{"id":6744,"date":"2026-07-17T15:55:30","date_gmt":"2026-07-17T15:55:30","guid":{"rendered":"https:\/\/europascal.de\/product\/fluke-721\/"},"modified":"2026-10-07T11:19:34","modified_gmt":"2026-10-07T11:19:34","slug":"fluke-721","status":"publish","type":"product","link":"https:\/\/europascal.de\/en\/product\/fluke-721\/","title":{"rendered":"Fluke Calibration 721 Precise Pressure Calibrator"},"content":{"rendered":"<p><strong>Fluke Calibration 721<\/strong> is a precise dual-sensor pressure calibrator developed especially for <strong>gas custody transfer, flow measurement and process calibration applications<\/strong>. Two isolated stainless-steel pressure sensors allow static and differential pressure to be measured simultaneously with a single handheld instrument. The calibrator also measures <strong>4\u201320 mA signals<\/strong>, DC voltage and temperature via an optional Pt100 probe and provides an internal <strong>24 V loop power supply<\/strong> for transmitters. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>The Fluke Calibration 721 is particularly useful in natural-gas metering and custody-transfer systems where both the static line pressure and a relatively small differential pressure across a primary flow element must be measured accurately. The user can select a low-pressure sensor with either <strong>16 psi \/ 1.1 bar<\/strong> or <strong>36 psi \/ 2.48 bar<\/strong> range and combine it with one of seven higher-pressure ranges from <strong>100 psi up to 5,000 psi \/ 345 bar<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>For most pressure ranges, Fluke specifies an accuracy of <strong>0.025% of full scale<\/strong>. The 5,000 psi high-pressure sensor is specified at <strong>0.035% FS<\/strong>. This combination of two independent pressure measurements in one portable calibrator can substantially simplify calibration work on gas flow computers, pressure transmitters and related process instrumentation. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>At <strong>europascal<\/strong>, the Fluke Calibration 721 can be combined with suitable pressure sources, pressure modules and calibration accessories for professional pressure measurement applications. For regular metrological traceability, use the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/?utm_source=chatgpt.com\">europascal Calibration Service<\/a>.<\/p>\n<h2>Your Benefits at a Glance<\/h2>\n<ul>\n<li>Dual isolated stainless-steel pressure sensors<\/li>\n<li>Simultaneous static and differential pressure measurement<\/li>\n<li>Designed especially for gas custody transfer applications<\/li>\n<li>Low-pressure sensor available with 16 psi or 36 psi range<\/li>\n<li>Seven selectable high-pressure ranges up to 5,000 psi \/ 345 bar<\/li>\n<li>Pressure accuracy down to 0.025% FS<\/li>\n<li>0 to 24 mA measurement<\/li>\n<li>Integrated 24 V loop power<\/li>\n<li>0 to 30 V DC measurement<\/li>\n<li>Pt100 RTD input for temperature measurement<\/li>\n<li>Optional Fluke 720RTD temperature probe<\/li>\n<li>Temperature measurement from -40 \u00b0C to 150 \u00b0C<\/li>\n<li>Support for external Fluke 750P pressure modules<\/li>\n<li>Large backlit graphic display<\/li>\n<li>Up to three measurement values displayed simultaneously<\/li>\n<li>Five instrument setups can be stored<\/li>\n<li>Numerous selectable pressure units<\/li>\n<li>More than 35 hours typical battery life<\/li>\n<li>Four standard AA batteries<\/li>\n<li>Compact handheld construction<\/li>\n<li>Suitable for field and laboratory calibration<\/li>\n<li>Traceable calibration certificate supplied with current listed configurations<\/li>\n<\/ul>\n<h2>Dual Pressure Sensors for Gas Custody Transfer<\/h2>\n<p>The defining feature of the <strong>Fluke Calibration 721<\/strong> is its combination of <strong>two isolated pressure sensors<\/strong> in one instrument.