{"id":7286,"date":"2026-07-17T15:51:01","date_gmt":"2026-07-17T15:51:01","guid":{"rendered":"https:\/\/europascal.de\/product\/additel-adt-761a-1k\/"},"modified":"2026-10-22T08:51:39","modified_gmt":"2026-10-22T08:51:39","slug":"additel-adt-761a-1k","status":"publish","type":"product","link":"https:\/\/europascal.de\/en\/product\/additel-adt-761a-1k\/","title":{"rendered":"Additel ADT 761A-1K Precise Automatic Pressure Calibrator"},"content":{"rendered":"<p>The <strong>Additel ADT 761A-1K Automatic Pressure Calibrator<\/strong> is a powerful portable calibration system for fully automatic pneumatic pressure generation, control and measurement from vacuum up to <strong>1,000 psi \/ 70 bar<\/strong>. Combining an integrated electric pump, precision pressure control, interchangeable internal pressure modules, electrical process calibration and advanced communication functions, the ADT 761A-1K is designed for demanding laboratory and field calibration applications.<\/p>\n<p>The pressure range extends from:<\/p>\n<p><strong>-13 to 1,000 psig<\/strong><\/p>\n<p>or approximately:<\/p>\n<p><strong>-0.9 to 70 bar(g)<\/strong><\/p>\n<p>The ADT 761A-1K supports both:<\/p>\n<p><strong>Gauge Pressure<\/strong><\/p>\n<p>and:<\/p>\n<p><strong>Absolute Pressure<\/strong><\/p>\n<p>An integrated barometric reference allows the instrument to convert gauge pressure measurements into absolute pressure values without requiring a separate external barometer.<\/p>\n<p>Depending on the selected internal pressure module, pressure accuracy is available as:<\/p>\n<p><strong>0.01 % FS or 0.02 % FS<\/strong><\/p>\n<p>with an excellent pressure control stability of:<\/p>\n<p><strong>0.003 % FS<\/strong><\/p>\n<p>The ADT 761A-1K accommodates <strong>two removable internal pressure modules<\/strong>, allowing a high-pressure range to be combined with a lower pressure range for improved measurement performance.<\/p>\n<p>In addition to pressure generation and measurement, the ADT761A platform provides electrical process calibration, HART and PROFIBUS communication, pressure switch testing, task documentation and 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-1K 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 70 bar<\/li>\n<li>Maximum pressure of 1,000 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>High-range CP1K pressure module<\/li>\n<li>Configurable second internal pressure module<\/li>\n<li>Two external pressure module connections<\/li>\n<li>Electrical process 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 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>Touchscreen operation<\/li>\n<li>Rechargeable battery<\/li>\n<li>Suitable for laboratory and mobile field calibration<\/li>\n<\/ul>\n<h2>Automatic Pressure Generation up to 70 bar<\/h2>\n<p>The <strong>Additel ADT 761A-1K<\/strong> automatically generates pneumatic pressure from vacuum up to:<\/p>\n<p><strong>70 bar(g)<\/strong><\/p>\n<p>or:<\/p>\n<p><strong>1,000 psig<\/strong><\/p>\n<p>The integrated electric pump eliminates the need for an external hand pump in many calibration applications.<\/p>\n<p>The operator enters the required pressure setpoint and the ADT 761A-1K automatically generates, adjusts and stabilizes the pressure.<\/p>\n<p>This provides a significant advantage over conventional calibration arrangements requiring separate components 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>Electrical process calibrator<\/li>\n<li>Loop power supply<\/li>\n<li>Communication device<\/li>\n<\/ul>\n<p>The ADT 761A-1K combines these functions in one portable automated calibration platform.<\/p>\n<h2>Pressure Range from Vacuum to 1,000 psi<\/h2>\n<p>The operating range of the ADT 761A-1K extends from approximately:<\/p>\n<p><strong>-13 to 1,000 psig<\/strong><\/p>\n<p>or:<\/p>\n<p><strong>-0.9 to 70 bar(g)<\/strong><\/p>\n<p>This wide pneumatic pressure range makes the instrument suitable for many industrial pressure calibration applications.<\/p>\n<p>The vacuum capability also allows instruments with negative gauge pressure ranges to be tested.<\/p>\n<h2>Gauge and Absolute Pressure<\/h2>\n<p>The <strong>Additel ADT 761A-1K<\/strong> supports both gauge and absolute pressure applications.