{"id":7279,"date":"2026-07-17T15:50:48","date_gmt":"2026-07-17T15:50:48","guid":{"rendered":"https:\/\/europascal.de\/product\/additel-adt-760s-llp-druckkalibrator\/"},"modified":"2026-10-22T08:36:35","modified_gmt":"2026-10-22T08:36:35","slug":"additel-adt-760s-llp","status":"publish","type":"product","link":"https:\/\/europascal.de\/en\/product\/additel-adt-760s-llp\/","title":{"rendered":"Additel ADT 760S-LLP Precise Low Pressure Calibrator"},"content":{"rendered":"<p>The <strong>Additel ADT 760S-LLP Low Pressure Calibrator<\/strong> is a compact, fully automatic handheld pressure calibrator designed specifically for precise low gauge and differential pressure applications. It combines automatic pressure generation, closed-loop pressure control and interchangeable precision pressure modules in a portable instrument weighing less than approximately 1.8 kg.<\/p>\n<p>The LLP version is optimized for particularly small pneumatic pressures. Its maximum compatible internal pressure module provides a range of:<\/p>\n<p><strong>\u00b130 inH\u2082O<\/strong><\/p>\n<p>or:<\/p>\n<p><strong>\u00b175 mbar<\/strong><\/p>\n<p>corresponding to approximately:<\/p>\n<p><strong>\u00b17.5 kPa<\/strong><\/p>\n<p>For applications requiring even lower pressure ranges, interchangeable internal <strong>Additel ADT155 pressure modules<\/strong> are available with ranges down to:<\/p>\n<p><strong>\u00b10.25 inH\u2082O<\/strong><\/p>\n<p>or approximately:<\/p>\n<p><strong>\u00b10.62 mbar<\/strong><\/p>\n<p>The pressure accuracy of the ADT 760S-LLP is:<\/p>\n<p><strong>0.05 % FS<\/strong><\/p>\n<p>with pressure control stability of:<\/p>\n<p><strong>0.005 % FS or 0.05 Pa, whichever is greater<\/strong><\/p>\n<p>The instrument supports both <strong>gauge pressure and differential pressure<\/strong>.<\/p>\n<p>The Additel ADT 760S-LLP is therefore particularly suitable for calibration of differential pressure transmitters, low-pressure sensors, HVAC instrumentation, cleanroom pressure transmitters, filter monitoring systems and other sensitive pneumatic measuring equipment.<\/p>\n<p>Unlike the ADT 760A, the ADT 760S is designed as a streamlined pressure-focused platform. It provides the same pressure ranges and pressure accuracy as the corresponding ADT 760A configurations but does not include the electrical ports and device communication functions of the ADT 760A.<\/p>\n<p>The <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal calibration service<\/a> provides professional calibration solutions for low-pressure calibrators, differential pressure instruments, pressure modules, pressure sensors and pressure transmitters.<\/p>\n<h2>Your Benefits at a Glance<\/h2>\n<p>The <strong>Additel ADT 760S-LLP Low Pressure Calibrator<\/strong> provides:<\/p>\n<ul>\n<li>Fully automatic low-pressure calibration<\/li>\n<li>Integrated electric pressure generation<\/li>\n<li>Automatic closed-loop pressure control<\/li>\n<li>Maximum internal pressure range of \u00b175 mbar<\/li>\n<li>Maximum internal pressure range of \u00b130 inH\u2082O<\/li>\n<li>Pressure module ranges down to \u00b10.62 mbar<\/li>\n<li>Gauge pressure measurement<\/li>\n<li>Differential pressure measurement<\/li>\n<li>Pressure accuracy of 0.05 % FS<\/li>\n<li>Control stability of 0.005 % FS or 0.05 Pa, whichever is greater<\/li>\n<li>Interchangeable internal ADT155 pressure modules<\/li>\n<li>Six-digit pressure resolution<\/li>\n<li>Two external pressure measurement channels<\/li>\n<li>Large capacitive touchscreen<\/li>\n<li>Bluetooth communication<\/li>\n<li>Wi-Fi communication<\/li>\n<li>USB communication<\/li>\n<li>Compact design weighing less than 1.8 kg<\/li>\n<li>Optional Contamination Prevention System<\/li>\n<li>Pressure-focused alternative to the ADT 760A-LLP<\/li>\n<li>No integrated electrical measurement ports<\/li>\n<li>No HART functionality<\/li>\n<li>No data logging<\/li>\n<li>No DL model version<\/li>\n<\/ul>\n<h2>Precise Low Pressure Calibration up to \u00b175 mbar<\/h2>\n<p>The <strong>Additel ADT 760S-LLP<\/strong> is specifically designed for low-pressure applications.