{"id":6559,"date":"2026-07-17T16:23:46","date_gmt":"2026-07-17T16:23:46","guid":{"rendered":"https:\/\/europascal.de\/product\/ametek-asc-400\/"},"modified":"2026-09-29T09:38:06","modified_gmt":"2026-09-29T09:38:06","slug":"ametek-asc-400","status":"publish","type":"product","link":"https:\/\/europascal.de\/en\/product\/ametek-asc-400\/","title":{"rendered":"AMETEK JOFRA ASC-400 Versatile Multifunction Process Calibrator"},"content":{"rendered":"<p><strong>AMETEK JOFRA ASC-400<\/strong> is a versatile multifunction process calibrator for measuring, sourcing and simulating electrical signals, RTDs and thermocouples in laboratory, field and industrial calibration applications. Combined with optional AMETEK Crystal APM CPF pressure modules or JOFRA dry-block calibrators, the ASC-400 expands into a comprehensive calibration solution for electrical, temperature and pressure applications.<\/p>\n<p>Designed as a portable handheld instrument, the ASC-400 combines laboratory-level functionality with an intuitive user interface, full-color display and rugged construction. It can measure and source current, voltage, resistance and frequency, simulate and measure RTDs and thermocouples, generate pulse trains and provide isolated read-back while sourcing another signal.<\/p>\n<p>The calibrator supports <strong>16 RTD types and 13 thermocouple types<\/strong>. Electrical functions include current from 0 to 24 mA, voltage source up to 20 V, isolated voltage measurement up to 30 V, resistance up to 4000 \u03a9 and frequency up to 10 kHz.<\/p>\n<p>The ASC-400 also incorporates AMETEK&#8217;s <strong>True Ohm technology<\/strong>, allowing high-accuracy resistance and temperature measurements. Using Callendar-van Dusen coefficients, the instrument can function as a precision thermometer with a suitable calibrated RTD.<\/p>\n<p>At <strong>europascal<\/strong>, we provide professional solutions for process, electrical, temperature and pressure calibration. The ASC-400 is particularly suitable for users who want to combine several calibration functions in one portable platform.<\/p>\n<p>For professional calibration and metrological traceability of the ASC-400 and other measurement equipment, 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>AMETEK JOFRA ASC-400<\/strong> combines a broad range of process calibration functions in one portable instrument.<\/p>\n<p>Key benefits include:<\/p>\n<ul>\n<li>Multifunction process and signal calibrator<\/li>\n<li>Measure and source current<\/li>\n<li>Measure and source voltage<\/li>\n<li>Measure and source resistance<\/li>\n<li>Measure and source frequency<\/li>\n<li>Pulse train generation<\/li>\n<li>RTD measurement and simulation<\/li>\n<li>Support for 16 RTD types<\/li>\n<li>Thermocouple measurement and simulation<\/li>\n<li>Support for 13 thermocouple types<\/li>\n<li>24 VDC transmitter loop power<\/li>\n<li>Integrated 250 \u03a9 HART resistor<\/li>\n<li>Isolated electrical read-back<\/li>\n<li>Simultaneous source and measurement capability<\/li>\n<li>True Ohm technology<\/li>\n<li>Callendar-van Dusen coefficient support<\/li>\n<li>Automatic switch testing<\/li>\n<li>Leak testing<\/li>\n<li>Scaling functions<\/li>\n<li>Online percentage error calculation<\/li>\n<li>Auto Step and Auto Ramp<\/li>\n<li>Pressure calibration with optional APM CPF modules<\/li>\n<li>Gauge and absolute pressure capability<\/li>\n<li>Temperature calibration with JOFRA dry-block calibrators<\/li>\n<li>Full-color display<\/li>\n<li>Connection Assistant<\/li>\n<li>Numerical keypad<\/li>\n<li>USB communication<\/li>\n<li>JofraCal software compatibility<\/li>\n<li>Fuseless input protection<\/li>\n<li>Portable battery operation<\/li>\n<\/ul>\n<h2>Multifunction Process Calibration<\/h2>\n<p>The <strong>AMETEK JOFRA ASC-400<\/strong> is designed to reduce the number of individual instruments required for process calibration.