!-- Step 7: Contact data -->\n  <div id=\"step-7\" style=\"display:none;\">\n    <label class=\"form-label d-block\">\n      <h3>Contact data<\/h3>\n    <\/label>\n    <div class=\"form-group\">\n      <div class=\"row\">\n        <div class=\"col-md-6 mb-2\">\n          <span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text form-control\" aria-invalid=\"false\" placeholder=\"Name\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n        <\/div>\n        <div class=\"col-md-6 mb-2\">\n          <span class=\"wpcf7-form-control-wrap\" data-name=\"your-company\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text form-control\" aria-invalid=\"false\" placeholder=\"Company\" value=\"\" type=\"text\" name=\"your-company\" \/><\/span>\n        <\/div>\n      <\/div>\n      <div class=\"row\">\n        <div class=\"col-md-6 mb-2\">\n          <span class=\"wpcf7-form-control-wrap\" data-name=\"your-department\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text form-control\" aria-invalid=\"false\" placeholder=\"Department\" value=\"\" type=\"text\" name=\"your-department\" \/><\/span>\n        <\/div>\n        <div class=\"col-md-6 mb-2\">\n          <span class=\"wpcf7-form-control-wrap\" data-name=\"your-phone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-text wpcf7-validates-as-tel form-control\" aria-invalid=\"false\" 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The data will be deleted once processing is completed. Note: You can revoke your consent at any time by sending an email to info@ep-e.com. Detailed information on how we handle user data can be found in our privacy policy.\" class=\"form-check-input\"><span class=\"wpcf7-list-item-label form-check-label\">I agree that my data from this form will be collected and processed to handle my request. The data will be deleted once processing is completed. Note: You can revoke your consent at any time by sending an email to info@ep-e.com. Detailed information on how we handle user data can be found in our privacy policy.<\/span><\/label><\/span><\/span><\/span>\n    <\/div>\n    \n    <button type=\"submit\" class=\"btn btn-primary wpcf7-submit w-100\">Send<\/button>\n    <div class=\"d-flex justify-content-between mt-3\">\n      <button type=\"button\" class=\"btn btn-secondary prev-step\">Back<\/button>\n    <\/div>\n  <\/div>\n<\/div><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<\/form>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<h3 class=\"wp-block-heading\">Technical data<\/h3>\n<\/div><\/div><\/div>\n\n<div class=\"d-flex justify-content-center table-responsive sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\">\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Flow range<\/td><td>0.0025&#8230;10,000 m\u00b3\/h<\/td><\/tr><tr><td>System accuracy<\/td><td>0.3% MV (DAkkS)<br>0.2% MV (PTB)<\/td><\/tr><tr><td>Nozzle accuracy<\/td><td>0.25% MV (DAkkS)<br>0.15% MV (PTB)<\/td><\/tr><tr><td>Recalibration period<\/td><td> Up to 10 years for laval nozzles<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<h3 class=\"wp-block-heading\">Applications<\/h3>\n<\/div><\/div><\/div>\n\n<div class=\"cnt_row\"><div class=\"cnt_col block_list sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<ul class=\"wp-block-list\">\n<li>Calibration of various flow sensors (gas meters, air mass meters, MID, LFEs, orifices, venturis, ultrasonic gas meters etc.)<\/li>\n\n\n\n<li>Calibration as an end-of-line or development test at the manufacturer<\/li>\n\n\n\n<li>Alignment level for valves, actuators, flow meters, etc<\/li>\n<\/ul>\n<\/div><\/div><\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<h3 class=\"wp-block-heading\">Measurement principle<\/h3>\n<\/div><\/div><\/div>\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<p class=\"wp-block-paragraph\">With the flow at the speed of sound through Laval nozzles, a constant volume flow can be set very precisely and quickly. By combining different critical nozzles, a wide variety of flows can be generated. With 8 critical nozzles e.g. 2^8 = 256 different flows can be generated. For uniform coverage of the flow range, a binary staggering of the nozzles is recommended. If, however, other nozzle sizes make more sense due to the application, customer-specific adaptation of the nozzle set is possible.<\/p>\n<\/div><\/div><\/div>\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"d-flex justify-content-center sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\">\n<figure class=\"wp-block-image size-large is-resized is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"198\" height=\"133\" src=\"https:\/\/www.ep-e.com\/wp-content\/uploads\/2020\/06\/schemazeichnung_stroemung_mit_schallgeschwindigkeit_durch_lavalduese.gif\" alt=\"\" class=\"wp-image-834\"\/><\/figure>\n<\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<h3 class=\"wp-block-heading\">Are you interested in further details?<\/h3>\n<\/div><\/div><\/div>\n\n    <div class=\"cnt_row align\">\n        <div class=\"cnt_col\">\n                            <div class=\"btn_cta shadow\">\n                    <a class=\"f_btn btn\" href=\"https:\/\/www.ep-e.com\/wp-content\/uploads\/2024\/05\/Sonic-Master-Flow-flow-measurement_170509_V01-2020.pdf\" target=\"\" rel=\"\">\n                        Brochure SMF\u00ae                    <\/a>\n                <\/div>\n                    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>High-precision flow measurement of gases and air using critical-operated laval nozzles.<\/p>\n","protected":false},"featured_media":839,"template":"","product-type":[],"class_list":["post-2917","products","type-products","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - 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