<\/p>\n<p>The maximum compatible internal pressure module covers:<\/p>\n<p><strong>\u00b175 mbar<\/strong><\/p>\n<p>or:<\/p>\n<p><strong>\u00b130 inH\u2082O<\/strong><\/p>\n<p>which corresponds to approximately:<\/p>\n<p><strong>\u00b17.5 kPa<\/strong><\/p>\n<p>This range is significantly lower than that of conventional pneumatic pressure calibrators and makes the LLP version particularly suitable for sensitive differential pressure applications.<\/p>\n<p>The instrument can automatically generate both positive and negative differential or gauge pressures around zero.<\/p>\n<h2>Pressure Ranges Down to \u00b10.62 mbar<\/h2>\n<p>The maximum \u00b175 mbar range is not the only available measuring range.<\/p>\n<p>The ADT 760S-LLP uses interchangeable internal:<\/p>\n<p><strong>ADT155 pressure modules<\/strong><\/p>\n<p>Additel provides module ranges extending down to:<\/p>\n<p><strong>\u00b10.25 inH\u2082O<\/strong><\/p>\n<p>or approximately:<\/p>\n<p><strong>\u00b10.62 mbar<\/strong><\/p>\n<p>Selecting an internal module that closely matches the actual calibration range is particularly important for low-pressure measurements.<\/p>\n<p>Because the accuracy specification is based on the span of the installed pressure module, an appropriately selected low-range module can provide much better absolute measurement performance than using the maximum \u00b175 mbar module for every application.<\/p>\n<h2>Accuracy of 0.05 % FS<\/h2>\n<p>The pressure accuracy specified for the <strong>Additel ADT 760S-LLP<\/strong> is:<\/p>\n<p><strong>0.05 % FS<\/strong><\/p>\n<p>FS means Full Scale and refers to the span of the installed internal pressure module.<\/p>\n<p>This distinction is important when evaluating the absolute uncertainty contribution of the calibrator.<\/p>\n<p>For example, an application involving only very small differential pressures should ideally use an appropriately low-range ADT155 module rather than the maximum \u00b175 mbar module.<\/p>\n<h2>Pressure Control Stability<\/h2>\n<p>Additel specifies pressure control stability as:<\/p>\n<p><strong>0.005 % FS or 0.05 Pa, whichever is greater<\/strong><\/p>\n<p>The stability specification is based on the full-scale span of the internal pressure module.<\/p>\n<p>The additional 0.05 Pa minimum criterion becomes particularly relevant for the smallest LLP pressure ranges.<\/p>\n<p>Stable pressure control is especially important at very low pressures because even pressure variations of only a few pascals can represent a significant proportion of the applied test pressure.<\/p>\n<h2>Fully Automatic Pressure Generation<\/h2>\n<p>The <strong>Additel ADT 760S-LLP<\/strong> eliminates the need for manual pressure generation in many low-pressure calibration applications.<\/p>\n<p>The required pressure setpoint is entered directly into the instrument.<\/p>\n<p>The integrated pressure generation and control system then automatically approaches and stabilizes the requested pressure.