{"id":7228,"date":"2026-07-17T14:35:10","date_gmt":"2026-07-17T14:35:10","guid":{"rendered":"https:\/\/europascal.de\/product\/europascal-bh4-300b\/"},"modified":"2026-10-21T11:20:56","modified_gmt":"2026-10-21T11:20:56","slug":"europascal-bh4-300b","status":"publish","type":"product","link":"https:\/\/europascal.de\/en\/product\/europascal-bh4-300b\/","title":{"rendered":"europascal BH4-300B Precise Automatic Deadweight Tester"},"content":{"rendered":"<p>The <strong>europascal BH4-300B Automatic Deadweight Tester<\/strong> is a high-performance hydraulic pressure standard designed for precise and efficient calibration from <strong>5 to 300 bar<\/strong>. With a standard accuracy of <strong>0.01 %<\/strong> and enhanced performance of <strong>up to 0.006 % as an option<\/strong>, the BH4-300B combines the proven physical measurement principle of a piston gauge with advanced automatic functions for professional calibration laboratories.<\/p>\n<p>The instrument is designed as a <strong>single-piston hydraulic deadweight tester<\/strong> and is identified by the manufacturer as <strong>BH4-300B SP<\/strong>. Its measuring range extends from <strong>5 to 300 bar<\/strong>, corresponding to <strong>500 to 30,000 kPa<\/strong> and <strong>50 to 4,000 psi<\/strong>.<\/p>\n<p>The BH4-300B incorporates a <strong>tungsten carbide piston<\/strong> and a <strong>treated steel cylinder<\/strong>. The hydraulic system operates with oil, while calibrated masses generate the precisely defined force required for pressure generation.<\/p>\n<p>Unlike a conventional manually operated deadweight tester, the BH4 platform integrates motorized operation, dynamic piston position visualization and automatic pressure calculation. This combination reduces operator workload and simplifies repetitive calibration procedures while retaining the physical measurement principle of a precision pressure balance.<\/p>\n<p>The <strong>europascal BH4-300B<\/strong> is particularly suitable for professional calibration laboratories, pressure instrument manufacturers, industrial quality assurance departments and service organizations.<\/p>\n<p>europascal provides professional support for pressure calibration equipment, system configuration, maintenance and calibration. The <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal calibration service<\/a> provides professional calibration solutions for deadweight testers, pressure balances, pressure gauges, pressure sensors, transmitters and other pressure measuring equipment.<\/p>\n<h2>Your Benefits at a Glance<\/h2>\n<p>The <strong>europascal BH4-300B Automatic Deadweight Tester<\/strong> combines high metrological performance with automatic operation.<\/p>\n<p>Key benefits include:<\/p>\n<ul>\n<li>Automatic hydraulic deadweight tester<\/li>\n<li>Measuring range from 5 to 300 bar<\/li>\n<li>Measuring range from 500 to 30,000 kPa<\/li>\n<li>Measuring range from 50 to 4,000 psi<\/li>\n<li>Maximum pressure of 300 bar \/ 30 MPa<\/li>\n<li>Standard accuracy of 0.01 %<\/li>\n<li>Enhanced accuracy up to 0.006 % as an option<\/li>\n<li>Single-piston configuration<\/li>\n<li>One precision piston-cylinder system<\/li>\n<li>Tungsten carbide piston<\/li>\n<li>Treated steel cylinder<\/li>\n<li>Hydraulic operation with oil<\/li>\n<li>Motorized mass rotation<\/li>\n<li>Dynamic piston position visualization<\/li>\n<li>Automatic pressure calculation and display<\/li>\n<li>Stainless steel calibration masses<\/li>\n<li>Standard or customer-specific gravity<\/li>\n<li>Professional