{"id":6696,"date":"2026-07-17T15:58:58","date_gmt":"2026-07-17T15:58:58","guid":{"rendered":"https:\/\/europascal.de\/product\/fluke-calibration-rpm4-ad\/"},"modified":"2026-10-05T10:18:32","modified_gmt":"2026-10-05T10:18:32","slug":"fluke-calibration-rpm4-ad","status":"publish","type":"product","link":"https:\/\/europascal.de\/en\/product\/fluke-calibration-rpm4-ad\/","title":{"rendered":"Fluke Calibration RPM4 AD Precise Air Data Pressure Monitor"},"content":{"rendered":"<p><strong>Fluke Calibration RPM4 AD<\/strong> is a precise reference pressure monitor specifically configured for air data calibration and high-performance measurement of pitot and static pressures. Based on Fluke Calibration&#8217;s RPM4 reference pressure monitor platform and its quartz reference pressure transducer technology, the RPM4 AD provides direct measurement and display of <strong>Pt, Ps and Qc<\/strong>, as well as calculated altitude and airspeed values.<\/p>\n<p>Designed for aerospace and avionics calibration applications, the RPM4 AD can display altitude in feet or meters and airspeed in knots, mph, km\/h and Mach. Conventional pressure units are also available, allowing the instrument to function as both a specialized air data reference and a high-performance pressure monitor.<\/p>\n<p>Two configurations were offered for different aircraft applications: the <strong>RPM4 AD A160K\/A160K<\/strong> for rotary-wing applications and the <strong>RPM4 AD A350K\/A160K<\/strong> for fixed-wing applications. Depending on configuration, altitude ranges extend to <strong>100,000 ft \/ 30,000 m<\/strong> and airspeed measurement extends to <strong>1,100 knots \/ 2,040 km\/h<\/strong> at sea level.<\/p>\n<p>The RPM4 AD uses high-performance <strong>Q-RPT quartz reference pressure transducers<\/strong> for accurate measurement of static and total pressure. The instrument also includes Fluke Calibration&#8217;s <strong>Self Defense System (SDS\u2122)<\/strong>, which automatically isolates the sensitive Q-RPTs from the Ps and Pt test ports and vents them to atmosphere when necessary to protect the reference transducers against excessive pressure.<\/p>\n<p>Automated rate measurement and leak testing functions simplify air data calibration procedures. RS232 and IEEE-488.2 communication interfaces enable integration into automated calibration systems.<\/p>\n<p>The <strong>Fluke Calibration RPM4 AD is discontinued<\/strong>. Fluke Calibration identifies the <strong>7750i Air Data Test Set<\/strong> as the replacement product. Nevertheless, existing RPM4 AD systems remain relevant in calibration laboratories where they continue to be used as high-performance air data reference pressure monitors.<\/p>\n<p>At <strong>europascal<\/strong>, the Fluke Calibration RPM4 AD can be integrated into professional pressure and air data calibration environments. For professional calibration and metrological traceability, visit the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal Calibration Service<\/a>.<\/p>\n<h2>Your Benefits at a Glance<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> combines high-accuracy reference pressure measurement with dedicated air data functionality.<\/p>\n<p>Key features include:<\/p>\n<ul>\n<li>Reference pressure monitor for air data calibration<\/li>\n<li>Dedicated air data configuration<\/li>\n<li>True Pt measurement<\/li>\n<li>True Ps measurement<\/li>\n<li>Qc differential pressure measurement<\/li>\n<li>Direct altitude indication<\/li>\n<li>Direct airspeed indication<\/li>\n<li>Altitude displayed in feet or meters<\/li>\n<li>Airspeed displayed in knots, mph, km\/h or Mach<\/li>\n<li>Conventional pressure units<\/li>\n<li>Q-RPT quartz reference pressure transducers<\/li>\n<li>Transfer-standard-level measurement performance<\/li>\n<li>Resolution adjustable to 1 ppm<\/li>\n<li>Automated pressure rate measurement<\/li>\n<li>User-selectable rate measurement sample time<\/li>\n<li>Automated leak check<\/li>\n<li>Self Defense System SDS\u2122<\/li>\n<li>Automatic Q-RPT overpressure protection<\/li>\n<li>Fixed-wing configuration available<\/li>\n<li>Rotary-wing configuration available<\/li>\n<li>RS232 communication<\/li>\n<li>IEEE-488.2 communication<\/li>\n<li>Suitable for automated calibration systems<\/li>\n<li>Compact laboratory design<\/li>\n<li>Optional 19-inch rack mounting<\/li>\n<li>Designed for professional aerospace calibration<\/li>\n<li>Clean, dry, non-corrosive gas as operating medium<\/li>\n<\/ul>\n<h2>Air Data Calibration<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> was developed specifically for professional air data calibration.