{"id":6471,"date":"2026-07-17T16:22:30","date_gmt":"2026-07-17T16:22:30","guid":{"rendered":"https:\/\/europascal.de\/product\/fluke-525b\/"},"modified":"2026-09-28T11:22:48","modified_gmt":"2026-09-28T11:22:48","slug":"fluke-525b","status":"publish","type":"product","link":"https:\/\/europascal.de\/en\/product\/fluke-525b\/","title":{"rendered":"Fluke Calibration 525B Versatile Temperature Pressure Calibrator"},"content":{"rendered":"<p dir=\"auto\"><strong>Fluke Calibration 525B<\/strong> is a versatile temperature and pressure calibrator designed for professional calibration laboratories, instrument workshops and automated calibration systems. It combines high-accuracy temperature simulation and measurement with DC voltage and current sourcing, resistance functions and optional pressure measurement using external Fluke pressure modules.<\/p>\n<p dir=\"auto\">The 525B is particularly well suited for laboratories with a large temperature calibration workload. It can source and measure a comprehensive range of RTDs and thermocouples and supports direct entry and storage of ITS-90 coefficients for precision platinum resistance thermometers.<\/p>\n<p dir=\"auto\">For electrical and process instrumentation, the calibrator provides DC voltage output from <strong>0 to 100 V<\/strong> and DC current output from <strong>0 to 100 mA<\/strong>. Resistance can be sourced from <strong>0 to 4,000 \u03a9<\/strong>.<\/p>\n<p dir=\"auto\">Pressure measurement capability is added using compatible external Fluke pressure modules. Depending on the selected module, pressure ranges from very low differential pressures to <strong>10,000 psi (69 MPa \/ approximately 690 bar)<\/strong> can be covered.<\/p>\n<p dir=\"auto\">Standard <strong>RS-232 and IEEE-488 (GPIB)<\/strong> interfaces enable the Fluke Calibration 525B to be integrated into automated calibration systems. The instrument is also compatible with Fluke Calibration MET\/CAL software for automated calibration procedures and documentation.<\/p>\n<p dir=\"auto\">At <strong>europascal<\/strong>, we provide professional calibration solutions for temperature, pressure and electrical measurement equipment. We can also support existing Fluke Calibration 525B installations and help identify suitable current solutions for replacement or modernization.<\/p>\n<p dir=\"auto\">For professional calibration and metrological traceability of process calibrators, temperature measuring equipment and electrical measuring instruments, use the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal Calibration Service<\/a>.<\/p>\n<h2 dir=\"auto\">Your Benefits at a Glance<\/h2>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">Professional temperature and pressure calibrator<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Thermocouple source and measurement<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">RTD source and measurement<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">SPRT measurement<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Direct storage of ITS-90 coefficients<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">YSI 400 thermistor support<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Ni 120 support<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Cu 10 support<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">DC voltage output from 0 to 100 V<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">DC current output from 0 to 100 mA<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Resistance source from 0 to 4,000 \u03a9<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Resistance measurement from 0 to 4,000 \u03a9<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">RTD source uncertainty down to 0.03 \u00b0C<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">RTD measurement performance down to 0.015 \u00b0C for Pt100<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">SPRT measurement performance down to 0.02 \u00b0C<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Internal and external cold junction compensation<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Optional pressure measurement<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Compatible with Fluke 700 and 750P Series pressure modules<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Pressure measurement up to 10,000 psi with suitable modules<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Eight programmable setpoints<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Programmable dwell times<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">RS-232 interface<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">IEEE-488 \/ GPIB interface<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">MET\/CAL automation support<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Compact benchtop design<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Ideal for calibration laboratories<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Ideal for instrument workshops<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"auto\">Temperature Calibration for Professional Laboratories<\/h2>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B<\/strong> was designed with a strong focus on temperature calibration.