calibration and service from europascal<\/li>\n<\/ul>\n<h2>Measuring Range from 5 to 300 bar<\/h2>\n<p>The <strong>europascal BH4-300B<\/strong> covers a hydraulic measuring range from:<\/p>\n<p><strong>5 to 300 bar<\/strong><\/p>\n<p>This corresponds to:<\/p>\n<p><strong>500 to 30,000 kPa<\/strong><\/p>\n<p>or:<\/p>\n<p><strong>0.5 to 30 MPa<\/strong><\/p>\n<p>The manufacturer specifies the imperial range as:<\/p>\n<p><strong>50 to 4,000 psi<\/strong><\/p>\n<p>The maximum pressure is:<\/p>\n<p><strong>300 bar \/ 30 MPa<\/strong><\/p>\n<p>This pressure range makes the BH4-300B particularly suitable for calibration of hydraulic pressure instruments used in industrial, laboratory and quality assurance applications.<\/p>\n<h2>Accuracy of 0.01 %<\/h2>\n<p>The standard accuracy of the <strong>europascal BH4-300B<\/strong> is:<\/p>\n<p><strong>0.01 %<\/strong><\/p>\n<p>For applications with particularly demanding metrological requirements, enhanced performance is available:<\/p>\n<p><strong>up to 0.006 % as an option<\/strong><\/p>\n<p>The complete measurement uncertainty of a calibration additionally depends on the relevant influence quantities of the pressure balance and measurement setup.<\/p>\n<p>These can include:<\/p>\n<ul>\n<li>Calibration of the mass set<\/li>\n<li>Effective piston area<\/li>\n<li>Pressure coefficient<\/li>\n<li>Local gravitational acceleration<\/li>\n<li>Air buoyancy<\/li>\n<li>Piston-cylinder temperature<\/li>\n<li>Pressure deformation<\/li>\n<li>Hydraulic fluid properties<\/li>\n<li>Hydrostatic head difference<\/li>\n<li>Repeatability<\/li>\n<li>Resolution of the device under test<\/li>\n<li>Environmental conditions<\/li>\n<\/ul>\n<p>These influence quantities should be evaluated according to the applicable calibration procedure and measurement uncertainty model.<\/p>\n<h2>Physical Piston Gauge Measurement Principle<\/h2>\n<p>The <strong>europascal BH4-300B Automatic Deadweight Tester<\/strong> operates according to the fundamental physical principle of a piston gauge.<\/p>\n<p>The basic relationship is:<\/p>\n<p><strong>p = F \/ A<\/strong><\/p>\n<p>where:<\/p>\n<p><strong>p<\/strong> = generated pressure<br \/>\n<strong>F<\/strong> = force acting on the piston<br \/>\n<strong>A<\/strong> = effective piston area<\/p>\n<p>The gravitational force generated by the calibration masses is primarily determined by:<\/p>\n<p><strong>F = m \u00d7 g<\/strong><\/p>\n<p>where:<\/p>\n<p><strong>m<\/strong> = applied mass<br \/>\n<strong>g<\/strong> = gravitational acceleration<\/p>\n<p>The simplified relationship is therefore:<\/p>\n<p><strong>p = (m \u00d7 g) \/ A<\/strong><\/p>\n<p>For precision calibration, additional corrections can be considered for quantities such as local gravity, air buoyancy, piston-cylinder temperature, pressure deformation and hydrostatic head.<\/p>\n<p>The BH4-300B combines this physical pressure generation principle with electronic calculation and automatic operator assistance.<\/p>\n<h2>Single-Piston Configuration<\/h2>\n<p>The manufacturer identifies the model as:<\/p>\n<p><strong>BH4-300B SP<\/strong><\/p>\n<p>The abbreviation <strong>SP<\/strong> denotes the single-piston configuration.<\/p>\n<p>The instrument therefore incorporates:<\/p>\n<p><strong>one precision piston-cylinder system<\/strong><\/p>\n<p>to cover its complete specified measuring range from 5 to 300 bar.<\/p>\n<p>This provides straightforward operation without requiring the operator to switch between separate low-pressure and high-pressure piston systems.