<\/p>\n<p>Modern industrial plants use many different process signals and sensor types, including:<\/p>\n<ul>\n<li>4\u201320 mA current signals<\/li>\n<li>Voltage signals<\/li>\n<li>Resistance signals<\/li>\n<li>RTDs<\/li>\n<li>Thermocouples<\/li>\n<li>Frequency signals<\/li>\n<li>Pulse signals<\/li>\n<li>Pressure transmitters<\/li>\n<li>Temperature transmitters<\/li>\n<li>Process switches<\/li>\n<\/ul>\n<p>The ASC-400 combines measurement and source functions for many of these signals within one handheld instrument.<\/p>\n<p>This makes it suitable for calibration laboratories as well as maintenance, commissioning and field service applications.<\/p>\n<h2>Current Measurement and Source<\/h2>\n<p>The <strong>AMETEK JOFRA ASC-400<\/strong> measures and sources DC current from:<\/p>\n<p><strong>0 to 24 mA<\/strong>.<\/p>\n<p>The specified 12-month accuracy for both current measurement and source is:<\/p>\n<p><strong>\u00b1(0.010% of reading + 2 \u00b5A)<\/strong>.<\/p>\n<p>Both isolated and non-isolated current measurement are available.<\/p>\n<p>This makes the ASC-400 particularly suitable for standard <strong>4\u201320 mA process loops<\/strong>.<\/p>\n<p>Typical applications include calibration of:<\/p>\n<ul>\n<li>Pressure transmitters<\/li>\n<li>Temperature transmitters<\/li>\n<li>Flow transmitters<\/li>\n<li>Level transmitters<\/li>\n<li>Process indicators<\/li>\n<li>PLC analog inputs<\/li>\n<li>Controllers<\/li>\n<\/ul>\n<p>The calibrator can source a defined current while simultaneously monitoring another relevant signal.<\/p>\n<h2>24 V Loop Power<\/h2>\n<p>The ASC-400 incorporates:<\/p>\n<p><strong>24 VDC transmitter loop power<\/strong>.<\/p>\n<p>This allows suitable two-wire transmitters to be powered directly from the calibrator during testing.<\/p>\n<p>A separate external loop power supply is therefore unnecessary for many routine process calibration tasks.<\/p>\n<p>The ASC-400 also incorporates a software-selectable:<\/p>\n<p><strong>250 \u03a9 HART resistor<\/strong>.<\/p>\n<p>This simplifies the electrical setup when an appropriate resistance is required in a process loop for external HART communication equipment.<\/p>\n<h2>Voltage Measurement and Source<\/h2>\n<p>The <strong>AMETEK JOFRA ASC-400<\/strong> provides both voltage measurement and voltage generation.<\/p>\n<p>The non-isolated voltage measurement range is:<\/p>\n<p><strong>0 to 20 VDC<\/strong>.<\/p>\n<p>The isolated measurement input extends to:<\/p>\n<p><strong>0 to 30 VDC<\/strong>.<\/p>\n<p>Voltage can be sourced from:<\/p>\n<p><strong>0 to 20 VDC<\/strong>.<\/p>\n<p>AMETEK specifies a 12-month accuracy of:<\/p>\n<p><strong>\u00b1(0.01% of reading + 2 mV)<\/strong><\/p>\n<p>for these voltage functions.<\/p>\n<p>This provides additional flexibility when testing process transmitters, control systems, indicators and other electrical instrumentation.<\/p>\n<h2>Resistance Measurement and Source<\/h2>\n<p>Resistance can be measured and simulated over a range extending to:<\/p>\n<p><strong>4000 \u03a9<\/strong>.<\/p>\n<p>The ASC-400 supports resistance source values from approximately:<\/p>\n<p><strong>5 to 4000 \u03a9<\/strong>.<\/p>\n<p>This capability is particularly important for RTD simulation and testing temperature measurement systems.<\/p>\n<p>The resistance measurement functions also support AMETEK&#8217;s True Ohm technology.<\/p>\n<h2>True Ohm Technology<\/h2>\n<p>An important feature of the <strong>AMETEK JOFRA ASC-400<\/strong> is its <strong>True Ohm<\/strong> measurement technology.<\/p>\n<p>Instead of relying only on a conventional resistance measurement, the ASC-400 is designed for accurate measurement of RTDs under realistic operating conditions.