<\/p>\n<p>Air data systems determine important flight parameters from pressure measurements.<\/p>\n<p>Two fundamental pressure quantities are:<\/p>\n<p><strong>Ps = Static Pressure<\/strong><\/p>\n<p>and<\/p>\n<p><strong>Pt = Total Pressure or Pitot Pressure<\/strong>.<\/p>\n<p>From these pressure quantities, additional air data parameters can be determined.<\/p>\n<p>One particularly important quantity is:<\/p>\n<p><strong>Qc = Pt \u2212 Ps<\/strong><\/p>\n<p>which represents the impact or differential pressure used for airspeed determination.<\/p>\n<p>The RPM4 AD measures these pressure quantities with dedicated high-performance reference transducers.<\/p>\n<h2>Pt \u2013 Total Pressure<\/h2>\n<p><strong>Pt<\/strong> represents total pressure measured by the pitot system.<\/p>\n<p>It contains the static pressure component together with the pressure component caused by aircraft motion through the air.<\/p>\n<p>Accurate Pt measurement is therefore essential when calibrating airspeed measurement systems.<\/p>\n<p>The RPM4 AD provides a dedicated Pt connection and corresponding internal reference measurement.<\/p>\n<h2>Ps \u2013 Static Pressure<\/h2>\n<p><strong>Ps<\/strong> represents static atmospheric pressure.<\/p>\n<p>Static pressure is one of the fundamental quantities used to determine aircraft altitude.<\/p>\n<p>As altitude increases, atmospheric pressure decreases.<\/p>\n<p>By measuring static pressure accurately and applying the appropriate standard atmosphere relationship, the RPM4 AD can display the corresponding altitude directly.<\/p>\n<h2>Qc \u2013 Impact Pressure<\/h2>\n<p>The difference between total and static pressure is:<\/p>\n<p><strong>Qc = Pt \u2212 Ps<\/strong><\/p>\n<p>The RPM4 AD supports true Qc measurement using its internal Q-RPT configuration.<\/p>\n<p>This differential pressure is fundamental to determining indicated airspeed.<\/p>\n<p>The ability to work directly with Pt, Ps and Qc makes the RPM4 AD substantially different from a conventional reference pressure monitor.<\/p>\n<h2>Direct Altitude Display<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> converts pressure measurement into air data values and can directly display:<\/p>\n<p><strong>Altitude in feet<\/strong><\/p>\n<p>or<\/p>\n<p><strong>Altitude in meters<\/strong>.<\/p>\n<p>This eliminates the need for the operator to manually convert static pressure into altitude during routine air data calibration.<\/p>\n<h2>Direct Airspeed Display<\/h2>\n<p>The RPM4 AD can also directly display airspeed.<\/p>\n<p>Supported airspeed units include:<\/p>\n<ul>\n<li>knots<\/li>\n<li>mph<\/li>\n<li>km\/h<\/li>\n<li>Mach<\/li>\n<\/ul>\n<p>This makes the instrument convenient for calibration and testing of aircraft air data instruments.<\/p>\n<h2>Rotary-Wing Version<\/h2>\n<p>For rotary-wing applications, Fluke offered the:<\/p>\n<p><strong>RPM4 AD A160K\/A160K<\/strong>.<\/p>\n<p>This configuration uses a 160 kPa absolute Ps range and a 160 kPa absolute Pt range.<\/p>\n<p>The resulting Qc range at sea level is:<\/p>\n<p><strong>60 kPa \/ 8.7 psi<\/strong>.<\/p>\n<p>The specified altitude range is:<\/p>\n<p><strong>\u221213,000 ft to 66,000 ft<\/strong><\/p>\n<p>or:<\/p>\n<p><strong>\u22124,000 m to 20,000 m<\/strong>.<\/p>\n<p>The specified sea-level airspeed range extends to:<\/p>\n<p><strong>550 knots<\/strong><\/p>\n<p>or approximately:<\/p>\n<p><strong>1,020 km\/h<\/strong>.<\/p>\n<p>This configuration is optimized for rotary-wing aircraft applications.