<\/p>\n<p dir=\"auto\">It can simulate and measure a broad range of temperature sensors used in laboratories and industrial process instrumentation.<\/p>\n<p dir=\"auto\">Supported sensor technologies include:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">Thermocouples<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Platinum resistance thermometers<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">RTDs<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">SPRTs<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Nickel resistance sensors<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Copper resistance sensors<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">YSI 400 thermistors<\/p>\n<\/li>\n<\/ul>\n<p dir=\"auto\">This broad sensor support allows the 525B to replace several individual temperature simulation and measurement devices in a calibration laboratory.<\/p>\n<h2 dir=\"auto\">Thermocouple Source and Measurement<\/h2>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B<\/strong> supports the following thermocouple types:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">B<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">C<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">E<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">J<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">K<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">L<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">N<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">R<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">S<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">T<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">U<\/p>\n<\/li>\n<\/ul>\n<p dir=\"auto\">The calibrator can both source and measure thermocouple signals.<\/p>\n<p dir=\"auto\">This enables the calibration of a wide range of thermocouple-based equipment, including:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">Temperature indicators<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Data loggers<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Temperature transmitters<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Process controllers<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Recorders<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Field calibrators<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Temperature measurement systems<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"auto\">Cold Junction Compensation<\/h2>\n<p dir=\"auto\">Accurate thermocouple calibration requires proper consideration of the reference junction temperature.<\/p>\n<p dir=\"auto\">The 525B provides selectable:<\/p>\n<p dir=\"auto\"><strong>Internal Cold Junction Compensation<\/strong><\/p>\n<p dir=\"auto\">and:<\/p>\n<p dir=\"auto\"><strong>External Cold Junction Compensation<\/strong><\/p>\n<p dir=\"auto\">External CJC capability is particularly useful when remote reference junctions or specialized thermocouple calibration arrangements are used.<\/p>\n<p dir=\"auto\">This flexibility enables the calibrator to support both routine and demanding thermocouple calibration procedures.<\/p>\n<h2 dir=\"auto\">RTD Source and Measurement<\/h2>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B<\/strong> provides extensive support for resistance temperature detectors.<\/p>\n<p dir=\"auto\">RTD simulation enables temperature indicators and transmitters to be calibrated without generating the corresponding physical temperature.<\/p>\n<p dir=\"auto\">The calibrator produces the resistance that the selected RTD would have at the required temperature.<\/p>\n<p dir=\"auto\">Fluke specifies RTD source uncertainties down to:<\/p>\n<p dir=\"auto\"><strong>0.03 \u00b0C<\/strong><\/p>\n<p dir=\"auto\">depending on sensor type and operating conditions.<\/p>\n<p dir=\"auto\">This makes the 525B particularly useful for precision temperature instrumentation.