<\/p>\n<p>In gas custody-transfer applications, it is often necessary to measure a relatively small differential pressure while simultaneously monitoring a much higher static line pressure. The 721 is specifically designed for this task. Fluke describes it as a precision pressure calibrator for gas flow and custody-transfer applications, with simultaneous static and differential pressure measurement. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>This arrangement reduces the need for multiple separate pressure instruments and makes the calibrator particularly useful for servicing flow-computer installations and differential-pressure-based gas flow systems.<\/p>\n<p>The 721 itself should not be confused with a flow standard: it measures the pressure, electrical and optional temperature quantities required during calibration and verification of the associated instrumentation.<\/p>\n<h2>Selectable Low-Pressure Range<\/h2>\n<p>The low-pressure sensor can be selected in one of two configurations:<\/p>\n<p><strong>16 psi version:<\/strong> approximately -0.97 to +1.1 bar<\/p>\n<p><strong>36 psi version:<\/strong> approximately -0.97 to +2.48 bar.<\/p>\n<p>Both versions offer a fine pressure resolution of <strong>0.001 psi \/ 0.0001 bar<\/strong> and a specified accuracy of <strong>0.025% FS<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>The low-pressure channel is especially valuable when measuring relatively small pressure differences in gas flow applications.<\/p>\n<h2>High-Pressure Sensor up to 345 bar<\/h2>\n<p>In addition to the low-pressure channel, the Fluke Calibration 721 can be configured with one of seven higher-pressure sensors.<\/p>\n<p>Available nominal high-pressure ranges are:<\/p>\n<div>\n<div>\n<div>\n<table>\n<thead>\n<tr>\n<th>High-pressure range<\/th>\n<th>Approx. metric range<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>100 psi<\/td>\n<td>6.9 bar<\/td>\n<\/tr>\n<tr>\n<td>300 psi<\/td>\n<td>20.7 bar<\/td>\n<\/tr>\n<tr>\n<td>500 psi<\/td>\n<td>34.5 bar<\/td>\n<\/tr>\n<tr>\n<td>1,000 psi<\/td>\n<td>69 bar<\/td>\n<\/tr>\n<tr>\n<td>1,500 psi<\/td>\n<td>103.4 bar<\/td>\n<\/tr>\n<tr>\n<td>3,000 psi<\/td>\n<td>207 bar<\/td>\n<\/tr>\n<tr>\n<td>5,000 psi<\/td>\n<td>345 bar<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<p>Fluke&#8217;s international product information confirms the choice of seven high-pressure ranges up to 5,000 psi \/ 345 bar. <a href=\"https:\/\/www.fluke.com\/en\/product\/calibration-tools\/pressure-calibrators\/fluke-721?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>This broad range selection allows the <strong>Fluke Calibration 721<\/strong> to be configured for different gas transmission, process and industrial pressure applications.<\/p>\n<h2>Pressure Accuracy down to 0.025% FS<\/h2>\n<p>Pressure measurement accuracy is a central specification for any pressure calibrator.<\/p>\n<p>For the low-pressure sensors and most high-pressure versions, Fluke specifies:<\/p>\n<p><strong>0.025% of full scale<\/strong>.<\/p>\n<p>For the highest <strong>5,000 psi \/ 345 bar<\/strong> sensor, the one-year specification is:<\/p>\n<p><strong>0.035% of full scale<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>Selecting an appropriately sized pressure range is therefore important when the 721 is used as a calibration reference.<\/p>\n<h2>4\u201320 mA Measurement<\/h2>\n<p>Many pressure and differential-pressure transmitters used in process plants provide a standardized <strong>4\u201320 mA output signal<\/strong>.<\/p>\n<p>The Fluke Calibration 721 measures:<\/p>\n<p><strong>0 to 24 mA<\/strong><\/p>\n<p>with a resolution of:<\/p>\n<p><strong>0.001 mA<\/strong>.<\/p>\n<p>Fluke specifies the one-year mA accuracy as <strong>\u00b10.015% of reading \u00b10.002 mA<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>This allows the user to compare the measured pressure directly with the electrical output of a pressure transmitter.