<\/p>\n<h2>Fixed-Wing Version<\/h2>\n<p>For higher airspeed fixed-wing applications, Fluke offered the:<\/p>\n<p><strong>RPM4 AD A350K\/A160K<\/strong>.<\/p>\n<p>The static pressure channel uses a:<\/p>\n<p><strong>160 kPa absolute Q-RPT<\/strong>,<\/p>\n<p>while the higher-range total pressure channel extends to:<\/p>\n<p><strong>350 kPa absolute<\/strong>.<\/p>\n<p>The resulting Qc capability at sea level extends to:<\/p>\n<p><strong>250 kPa \/ 36 psi<\/strong>.<\/p>\n<p>The altitude range extends to:<\/p>\n<p><strong>100,000 ft \/ 30,000 m<\/strong>.<\/p>\n<p>The sea-level airspeed range extends to:<\/p>\n<p><strong>1,100 knots \/ approximately 2,040 km\/h<\/strong>.<\/p>\n<p>This makes the RPM4 AD A350K\/A160K suitable for high-performance fixed-wing air data calibration.<\/p>\n<h2>Q-RPT Technology<\/h2>\n<p>The measurement performance of the <strong>Fluke Calibration RPM4 AD<\/strong> is based on Fluke Calibration&#8217;s:<\/p>\n<p><strong>Q-RPT Quartz Reference Pressure Transducer technology<\/strong>.<\/p>\n<p>Q-RPTs are high-performance reference pressure transducers designed for precision pressure metrology.<\/p>\n<p>They provide the stability, repeatability and resolution required for use as laboratory reference instruments and transfer standards.<\/p>\n<h2>High Measurement Performance<\/h2>\n<p>The RPM4 AD was designed to provide transfer-standard-level measurement performance.<\/p>\n<p>Depending on the installed Q-RPT configuration and measurement mode, Fluke specifies uncertainties down to approximately:<\/p>\n<p><strong>\u00b10.006% of reading<\/strong><\/p>\n<p>for selected operating conditions.<\/p>\n<p>Other configurations have different reading-based and absolute minimum uncertainty specifications.<\/p>\n<p>The applicable specification must therefore always be selected according to the exact RPM4 AD configuration and measurement mode.<\/p>\n<h2>Resolution to 1 ppm<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> provides measurement resolution:<\/p>\n<p><strong>to 1 ppm<\/strong>.<\/p>\n<p>The displayed resolution is user adjustable.<\/p>\n<p>This allows the instrument to be configured according to the required measurement application.<\/p>\n<h2>Parallel Measurement<\/h2>\n<p>The RPM4 AD A160K\/A160K rotary-wing configuration contains two identical Q-RPT ranges.<\/p>\n<p>This enables parallel measurement operation.<\/p>\n<p>Comparing the two Q-RPTs can help identify possible transducer drift between calibrations.<\/p>\n<p>This provides an additional level of confidence when the RPM4 AD is used as a high-performance transfer reference.<\/p>\n<h2>AutoZero<\/h2>\n<p>Q-RPT measurement performance is supported by Fluke Calibration&#8217;s AutoZero concept.<\/p>\n<p>Depending on the operating mode, zeroing can be performed against zero pressure, another Q-RPT or an appropriate barometric reference.<\/p>\n<p>Regular AutoZero operation contributes to maintaining the measurement performance of the RPM4 AD.<\/p>\n<h2>Self Defense System SDS\u2122<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> incorporates the:<\/p>\n<p><strong>Self Defense System SDS\u2122<\/strong>.<\/p>\n<p>The Q-RPTs used for precision pressure measurement are sensitive reference devices.<\/p>\n<p>The SDS protects these transducers against accidental excessive pressure.<\/p>\n<p>When protection is required, the system isolates the Q-RPTs from the Pt and Ps test connections and vents the reference transducers to atmosphere.<\/p>\n<h2>Overpressure Protection<\/h2>\n<p>The SDS provides substantial protection against accidental overpressure.<\/p>\n<p>Fluke specifies SDS protection up to:<\/p>\n<p><strong>10 MPa \/ 1,500 psi<\/strong>.<\/p>\n<p>The normal operating limits of the individual Q-RPTs and the complete RPM4 AD system must nevertheless always be observed.<\/p>\n<h2>Automated Rate Measurement<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> includes automated pressure rate measurement.<\/p>\n<p>The operator can define the required sample time.