<\/p>\n<h2>Tungsten Carbide Piston<\/h2>\n<p>The <strong>europascal BH4-300B<\/strong> uses a:<\/p>\n<p><strong>tungsten carbide piston<\/strong><\/p>\n<p>Tungsten carbide provides high hardness, wear resistance and excellent dimensional stability.<\/p>\n<p>These properties make it particularly suitable for precision piston-cylinder assemblies where stable geometry is essential for maintaining a well-defined effective piston area.<\/p>\n<h2>Treated Steel Cylinder<\/h2>\n<p>The cylinder of the BH4-300B is manufactured from:<\/p>\n<p><strong>treated steel<\/strong><\/p>\n<p>Together with the tungsten carbide piston, the treated steel cylinder forms the precision piston-cylinder assembly responsible for generating the reference pressure.<\/p>\n<h2>Automatic BH4 Platform<\/h2>\n<p>The BH4 series combines the physical reference principle of a deadweight tester with automatic functions that simplify calibration procedures.<\/p>\n<p>The system provides:<\/p>\n<ul>\n<li>Motorized mass rotation<\/li>\n<li>Dynamic piston position visualization<\/li>\n<li>Automatic pressure calculation<\/li>\n<li>Automatic display of generated pressure<\/li>\n<li>Different pressure units<\/li>\n<li>Operator assistance<\/li>\n<li>Digital support for calibration procedures<\/li>\n<\/ul>\n<p>The reference pressure itself continues to be generated physically by the calibrated masses and piston-cylinder system.<\/p>\n<h2>Motorized Mass Rotation<\/h2>\n<p>Rotation of the piston helps minimize friction between the piston and cylinder and supports free movement of the precision piston.<\/p>\n<p>The BH4 platform integrates electric motorization of the mass system.<\/p>\n<p>This eliminates the need for continuous manual rotation and reduces operator workload during repetitive calibration procedures.<\/p>\n<h2>Dynamic Piston Position Visualization<\/h2>\n<p>Correct piston position is essential for reliable operation of a pressure balance.<\/p>\n<p>The BH4 system provides:<\/p>\n<p><strong>dynamic piston position visualization<\/strong><\/p>\n<p>The operator can monitor the piston position during calibration and determine whether the piston is operating within its correct working range.<\/p>\n<p>This provides greater convenience compared with purely manual deadweight tester operation.<\/p>\n<h2>Automatic Pressure Calculation and Display<\/h2>\n<p>The integrated calculator assists with determining the reference pressure generated by the applied calibration masses and piston-cylinder system.<\/p>\n<p>Relevant parameters can include:<\/p>\n<ul>\n<li>Applied calibration masses<\/li>\n<li>Effective piston area<\/li>\n<li>Gravitational acceleration<\/li>\n<li>Temperature<\/li>\n<li>Atmospheric pressure<\/li>\n<li>Relevant correction quantities<\/li>\n<\/ul>\n<p>The calculated reference pressure can be displayed directly to the operator.<\/p>\n<p>This reduces manual calculation effort and helps provide consistent calibration procedures.<\/p>\n<h2>Environmental Conditions<\/h2>\n<p>The manufacturer specifies reference calibration conditions of:<\/p>\n<p><strong>Temperature: 20 \u00b0C<\/strong><\/p>\n<p><strong>Atmospheric pressure: 1013.25 hPa<\/strong><\/p>\n<p><strong>Relative humidity: 50 %<\/strong><\/p>\n<p><strong>Gravitational acceleration: 9.80665 m\/s\u00b2<\/strong><\/p>\n<p>The specified operating temperature range for the BH4 platform is:<\/p>\n<p><strong>18 to 28 \u00b0C<\/strong><\/p>\n<p>Environmental quantities can influence the generated reference pressure and should therefore be considered when performing high-accuracy calibration.