<\/p>\n<p>Combined with Callendar-van Dusen coefficients, this allows the calibrator to function as a high-accuracy thermometer when used with a suitable calibrated RTD.<\/p>\n<p>This capability is particularly valuable in calibration laboratories where an RTD is used as a reference thermometer.<\/p>\n<h2>RTD Measurement and Simulation<\/h2>\n<p>The <strong>AMETEK JOFRA ASC-400<\/strong> supports:<\/p>\n<p><strong>16 different RTD types<\/strong>.<\/p>\n<p>It provides both RTD measurement and simulation.<\/p>\n<p>Supported configurations include:<\/p>\n<ul>\n<li>2-wire RTD<\/li>\n<li>3-wire RTD<\/li>\n<li>4-wire RTD<\/li>\n<\/ul>\n<p>depending on the selected function.<\/p>\n<p>This allows the ASC-400 to be used for testing:<\/p>\n<ul>\n<li>RTD sensors<\/li>\n<li>Temperature transmitters<\/li>\n<li>Temperature indicators<\/li>\n<li>PLC RTD inputs<\/li>\n<li>Process controllers<\/li>\n<li>Data acquisition systems<\/li>\n<\/ul>\n<p>The RTD simulation is fast enough to work with pulsed transmitters and PLC systems.<\/p>\n<h2>Callendar-van Dusen Coefficients<\/h2>\n<p>For high-accuracy temperature measurement, the ASC-400 supports <strong>Callendar-van Dusen coefficients<\/strong>.<\/p>\n<p>Instead of using only a standardized nominal Pt100 characteristic, the individual coefficients of a calibrated RTD can be entered into the instrument.<\/p>\n<p>The ASC-400 can then calculate temperature based on the actual characteristic of the connected reference sensor.<\/p>\n<p>This makes the instrument useful as a precision temperature readout in addition to its process calibration functions.<\/p>\n<h2>Thermocouple Measurement and Simulation<\/h2>\n<p>The ASC-400 supports:<\/p>\n<p><strong>13 thermocouple types<\/strong>.<\/p>\n<p>Supported thermocouple characteristics include common industrial types such as:<\/p>\n<ul>\n<li>B<\/li>\n<li>E<\/li>\n<li>J<\/li>\n<li>K<\/li>\n<li>N<\/li>\n<li>R<\/li>\n<li>S<\/li>\n<li>T<\/li>\n<\/ul>\n<p>as well as additional characteristics listed by AMETEK.<\/p>\n<p>Both thermocouple measurement and simulation are available.<\/p>\n<p>This allows the ASC-400 to test temperature transmitters, indicators, controllers and data acquisition systems without generating a physical reference temperature.<\/p>\n<h2>Cold Junction Compensation<\/h2>\n<p>Thermocouple measurements require compensation for the temperature at the electrical reference junction.<\/p>\n<p>The ASC-400 provides internal cold junction compensation.<\/p>\n<p>AMETEK specifies the cold junction compensation accuracy as:<\/p>\n<p><strong>\u00b10.2 \u00b0C<\/strong><\/p>\n<p>within the specified ambient range for this function.<\/p>\n<p>This supports convenient direct thermocouple measurement and simulation in field and laboratory applications.<\/p>\n<h2>Frequency Measurement and Source<\/h2>\n<p>The <strong>AMETEK JOFRA ASC-400<\/strong> measures and generates frequency signals.<\/p>\n<p>The frequency range extends from approximately:<\/p>\n<p><strong>0.05 Hz to 10 kHz<\/strong>.<\/p>\n<p>This makes the calibrator useful for process instrumentation using frequency-based signals.<\/p>\n<p>Typical applications can include:<\/p>\n<ul>\n<li>Frequency transmitters<\/li>\n<li>Flow instrumentation<\/li>\n<li>Counters<\/li>\n<li>PLC frequency inputs<\/li>\n<li>Process indicators<\/li>\n<\/ul>\n<h2>Pulse Train Output<\/h2>\n<p>In addition to continuous frequency generation, the ASC-400 provides a pulse train output.<\/p>\n<p>Pulse trains can contain up to:<\/p>\n<p><strong>99,999 pulses<\/strong><\/p>\n<p>with rates from:<\/p>\n<p><strong>1 Hz to 10 kHz<\/strong>.<\/p>\n<p>This functionality is particularly useful when checking totalizers, counters and pulse-based process instrumentation.