<\/p>\n<p>This is useful when testing air data equipment under controlled pressure-change conditions.<\/p>\n<p>Rate measurement can be important when evaluating the dynamic response of aviation pressure instruments.<\/p>\n<h2>Automated Leak Check<\/h2>\n<p>Another integrated function is:<\/p>\n<p><strong>automated leak checking<\/strong>.<\/p>\n<p>Leakage can significantly influence air data calibration because even small leaks in the pneumatic system can cause pressure drift.<\/p>\n<p>The automated leak test helps the operator evaluate system integrity before or during a calibration procedure.<\/p>\n<h2>Clean, Dry Gas Operation<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> is designed for:<\/p>\n<p><strong>clean, dry, non-corrosive gas<\/strong>.<\/p>\n<p>Contamination of the pressure system should be avoided.<\/p>\n<p>Oil, water and aggressive gases are not appropriate operating media for the standard air data configuration.<\/p>\n<p>This is particularly important for maintaining the performance and reliability of the precision Q-RPTs.<\/p>\n<h2>Pressure Connections<\/h2>\n<p>The Pt and Ps test connections are:<\/p>\n<p><strong>AN-4 male, 37\u00b0 flare<\/strong>.<\/p>\n<p>The VENT and ATM connections use:<\/p>\n<p><strong>10-32 UNF<\/strong>.<\/p>\n<p>These connections reflect the RPM4 AD&#8217;s specialization for aviation and air data applications.<\/p>\n<h2>RS232 Communication<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> provides two RS232 communication ports.<\/p>\n<p>These interfaces allow communication with computers and compatible calibration systems.<\/p>\n<p>This enables remote instrument operation and integration into automated procedures.<\/p>\n<h2>IEEE-488.2 Interface<\/h2>\n<p>In addition to RS232, the RPM4 AD supports:<\/p>\n<p><strong>IEEE-488.2 \/ GPIB<\/strong>.<\/p>\n<p>GPIB remains widely used in professional calibration laboratories and automated measurement systems.<\/p>\n<p>The combination of RS232 and IEEE-488.2 provides flexible integration with existing calibration equipment.<\/p>\n<h2>Automated Calibration Systems<\/h2>\n<p>The remote communication capabilities make the <strong>Fluke Calibration RPM4 AD<\/strong> suitable for automated air data calibration.<\/p>\n<p>An external computer can be used to:<\/p>\n<ul>\n<li>Read pressure values<\/li>\n<li>Read air data values<\/li>\n<li>Configure measurement functions<\/li>\n<li>Initiate measurement sequences<\/li>\n<li>Perform leak checks<\/li>\n<li>Record calibration data<\/li>\n<\/ul>\n<p>This can improve repeatability and efficiency in laboratories performing large numbers of air data calibrations.<\/p>\n<h2>Laboratory and Transfer Standard Applications<\/h2>\n<p>The RPM4 AD combines laboratory-level pressure measurement performance with a compact enclosure.<\/p>\n<p>Typical applications include:<\/p>\n<ul>\n<li>Air data calibration laboratories<\/li>\n<li>Avionics maintenance facilities<\/li>\n<li>Aerospace manufacturing<\/li>\n<li>Aircraft maintenance<\/li>\n<li>Pitot-static instrument calibration<\/li>\n<li>Transfer standard applications<\/li>\n<li>Research and development<\/li>\n<li>Automated calibration systems<\/li>\n<\/ul>\n<h2>Compact Construction<\/h2>\n<p>Despite its dual-channel precision measurement system, the RPM4 AD has compact dimensions of approximately:<\/p>\n<p><strong>10 cm \u00d7 22.7 cm \u00d7 24 cm<\/strong><\/p>\n<p>and weighs approximately:<\/p>\n<p><strong>5 kg<\/strong>.<\/p>\n<p>This makes the instrument suitable for both permanent laboratory installation and transport between calibration locations.<\/p>\n<h2>19-Inch Rack Installation<\/h2>\n<p>A rack mount kit was available for installation in a standard:<\/p>\n<p><strong>19-inch equipment rack<\/strong>.<\/p>\n<p>This is useful for integrating the RPM4 AD into complete automated air data calibration systems.<\/p>\n<h2>Power Supply<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> operates from:<\/p>\n<p><strong>85 to 264 VAC, 50\/60 Hz<\/strong><\/p>\n<p>with maximum consumption of approximately:<\/p>\n<p><strong>25 VA<\/strong>.