{"id":7288,"date":"2026-07-17T15:51:05","date_gmt":"2026-07-17T15:51:05","guid":{"rendered":"https:\/\/europascal.de\/product\/additel-adt-761a-500\/"},"modified":"2026-10-22T08:55:05","modified_gmt":"2026-10-22T08:55:05","slug":"additel-adt-761a-500","status":"publish","type":"product","link":"https:\/\/europascal.de\/en\/product\/additel-adt-761a-500\/","title":{"rendered":"Additel ADT 761A-500 Precise Automatic Pressure Calibrator"},"content":{"rendered":"<p>The <strong>Additel ADT 761A-500 Automatic Pressure Calibrator<\/strong> is a portable, fully automated pneumatic pressure calibration system designed for professional laboratory and field applications. It combines automatic pressure generation, precision pressure measurement, closed-loop pressure control, electrical process calibration and advanced communication functions in one compact instrument.<\/p>\n<p>The ADT 761A-500 automatically generates and controls pressure from vacuum up to:<\/p>\n<p><strong>500 psig<\/strong><\/p>\n<p>or:<\/p>\n<p><strong>35 bar(g)<\/strong><\/p>\n<p>Its operating range extends from approximately:<\/p>\n<p><strong>-13 to 500 psig<\/strong><\/p>\n<p>or:<\/p>\n<p><strong>-0.9 to 35 bar(g)<\/strong><\/p>\n<p>An integrated barometric reference enables the ADT 761A-500 to operate with both:<\/p>\n<p><strong>Gauge Pressure<\/strong><\/p>\n<p>and:<\/p>\n<p><strong>Absolute Pressure<\/strong><\/p>\n<p>Depending on the selected internal pressure module, pressure accuracy of:<\/p>\n<p><strong>0.01 % FS<\/strong><\/p>\n<p>or:<\/p>\n<p><strong>0.02 % FS<\/strong><\/p>\n<p>is available.<\/p>\n<p>Pressure control stability is specified as:<\/p>\n<p><strong>0.003 % FS<\/strong><\/p>\n<p>The ADT 761A-500 can accommodate <strong>two removable internal pressure modules<\/strong>, allowing the instrument to combine its 500 psi high-pressure capability with a second lower-range module. This is particularly useful when devices with significantly different measuring ranges need to be calibrated with the same automatic pressure calibrator.<\/p>\n<p>In addition to pressure generation and measurement, the ADT761A platform provides electrical process functions, 24 V loop power, pressure switch testing, HART and PROFIBUS PA communication, task documentation and integrated data logging.<\/p>\n<p>The <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal calibration service<\/a> provides professional calibration solutions for automatic pressure calibrators, pressure controllers, pressure modules, digital pressure gauges, pressure transmitters and pressure sensors.<\/p>\n<h2>Your Benefits at a Glance<\/h2>\n<p>The <strong>Additel ADT 761A-500 Automatic Pressure Calibrator<\/strong> provides:<\/p>\n<ul>\n<li>Fully automatic pneumatic pressure generation<\/li>\n<li>Integrated electric pressure pump<\/li>\n<li>Pressure generation from vacuum to 35 bar<\/li>\n<li>Maximum positive pressure of 500 psig<\/li>\n<li>Gauge pressure measurement<\/li>\n<li>Absolute pressure measurement<\/li>\n<li>Integrated barometric reference<\/li>\n<li>Pressure accuracy of 0.01 % FS or 0.02 % FS<\/li>\n<li>Pressure control stability of 0.003 % FS<\/li>\n<li>Two removable internal pressure modules<\/li>\n<li>Configurable lower-range internal module<\/li>\n<li>Two external pressure module connections<\/li>\n<li>Automatic closed-loop pressure control<\/li>\n<li>Electrical process measurement<\/li>\n<li>mA and voltage measurement<\/li>\n<li>mA source and simulation<\/li>\n<li>24 V loop power<\/li>\n<li>Pressure switch testing<\/li>\n<li>HART communication<\/li>\n<li>PROFIBUS PA communication<\/li>\n<li>Task documentation<\/li>\n<li>Integrated data logging<\/li>\n<li>Wi-Fi<\/li>\n<li>Bluetooth<\/li>\n<li>USB<\/li>\n<li>Ethernet<\/li>\n<li>Rechargeable battery<\/li>\n<li>Suitable for laboratory and field calibration<\/li>\n<\/ul>\n<h2>Automatic Pressure Generation up to 35 bar<\/h2>\n<p>The <strong>Additel ADT 761A-500<\/strong> automatically generates pneumatic pressure from vacuum conditions up to:<\/p>\n<p><strong>35 bar(g)<\/strong><\/p>\n<p>or:<\/p>\n<p><strong>500 psig<\/strong><\/p>\n<p>The integrated electric pump means that an external hand pump is not required for normal pressure generation within the instrument&#8217;s operating range.