<\/p>\n<h2 dir=\"auto\">Pt100 Calibration<\/h2>\n<p dir=\"auto\">Pt100 resistance thermometers are among the most common industrial temperature sensors.<\/p>\n<p dir=\"auto\">The 525B supports several platinum resistance thermometer characteristics, including common industrial Pt100 curves.<\/p>\n<p dir=\"auto\">For Pt100 measurement, Fluke specifies best one-year performance down to approximately:<\/p>\n<p dir=\"auto\"><strong>0.015 \u00b0C<\/strong><\/p>\n<p dir=\"auto\">under the applicable conditions.<\/p>\n<p dir=\"auto\">This allows the 525B to serve as both a simulator and a precision measuring instrument for many RTD calibration applications.<\/p>\n<h2 dir=\"auto\">SPRT Measurement<\/h2>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B<\/strong> can measure 25.5 \u03a9 Standard Platinum Resistance Thermometers.<\/p>\n<p dir=\"auto\">The specified SPRT measurement range extends from approximately:<\/p>\n<p dir=\"auto\"><strong>\u2212200 \u00b0C to +660 \u00b0C<\/strong><\/p>\n<p dir=\"auto\">with best one-year measurement performance down to:<\/p>\n<p dir=\"auto\"><strong>0.02 \u00b0C<\/strong><\/p>\n<p dir=\"auto\">This capability makes the 525B particularly valuable in temperature calibration laboratories using precision platinum resistance thermometers.<\/p>\n<h2 dir=\"auto\">ITS-90 Coefficients<\/h2>\n<p dir=\"auto\">One of the important temperature metrology features of the <strong>Fluke Calibration 525B<\/strong> is direct support for ITS-90 coefficients.<\/p>\n<p dir=\"auto\">Individual coefficients for characterized resistance thermometers can be entered and stored directly in the calibrator.<\/p>\n<p dir=\"auto\">This allows the 525B to calculate temperature according to the characteristics of the individual thermometer rather than relying exclusively on a generic sensor curve.<\/p>\n<p dir=\"auto\">This is particularly useful when working with calibrated SPRTs and precision PRTs.<\/p>\n<h2 dir=\"auto\">Additional Resistance Thermometers<\/h2>\n<p dir=\"auto\">In addition to platinum resistance thermometers, the 525B supports other temperature sensor types.<\/p>\n<p dir=\"auto\">These include:<\/p>\n<p dir=\"auto\"><strong>Ni 120<\/strong><\/p>\n<p dir=\"auto\">with a specified measurement range of approximately:<\/p>\n<p dir=\"auto\"><strong>\u221280 \u00b0C to +100 \u00b0C<\/strong><\/p>\n<p dir=\"auto\">and:<\/p>\n<p dir=\"auto\"><strong>Cu 10<\/strong><\/p>\n<p dir=\"auto\">with a specified range of approximately:<\/p>\n<p dir=\"auto\"><strong>\u2212100 \u00b0C to +260 \u00b0C<\/strong><\/p>\n<p dir=\"auto\">The calibrator also supports:<\/p>\n<p dir=\"auto\"><strong>YSI 400 thermistors<\/strong><\/p>\n<p dir=\"auto\">for applications within their applicable temperature range.<\/p>\n<h2 dir=\"auto\">Resistance Source up to 4,000 \u03a9<\/h2>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B<\/strong> can source resistance from:<\/p>\n<p dir=\"auto\"><strong>0 to 4,000 \u03a9<\/strong><\/p>\n<p dir=\"auto\">This function is important for temperature simulation but can also be used for calibration of suitable resistance measuring equipment.<\/p>\n<p dir=\"auto\">Fluke specifies best one-year source performance down to:<\/p>\n<p dir=\"auto\"><strong>0.001 \u03a9<\/strong><\/p>\n<p dir=\"auto\">depending on the selected resistance range and test conditions.<\/p>\n<h2 dir=\"auto\">Resistance Measurement<\/h2>\n<p dir=\"auto\">The 525B can also measure resistance up to:<\/p>\n<p dir=\"auto\"><strong>4,000 \u03a9<\/strong><\/p>\n<p dir=\"auto\">This enables direct measurement of RTDs and other resistive devices.<\/p>\n<p dir=\"auto\">Fluke specifies best one-year resistance measurement performance down to approximately:<\/p>\n<p dir=\"auto\"><strong>0.02 \u03a9<\/strong><\/p>\n<p dir=\"auto\">for the applicable range.<\/p>\n<p dir=\"auto\">The combination of resistance source and measurement capability significantly increases the versatility of the calibrator.<\/p>\n<h2 dir=\"auto\">DC Voltage Output up to 100 V<\/h2>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B<\/strong> provides DC voltage output from:<\/p>\n<p dir=\"auto\"><strong>0 to 100 V<\/strong><\/p>\n<p dir=\"auto\">with a maximum specified load current of 1 mA.<\/p>\n<p dir=\"auto\">The best one-year voltage source specification reaches approximately:<\/p>\n<p dir=\"auto\"><strong>25 ppm of setting<\/strong><\/p>\n<p dir=\"auto\">for the applicable range.<\/p>\n<p dir=\"auto\">This voltage capability extends the 525B beyond temperature calibration.