<\/p>\n<p>Operation from:<\/p>\n<p><strong>12 VDC<\/strong><\/p>\n<p>is also supported.<\/p>\n<h2>Operating Temperature<\/h2>\n<p>The specified normal operating temperature range is:<\/p>\n<p><strong>15\u00b0C to 35\u00b0C<\/strong>.<\/p>\n<p>For optimum measurement performance after a cold start, Fluke recommends an appropriate stabilization period before precision measurements are performed.<\/p>\n<h2>Technical Highlights<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>Fluke Calibration RPM4 AD<\/th>\n<\/tr>\n<tr>\n<td>Product type<\/td>\n<td>Air Data Reference Pressure Monitor<\/td>\n<\/tr>\n<tr>\n<td>Measurement quantities<\/td>\n<td>Pt, Ps, Qc<\/td>\n<\/tr>\n<tr>\n<td>Air data outputs<\/td>\n<td>Altitude and airspeed<\/td>\n<\/tr>\n<tr>\n<td>Pressure technology<\/td>\n<td>Q-RPT Quartz Reference Pressure Transducers<\/td>\n<\/tr>\n<tr>\n<td>Rotary-wing model<\/td>\n<td>RPM4 AD A160K\/A160K<\/td>\n<\/tr>\n<tr>\n<td>Fixed-wing model<\/td>\n<td>RPM4 AD A350K\/A160K<\/td>\n<\/tr>\n<tr>\n<td>Ps range<\/td>\n<td>Up to 160 kPa absolute<\/td>\n<\/tr>\n<tr>\n<td>Pt range<\/td>\n<td>Up to 350 kPa absolute<\/td>\n<\/tr>\n<tr>\n<td>Qc range<\/td>\n<td>Up to 250 kPa differential<\/td>\n<\/tr>\n<tr>\n<td>Maximum altitude<\/td>\n<td>100,000 ft \/ 30,000 m<\/td>\n<\/tr>\n<tr>\n<td>Maximum airspeed<\/td>\n<td>1,100 knots \/ 2,040 km\/h<\/td>\n<\/tr>\n<tr>\n<td>Resolution<\/td>\n<td>To 1 ppm, adjustable<\/td>\n<\/tr>\n<tr>\n<td>Protection<\/td>\n<td>SDS\u2122 Self Defense System<\/td>\n<\/tr>\n<tr>\n<td>SDS protection<\/td>\n<td>Up to 10 MPa \/ 1,500 psi<\/td>\n<\/tr>\n<tr>\n<td>Operating medium<\/td>\n<td>Clean, dry, non-corrosive gas<\/td>\n<\/tr>\n<tr>\n<td>Pt \/ Ps connections<\/td>\n<td>AN-4 male, 37\u00b0 flare<\/td>\n<\/tr>\n<tr>\n<td>Communication<\/td>\n<td>RS232 and IEEE-488.2<\/td>\n<\/tr>\n<tr>\n<td>Operating temperature<\/td>\n<td>15\u00b0C to 35\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>Approx. 5 kg<\/td>\n<\/tr>\n<tr>\n<td>Dimensions<\/td>\n<td>Approx. 10 \u00d7 22.7 \u00d7 24 cm<\/td>\n<\/tr>\n<tr>\n<td>Product status<\/td>\n<td>Discontinued<\/td>\n<\/tr>\n<tr>\n<td>Fluke successor<\/td>\n<td>7750i Air Data Test Set<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>RPM4 AD vs. Standard RPM4<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> should not be confused with the standard RPM4 Reference Pressure Monitor.<\/p>\n<p>The standard RPM4 is a general-purpose precision reference pressure monitor available with numerous Q-RPT pressure ranges.<\/p>\n<p>The RPM4 AD is a specialized configuration for:<\/p>\n<p><strong>air data calibration<\/strong>.<\/p>\n<p>It is optimized for simultaneous static and total pressure measurement and provides direct Pt, Ps and Qc functionality together with altitude and airspeed calculations.<\/p>\n<p>For aviation applications, these dedicated air data functions make the RPM4 AD substantially more convenient than a conventional pressure monitor.<\/p>\n<h2>Rotary-Wing vs. Fixed-Wing Configuration<\/h2>\n<p>The correct <strong>Fluke Calibration RPM4 AD<\/strong> configuration depends on the application.<\/p>\n<p>The:<\/p>\n<p><strong>RPM4 AD A160K\/A160K<\/strong><\/p>\n<p>configuration is intended primarily for rotary-wing applications and covers airspeed to 550 knots and altitude to 66,000 ft.<\/p>\n<p>The:<\/p>\n<p><strong>RPM4 AD A350K\/A160K<\/strong><\/p>\n<p>configuration is intended for fixed-wing applications and extends the airspeed capability to 1,100 knots and altitude to 100,000 ft.<\/p>\n<p>The fixed-wing configuration therefore provides the larger Pt and Qc measurement ranges required for higher aircraft speeds.