<\/p>\n<h2>Simultaneous Source and Read-Back<\/h2>\n<p>A major advantage of the <strong>AMETEK JOFRA ASC-400<\/strong> is its ability to source a signal while simultaneously monitoring the device under test.<\/p>\n<p>The isolated read-back channel can measure signals such as:<\/p>\n<ul>\n<li>mA<\/li>\n<li>Voltage<\/li>\n<li>Pressure with an appropriate module<\/li>\n<\/ul>\n<p>while another calibration signal is being generated.<\/p>\n<p>This is particularly useful for transmitter calibration.<\/p>\n<p>Instead of using a separate source and multimeter, the ASC-400 can perform both functions in one test setup.<\/p>\n<h2>Pressure Calibration with APM CPF Modules<\/h2>\n<p>The ASC-400 can be expanded into a full-featured pressure calibrator using compatible <strong>AMETEK Crystal APM CPF pressure modules<\/strong>.<\/p>\n<p>Available module ranges extend from vacuum through high pressure.<\/p>\n<p>The current ASC-400 datasheet lists APM CPF ranges up to:<\/p>\n<p><strong>1000 bar \/ 100 MPa \/ 15,000 psi<\/strong>.<\/p>\n<p>Depending on range, pressure measurement performance can reach:<\/p>\n<p><strong>0.025% of reading<\/strong>.<\/p>\n<p>The modules are temperature compensated over <strong>-10 to 50 \u00b0C<\/strong>, and their accuracy specification includes effects such as hysteresis, nonlinearity, repeatability and reference standard uncertainty.<\/p>\n<h2>Gauge and Absolute Pressure<\/h2>\n<p>The ASC-400 supports gauge pressure calibration with suitable APM CPF pressure modules.<\/p>\n<p>An optional <strong>BARO module<\/strong> can be used together with compatible pressure modules to convert gauge pressure measurements to absolute pressure.<\/p>\n<p>This provides additional flexibility for users working with both gauge and absolute pressure instruments.<\/p>\n<h2>Automatic Leak Test<\/h2>\n<p>When configured for pressure calibration, the <strong>AMETEK JOFRA ASC-400<\/strong> provides an automatic leak test function.<\/p>\n<p>This is useful for checking the integrity of pressure calibration setups before performing the actual calibration.<\/p>\n<p>Leak testing helps identify problems such as:<\/p>\n<ul>\n<li>Loose pressure connections<\/li>\n<li>Leaking fittings<\/li>\n<li>Defective hoses<\/li>\n<li>Leaking valves<\/li>\n<li>Problems with the device under test<\/li>\n<\/ul>\n<p>The function can therefore improve confidence in pressure calibration results.<\/p>\n<h2>Automatic Switch Calibration<\/h2>\n<p>The ASC-400 incorporates switch calibration functionality.<\/p>\n<p>This allows the instrument to test process switches such as:<\/p>\n<ul>\n<li>Pressure switches<\/li>\n<li>Temperature switches<\/li>\n<li>Electrical switches<\/li>\n<\/ul>\n<p>When combined with an appropriate pressure module, the ASC-400 becomes particularly useful for pressure switch calibration.<\/p>\n<h2>Temperature Calibration with JOFRA Dry Blocks<\/h2>\n<p>The <strong>AMETEK JOFRA ASC-400<\/strong> can also be combined with JOFRA dry-block temperature calibrators.<\/p>\n<p>In this configuration, the dry block generates the physical temperature while the ASC-400 reads the sensor or electrical output of the device under test.<\/p>\n<p>This creates a versatile temperature calibration system for:<\/p>\n<ul>\n<li>RTDs<\/li>\n<li>Thermocouples<\/li>\n<li>Temperature transmitters<\/li>\n<li>Temperature switches<\/li>\n<li>Temperature indicators<\/li>\n<\/ul>\n<p>The ASC-400 can therefore form part of a complete JOFRA temperature calibration workstation.<\/p>\n<h2>Percentage Error Calculation<\/h2>\n<p>The ASC-400 provides online <strong>% error calculation<\/strong>.<\/p>\n<p>Instead of manually calculating the deviation between the generated reference value and the device under test, the calibrator can display the error directly.<\/p>\n<p>This can save time during repetitive calibration procedures and reduce the risk of calculation errors.