<\/p>\n<p>This replaces many conventional calibration arrangements involving:<\/p>\n<ul>\n<li>Manual low-pressure pump<\/li>\n<li>Reference pressure instrument<\/li>\n<li>Fine pressure adjustment valve<\/li>\n<li>Pressure tubing<\/li>\n<li>Separate pressure control components<\/li>\n<\/ul>\n<p>The result is a compact automatic low-pressure calibration system suitable for both laboratory and mobile applications.<\/p>\n<h2>Gauge Pressure Measurement<\/h2>\n<p>The ADT 760S-LLP supports:<\/p>\n<p><strong>Gauge Pressure<\/strong><\/p>\n<p>Gauge pressure is measured relative to atmospheric pressure.<\/p>\n<p>This mode is commonly used for low-pressure sensors, pneumatic instruments and pressure transmitters where the surrounding atmospheric pressure is used as the reference.<\/p>\n<h2>Differential Pressure Measurement<\/h2>\n<p>The ADT 760S-LLP also supports:<\/p>\n<p><strong>Differential Pressure<\/strong><\/p>\n<p>Differential pressure represents the pressure difference between two pressure ports:<\/p>\n<p><strong>\u0394p = p\u2081 \u2212 p\u2082<\/strong><\/p>\n<p>This measurement principle is widely used in applications where very small pressure differences must be determined accurately.<\/p>\n<p>Typical examples include:<\/p>\n<ul>\n<li>Filter monitoring<\/li>\n<li>HVAC systems<\/li>\n<li>Cleanrooms<\/li>\n<li>Ventilation systems<\/li>\n<li>Airflow measurement<\/li>\n<li>Differential pressure transmitters<\/li>\n<li>Low-pressure process instrumentation<\/li>\n<\/ul>\n<h2>Ideal for Cleanroom Pressure Calibration<\/h2>\n<p>Cleanrooms frequently operate with controlled pressure differences between adjacent rooms.<\/p>\n<p>These pressure differences can be only a few pascals.<\/p>\n<p>Maintaining a defined pressure cascade helps control the direction of airflow between different areas.<\/p>\n<p>The availability of very low-range ADT155 modules makes the <strong>Additel ADT 760S-LLP<\/strong> particularly interesting for calibration of pressure instruments used in cleanroom monitoring.<\/p>\n<h2>Filter Monitoring Applications<\/h2>\n<p>Differential pressure is commonly used to determine the condition of air and process filters.<\/p>\n<p>As a filter becomes contaminated, its flow resistance increases.<\/p>\n<p>This causes the differential pressure across the filter to rise.<\/p>\n<p>The ADT 760S-LLP can be used as a controlled reference pressure source for testing and calibrating differential pressure instruments used in these applications.<\/p>\n<h2>HVAC Applications<\/h2>\n<p>Heating, ventilation and air-conditioning systems frequently use low differential pressures for monitoring:<\/p>\n<ul>\n<li>Air ducts<\/li>\n<li>Filters<\/li>\n<li>Fans<\/li>\n<li>Room pressure<\/li>\n<li>Airflow<\/li>\n<li>Ventilation systems<\/li>\n<\/ul>\n<p>The combination of automatic pressure generation and low-pressure measurement makes the ADT 760S-LLP well suited to HVAC calibration work.<\/p>\n<h2>Flow Measurement Applications<\/h2>\n<p>Differential pressure can also be used to determine flow.<\/p>\n<p>Typical primary elements include:<\/p>\n<ul>\n<li>Orifice plates<\/li>\n<li>Venturi tubes<\/li>\n<li>Flow nozzles<\/li>\n<li>Pitot tubes<\/li>\n<\/ul>\n<p>The relationship between differential pressure and flow depends on the particular measuring system.<\/p>\n<p>The ADT 760S-LLP can provide defined differential pressures for testing the associated transmitters and measuring instruments.<\/p>\n<h2>Interchangeable ADT155 Pressure Modules<\/h2>\n<p>The interchangeable internal <strong>ADT155 pressure module<\/strong> is an important feature of the ADT 760S-LLP.<\/p>\n<p>Instead of permanently limiting the calibrator to one pressure range, different compatible modules can be selected according to the required application.