<\/p>\n<p>The operator enters the required pressure setpoint and the ADT 761A-500 automatically generates, adjusts and stabilizes the pressure.<\/p>\n<p>This replaces many of the components traditionally required for a pneumatic calibration setup, such as:<\/p>\n<ul>\n<li>Manual pressure pump<\/li>\n<li>Precision reference pressure gauge<\/li>\n<li>Fine adjustment valve<\/li>\n<li>Separate pressure controller<\/li>\n<li>Electrical process calibrator<\/li>\n<li>Loop power supply<\/li>\n<li>Communication device<\/li>\n<\/ul>\n<p>The result is a compact automatic calibration platform that can be used both in a calibration laboratory and directly in the field.<\/p>\n<h2>Pressure Range from Vacuum to 500 psi<\/h2>\n<p>The ADT 761A-500 covers approximately:<\/p>\n<p><strong>-13 to 500 psig<\/strong><\/p>\n<p>corresponding to:<\/p>\n<p><strong>-0.9 to 35 bar(g)<\/strong><\/p>\n<p>The negative pressure capability allows the calibrator to generate vacuum relative to atmospheric pressure.<\/p>\n<p>Positive pneumatic pressure can be generated automatically up to 35 bar.<\/p>\n<p>This range makes the ADT 761A-500 particularly useful for common industrial pressure transmitters, pressure gauges, sensors and switches.<\/p>\n<h2>Gauge Pressure Measurement<\/h2>\n<p>The <strong>Additel ADT 761A-500<\/strong> supports gauge pressure measurement.<\/p>\n<p>Gauge pressure is referenced to the surrounding atmospheric pressure.<\/p>\n<p>The relationship can be expressed as:<\/p>\n<p><strong>p_gauge = p_absolute &#8211; p_atmosphere<\/strong><\/p>\n<p>Gauge pressure is widely used in industrial applications and is typical for:<\/p>\n<ul>\n<li>Pressure gauges<\/li>\n<li>Process pressure transmitters<\/li>\n<li>Pressure switches<\/li>\n<li>Pneumatic pressure sensors<\/li>\n<li>Industrial pressure transducers<\/li>\n<\/ul>\n<h2>Absolute Pressure Measurement<\/h2>\n<p>The ADT 761A-500 also supports:<\/p>\n<p><strong>Absolute Pressure<\/strong><\/p>\n<p>Absolute pressure is referenced to an ideal vacuum.<\/p>\n<p>The relationship between gauge and absolute pressure is approximately:<\/p>\n<p><strong>p_absolute = p_gauge + p_atmosphere<\/strong><\/p>\n<p>Because atmospheric pressure changes continuously, an accurate barometric reference is required when converting gauge pressure into absolute pressure.<\/p>\n<p>The ADT 761A-500 provides this reference internally.<\/p>\n<h2>Integrated Barometric Reference<\/h2>\n<p>A built-in barometer allows the <strong>Additel ADT 761A-500<\/strong> to support absolute pressure measurements without requiring a separate external barometer.<\/p>\n<p>Additel specifies a barometric accuracy contribution of:<\/p>\n<p><strong>55 Pa<\/strong><\/p>\n<p>When the calibrator is used in absolute pressure mode, this additional uncertainty contribution must be considered together with the accuracy specification of the selected gauge pressure module.<\/p>\n<p>This is particularly important when calculating a complete measurement uncertainty budget for an absolute pressure calibration.<\/p>\n<h2>Accuracy Down to 0.01 % FS<\/h2>\n<p>Depending on the selected pressure module, the <strong>Additel ADT 761A-500<\/strong> provides pressure accuracy of:<\/p>\n<p><strong>0.01 % FS<\/strong><\/p>\n<p>or:<\/p>\n<p><strong>0.02 % FS<\/strong><\/p>\n<p>FS refers to the span of the respective pressure module.