<\/p>\n<p dir=\"auto\">Typical applications include calibration of:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">Data loggers<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Recorders<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Process indicators<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Multimeters<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Industrial measurement systems<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Process calibrators<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"auto\">DC Current Output up to 100 mA<\/h2>\n<p dir=\"auto\">The 525B provides DC current output from:<\/p>\n<p dir=\"auto\"><strong>0 to 100 mA<\/strong><\/p>\n<p dir=\"auto\">with a compliance voltage of up to:<\/p>\n<p dir=\"auto\"><strong>10 V<\/strong><\/p>\n<p dir=\"auto\">The best one-year current source specification reaches approximately:<\/p>\n<p dir=\"auto\"><strong>100 ppm of setting<\/strong><\/p>\n<p dir=\"auto\">for the applicable range.<\/p>\n<p dir=\"auto\">This current capability enables calibration and testing of many process measurement instruments.<\/p>\n<h2 dir=\"auto\">Pressure Measurement with External Modules<\/h2>\n<p dir=\"auto\">Pressure measurement capability can be added to the <strong>Fluke Calibration 525B<\/strong> using external pressure modules.<\/p>\n<p dir=\"auto\">Compatible modules include Fluke pressure module families such as:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">Fluke 700 Series<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Fluke 750P Series<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">525A-P Series<\/p>\n<\/li>\n<\/ul>\n<p dir=\"auto\">The pressure module connects directly to the dedicated front-panel connector.<\/p>\n<p dir=\"auto\">The 525B automatically detects the connected module type and range.<\/p>\n<p dir=\"auto\">This makes it possible to expand a primarily temperature-focused calibrator into a versatile temperature, electrical and pressure calibration workstation.<\/p>\n<h2 dir=\"auto\">Pressure Ranges up to 10,000 psi<\/h2>\n<p dir=\"auto\">With a suitable pressure module, the <strong>Fluke Calibration 525B<\/strong> can measure pressures covering common ranges from very low differential pressure to approximately:<\/p>\n<p dir=\"auto\"><strong>10,000 psi<\/strong><\/p>\n<p dir=\"auto\">or:<\/p>\n<p dir=\"auto\"><strong>69 MPa<\/strong><\/p>\n<p dir=\"auto\">which corresponds to approximately:<\/p>\n<p dir=\"auto\"><strong>690 bar<\/strong><\/p>\n<p dir=\"auto\">The actual pressure measurement range and accuracy depend on the connected pressure module.<\/p>\n<p dir=\"auto\">The 525B acts as the display and processing instrument while the external module provides the pressure sensor and associated pressure measurement specification.<\/p>\n<h2 dir=\"auto\">Multiple Pressure Units<\/h2>\n<p dir=\"auto\">Pressure values can be displayed in different engineering units.<\/p>\n<p dir=\"auto\">The desired pressure unit can be selected directly from the front panel or through remote communication.<\/p>\n<p dir=\"auto\">Available units include common SI and non-SI pressure units such as:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">Pa and multiples<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">bar<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">mbar<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">psi<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">inH\u2082O<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">cmH\u2082O<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">mmHg<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">inHg<\/p>\n<\/li>\n<\/ul>\n<p dir=\"auto\">This simplifies calibration when devices under test use different pressure units.<\/p>\n<h2 dir=\"auto\">Eight Programmable Setpoints<\/h2>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B<\/strong> provides eight user-programmable setpoints.<\/p>\n<p dir=\"auto\">Frequently used calibration values can therefore be stored and recalled quickly.<\/p>\n<p dir=\"auto\">This is particularly useful for routine checks such as:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">Zero<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Span<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Linearity<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Intermediate calibration points<\/p>\n<\/li>\n<\/ul>\n<p dir=\"auto\">Instead of entering the same values repeatedly, the operator can recall predefined calibration points.<\/p>\n<h2 dir=\"auto\">Programmable Dwell Times<\/h2>\n<p dir=\"auto\">Programmable dwell times further improve automated calibration workflows.