<\/p>\n<h2>Scaling Functions<\/h2>\n<p>User-defined scaling is also available.<\/p>\n<p>Scaling allows electrical process signals to be displayed in engineering units that correspond to the actual process quantity.<\/p>\n<p>For example, a 4\u201320 mA transmitter signal can be scaled to represent pressure, temperature, flow or another process parameter.<\/p>\n<p>This makes calibration results easier to interpret directly at the instrument.<\/p>\n<h2>Auto Step and Auto Ramp<\/h2>\n<p>The <strong>AMETEK JOFRA ASC-400<\/strong> provides automatic Step and Ramp functions.<\/p>\n<p>Auto Step can move automatically through predefined output points.<\/p>\n<p>Auto Ramp continuously changes the generated signal over a selected range.<\/p>\n<p>These functions are useful for testing:<\/p>\n<ul>\n<li>Analog indicators<\/li>\n<li>Transmitters<\/li>\n<li>Controllers<\/li>\n<li>PLC inputs<\/li>\n<li>Recorders<\/li>\n<li>Alarm functions<\/li>\n<\/ul>\n<p>AMETEK specifies selectable timing for both functions, allowing automated signal changes during calibration.<\/p>\n<h2>Connection Assistant<\/h2>\n<p>The ASC-400 includes a graphical <strong>Connection Assistant<\/strong>.<\/p>\n<p>The assistant displays the correct terminal connections for the currently selected measurement or source function.<\/p>\n<p>If the selected parameter changes, the connection information changes accordingly.<\/p>\n<p>This can reduce incorrect connections, simplify instrument operation and shorten training time for new users.<\/p>\n<h2>Full-Color Display and Numerical Keypad<\/h2>\n<p>The <strong>AMETEK JOFRA ASC-400<\/strong> features a large full-color display and a complete numerical keypad with cursor and function keys.<\/p>\n<p>This provides direct access to calibration values and reduces the need to navigate through complex menu structures.<\/p>\n<p>The display is designed to show both source and measurement information clearly during calibration tasks.<\/p>\n<h2>Fuseless Protection<\/h2>\n<p>The ASC-400 uses <strong>fuseless protection<\/strong>.<\/p>\n<p>This design protects the instrument against common electrical connection errors without requiring conventional replaceable input fuses.<\/p>\n<p>For calibration technicians working in industrial environments, this can reduce downtime following accidental incorrect connections.<\/p>\n<h2>Battery Operation<\/h2>\n<p>The ASC-400 is designed for portable operation using six AA batteries.<\/p>\n<p>AMETEK specifies battery operation of approximately:<\/p>\n<p><strong>30 hours<\/strong><\/p>\n<p>with low backlight and no loop power.<\/p>\n<p>With high backlight and a 12 mA loop load, battery life is approximately:<\/p>\n<p><strong>13 hours<\/strong>.<\/p>\n<p>An optional rechargeable NiMH battery configuration and external power supply\/charger are also available.<\/p>\n<h2>JofraCal Calibration Software<\/h2>\n<p>The <strong>AMETEK JOFRA ASC-400<\/strong> is compatible with <strong>JofraCal calibration software<\/strong>.<\/p>\n<p>JofraCal can be used with AMETEK temperature, signal and pressure calibrators and supports calibration of RTDs, thermocouples, transmitters, temperature switches, pressure gauges and pressure switches.<\/p>\n<p>Stored procedures and setups can help reduce manual input and improve consistency in recurring calibration tasks.