<\/p>\n<p>The capability is particularly useful for calibrating differential-pressure and static-pressure transmitters used as inputs to flow computers.<\/p>\n<h2>Integrated 24 V Loop Power<\/h2>\n<p>The <strong>Fluke Calibration 721<\/strong> incorporates a <strong>24 V loop power supply<\/strong> capable of supplying a transmitter under test.<\/p>\n<p>Fluke specifies the loop supply as:<\/p>\n<p><strong>24 V at 24 mA<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>A separate loop supply is therefore unnecessary for many common transmitter calibration tasks.<\/p>\n<p>Together, the 721 can measure pressure, power the transmitter and measure its current output, significantly simplifying a portable calibration setup.<\/p>\n<h2>DC Voltage Measurement<\/h2>\n<p>The Fluke Calibration 721 also measures DC voltage up to:<\/p>\n<p><strong>30 V DC<\/strong>.<\/p>\n<p>Resolution is:<\/p>\n<p><strong>0.001 V<\/strong><\/p>\n<p>and the specified accuracy is <strong>\u00b10.015% of reading \u00b10.002 V<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>This capability can be used for checking loop supplies and other process signals encountered during calibration and troubleshooting.<\/p>\n<h2>Pt100 Temperature Measurement<\/h2>\n<p>Pressure and temperature are closely related in gas measurement applications. The 721 therefore incorporates an input for a <strong>Pt100 RTD<\/strong>.<\/p>\n<p>With the optional <strong>Fluke 720RTD probe<\/strong>, temperature measurements can be integrated directly into the calibration procedure. Fluke specifies a temperature measurement range from:<\/p>\n<p><strong>-40 \u00b0C to 150 \u00b0C<\/strong><\/p>\n<p>with a resolution of:<\/p>\n<p><strong>0.01 \u00b0C<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>When used with the optional 720RTD probe, Fluke specifies a combined uncertainty of approximately <strong>\u00b10.25 \u00b0C<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>This additional measurement channel is particularly useful when pressure and temperature values must be evaluated together during gas custody-transfer calibration.<\/p>\n<h2>Three Measurements on One Display<\/h2>\n<p>The <strong>Fluke Calibration 721<\/strong> has a large backlit graphic display capable of showing <strong>up to three measurement inputs simultaneously<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>For example, an operator can monitor:<\/p>\n<p><strong>Low pressure + high pressure + temperature<\/strong><\/p>\n<p>or combine pressure information with the electrical signal from a transmitter.<\/p>\n<p>This makes it easier to observe how several process variables interact without repeatedly changing display modes.<\/p>\n<h2>Store Five Instrument Setups<\/h2>\n<p>The Fluke Calibration 721 can store <strong>five instrument configurations<\/strong> for later recall. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>This is particularly practical when the same types of instruments or flow-computer installations are serviced regularly.<\/p>\n<p>Frequently used configurations can be recalled instead of setting up every measurement parameter from scratch.<\/p>\n<p>The instrument also recalls the last-used configuration after power-up.<\/p>\n<h2>External Fluke 750P Pressure Modules<\/h2>\n<p>The internal dual sensors cover a wide range of pressure applications, but the flexibility of the Fluke Calibration 721 can be expanded further.<\/p>\n<p>The calibrator supports external <strong>Fluke 750P Series pressure modules<\/strong>. Fluke currently lists approximately 50 module ranges for the 750P family. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>An external module can be useful when:<\/p>\n<ul>\n<li>another pressure range is required,<\/li>\n<li>another pressure type is needed,<\/li>\n<li>an additional reference range is desirable,<\/li>\n<li>or the application extends beyond the installed internal sensors.