<\/p>\n<p dir=\"auto\">The 525B can remain at a selected setpoint for a defined period before continuing with the calibration procedure.<\/p>\n<p dir=\"auto\">This allows the device under test sufficient time to stabilize.<\/p>\n<p dir=\"auto\">Programmable dwell functionality is useful for both automated calibration and troubleshooting.<\/p>\n<h2 dir=\"auto\">Compact Benchtop Instrument<\/h2>\n<p dir=\"auto\">Despite its broad functionality, the <strong>Fluke Calibration 525B<\/strong> is designed as a compact benchtop calibrator.<\/p>\n<p dir=\"auto\">Its dimensions are approximately:<\/p>\n<p dir=\"auto\"><strong>13.1 \u00d7 31.3 \u00d7 47.3 cm<\/strong><\/p>\n<p dir=\"auto\">and its weight is approximately:<\/p>\n<p dir=\"auto\"><strong>4 kg<\/strong><\/p>\n<p dir=\"auto\">This makes the calibrator suitable for both permanent laboratory installation and flexible use within an instrument workshop.<\/p>\n<p dir=\"auto\">An optional rack-mount kit is also available for integration into calibration systems.<\/p>\n<h2 dir=\"auto\">Five-Way Binding Posts<\/h2>\n<p dir=\"auto\">The electrical connections use convenient five-way binding posts.<\/p>\n<p dir=\"auto\">These support several common connection methods, including:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">Banana plugs<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Screw terminals<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Spade lugs<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Wrapped wires<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Wire pass-through connections<\/p>\n<\/li>\n<\/ul>\n<p dir=\"auto\">This provides flexibility when connecting different types of devices under test.<\/p>\n<h2 dir=\"auto\">RS-232 and IEEE-488 Interfaces<\/h2>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B<\/strong> provides standard interfaces for automated operation.<\/p>\n<p dir=\"auto\">These include:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">RS-232<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">IEEE-488 \/ GPIB<\/p>\n<\/li>\n<\/ul>\n<p dir=\"auto\">The interfaces enable remote control from calibration software or custom automation systems.<\/p>\n<p dir=\"auto\">Commands can be used to select functions, define output values and execute automated calibration procedures.<\/p>\n<h2 dir=\"auto\">MET\/CAL Automation<\/h2>\n<p dir=\"auto\">The 525B can be integrated with Fluke Calibration <strong>MET\/CAL<\/strong> calibration software.<\/p>\n<p dir=\"auto\">MET\/CAL enables automated calibration procedures and supports calibration documentation and reporting.<\/p>\n<p dir=\"auto\">This is particularly valuable for laboratories that need repeatable calibration procedures and structured measurement documentation.<\/p>\n<p dir=\"auto\">Automated operation can help reduce:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">Manual data entry<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Operator errors<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Calibration time<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Documentation effort<\/p>\n<\/li>\n<\/ul>\n<p dir=\"auto\">while improving consistency between calibrations.<\/p>\n<h2 dir=\"auto\">Calibration Laboratory Applications<\/h2>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B<\/strong> is particularly suitable for calibration laboratories with a large temperature workload.<\/p>\n<p dir=\"auto\">A single instrument can provide reference signals for many different devices.<\/p>\n<p dir=\"auto\">Typical laboratory applications include:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">RTD indicator calibration<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Thermocouple indicator calibration<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Temperature transmitter calibration<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Data logger calibration<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Recorder calibration<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Process calibrator calibration<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Pressure indicator calibration with external modules<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">DC voltage instrument calibration<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">DC current instrument calibration<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"auto\">Instrument Workshop Applications<\/h2>\n<p dir=\"auto\">The 525B is also well suited for industrial instrument workshops.<\/p>\n<p dir=\"auto\">Maintenance technicians often need to calibrate and troubleshoot a broad range of process instrumentation.