<\/p>\n<p>Gauge pressure is measured relative to atmospheric pressure:<\/p>\n<p><strong>p_gauge = p_absolute &#8211; p_atmosphere<\/strong><\/p>\n<p>Absolute pressure is referenced to an ideal vacuum:<\/p>\n<p><strong>p_absolute = p_gauge + p_atmosphere<\/strong><\/p>\n<p>The integrated barometric reference measures atmospheric pressure and enables the calibrator to determine absolute pressure from the internal gauge pressure measurement.<\/p>\n<h2>Integrated Barometric Reference<\/h2>\n<p>The integrated barometric reference is an important feature of the ADT 761A-1K.<\/p>\n<p>It allows the same instrument to be used for:<\/p>\n<ul>\n<li>Gauge pressure instruments<\/li>\n<li>Absolute pressure instruments<\/li>\n<li>Atmospheric pressure measurement<\/li>\n<\/ul>\n<p>Additel specifies a barometric accuracy contribution of:<\/p>\n<p><strong>55 Pa<\/strong><\/p>\n<p>For absolute pressure measurements, this additional <strong>55 Pa uncertainty<\/strong> must be included together with the specification of the selected gauge pressure module.<\/p>\n<p>This distinction is important when calculating the measurement uncertainty of 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-1K<\/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>The specification is based on gauge pressure measurement.<\/p>\n<p>FS refers to the span of the installed pressure module.<\/p>\n<p>The specified accuracy includes one-year stability, making the module specification particularly relevant when evaluating the calibration interval and required measurement uncertainty.<\/p>\n<h2>Excellent 0.003 % FS Control Stability<\/h2>\n<p>The pressure control stability of the ADT 761A-1K is specified as:<\/p>\n<p><strong>0.003 % FS<\/strong><\/p>\n<p>This high level of control stability is particularly valuable for automated calibration.<\/p>\n<p>After the instrument approaches a selected pressure setpoint, the integrated control system maintains a stable reference pressure so that 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-1K<\/strong> can accommodate:<\/p>\n<p><strong>two removable internal pressure modules<\/strong><\/p>\n<p>The high-pressure range is covered by the appropriate high-range module, while a second internal module can be selected for a lower pressure range.<\/p>\n<p>This multi-range concept is important because pressure module accuracy is specified relative to full scale.<\/p>\n<p>Using a lower-range module for low-pressure measurements can therefore provide significantly better absolute measurement performance than using only the 70 bar module across the entire range.<\/p>\n<h2>Flexible Multi-Range Calibration<\/h2>\n<p>Consider a calibration laboratory that needs to calibrate both:<\/p>\n<ul>\n<li>5 bar pressure transmitters<\/li>\n<li>60 bar pressure gauges<\/li>\n<\/ul>\n<p>Using only a 70 bar reference sensor for both applications may not provide the optimum uncertainty at 5 bar.<\/p>\n<p>With the dual internal module concept, a lower-range module can be installed alongside the high-pressure module.<\/p>\n<p>The ADT 761A-1K can therefore cover a broad pressure range while maintaining appropriate metrological performance for lower-range devices.<\/p>\n<h2>Two External Pressure Modules<\/h2>\n<p>The ADT761A platform also supports:<\/p>\n<p><strong>two external pressure modules<\/strong><\/p>\n<p>Compatible Additel intelligent digital pressure modules can be connected to extend the pressure measurement capability of the system.<\/p>\n<p>This provides additional flexibility for calibration laboratories handling many different pressure ranges.<\/p>\n<p>The external modules expand measurement capability but do not increase the automatic pressure-generation limit of the internal pneumatic system.<\/p>\n<h2>Electrical Process Calibration<\/h2>\n<p>The <strong>Additel ADT 761A-1K<\/strong> combines pressure calibration with electrical process measurement and source functions.<\/p>\n<p>This is particularly useful for pressure transmitters.<\/p>\n<p>A typical industrial transmitter converts pressure into a:<\/p>\n<p><strong>4\u201320 mA<\/strong><\/p>\n<p>output signal.<\/p>\n<p>The ADT 761A-1K can automatically generate the required reference pressure while simultaneously measuring the electrical transmitter output.<\/p>\n<p>This enables pressure and electrical measurements to be combined within a single calibration workflow.<\/p>\n<h2>mA and Voltage Measurement<\/h2>\n<p>The electrical process functions include measurement of:<\/p>\n<ul>\n<li>Current<\/li>\n<li>Voltage<\/li>\n<\/ul>\n<p>These capabilities make the instrument suitable for calibration of pressure transmitters and other process instrumentation with electrical outputs.