<\/p>\n<h2>Typical Applications<\/h2>\n<p>The ASC-400 is suitable for a wide range of professional calibration applications, including:<\/p>\n<ul>\n<li>4\u201320 mA process loop calibration<\/li>\n<li>Pressure transmitter calibration<\/li>\n<li>Temperature transmitter calibration<\/li>\n<li>RTD calibration<\/li>\n<li>Thermocouple calibration<\/li>\n<li>Pressure gauge calibration<\/li>\n<li>Pressure switch calibration<\/li>\n<li>Temperature switch calibration<\/li>\n<li>PLC input testing<\/li>\n<li>Process indicator calibration<\/li>\n<li>Frequency instrument calibration<\/li>\n<li>Pulse and totalizer testing<\/li>\n<li>Process troubleshooting<\/li>\n<li>Commissioning<\/li>\n<li>Preventive maintenance<\/li>\n<li>Laboratory calibration<\/li>\n<li>Field calibration<\/li>\n<\/ul>\n<h2>Technical Highlights<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>AMETEK JOFRA ASC-400<\/th>\n<\/tr>\n<tr>\n<td>Device type<\/td>\n<td>Multifunction Process Calibrator<\/td>\n<\/tr>\n<tr>\n<td>Current measure\/source<\/td>\n<td>0 to 24 mA<\/td>\n<\/tr>\n<tr>\n<td>Current accuracy<\/td>\n<td>\u00b1(0.010% rdg + 2 \u00b5A)<\/td>\n<\/tr>\n<tr>\n<td>Voltage source<\/td>\n<td>0 to 20 V<\/td>\n<\/tr>\n<tr>\n<td>Voltage measurement<\/td>\n<td>0 to 30 V isolated<\/td>\n<\/tr>\n<tr>\n<td>Voltage accuracy<\/td>\n<td>\u00b1(0.01% rdg + 2 mV)<\/td>\n<\/tr>\n<tr>\n<td>Resistance<\/td>\n<td>5 to 4000 \u03a9 source<\/td>\n<\/tr>\n<tr>\n<td>Frequency<\/td>\n<td>0.05 Hz to 10 kHz<\/td>\n<\/tr>\n<tr>\n<td>Pulse output<\/td>\n<td>Up to 99,999 pulses<\/td>\n<\/tr>\n<tr>\n<td>RTD types<\/td>\n<td>16<\/td>\n<\/tr>\n<tr>\n<td>Thermocouple types<\/td>\n<td>13<\/td>\n<\/tr>\n<tr>\n<td>RTD wiring<\/td>\n<td>2-, 3- and 4-wire<\/td>\n<\/tr>\n<tr>\n<td>Loop power<\/td>\n<td>24 VDC<\/td>\n<\/tr>\n<tr>\n<td>HART resistor<\/td>\n<td>250 \u03a9 selectable<\/td>\n<\/tr>\n<tr>\n<td>Isolated read-back<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>True Ohm<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>CvD coefficients<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Pressure<\/td>\n<td>Optional APM CPF modules<\/td>\n<\/tr>\n<tr>\n<td>Maximum APM range<\/td>\n<td>Up to 1000 bar \/ 15,000 psi<\/td>\n<\/tr>\n<tr>\n<td>Pressure accuracy<\/td>\n<td>Down to 0.025% of reading<\/td>\n<\/tr>\n<tr>\n<td>Absolute pressure<\/td>\n<td>With BARO option<\/td>\n<\/tr>\n<tr>\n<td>Leak test<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Switch test<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Scaling<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>% error calculation<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Auto Step \/ Ramp<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Connection Assistant<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Communication<\/td>\n<td>USB<\/td>\n<\/tr>\n<tr>\n<td>Software<\/td>\n<td>JofraCal<\/td>\n<\/tr>\n<tr>\n<td>Battery<\/td>\n<td>6 \u00d7 AA<\/td>\n<\/tr>\n<tr>\n<td>Battery operation<\/td>\n<td>Up to approx. 30 hours<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Why Choose the AMETEK JOFRA ASC-400?<\/h2>\n<p>The <strong>AMETEK JOFRA ASC-400<\/strong> combines electrical, temperature and optional pressure calibration functions in one portable instrument.<\/p>\n<p>Its electrical capabilities cover the signals commonly found in industrial process measurement, including mA, voltage, resistance, frequency and pulses. With <strong>16 RTD and 13 thermocouple types<\/strong>, the instrument also provides extensive temperature measurement and simulation capability.<\/p>\n<p>True Ohm technology and Callendar-van Dusen coefficient support allow the ASC-400 to work as a high-accuracy thermometer with a suitable calibrated RTD. Fast RTD simulation also makes the instrument suitable for pulsed transmitters and PLC inputs.<\/p>\n<p>Adding an <strong>APM CPF pressure module<\/strong> transforms the ASC-400 into a pressure calibrator, while the optional BARO module enables absolute pressure applications. Combining the ASC-400 with a JOFRA dry-block calibrator creates a flexible system for physical temperature calibration.<\/p>\n<p>Functions such as automatic switch testing, leak testing, scaling, online percentage error calculation, Auto Step and Auto Ramp simplify recurring calibration tasks.