<\/p>\n<p>The maximum LLP module provides:<\/p>\n<p><strong>\u00b175 mbar \/ \u00b130 inH\u2082O<\/strong><\/p>\n<p>while lower ranges are available down to:<\/p>\n<p><strong>\u00b10.62 mbar \/ \u00b10.25 inH\u2082O<\/strong><\/p>\n<p>This modular design allows the calibration system to be optimized for different low-pressure ranges.<\/p>\n<h2>Six-Digit Pressure Resolution<\/h2>\n<p>The ADT 760S-LLP provides:<\/p>\n<p><strong>6-digit pressure resolution<\/strong><\/p>\n<p>A wide range of engineering units is available, including:<\/p>\n<ul>\n<li>Pa<\/li>\n<li>hPa<\/li>\n<li>kPa<\/li>\n<li>MPa<\/li>\n<li>bar<\/li>\n<li>mbar<\/li>\n<li>psi<\/li>\n<li>mmHg<\/li>\n<li>torr<\/li>\n<li>inH\u2082O<\/li>\n<li>mmH\u2082O<\/li>\n<li>cmH\u2082O<\/li>\n<li>mH\u2082O<\/li>\n<li>kgf\/cm\u00b2<\/li>\n<li>Custom units<\/li>\n<\/ul>\n<p>For very low-pressure applications, units such as Pa, mbar and inH\u2082O are particularly useful.<\/p>\n<h2>Pressure Connection<\/h2>\n<p>The LLP configuration uses:<\/p>\n<p><strong>barb fittings<\/strong><\/p>\n<p>for its pressure connections.<\/p>\n<p>These are well suited to the flexible pneumatic tubing commonly used for low and differential pressure applications.<\/p>\n<p>Correct tubing installation is especially important at very low pressures.<\/p>\n<p>Leaks, kinked tubing or changing tube volumes can influence settling behavior and measurement stability.<\/p>\n<h2>Pressure Output Rate<\/h2>\n<p>For the maximum LLP range, Additel specifies a pressure output time of:<\/p>\n<p><strong>less than 30 seconds<\/strong><\/p>\n<p>for:<\/p>\n<p><strong>30 inH\u2082O with a 100 ml test volume<\/strong><\/p>\n<p>The actual response time in a calibration setup depends on factors such as:<\/p>\n<ul>\n<li>Selected pressure range<\/li>\n<li>Connected volume<\/li>\n<li>Tubing volume<\/li>\n<li>Leakage<\/li>\n<li>Device under test<\/li>\n<li>Pressure setpoint<\/li>\n<\/ul>\n<p>Minimizing unnecessary test volume can therefore improve pressure response.<\/p>\n<h2>External Pressure Module Support<\/h2>\n<p>In addition to the interchangeable internal pressure module, the ADT760S platform supports:<\/p>\n<p><strong>two external pressure module channels<\/strong><\/p>\n<p>Compatible external Additel pressure modules can therefore be used for additional pressure measurement applications.<\/p>\n<p>These external channels expand the measurement flexibility of the instrument.<\/p>\n<p>The pressure generation capability itself remains determined by the internal pneumatic system and the selected ADT 760S configuration.<\/p>\n<h2>ADT 760S \u2013 Streamlined Pressure-Focused Platform<\/h2>\n<p>The <strong>ADT 760S<\/strong> was developed for applications where automatic pressure generation is the primary requirement.<\/p>\n<p>Additel describes the 760S as the streamlined version of the ADT760A platform.<\/p>\n<p>It provides the same pressure ranges and pressure accuracy as the corresponding ADT760A models but does not include:<\/p>\n<ul>\n<li>Electrical measurement ports<\/li>\n<li>Electrical source functions<\/li>\n<li>Integrated device communication functions<\/li>\n<\/ul>\n<p>This makes the <strong>ADT 760S-LLP<\/strong> particularly suitable when a precise automatic low-pressure source is required without the additional process-calibrator functionality of the ADT 760A.<\/p>\n<h2>No Integrated Electrical Measurement<\/h2>\n<p>The <strong>Additel ADT 760S-LLP<\/strong> should not be confused with the ADT 760A-LLP.<\/p>\n<p>The 760S does not provide the integrated electrical measurement ports of the 760A.