<\/p>\n<p>Additel specifies this as a one-year accuracy including one-year stability.<\/p>\n<p>The specification is based on gauge pressure measurement. When measuring absolute pressure, the additional contribution from the integrated barometric reference must be included.<\/p>\n<h2>0.003 % FS Pressure Control Stability<\/h2>\n<p>The pressure control stability of the ADT 761A-500 is specified as:<\/p>\n<p><strong>0.003 % FS<\/strong><\/p>\n<p>This high control stability is particularly valuable for automatic calibration procedures.<\/p>\n<p>Once the required pressure setpoint has been approached, the controller maintains a stable reference pressure so that the indication or output signal of the device under test can be evaluated under controlled conditions.<\/p>\n<h2>Two Removable Internal Pressure Modules<\/h2>\n<p>The <strong>Additel ADT 761A-500<\/strong> can accommodate:<\/p>\n<p><strong>two removable internal pressure modules<\/strong><\/p>\n<p>This is an important advantage when the calibrator is used over a wide range of pressures.<\/p>\n<p>The high-range module covers pressures up to 500 psi \/ 35 bar, while a second internal pressure module can be selected for a lower pressure range.<\/p>\n<p>This allows the pressure measurement capability to be optimized for the actual device under test.<\/p>\n<h2>Why Two Pressure Ranges Matter<\/h2>\n<p>Pressure module accuracy is specified relative to the full span of the installed module.<\/p>\n<p>For this reason, using a 35 bar module to calibrate an instrument with a significantly smaller pressure range may not always provide the optimum absolute measurement performance.<\/p>\n<p>A second lower-range internal module can provide a better match to lower-pressure devices.<\/p>\n<p>For example, the same ADT 761A-500 can be configured to cover a high-pressure instrument and a significantly lower-range transmitter without relying exclusively on the 500 psi module.<\/p>\n<p>This modular concept makes the ADT761A particularly attractive for professional calibration laboratories.<\/p>\n<h2>Two External Pressure Modules<\/h2>\n<p>In addition to the two internal pressure module positions, the ADT761A platform provides connections for:<\/p>\n<p><strong>two external pressure modules<\/strong><\/p>\n<p>Compatible Additel intelligent digital pressure modules can therefore be connected to expand the measurement capabilities of the calibrator.<\/p>\n<p>External modules are particularly useful when additional pressure ranges or pressure types are required.<\/p>\n<p>They extend the measurement capability of the calibration system but do not increase the automatic pressure-generation range of the internal pneumatic pump.<\/p>\n<h2>Electrical Process Calibration<\/h2>\n<p>The <strong>Additel ADT 761A-500<\/strong> combines pressure calibration with integrated electrical process functions.<\/p>\n<p>This is especially useful for calibrating pressure transmitters.<\/p>\n<p>A typical industrial pressure transmitter converts pressure into an electrical:<\/p>\n<p><strong>4\u201320 mA<\/strong><\/p>\n<p>signal.<\/p>\n<p>The ADT 761A-500 can automatically generate the required reference pressure while simultaneously measuring the electrical output of the transmitter.<\/p>\n<p>This allows pressure and electrical measurements to be performed within one calibration workflow.<\/p>\n<h2>mA and Voltage Measurement<\/h2>\n<p>The electrical process section provides measurement of:<\/p>\n<ul>\n<li>Current<\/li>\n<li>Voltage<\/li>\n<\/ul>\n<p>These functions allow pressure transmitters and other process instruments with electrical outputs to be tested directly.<\/p>\n<p>This reduces the amount of additional equipment required for many field calibration applications.