<\/li>\n<\/ul>\n<p>The measurement capability depends on the pressure module selected.<\/p>\n<h2>Pressure Engineering Units<\/h2>\n<p>The <strong>Fluke Calibration 721<\/strong> supports numerous pressure engineering units, including psi, bar, mbar, kPa, kg\/cm\u00b2 and several water- and mercury-column units. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>This is useful when calibrating equipment from different manufacturers or working with installations that use different unit conventions.<\/p>\n<p>Direct unit selection also reduces the need for manual pressure conversions during field calibration.<\/p>\n<h2>Compact Handheld Design<\/h2>\n<p>Despite its dual pressure sensors and electrical and temperature measurement functions, the Fluke Calibration 721 remains a compact portable instrument.<\/p>\n<p>Fluke specifies dimensions of approximately:<\/p>\n<p><strong>20 \u00d7 11 \u00d7 5.8 cm<\/strong><\/p>\n<p>and a weight of approximately:<\/p>\n<p><strong>0.54 kg<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>The compact dimensions make the calibrator suitable for field service, while its integrated measurement functions reduce the number of separate instruments required.<\/p>\n<h2>Long Battery Life<\/h2>\n<p>The Fluke Calibration 721 operates from:<\/p>\n<p><strong>4 standard AA batteries<\/strong>.<\/p>\n<p>Typical battery life is specified as:<\/p>\n<p><strong>more than 35 hours<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>This makes the instrument well suited to mobile calibration work where a mains supply may not be readily available.<\/p>\n<p>Standard AA cells also simplify battery replacement during field use.<\/p>\n<h2>Environmental Specifications<\/h2>\n<p>The operating temperature range is:<\/p>\n<p><strong>-10 \u00b0C to +50 \u00b0C<\/strong>.<\/p>\n<p>Storage temperature without batteries is:<\/p>\n<p><strong>-20 \u00b0C to +60 \u00b0C<\/strong>.<\/p>\n<p>Maximum specified altitude is:<\/p>\n<p><strong>2,000 m<\/strong>.<\/p>\n<p>The housing is rated:<\/p>\n<p><strong>IP40<\/strong>. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>These specifications support the intended use of the 721 as a portable process calibration instrument.<\/p>\n<h2>Technical Data<\/h2>\n<div>\n<div>\n<div>\n<table>\n<thead>\n<tr>\n<th>Feature<\/th>\n<th>Fluke Calibration 721<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Device type<\/td>\n<td>Precision Pressure Calibrator<\/td>\n<\/tr>\n<tr>\n<td>Pressure sensors<\/td>\n<td>Two isolated stainless-steel sensors<\/td>\n<\/tr>\n<tr>\n<td>Low-pressure options<\/td>\n<td>16 psi \/ 1.1 bar or 36 psi \/ 2.48 bar<\/td>\n<\/tr>\n<tr>\n<td>High-pressure options<\/td>\n<td>100 to 5,000 psi<\/td>\n<\/tr>\n<tr>\n<td>Maximum internal pressure range<\/td>\n<td>5,000 psi \/ 345 bar<\/td>\n<\/tr>\n<tr>\n<td>Pressure accuracy<\/td>\n<td>0.025% FS for most ranges<\/td>\n<\/tr>\n<tr>\n<td>5,000 psi sensor accuracy<\/td>\n<td>0.035% FS<\/td>\n<\/tr>\n<tr>\n<td>Current measurement<\/td>\n<td>0 to 24 mA<\/td>\n<\/tr>\n<tr>\n<td>mA resolution<\/td>\n<td>0.001 mA<\/td>\n<\/tr>\n<tr>\n<td>Voltage measurement<\/td>\n<td>0 to 30 V DC<\/td>\n<\/tr>\n<tr>\n<td>Loop power<\/td>\n<td>24 V<\/td>\n<\/tr>\n<tr>\n<td>Temperature input<\/td>\n<td>Pt100 RTD<\/td>\n<\/tr>\n<tr>\n<td>Temperature range<\/td>\n<td>-40 \u00b0C to +150 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Optional probe<\/td>\n<td>Fluke 720RTD<\/td>\n<\/tr>\n<tr>\n<td>External pressure modules<\/td>\n<td>Fluke 750P Series<\/td>\n<\/tr>\n<tr>\n<td>Display<\/td>\n<td>Backlit graphical display<\/td>\n<\/tr>\n<tr>\n<td>Simultaneous display<\/td>\n<td>Up to three inputs<\/td>\n<\/tr>\n<tr>\n<td>Stored setups<\/td>\n<td>5<\/td>\n<\/tr>\n<tr>\n<td>Pressure connections<\/td>\n<td>2 \u00d7 1\/8 in NPT<\/td>\n<\/tr>\n<tr>\n<td>Battery<\/td>\n<td>4 \u00d7 AA<\/td>\n<\/tr>\n<tr>\n<td>Battery life<\/td>\n<td>&gt;35 h typical<\/td>\n<\/tr>\n<tr>\n<td>Dimensions<\/td>\n<td>Approx. 