<\/p>\n<p>For example, when calibrating a 4\u201320 mA differential pressure transmitter, the ADT 760S-LLP can generate and measure the pressure while a separate instrument can measure the electrical transmitter output.<\/p>\n<p>Suitable external instruments may include:<\/p>\n<ul>\n<li>Digital multimeter<\/li>\n<li>Process calibrator<\/li>\n<li>Electrical reference instrument<\/li>\n<li>Data acquisition system<\/li>\n<\/ul>\n<p>This approach is particularly practical for calibration laboratories that already use dedicated electrical reference equipment.<\/p>\n<h2>No HART Functionality<\/h2>\n<p>The ADT 760S family does not provide the integrated HART Field Communicator functionality available with appropriate ADT760A configurations.<\/p>\n<p>Users requiring HART communication with intelligent pressure transmitters should therefore select the appropriate ADT 760A model.<\/p>\n<p>For users primarily requiring automatic low-pressure generation and control, the ADT 760S-LLP provides the simpler solution.<\/p>\n<h2>No Data Logging<\/h2>\n<p>Additel specifies that:<\/p>\n<p><strong>data logging is available only on ADT760A models<\/strong><\/p>\n<p>The ADT 760S-LLP should therefore not be advertised with the integrated data logging functionality of the ADT 760A.<\/p>\n<p>There are also no LLP-DL, D-DL or MA-DL variants within the ADT 760S family.<\/p>\n<p>The ADT 760S series consists of:<\/p>\n<ul>\n<li>ADT 760S-LLP<\/li>\n<li>ADT 760S-D<\/li>\n<li>ADT 760S-MA<\/li>\n<\/ul>\n<h2>Modern Touchscreen Operation<\/h2>\n<p>The ADT760S platform features a large capacitive touchscreen.<\/p>\n<p>Pressure setpoints and instrument functions can be configured directly through the user interface.<\/p>\n<p>For repetitive calibration work, automatic setpoint generation eliminates much of the manual pressure adjustment required with conventional hand pumps.<\/p>\n<p>This can make multipoint pressure calibration considerably more convenient.<\/p>\n<h2>Bluetooth, Wi-Fi and USB<\/h2>\n<p>The <strong>Additel ADT 760S-LLP<\/strong> supports:<\/p>\n<p><strong>Bluetooth<\/strong><\/p>\n<p><strong>Wi-Fi<\/strong><\/p>\n<p>and:<\/p>\n<p><strong>USB<\/strong><\/p>\n<p>communication.<\/p>\n<p>These interfaces provide flexible connectivity for supported device communication, software interaction and instrument maintenance.<\/p>\n<p>They should not, however, be confused with the advanced process-device communication functionality available on appropriate ADT760A configurations.<\/p>\n<h2>Optional Contamination Prevention System<\/h2>\n<p>The ADT760A\/760S platform supports Additel&#8217;s optional:<\/p>\n<p><strong>Contamination Prevention System \u2013 CPS<\/strong><\/p>\n<p>The system is designed to help prevent liquids and contaminants from entering the internal pneumatic system from a connected device under test.<\/p>\n<p>Potential contaminants include:<\/p>\n<ul>\n<li>Moisture<\/li>\n<li>Oil<\/li>\n<li>Dirt<\/li>\n<li>Process residues<\/li>\n<li>Particles<\/li>\n<\/ul>\n<p>Protecting the internal pneumatic components is particularly valuable when the calibrator is used in industrial field applications.<\/p>\n<h2>Compact Handheld Design<\/h2>\n<p>The ADT760S platform weighs less than:<\/p>\n<p><strong>4 lb \/ 1.8 kg<\/strong><\/p>\n<p>This makes it suitable for both laboratory and mobile calibration work.<\/p>\n<p>Instead of transporting a separate low-pressure pump, pressure controller and reference pressure instrument, the user can perform many low-pressure calibration tasks with one compact automatic system.