<\/p>\n<h2>mA Source and Simulation<\/h2>\n<p>The ADT761A platform can also source or simulate current.<\/p>\n<p>This expands the instrument beyond pressure generation and allows it to perform additional process calibration tasks.<\/p>\n<p>Combining pressure and electrical functionality in one instrument can simplify calibration setups and reduce the number of separate instruments required in the field.<\/p>\n<h2>24 V Loop Power<\/h2>\n<p>The <strong>Additel ADT 761A-500<\/strong> provides:<\/p>\n<p><strong>24 V loop power<\/strong><\/p>\n<p>for compatible process transmitters.<\/p>\n<p>This is particularly useful for two-wire 4\u201320 mA pressure transmitters.<\/p>\n<p>The calibrator can therefore provide the pressure stimulus, supply the transmitter and measure its electrical output within one integrated calibration setup.<\/p>\n<h2>Pressure Switch Testing<\/h2>\n<p>The ADT 761A-500 supports:<\/p>\n<p><strong>Pressure Switch Testing<\/strong><\/p>\n<p>The automatic pressure controller can increase and decrease the applied pressure while the instrument monitors the switching state.<\/p>\n<p>This allows important parameters to be determined, including:<\/p>\n<ul>\n<li>Switching pressure<\/li>\n<li>Reset pressure<\/li>\n<li>Pressure switch hysteresis<\/li>\n<\/ul>\n<p>Automatic pressure generation provides a convenient alternative to manually approaching the switching point with a hand pump.<\/p>\n<h2>HART Communication<\/h2>\n<p>The <strong>Additel ADT 761A-500<\/strong> supports:<\/p>\n<p><strong>HART communication<\/strong><\/p>\n<p>for compatible smart field devices.<\/p>\n<p>HART capability allows intelligent pressure transmitters to be incorporated into the calibration workflow.<\/p>\n<p>Depending on the connected device and application, HART communication can support functions such as:<\/p>\n<ul>\n<li>Device identification<\/li>\n<li>Reading digital process values<\/li>\n<li>Configuration<\/li>\n<li>Diagnostics<\/li>\n<li>Calibration support<\/li>\n<\/ul>\n<h2>PROFIBUS PA Communication<\/h2>\n<p>The ADT761A platform also supports:<\/p>\n<p><strong>PROFIBUS PA<\/strong><\/p>\n<p>communication.<\/p>\n<p>This provides additional flexibility for modern digital process instrumentation.<\/p>\n<p>Combined with automatic pressure generation and electrical measurement, the communication functions make the ADT 761A-500 a comprehensive process pressure calibration platform.<\/p>\n<h2>Automated Calibration Tasks<\/h2>\n<p>The <strong>Additel ADT 761A-500<\/strong> supports task documentation and automated calibration workflows.<\/p>\n<p>A predefined calibration sequence can include several increasing and decreasing pressure points.<\/p>\n<p>The instrument can automatically approach the required pressure setpoints and support the recording of the resulting measurement data.<\/p>\n<p>This is particularly useful for repetitive calibration procedures.<\/p>\n<h2>Integrated Data Logging<\/h2>\n<p>The ADT761A provides integrated:<\/p>\n<p><strong>Data Logging<\/strong><\/p>\n<p>Measurement values can be recorded directly with the calibrator.<\/p>\n<p>Typical applications include:<\/p>\n<ul>\n<li>Pressure stability tests<\/li>\n<li>Long-term measurements<\/li>\n<li>Calibration documentation<\/li>\n<li>Process monitoring<\/li>\n<li>Troubleshooting<\/li>\n<li>Instrument evaluation<\/li>\n<\/ul>\n<p>Integrated logging can reduce the need for separate data acquisition equipment in many applications.<\/p>\n<h2>Wi-Fi, Bluetooth, USB and Ethernet<\/h2>\n<p>The <strong>Additel ADT 761A-500<\/strong> provides modern communication interfaces including:<\/p>\n<ul>\n<li>Wi-Fi<\/li>\n<li>Bluetooth<\/li>\n<li>USB<\/li>\n<li>Ethernet<\/li>\n<\/ul>\n<p>These interfaces facilitate integration into digital calibration environments and communication with computers and compatible equipment.