20 \u00d7 11 \u00d7 5.8 cm<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>Approx. 0.54 kg<\/td>\n<\/tr>\n<tr>\n<td>Operating temperature<\/td>\n<td>-10 \u00b0C to +50 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Protection<\/td>\n<td>IP40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<p>The specifications above are based on the current official Fluke product information. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<h2>Ideal for Gas Custody Transfer<\/h2>\n<p>The <strong>Fluke Calibration 721<\/strong> was developed with gas custody-transfer applications in mind. Custody-transfer measurement systems often rely on accurate measurement of differential pressure, static pressure and temperature.<\/p>\n<p>By combining two isolated pressure sensors and an optional Pt100 temperature channel, the 721 allows several important variables to be checked with one handheld instrument. <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>This makes it particularly suitable for calibration and verification work involving:<\/p>\n<ul>\n<li>Gas flow computers<\/li>\n<li>Differential-pressure transmitters<\/li>\n<li>Static-pressure transmitters<\/li>\n<li>Orifice-based gas flow measurement systems<\/li>\n<li>Natural-gas metering stations<\/li>\n<li>Process pressure instrumentation<\/li>\n<li>4\u201320 mA pressure transmitters<\/li>\n<li>Pressure sensors<\/li>\n<li>Field calibration<\/li>\n<li>Laboratory calibration<\/li>\n<\/ul>\n<h2>Scope of Delivery<\/h2>\n<p>Fluke currently lists the following items with the available 721 model configurations:<\/p>\n<p><strong>Soft carrying case, four AA batteries, manual, traceable calibration certificate and test leads.<\/strong> <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<p>The optional <strong>Fluke 720RTD Pt100 probe<\/strong> is required when temperature measurements are to be made with the calibrator.<\/p>\n<p>Compatible pressure pumps, hose kits and Fluke 750P pressure modules are also available separately. <a href=\"https:\/\/www.fluke.com\/en\/product\/calibration-tools\/pressure-calibrators\/fluke-721?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">Fluke<\/a><\/p>\n<h2>Calibration by europascal<\/h2>\n<p>Professional pressure calibration requires reliable metrological traceability. The <strong>Fluke Calibration 721<\/strong> combines several measurement quantities in a single instrument, making regular calibration particularly important when it is used as reference equipment for field verification.<\/p>\n<p>europascal offers professional calibration services for pressure measurement equipment and can also support customers with suitable pressure-generation and calibration solutions.<\/p>\n<p>For more information, visit the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/?utm_source=chatgpt.com\">europascal Calibration Service<\/a>.<\/p>\n<p>Further pressure calibration equipment is available in the <a href=\"https:\/\/europascal.de\/produkt-kategorie\/druck\/?utm_source=chatgpt.com\">europascal pressure technology section<\/a>. europascal currently lists a broad portfolio of pressure controllers, calibrators, modules, gauges and pressure-generation equipment. <a href=\"https:\/\/europascal.de\/produkt-kategorie\/druck\/?utm_source=chatgpt.com\">europascal.de<\/a><\/p>\n<h2>Why Choose the Fluke Calibration 721?<\/h2>\n<p>The <strong>Fluke Calibration 721<\/strong> is an especially strong solution when several process variables must be measured during one calibration task.<\/p>\n<p>Its two isolated pressure sensors allow low differential pressure and high static pressure to be monitored simultaneously. Depending on configuration, the instrument covers high-pressure measurement up to <strong>345 bar<\/strong>, while most sensor ranges provide <strong>0.025% FS accuracy<\/strong>.