<\/p>\n<p>Instead of requiring a separate digital multimeter, pressure source and reference pressure instrument, many calibration tasks can be performed using the ADT 761A-1K.<\/p>\n<h2>mA Source and 24 V Loop Power<\/h2>\n<p>The ADT761A platform also provides:<\/p>\n<ul>\n<li>mA source\/simulation<\/li>\n<li>24 V loop power<\/li>\n<\/ul>\n<p>The integrated loop power function is particularly useful for two-wire pressure transmitters.<\/p>\n<p>The calibrator can provide transmitter power while simultaneously generating the pressure and measuring the resulting electrical signal.<\/p>\n<h2>Pressure Switch Testing<\/h2>\n<p>The <strong>Additel ADT 761A-1K<\/strong> supports pressure switch testing.<\/p>\n<p>The automatic pressure generation system can approach the switching point in a controlled manner.<\/p>\n<p>This allows parameters such as:<\/p>\n<ul>\n<li>Switching pressure<\/li>\n<li>Reset pressure<\/li>\n<li>Switch hysteresis<\/li>\n<\/ul>\n<p>to be evaluated efficiently.<\/p>\n<p>Automatic pressure control reduces the manual adjustment normally required when testing pressure switches with a hand pump.<\/p>\n<h2>HART Communication<\/h2>\n<p>The ADT761A platform supports:<\/p>\n<p><strong>HART communication<\/strong><\/p>\n<p>This allows compatible intelligent pressure transmitters to be integrated into the calibration workflow.<\/p>\n<p>HART functionality can be used for device communication, configuration and diagnostic tasks.<\/p>\n<p>Combined with automatic pressure generation and electrical measurement, this makes the ADT 761A-1K particularly suitable for modern smart pressure transmitters.<\/p>\n<h2>PROFIBUS Communication<\/h2>\n<p>The ADT761A also supports:<\/p>\n<p><strong>PROFIBUS communication<\/strong><\/p>\n<p>This extends its capabilities beyond conventional analog 4\u201320 mA pressure transmitters.<\/p>\n<p>Compatible digital process instruments can therefore be incorporated into calibration and maintenance workflows.<\/p>\n<h2>Automated Calibration Tasks<\/h2>\n<p>The <strong>Additel ADT 761A-1K<\/strong> supports task documentation and automated calibration procedures.<\/p>\n<p>A predefined sequence can contain several pressure points.<\/p>\n<p>The instrument can automatically generate the individual setpoints, stabilize the pressure and support the documentation of the resulting measurement data.<\/p>\n<p>This is especially 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 by the calibrator.<\/p>\n<p>Data logging can be useful for:<\/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>Together with task management, data logging helps reduce manual documentation work.<\/p>\n<h2>Modern Communication Interfaces<\/h2>\n<p>The <strong>Additel ADT 761A-1K<\/strong> provides several modern communication interfaces:<\/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 support integration into digital calibration environments and simplify communication with computers and compatible peripheral equipment.<\/p>\n<h2>Portable Calibration Platform<\/h2>\n<p>Despite its automatic pressure generation capability up to 70 bar, the ADT 761A-1K is designed for portable use.<\/p>\n<p>This is especially advantageous when the device under test cannot easily be removed from an industrial installation.<\/p>\n<p>Instead of bringing the pressure instrument to a stationary laboratory pressure controller, the automatic calibration system can be taken into the field.<\/p>\n<h2>Typical Calibration Applications<\/h2>\n<p>The <strong>Additel ADT 761A-1K 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 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>Technical Highlights<\/h2>\n<p><strong>Model:<\/strong> Additel ADT 761A-1K<\/p>\n<p><strong>Device type:<\/strong> Automatic Pneumatic Pressure Calibrator<\/p>\n<p><strong>Pressure range:<\/strong> -13 to 1,000 psig<\/p>\n<p><strong>Pressure range:<\/strong> Approx. -0.9 to 70 bar(g)<\/p>\n<p><strong>Maximum pressure:<\/strong> 1,000 psig \/ 70 bar(g)<\/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 module channels:<\/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 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 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-1K<\/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 1,000 psig<\/td>\n<\/tr>\n<tr>\n<td>Pressure range<\/td>\n<td>Approx. -0.9 to 70 bar(g)<\/td>\n<\/tr>\n<tr>\n<td>Maximum positive pressure<\/td>\n<td>1,000 psi \/ 70 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>Pressure 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 functions<\/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<\/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<\/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-1K vs. ADT 761A-500 and ADT 761A-1.5K<\/h2>\n<p>The ADT761A family provides several configurations for automatic pneumatic pressure calibration.