<\/p>\n<p>The combination of wired and wireless interfaces makes the ADT761A suitable for both laboratory and mobile field use.<\/p>\n<h2>Portable Automated Calibration<\/h2>\n<p>The ADT 761A-500 combines automatic pressure generation up to 35 bar with a portable design.<\/p>\n<p>This is particularly useful when the device under test cannot easily be removed from an industrial installation.<\/p>\n<p>Instead of transporting the instrument to a stationary pressure controller, the automatic calibration system can be taken to the measurement location.<\/p>\n<p>The rechargeable battery further supports mobile calibration applications.<\/p>\n<h2>Technical Highlights<\/h2>\n<p><strong>Model:<\/strong> Additel ADT 761A-500<\/p>\n<p><strong>Device type:<\/strong> Automatic Pneumatic Pressure Calibrator<\/p>\n<p><strong>Pressure range:<\/strong> -13 to 500 psig<\/p>\n<p><strong>Pressure range:<\/strong> Approx. -0.9 to 35 bar(g)<\/p>\n<p><strong>Maximum positive pressure:<\/strong> 500 psi \/ 35 bar<\/p>\n<p><strong>Pressure types:<\/strong> Gauge and Absolute<\/p>\n<p><strong>Barometric reference:<\/strong> Integrated<\/p>\n<p><strong>Pressure accuracy:<\/strong> 0.01 % FS or 0.02 % FS depending on module<\/p>\n<p><strong>Barometric accuracy contribution:<\/strong> 55 Pa<\/p>\n<p><strong>Pressure control stability:<\/strong> 0.003 % FS<\/p>\n<p><strong>Internal pressure modules:<\/strong> 2<\/p>\n<p><strong>Internal modules:<\/strong> Removable<\/p>\n<p><strong>External pressure modules:<\/strong> 2<\/p>\n<p><strong>Pressure generation:<\/strong> Integrated electric pump<\/p>\n<p><strong>Pressure control:<\/strong> Fully automatic<\/p>\n<p><strong>Electrical process functions:<\/strong> Yes<\/p>\n<p><strong>mA measurement:<\/strong> Yes<\/p>\n<p><strong>Voltage measurement:<\/strong> Yes<\/p>\n<p><strong>mA source\/simulation:<\/strong> Yes<\/p>\n<p><strong>24 V loop power:<\/strong> Yes<\/p>\n<p><strong>Pressure switch testing:<\/strong> Yes<\/p>\n<p><strong>HART communication:<\/strong> Yes<\/p>\n<p><strong>PROFIBUS PA communication:<\/strong> Yes<\/p>\n<p><strong>Task documentation:<\/strong> Yes<\/p>\n<p><strong>Data logging:<\/strong> Yes<\/p>\n<p><strong>Wi-Fi:<\/strong> Yes<\/p>\n<p><strong>Bluetooth:<\/strong> Yes<\/p>\n<p><strong>USB:<\/strong> Yes<\/p>\n<p><strong>Ethernet:<\/strong> Yes<\/p>\n<h2>Technical Data<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>Additel ADT 761A-500<\/th>\n<\/tr>\n<tr>\n<td>Device type<\/td>\n<td>Automatic Pneumatic Pressure Calibrator<\/td>\n<\/tr>\n<tr>\n<td>Pressure range<\/td>\n<td>-13 to 500 psig<\/td>\n<\/tr>\n<tr>\n<td>Pressure range<\/td>\n<td>Approx. -0.9 to 35 bar(g)<\/td>\n<\/tr>\n<tr>\n<td>Maximum positive pressure<\/td>\n<td>500 psi \/ 35 bar<\/td>\n<\/tr>\n<tr>\n<td>Pressure types<\/td>\n<td>Gauge \/ Absolute<\/td>\n<\/tr>\n<tr>\n<td>Barometric reference<\/td>\n<td>Integrated<\/td>\n<\/tr>\n<tr>\n<td>Accuracy<\/td>\n<td>0.01 % FS or 0.02 % FS<\/td>\n<\/tr>\n<tr>\n<td>Additional absolute-mode contribution<\/td>\n<td>55 Pa<\/td>\n<\/tr>\n<tr>\n<td>Control stability<\/td>\n<td>0.003 % FS<\/td>\n<\/tr>\n<tr>\n<td>Internal pressure modules<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>Internal modules removable<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>External pressure modules<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>Automatic pressure generation<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Integrated electric pump<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Electrical process calibration<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>mA \/ V measurement<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>mA