<\/p>\n<p dir=\"auto\">The combination of temperature simulation, electrical sourcing and pressure measurement allows one bench instrument to support many different maintenance tasks.<\/p>\n<p dir=\"auto\">Typical devices include:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">Process transmitters<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Temperature transmitters<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Field calibrators<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">P\/I converters<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Data loggers<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Temperature probes<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Industrial indicators<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"auto\">Technical Highlights<\/h2>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B<\/strong> combines temperature, electrical and pressure calibration capabilities within a compact benchtop platform:<\/p>\n<ul data-spread=\"false\">\n<li>\n<p dir=\"auto\">Temperature \/ Pressure Calibrator<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Thermocouple source and measure<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Thermocouple types B, C, E, J, K, L, N, R, S, T and U<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Internal and external cold junction compensation<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">RTD source and measure<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">SPRT measurement<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">ITS-90 coefficient storage<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Pt100 support<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Ni 120 support<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Cu 10 support<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">YSI 400 thermistor support<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Resistance source to 4,000 \u03a9<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Resistance measurement to 4,000 \u03a9<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">DC voltage source to 100 V<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">DC current source to 100 mA<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">External pressure module support<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Pressure measurement to 10,000 psi with suitable modules<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Eight programmable setpoints<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">Programmable dwell times<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">RS-232<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">IEEE-488 \/ GPIB<\/p>\n<\/li>\n<li>\n<p dir=\"auto\">MET\/CAL automation capability<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"auto\">Technical Specifications<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>Fluke Calibration 525B<\/th>\n<\/tr>\n<tr>\n<td>Manufacturer<\/td>\n<td>Fluke Calibration<\/td>\n<\/tr>\n<tr>\n<td>Model<\/td>\n<td>525B<\/td>\n<\/tr>\n<tr>\n<td>Device type<\/td>\n<td>Temperature \/ Pressure Calibrator<\/td>\n<\/tr>\n<tr>\n<td>DC voltage source<\/td>\n<td>0 to 100 V<\/td>\n<\/tr>\n<tr>\n<td>Best 1-year voltage specification<\/td>\n<td>25 ppm of setting<\/td>\n<\/tr>\n<tr>\n<td>DC current source<\/td>\n<td>0 to 100 mA<\/td>\n<\/tr>\n<tr>\n<td>Current compliance<\/td>\n<td>10 V<\/td>\n<\/tr>\n<tr>\n<td>Best 1-year current specification<\/td>\n<td>100 ppm of setting<\/td>\n<\/tr>\n<tr>\n<td>Resistance source<\/td>\n<td>0 to 4,000 \u03a9<\/td>\n<\/tr>\n<tr>\n<td>Best resistance source specification<\/td>\n<td>0.001 \u03a9<\/td>\n<\/tr>\n<tr>\n<td>Resistance measurement<\/td>\n<td>0 to 4,000 \u03a9<\/td>\n<\/tr>\n<tr>\n<td>Best resistance measurement specification<\/td>\n<td>0.02 \u03a9<\/td>\n<\/tr>\n<tr>\n<td>Thermocouple types<\/td>\n<td>B, C, E, J, K, L, N, R, S, T, U<\/td>\n<\/tr>\n<tr>\n<td>Best TC specification<\/td>\n<td>Down to 0.12 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Pt100 measurement<\/td>\n<td>\u2212200 \u00b0C to +660 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Best Pt100 specification<\/td>\n<td>0.015 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>SPRT 25.5 \u03a9 measurement<\/td>\n<td>\u2212200 \u00b0C to +660 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Best SPRT specification<\/td>\n<td>0.02 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Ni 120<\/td>\n<td>\u221280 \u00b0C to +100 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Cu 