<\/p>\n<h2>Typical Applications<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> is suitable for:<\/p>\n<ul>\n<li>Air data calibration<\/li>\n<li>Pitot-static calibration<\/li>\n<li>Altimeter calibration<\/li>\n<li>Airspeed indicator calibration<\/li>\n<li>Aircraft instrument testing<\/li>\n<li>Avionics calibration<\/li>\n<li>Aviation pressure measurement<\/li>\n<li>Pt measurement<\/li>\n<li>Ps measurement<\/li>\n<li>Qc differential pressure measurement<\/li>\n<li>Altitude measurement<\/li>\n<li>Airspeed measurement<\/li>\n<li>Fixed-wing aircraft applications<\/li>\n<li>Rotary-wing aircraft applications<\/li>\n<li>Aerospace manufacturing<\/li>\n<li>Aircraft maintenance<\/li>\n<li>Calibration laboratories<\/li>\n<li>Transfer standard applications<\/li>\n<li>Automated pressure calibration<\/li>\n<li>Research and development<\/li>\n<\/ul>\n<h2>Discontinued Product<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD is discontinued<\/strong>.<\/p>\n<p>Fluke Calibration identifies the:<\/p>\n<p><strong>Fluke Calibration 7750i Air Data Test Set<\/strong><\/p>\n<p>as its successor.<\/p>\n<p>For existing RPM4 AD systems, the original documentation and operating instructions remain important for maintenance and continued use.<\/p>\n<p>For new air data calibration systems, the current Fluke Calibration 7750i platform should be considered.<\/p>\n<h2>Why Choose the Fluke Calibration RPM4 AD?<\/h2>\n<p>The <strong>Fluke Calibration RPM4 AD<\/strong> was developed specifically for high-performance air data pressure measurement rather than general-purpose pressure indication.<\/p>\n<p>Its dedicated Pt, Ps and Qc functionality enables direct measurement of the pressure quantities required for pitot-static and air data calibration.<\/p>\n<p>Altitude and airspeed can be displayed directly in aviation-specific units, reducing the need for external pressure-to-air-data conversions.<\/p>\n<p>High-performance Q-RPT quartz reference pressure transducers provide transfer-standard-level measurement performance, while the integrated SDS\u2122 Self Defense System protects the sensitive reference sensors against accidental overpressure.<\/p>\n<p>Separate rotary-wing and fixed-wing configurations provide measurement ranges appropriate for different aircraft applications.<\/p>\n<p>Automated rate measurement and leak checking simplify calibration procedures, while RS232 and IEEE-488.2 communication interfaces support integration into automated laboratory systems.<\/p>\n<p>Although the RPM4 AD has been discontinued, existing instruments remain valuable high-performance air data reference pressure monitors. For new installations, Fluke Calibration identifies the <strong>7750i Air Data Test Set<\/strong> as the successor.<\/p>\n<p>At <strong>europascal<\/strong>, we support professional pressure measurement and calibration solutions for laboratory, aerospace and industrial applications.<\/p>\n<p>For professional calibration and metrological traceability, visit the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal Calibration Service<\/a>.<\/p>\n<p>Further products from <strong>Fluke Calibration<\/strong> are available from europascal.<\/p>\n<p>Manufacturer information about the <strong>Fluke Calibration RPM4 AD<\/strong> and current air data calibration solutions is available on the official Fluke Calibration website.<\/p>\n<p><a class=\"download-datasheet\" href=\"#\" data-pdf=\"https:\/\/europascal.de\/wp-content\/uploads\/2026\/07\/Fluke-RPM4-AD-Reference-Pressure-Monitor-Air-Data-Version.pdf\"><span style=\"color: #0000ff;\"><strong><em>Download Datasheet<\/em><\/strong><\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The <strong>Fluke Calibration RPM4 AD<\/strong> is a precise air data reference pressure monitor for measurement of <strong>Pt, Ps and Qc<\/strong> with direct indication of altitude and airspeed. Dedicated rotary-wing and fixed-wing configurations cover altitudes up to <strong>100,000 ft \/ 30,000 m<\/strong> and airspeeds up to <strong>1,100 knots<\/strong>. Q-RPT technology, automated leak testing and SDS\u2122 overpressure protection make the RPM4 AD ideal for professional air data calibration. The RPM4 AD is discontinued; Fluke Calibration identifies the 7750i Air Data Test Set as its successor.<\/p>\n","protected":false},"featured_media":6697,"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 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