<\/p>\n<p>The additional 0\u201324 mA measurement, 24 V loop power and 0\u201330 V DC measurement functions make it possible to test common industrial pressure transmitters without carrying several additional electrical instruments.<\/p>\n<p>For gas flow applications, the optional Pt100 input adds temperature measurement from -40 \u00b0C to 150 \u00b0C. The large backlit display can show up to three inputs at once, while five stored setups speed up recurring calibration work.<\/p>\n<p>With its compact handheld format, more than 35 hours of typical battery operation and compatibility with Fluke 750P modules, the Fluke Calibration 721 is a flexible solution for field service, process calibration and gas custody-transfer applications.<\/p>\n<p><a href=\"https:\/\/europascal.de\/marke\/fluke-calibration\/?utm_source=chatgpt.com\">Further products from Fluke Calibration can be found here.<\/a><\/p>\n<p>Manufacturer information about the <strong>Fluke Calibration 721<\/strong> can be found on the <a href=\"https:\/\/www.fluke.com\/en-us\/product\/calibration-tools\/pressure-calibrators\/fluke-721?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">official Fluke website<\/a>.<\/p>\n<p><a class=\"download-datasheet\" href=\"#\" data-pdf=\"https:\/\/europascal.de\/wp-content\/uploads\/2026\/07\/Fluke-721-721ExPressure-Calibrator.pdf\"> <span style=\"color: #0000ff;\"><strong><em>Download Datasheet<\/em><\/strong><\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>Fluke Calibration 721<\/strong> is a precise dual-sensor pressure calibrator for gas custody-transfer and process applications. Two isolated pressure sensors enable simultaneous static and differential pressure measurement with ranges up to <strong>5,000 psi \/ 345 bar<\/strong> and accuracy down to <strong>0.025% FS<\/strong>. The 721 also measures 0\u201324 mA and 0\u201330 V DC, supplies 24 V loop power and supports optional Pt100 temperature measurement and Fluke 750P pressure modules.<\/p>\n","protected":false},"featured_media":4748,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_members_access_role":[],"_members_access_error":""},"product_brand":[4582],"product_cat":[45,47],"product_tag":[5721,5735,4201,4225,4254,5736,4203,5737,5738,4601,5388,4395,5728,4227,5172,4593,4791,5739],"class_list":["post-6744","product","type-product","status-publish","has-post-thumbnail","product_brand-fluke-2","product_cat-pressure","product_cat-pressure-controller-calibrator-indicator","product_tag-24-v-loop-power","product_tag-custody-transfer","product_tag-druckkalibrator","product_tag-druckkalibrierung","product_tag-druckmesstechnik","product_tag-druckmessumformer","product_tag-drucktransmitter-kalibrieren","product_tag-fluke-721","product_tag-fluke-calibration-721","product_tag-fluke-druckmodule","product_tag-gasdurchfluss-kalibrierung","product_tag-kalibriertechnik","product_tag-ma-messung","product_tag-mobile-druckkalibrierung","product_tag-praezisions-druckkalibrator","product_tag-prozesskalibrator","product_tag-pt100-messung","product_tag-zweikanal-druckkalibrator","pa_bauart-handgeraet","pa_datenlogger-nein","pa_druckbereich-vakuum--1-bar--20-bar--100-bar--400-bar","pa_genauigkeit--0025-fs","pa_hart-kommunikation-nein","pa_kanaele-druck-strom-schleifenstrom-spannung-temperatur","pa_manometer-typen-differnz-druck-relativ-druck","pa_strom-versorgung-batterie","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","product-type-simple"],"_links":{"self":[{"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/product\/6744","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/media\/4748"}],"wp:attachment":[{"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/media?parent=6744"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/product_brand?post=6744"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/product_cat?post=6744"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/product_tag?post=6744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}