<\/p>\n<h2>Technical Highlights<\/h2>\n<p><strong>Model:<\/strong> Additel ADT 760S-LLP<\/p>\n<p><strong>Device type:<\/strong> Automatic Low Pressure Calibrator<\/p>\n<p><strong>Pressure type:<\/strong> Gauge and Differential<\/p>\n<p><strong>Maximum internal range:<\/strong> \u00b175 mbar<\/p>\n<p><strong>Maximum internal range:<\/strong> \u00b130 inH\u2082O<\/p>\n<p><strong>Maximum internal range:<\/strong> Approx. \u00b17.5 kPa<\/p>\n<p><strong>Lowest available internal module range:<\/strong> \u00b10.62 mbar<\/p>\n<p><strong>Lowest available internal module range:<\/strong> \u00b10.25 inH\u2082O<\/p>\n<p><strong>Pressure accuracy:<\/strong> 0.05 % FS<\/p>\n<p><strong>Control stability:<\/strong> 0.005 % FS or 0.05 Pa, whichever is greater<\/p>\n<p><strong>Over-range indication:<\/strong> 120 %<\/p>\n<p><strong>Pressure resolution:<\/strong> 6 digits<\/p>\n<p><strong>Pressure generation:<\/strong> Automatic<\/p>\n<p><strong>Pressure control:<\/strong> Automatic<\/p>\n<p><strong>Internal pressure module:<\/strong> Interchangeable ADT155<\/p>\n<p><strong>External pressure measurement channels:<\/strong> 2<\/p>\n<p><strong>LLP pressure connection:<\/strong> Barb fitting<\/p>\n<p><strong>Pressure output rate:<\/strong> &lt;30 seconds at 30 inH\u2082O \/ 100 ml<\/p>\n<p><strong>Electrical measurement ports:<\/strong> No<\/p>\n<p><strong>HART:<\/strong> No<\/p>\n<p><strong>Data logging:<\/strong> No<\/p>\n<p><strong>DL version:<\/strong> No<\/p>\n<p><strong>Communication:<\/strong> Bluetooth, Wi-Fi and USB<\/p>\n<p><strong>Weight:<\/strong> Less than approximately 1.8 kg<\/p>\n<p><strong>Contamination Prevention System:<\/strong> Optional<\/p>\n<h2>Technical Data<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>Additel ADT 760S-LLP<\/th>\n<\/tr>\n<tr>\n<td>Device type<\/td>\n<td>Automatic Low Pressure Calibrator<\/td>\n<\/tr>\n<tr>\n<td>Maximum pressure range<\/td>\n<td>\u00b175 mbar<\/td>\n<\/tr>\n<tr>\n<td>Maximum pressure range<\/td>\n<td>\u00b130 inH\u2082O<\/td>\n<\/tr>\n<tr>\n<td>Maximum pressure range<\/td>\n<td>Approx. \u00b17.5 kPa<\/td>\n<\/tr>\n<tr>\n<td>Smallest available internal range<\/td>\n<td>\u00b10.62 mbar \/ \u00b10.25 inH\u2082O<\/td>\n<\/tr>\n<tr>\n<td>Pressure types<\/td>\n<td>Gauge \/ Differential<\/td>\n<\/tr>\n<tr>\n<td>Pressure accuracy<\/td>\n<td>0.05 % FS<\/td>\n<\/tr>\n<tr>\n<td>Control stability<\/td>\n<td>0.005 % FS or 0.05 Pa, whichever is greater<\/td>\n<\/tr>\n<tr>\n<td>Over-range indication<\/td>\n<td>120 %<\/td>\n<\/tr>\n<tr>\n<td>Pressure resolution<\/td>\n<td>6 digits<\/td>\n<\/tr>\n<tr>\n<td>Internal module<\/td>\n<td>Interchangeable ADT155<\/td>\n<\/tr>\n<tr>\n<td>Pressure generation<\/td>\n<td>Automatic<\/td>\n<\/tr>\n<tr>\n<td>Pressure control<\/td>\n<td>Automatic<\/td>\n<\/tr>\n<tr>\n<td>Pressure connection<\/td>\n<td>Barb fitting<\/td>\n<\/tr>\n<tr>\n<td>Output rate<\/td>\n<td>&lt;30 s at 30 inH\u2082O \/ 100 ml<\/td>\n<\/tr>\n<tr>\n<td>External pressure channels<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>Integrated electrical measurement<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>Integrated electrical source<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>HART<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>Data logging<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>DL model<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>Communication<\/td>\n<td>Bluetooth, Wi-Fi, USB<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>&lt;1.8 kg \/ 4 lb<\/td>\n<\/tr>\n<tr>\n<td>CPS<\/td>\n<td>Optional<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>ADT 760S-LLP vs. ADT 760A-LLP<\/h2>\n<p>The pressure specifications of the ADT 760S-LLP and ADT 760A-LLP are essentially the same, but their functional scope is different.