<\/p>\n<p>The graphical Connection Assistant, full-color display and numerical keypad help technicians configure complex measurement and source functions correctly and efficiently.<\/p>\n<p>At <strong>europascal<\/strong>, we provide professional solutions for process, electrical, pressure and temperature calibration and can assist you in selecting suitable AMETEK JOFRA and Crystal modules, sensors and accessories for the ASC-400.<\/p>\n<p>For professional calibration and metrological traceability of the AMETEK JOFRA ASC-400 and other process calibration equipment, visit the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal Calibration Service<\/a>.<\/p>\n<p>Manufacturer information about the <strong>AMETEK JOFRA ASC-400<\/strong> is available on the <a href=\"https:\/\/www.ametekcalibration.com\/products\/process\/multifunction-process-calibrators\/asc400-multifunction-process-calibrator\" target=\"_blank\" rel=\"noopener\">official AMETEK Calibration website<\/a>.<\/p>\n<p><a class=\"download-datasheet\" href=\"#\" data-pdf=\"https:\/\/europascal.de\/wp-content\/uploads\/2026\/07\/Ametek-ASC-400-Multifunction-Calibrator.pdf\"><span style=\"color: #0000ff;\"><strong><em>Download Datasheet<\/em><\/strong><\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The <strong>AMETEK JOFRA ASC-400<\/strong> is a versatile multifunction process calibrator for measuring and sourcing <strong>RTDs, thermocouples, mA, voltage, resistance, frequency and pulse signals<\/strong>. It supports <strong>16 RTD and 13 thermocouple types<\/strong>, 24 V loop power, True Ohm technology, isolated read-back and automated calibration functions. With optional APM CPF modules, the ASC-400 also becomes a powerful pressure calibrator.<\/p>\n","protected":false},"featured_media":6560,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_members_access_role":[],"_members_access_error":""},"product_brand":[92],"product_cat":[64,62],"product_tag":[4322,5020,4781,5021,5022,5023,5024,4201,3920,3921,4962,5025,5026,4395,4592,4811,4593,4761,5027,4752,5028,4738,3929,5029,5030,4742],"class_list":["post-6559","product","type-product","status-publish","has-post-thumbnail","product_brand-ametek","product_cat-process-multifunction-calibrators","product_cat-electrical","product_tag-4-bis-20-ma","product_tag-ametek-asc-400","product_tag-ametek-calibration","product_tag-ametek-jofra-asc-400","product_tag-apm-druckmodul","product_tag-asc-400","product_tag-asc-400-prozesskalibrator","product_tag-druckkalibrator","product_tag-europascal","product_tag-frequenzkalibrator","product_tag-hart-widerstand","product_tag-jofra","product_tag-jofra-asc-400","product_tag-kalibriertechnik","product_tag-ma-kalibrator","product_tag-multifunktions-prozesskalibrator","product_tag-prozesskalibrator","product_tag-prozessmesstechnik","product_tag-pt100-kalibrierung","product_tag-rtd-kalibrator","product_tag-signalkalibrator","product_tag-spannungskalibrator","product_tag-thermoelement-kalibrator","product_tag-transmitterkalibrierung","product_tag-true-ohm-measurement","product_tag-widerstandskalibrator","pa_bauart-handgeraet","pa_hart-kommunikation-nein","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","product-type-simple"],"_links":{"self":[{"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/product\/6559","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/media\/6560"}],"wp:attachment":[{"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/media?parent=6559"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/product_brand?post=6559"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/product_cat?post=6559"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/europascal.de\/en\/wp-json\/wp\/v2\/product_tag?post=6559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}