source\/simulation<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>24 V loop power<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Pressure switch test<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>HART<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>PROFIBUS PA<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Task documentation<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Data logging<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Wi-Fi<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Bluetooth<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>USB<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Ethernet<\/td>\n<td>Yes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>ADT 761A-500 vs. ADT 761A-1K and ADT 761A-1.5K<\/h2>\n<p>The ADT761A series provides several configurations for medium and higher pneumatic pressures.<\/p>\n<table>\n<tbody>\n<tr>\n<th>Model<\/th>\n<th>Pressure Range<\/th>\n<th>Pressure Type<\/th>\n<th>Control Stability<\/th>\n<\/tr>\n<tr>\n<td><strong>ADT 761A-500<\/strong><\/td>\n<td><strong>-0.9 to 35 bar<\/strong><\/td>\n<td><strong>Gauge \/ Absolute<\/strong><\/td>\n<td><strong>0.003 % FS<\/strong><\/td>\n<\/tr>\n<tr>\n<td>ADT 761A-1K<\/td>\n<td>-0.9 to 70 bar<\/td>\n<td>Gauge \/ Absolute<\/td>\n<td>0.003 % FS<\/td>\n<\/tr>\n<tr>\n<td>ADT 761A-1.5K<\/td>\n<td>-0.9 to 100 bar<\/td>\n<td>Gauge \/ Absolute<\/td>\n<td>0.003 % FS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The <strong>ADT 761A-500<\/strong> is the 35 bar configuration and is therefore particularly suitable when the application does not require the extended 70 bar or 100 bar pressure capability of the larger models.<\/p>\n<p>Selecting a pressure range that is appropriately matched to the intended application can be advantageous from a metrological perspective.<\/p>\n<p>The ADT 761A-1K extends automatic pneumatic pressure generation to 70 bar.<\/p>\n<p>The ADT 761A-1.5K provides the highest pressure capability in this group at 100 bar.<\/p>\n<h2>ADT 761A-500 vs. ADT 760A-MA<\/h2>\n<p>The ADT 760A-MA and ADT 761A-500 both provide automatic gauge and absolute pressure calibration.<\/p>\n<p>The ADT 760A-MA covers pressures up to approximately:<\/p>\n<p><strong>25 bar<\/strong><\/p>\n<p>The ADT 761A-500 extends the automatic pneumatic pressure range to:<\/p>\n<p><strong>35 bar<\/strong><\/p>\n<p>The ADT761A platform also provides two removable internal pressure module positions, allowing the calibrator to combine its high-pressure capability with a lower-range internal module.<\/p>\n<p>This makes the ADT 761A-500 particularly attractive for professional users who require flexible multi-range automatic calibration.<\/p>\n<h2>Typical Calibration Applications<\/h2>\n<p>The <strong>Additel ADT 761A-500 Automatic Pressure Calibrator<\/strong> is particularly suitable for calibration and testing of:<\/p>\n<ul>\n<li>Digital pressure gauges<\/li>\n<li>Analog pressure gauges<\/li>\n<li>Gauge pressure transmitters<\/li>\n<li>Absolute pressure transmitters<\/li>\n<li>Pressure sensors<\/li>\n<li>Pressure transducers<\/li>\n<li>Pressure switches<\/li>\n<li>4\u201320 mA pressure transmitters<\/li>\n<li>HART pressure transmitters<\/li>\n<li>PROFIBUS PA process instruments<\/li>\n<li>Pneumatic process instrumentation<\/li>\n<li>Industrial pressure measuring equipment<\/li>\n<\/ul>\n<p>Typical users include:<\/p>\n<ul>\n<li>Professional calibration laboratories<\/li>\n<li>Industrial maintenance departments<\/li>\n<li>Process industry<\/li>\n<li>Chemical industry<\/li>\n<li>Pharmaceutical industry<\/li>\n<li>Energy and power generation<\/li>\n<li>Instrument manufacturers<\/li>\n<li>Quality assurance departments<\/li>\n<li>Mobile field service<\/li>\n<\/ul>\n<h2>Calibration and Service by europascal<\/h2>\n<p>Regular calibration of the ADT 761A-500 is important for maintaining reliable metrological performance.