<\/p>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>ADT 760S-LLP<\/th>\n<th>ADT 760A-LLP<\/th>\n<\/tr>\n<tr>\n<td>Maximum range<\/td>\n<td>\u00b175 mbar<\/td>\n<td>\u00b175 mbar<\/td>\n<\/tr>\n<tr>\n<td>Smallest internal module<\/td>\n<td>\u00b10.62 mbar<\/td>\n<td>\u00b10.62 mbar<\/td>\n<\/tr>\n<tr>\n<td>Pressure type<\/td>\n<td>Gauge \/ Differential<\/td>\n<td>Gauge \/ Differential<\/td>\n<\/tr>\n<tr>\n<td>Accuracy<\/td>\n<td>0.05 % FS<\/td>\n<td>0.05 % FS<\/td>\n<\/tr>\n<tr>\n<td>Stability<\/td>\n<td>0.005 % FS or 0.05 Pa<\/td>\n<td>0.005 % FS or 0.05 Pa<\/td>\n<\/tr>\n<tr>\n<td>Automatic pressure generation<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Interchangeable ADT155 module<\/td>\n<td>Yes<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Integrated electrical ports<\/td>\n<td><strong>No<\/strong><\/td>\n<td><strong>Yes<\/strong><\/td>\n<\/tr>\n<tr>\n<td>HART functionality<\/td>\n<td><strong>No<\/strong><\/td>\n<td>Available depending on 760A configuration<\/td>\n<\/tr>\n<tr>\n<td>Data logging<\/td>\n<td><strong>No<\/strong><\/td>\n<td>Available on ADT760A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The <strong>ADT 760S-LLP<\/strong> is therefore the preferred choice when the primary requirement is automatic low-pressure generation and precise pressure control.<\/p>\n<p>The <strong>ADT 760A-LLP<\/strong> should be selected when pressure calibration must also be combined with integrated electrical process calibration or advanced device communication functions.<\/p>\n<h2>ADT 760S-LLP vs. ADT 760S-D and ADT 760S-MA<\/h2>\n<p>The ADT760S family covers three different pressure application areas:<\/p>\n<table>\n<tbody>\n<tr>\n<th>Model<\/th>\n<th>Pressure Range<\/th>\n<th>Pressure Type<\/th>\n<\/tr>\n<tr>\n<td><strong>ADT 760S-LLP<\/strong><\/td>\n<td><strong>\u00b175 mbar<\/strong><\/td>\n<td><strong>Gauge \/ Differential<\/strong><\/td>\n<\/tr>\n<tr>\n<td>ADT 760S-D<\/td>\n<td>-0.86 to +2.5 bar<\/td>\n<td>Gauge \/ Differential<\/td>\n<\/tr>\n<tr>\n<td>ADT 760S-MA<\/td>\n<td>-0.86 to +25 bar<\/td>\n<td>Gauge \/ Absolute<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The <strong>ADT 760S-LLP<\/strong> provides the lowest pressure capability and is optimized for sensitive low-pressure and differential pressure applications.<\/p>\n<p>The ADT 760S-D extends the range to 2.5 bar while retaining gauge and differential pressure capability.<\/p>\n<p>The ADT 760S-MA extends the pressure range to 25 bar and is intended for gauge and absolute pressure applications.<\/p>\n<h2>Typical Calibration Applications<\/h2>\n<p>The <strong>Additel ADT 760S-LLP Low Pressure Calibrator<\/strong> is particularly suitable for calibration and testing of:<\/p>\n<ul>\n<li>Differential pressure transmitters<\/li>\n<li>Low-pressure transmitters<\/li>\n<li>Low-pressure sensors<\/li>\n<li>Differential pressure gauges<\/li>\n<li>HVAC pressure instrumentation<\/li>\n<li>Cleanroom pressure transmitters<\/li>\n<li>Filter monitoring instruments<\/li>\n<li>Airflow-related instrumentation<\/li>\n<li>Pneumatic low-pressure equipment<\/li>\n<li>Laboratory pressure instruments<\/li>\n<\/ul>\n<p>Typical users include:<\/p>\n<ul>\n<li>Professional calibration laboratories<\/li>\n<li>HVAC service organizations<\/li>\n<li>Pharmaceutical industry<\/li>\n<li>Cleanroom operators<\/li>\n<li>Process industry<\/li>\n<li>Industrial maintenance departments<\/li>\n<li>Quality assurance departments<\/li>\n<li>Instrument manufacturers<\/li>\n<li>Field service technicians<\/li>\n<\/ul>\n<h2>Calibration and Service by europascal<\/h2>\n<p>At very low pressures, even small absolute deviations can become significant relative to the applied pressure.