10<\/td>\n<td>\u2212100 \u00b0C to +260 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>YSI 400<\/td>\n<td>15 \u00b0C to 50 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Pressure measurement<\/td>\n<td>External pressure modules<\/td>\n<\/tr>\n<tr>\n<td>Maximum pressure<\/td>\n<td>Up to 10,000 psi \/ 69 MPa with suitable module<\/td>\n<\/tr>\n<tr>\n<td>Interfaces<\/td>\n<td>RS-232 and IEEE-488 \/ GPIB<\/td>\n<\/tr>\n<tr>\n<td>Typical settling time<\/td>\n<td>Less than 5 seconds<\/td>\n<\/tr>\n<tr>\n<td>Operating temperature<\/td>\n<td>0 \u00b0C to 50 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Calibration temperature range<\/td>\n<td>15 \u00b0C to 35 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Storage temperature<\/td>\n<td>\u221220 \u00b0C to +70 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>Approx. 4 kg<\/td>\n<\/tr>\n<tr>\n<td>Dimensions<\/td>\n<td>Approx. 13.1 \u00d7 31.3 \u00d7 47.3 cm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 dir=\"auto\">Why Choose the Fluke Calibration 525B?<\/h2>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B<\/strong> combines a strong temperature calibration capability with useful electrical sourcing and optional pressure measurement.<\/p>\n<p dir=\"auto\">Its ability to source and measure thermocouples and RTDs makes it particularly attractive for laboratories with a large temperature workload.<\/p>\n<p dir=\"auto\">Direct support for ITS-90 coefficients further extends the instrument into precision platinum resistance thermometer applications.<\/p>\n<p dir=\"auto\">DC voltage output up to <strong>100 V<\/strong> and DC current output up to <strong>100 mA<\/strong> allow the same instrument to calibrate a variety of electrical and process measuring devices.<\/p>\n<p dir=\"auto\">External Fluke pressure modules extend the system into pressure measurement, with suitable modules covering pressures up to <strong>10,000 psi \/ 69 MPa<\/strong>.<\/p>\n<p dir=\"auto\">Eight programmable setpoints and programmable dwell times simplify repetitive calibration procedures.<\/p>\n<p dir=\"auto\">RS-232 and IEEE-488 interfaces allow the calibrator to be integrated into automated laboratory systems, while compatibility with MET\/CAL supports automated calibration and documentation.<\/p>\n<p dir=\"auto\">The <strong>Fluke Calibration 525B is discontinued<\/strong>. Fluke currently identifies the <strong>7526A Precision Process Calibrator<\/strong> as the recommended replacement. The 525B nevertheless remains relevant for laboratories that already operate the instrument or require information, service and calibration support for an existing system.<\/p>\n<p dir=\"auto\">At <strong>europascal<\/strong>, we can support existing Fluke Calibration 525B installations and assist with selecting an appropriate current calibration solution when replacement or modernization is required.<\/p>\n<p dir=\"auto\">For professional calibration and metrological traceability of temperature calibrators, process calibrators and electrical measuring equipment, use the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal Calibration Service<\/a>.<\/p>\n<p dir=\"auto\"><a href=\"https:\/\/europascal.de\/marke\/fluke-calibration\/\">Discover more Fluke Calibration products here.<\/a><\/p>\n<p dir=\"auto\">Manufacturer information about the <strong>Fluke Calibration 525B<\/strong> is available on the <a href=\"https:\/\/www.fluke.com\/en\/product\/calibration-tools\/electrical-calibration\/electrical-calibrators\/525b\" target=\"_blank\" rel=\"noopener\">official Fluke Calibration 525B product page<\/a>.<\/p>\n<p><a class=\"download-datasheet\" href=\"#\" data-pdf=\"https:\/\/europascal.de\/wp-content\/uploads\/2026\/07\/Fluke-525B-Temperature-Pressure-Calibrator.pdf\"> <span style=\"color: #0000ff;\"><strong><em>Download Datasheet<\/em><\/strong><\/span> <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p data-pm-slice=\"1 1 []\">The <strong>Fluke Calibration 525B<\/strong> is a versatile temperature and pressure calibrator for professional calibration laboratories and instrument workshops. It sources and measures thermocouples and RTDs, supports ITS-90 coefficients, provides <strong>0 to 100 V DC<\/strong>, <strong>0 to 100 mA DC<\/strong> and resistance up to <strong>4,000 \u03a9<\/strong>, and measures pressure up to <strong>10,000 psi<\/strong> using compatible external Fluke pressure modules.<\/p>\n","protected":false},"featured_media":4759,"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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