<\/p>\n<p>When two internal pressure modules are installed, both modules should be considered when defining the required calibration scope.<\/p>\n<p>For absolute pressure applications, the integrated barometric reference must also be taken into account.<\/p>\n<p>The <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal calibration service<\/a> provides professional calibration solutions for automatic pressure calibrators, pressure controllers, pressure modules, digital pressure gauges, pressure transmitters and pressure sensors.<\/p>\n<p>europascal can also support customers in selecting the appropriate ADT 761A configuration, internal pressure modules, external pressure modules and accessories.<\/p>\n<h2>Why Choose the Additel ADT 761A-500?<\/h2>\n<p>The <strong>Additel ADT 761A-500 Precise Automatic Pressure Calibrator<\/strong> combines fully automatic pneumatic pressure generation from vacuum up to <strong>500 psi \/ 35 bar<\/strong>, pressure accuracy down to <strong>0.01 % FS<\/strong> and excellent <strong>0.003 % FS pressure control stability<\/strong>.<\/p>\n<p>Its two removable internal pressure modules allow the system to be configured for both high and lower pressure ranges, helping to optimize measurement performance across different calibration applications.<\/p>\n<p>An integrated barometric reference enables both gauge and absolute pressure measurement, while two external pressure module connections provide additional flexibility.<\/p>\n<p>Integrated electrical process calibration, mA sourcing, 24 V loop power, pressure switch testing, HART and PROFIBUS PA communication, task documentation and data logging make the ADT 761A-500 a comprehensive solution for professional automated pressure calibration.<\/p>\n<p><strong>Looking for the Additel ADT 761A-500 for automatic pneumatic pressure calibration up to 35 bar? Contact europascal for expert advice, suitable pressure module configurations, accessories and professional calibration services.<\/strong><\/p>\n<p><a href=\"https:\/\/europascal.de\/en\/product\/additel-adt-761a\/\">Further information about the Additel ADT 761A series from europascal can be found here.<\/a><\/p>\n<p><a href=\"https:\/\/europascal.de\/en\/product-category\/pressure\/pressure-controller-calibrator-indicator\/\">Further pressure calibration products from europascal can be found here.<\/a><\/p>\n<p><a href=\"https:\/\/www.additel.com\/products\/Pressure-Calibrators\/\" target=\"_blank\" rel=\"noopener\">Manufacturer information about the Additel ADT 761A-500 can be found on the official Additel website.<\/a><\/p>\n<p><a class=\"download-datasheet\" href=\"#\" data-pdf=\"https:\/\/europascal.de\/wp-content\/uploads\/2026\/07\/Additel-ADT-761A-Automated-Pressure-Calibrators-20260326.pdf\"> <span style=\"color: #0000ff;\"><strong><em>Download Datasheet<\/em><\/strong><\/span> <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The <strong>Additel ADT 761A-500 Automatic Pressure Calibrator<\/strong> is a portable, fully automated pneumatic calibration system for pressure generation from vacuum up to <strong>500 psi \/ 35 bar<\/strong>. With accuracy down to <strong>0.01 % FS<\/strong>, excellent <strong>0.003 % FS control stability<\/strong>, two removable internal pressure modules and an integrated barometric reference for gauge and absolute pressure, the ADT 761A-500 provides a flexible solution for professional laboratory and field calibration. Integrated electrical process functions, HART and PROFIBUS PA communication, task documentation and data logging support complete automated calibration 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