<\/p>\n<p>Regular calibration of the internal pressure module is therefore particularly important for maintaining reliable metrological performance.<\/p>\n<p>The <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal calibration service<\/a> provides professional calibration solutions for low-pressure calibrators, differential pressure instruments, pressure modules, pressure sensors and pressure transmitters.<\/p>\n<p>europascal can also support customers in selecting the appropriate ADT155 pressure module, pressure range, adapters and accessories.<\/p>\n<h2>Why Choose the Additel ADT 760S-LLP?<\/h2>\n<p>The <strong>Additel ADT 760S-LLP Precise Low Pressure Calibrator<\/strong> combines automatic pressure generation and control with interchangeable precision pressure modules in a compact handheld instrument.<\/p>\n<p>Its maximum range of <strong>\u00b175 mbar<\/strong>, available ADT155 internal ranges down to <strong>\u00b10.62 mbar<\/strong>, pressure accuracy of <strong>0.05 % FS<\/strong> and control stability of <strong>0.005 % FS or 0.05 Pa, whichever is greater<\/strong> make it specifically suited to demanding low-pressure and differential pressure applications.<\/p>\n<p>The simplified ADT760S architecture focuses on pressure generation and pressure measurement without the integrated electrical process-calibration and advanced communication functions of the ADT760A.<\/p>\n<p>For calibration laboratories and technicians who already use separate electrical reference equipment, this provides an efficient and flexible solution for automated low-pressure calibration.<\/p>\n<p><strong>Looking for the Additel ADT 760S-LLP or an automatic solution for precise low and differential pressure calibration? Contact europascal for expert advice, suitable ADT155 module configurations, accessories and professional calibration services.<\/strong><\/p>\n<p><a href=\"https:\/\/europascal.de\/en\/product\/additel-adt-760s\/\">Further Additel ADT 760S information from europascal can be found here.<\/a><\/p>\n<p><a href=\"https:\/\/europascal.de\/produkt-kategorie\/druck\/\">Further pressure calibration products from europascal can be found here.<\/a><\/p>\n<p><a href=\"https:\/\/additel.com\/product-detail.html\/760A-760S-automatic-handheld-pressure-calibrator\/\" target=\"_blank\" rel=\"noopener\">Manufacturer information about the Additel ADT 760S-LLP 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-760A-ADT-760S-Automatic-Handheld-Pressure-Calibrators-20260317-1.pdf\"> <span style=\"color: #0000ff;\"><strong><em>Download Datasheet<\/em><\/strong><\/span> <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The <strong>Additel ADT 760S-LLP Low Pressure Calibrator<\/strong> is a compact, fully automatic handheld solution for precise gauge and differential pressure calibration. It supports internal pressure ranges up to <strong>\u00b175 mbar (\u00b130 inH\u2082O)<\/strong> and interchangeable ADT155 modules with ranges down to <strong>\u00b10.62 mbar (\u00b10.25 inH\u2082O)<\/strong>. With <strong>0.05 % FS accuracy<\/strong> and control stability of <strong>0.005 % FS or 0.05 Pa, whichever is greater<\/strong>, the ADT 760S-LLP is ideal for differential pressure transmitters, HVAC instrumentation, cleanroom monitoring, filter applications and other demanding low-pressure calibration tasks.<\/p>\n","protected":false},"featured_media":3231,"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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