<\/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>ADT 761A-500<\/td>\n<td>-0.9 to 35 bar<\/td>\n<td>Gauge \/ Absolute<\/td>\n<td>0.003 % FS<\/td>\n<\/tr>\n<tr>\n<td><strong>ADT 761A-1K<\/strong><\/td>\n<td><strong>-0.9 to 70 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-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-1K<\/strong> occupies the middle range between the 35 bar ADT 761A-500 and the 100 bar ADT 761A-1.5K.<\/p>\n<p>For applications requiring pressures up to approximately 35 bar, the ADT 761A-500 may provide the more appropriate range.<\/p>\n<p>For applications extending to 70 bar, the ADT 761A-1K provides a powerful portable solution.<\/p>\n<p>Where pneumatic pressure generation up to 100 bar is required, the ADT 761A-1.5K extends the range further.<\/p>\n<h2>ADT 761A-1K vs. ADT 760A-MA<\/h2>\n<p>The ADT 760A-MA and ADT 761A-1K both provide automatic gauge and absolute pressure calibration, but they target different pressure requirements.<\/p>\n<p>The ADT 760A-MA covers pressures up to approximately:<\/p>\n<p><strong>25 bar<\/strong><\/p>\n<p>while the ADT 761A-1K extends automatic pneumatic pressure generation to:<\/p>\n<p><strong>70 bar<\/strong><\/p>\n<p>The ADT 761A-1K also provides a dual internal pressure module architecture and extensive process calibration, communication, task and logging functions.<\/p>\n<p>It is therefore particularly suitable for professional users requiring a wider automatic pneumatic pressure range and flexible multi-range calibration.<\/p>\n<h2>Calibration and Service by europascal<\/h2>\n<p>Regular calibration is important for maintaining the metrological performance of an automatic pressure calibrator.<\/p>\n<p>For an ADT 761A-1K equipped with two internal pressure modules, both installed pressure modules should be considered when defining the required calibration scope.<\/p>\n<p>For absolute pressure applications, the integrated barometric reference must also be considered.<\/p>\n<p>The <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal calibration service<\/a> provides professional calibration solutions for 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 and suitable internal or external pressure modules.<\/p>\n<h2>Why Choose the Additel ADT 761A-1K?<\/h2>\n<p>The <strong>Additel ADT 761A-1K Precise Automatic Pressure Calibrator<\/strong> combines fully automatic pneumatic pressure generation from vacuum up to <strong>1,000 psi \/ 70 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 provide flexibility when calibrating instruments with different measuring ranges.<\/p>\n<p>An integrated barometric reference enables both gauge and absolute pressure calibration, while two external pressure module connections further expand the measurement capability.<\/p>\n<p>Integrated electrical process calibration, mA sourcing, 24 V loop power, pressure switch testing, HART and PROFIBUS communication, task documentation and data logging make the ADT 761A-1K a comprehensive solution for professional pressure calibration.<\/p>\n<p><strong>Looking for the Additel ADT 761A-1K for automatic pneumatic pressure calibration up to 70 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-1K can be found in the official Additel ADT 761A product information.<\/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-1K Automatic Pressure Calibrator<\/strong> is a portable, fully automated pneumatic calibration system for pressure generation from vacuum up to <strong>1,000 psi \/ 70 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-1K provides a powerful solution for professional laboratory and field calibration. Integrated electrical process functions, HART and PROFIBUS communication, task documentation and data logging further support complete automated calibration 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