<\/p>\n<h2>Stainless Steel Calibration Masses<\/h2>\n<p>The BH4 series uses:<\/p>\n<p><strong>stainless steel calibration masses<\/strong><\/p>\n<p>The calibrated masses generate the force acting on the precision piston.<\/p>\n<p>Their values, together with the effective piston area and gravitational acceleration, form the fundamental basis for determining the reference pressure.<\/p>\n<p>The BH4-300B can be configured with mass sets marked according to the selected pressure unit.<\/p>\n<h2>Standard or Local Gravity<\/h2>\n<p>The gravitational force generated by the calibration masses depends directly on gravitational acceleration.<\/p>\n<p>The conventional standard value is:<\/p>\n<p><strong>g = 9.80665 m\/s\u00b2<\/strong><\/p>\n<p>Actual gravitational acceleration varies geographically.<\/p>\n<p>AREMECA therefore offers configuration according to standard gravity or a specified local gravity value.<\/p>\n<p>This adjustment is particularly important for precision pressure calibration because a relative change in gravitational acceleration directly affects the force generated by the mass set.<\/p>\n<h2>Hydraulic Operation with Oil<\/h2>\n<p>The <strong>europascal BH4-300B<\/strong> is a hydraulic deadweight tester operating with:<\/p>\n<p><strong>oil<\/strong><\/p>\n<p>Correct filling, cleanliness and venting of the hydraulic system are important for reliable pressure generation.<\/p>\n<p>Trapped gas can influence pressure generation and settling behavior, while contamination can affect the performance of precision hydraulic components.<\/p>\n<p>Compatibility between the hydraulic fluid, device under test and wetted components should always be checked before calibration.<\/p>\n<h2>Technical Highlights<\/h2>\n<p><strong>Model:<\/strong> europascal BH4-300B<\/p>\n<p><strong>Manufacturer reference:<\/strong> BH4-300B SP<\/p>\n<p><strong>Device type:<\/strong> Automatic Hydraulic Deadweight Tester<\/p>\n<p><strong>Product family:<\/strong> BH4 Automatic<\/p>\n<p><strong>Configuration:<\/strong> Single piston<\/p>\n<p><strong>Number of pistons:<\/strong> 1<\/p>\n<p><strong>Measuring range:<\/strong> 5 to 300 bar<\/p>\n<p><strong>Measuring range:<\/strong> 500 to 30,000 kPa<\/p>\n<p><strong>Measuring range:<\/strong> 0.5 to 30 MPa<\/p>\n<p><strong>Measuring range:<\/strong> 50 to 4,000 psi<\/p>\n<p><strong>Maximum pressure:<\/strong> 300 bar \/ 30 MPa<\/p>\n<p><strong>Standard accuracy:<\/strong> 0.01 %<\/p>\n<p><strong>Enhanced accuracy:<\/strong> Up to 0.006 % as an option<\/p>\n<p><strong>Piston material:<\/strong> Tungsten carbide<\/p>\n<p><strong>Cylinder material:<\/strong> Treated steel<\/p>\n<p><strong>Pressure medium:<\/strong> Oil<\/p>\n<p><strong>Instrument weight:<\/strong> Approx. 24 kg<\/p>\n<p><strong>Operating temperature:<\/strong> 18 to 28 \u00b0C<\/p>\n<p><strong>Standard gravity:<\/strong> 9.80665 m\/s\u00b2<\/p>\n<p><strong>Local gravity:<\/strong> Available<\/p>\n<p><strong>Motorized operation:<\/strong> Integrated<\/p>\n<p><strong>Piston position visualization:<\/strong> Integrated<\/p>\n<p><strong>Automatic pressure calculation:<\/strong> Integrated<\/p>\n<h2>Technical Data<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>europascal BH4-300B<\/th>\n<\/tr>\n<tr>\n<td>Manufacturer<\/td>\n<td>europascal Aremeca<\/td>\n<\/tr>\n<tr>\n<td>Model<\/td>\n<td>BH4-300B<\/td>\n<\/tr>\n<tr>\n<td>Manufacturer reference<\/td>\n<td>BH4-300B SP<\/td>\n<\/tr>\n<tr>\n<td>Device type<\/td>\n<td>Automatic Hydraulic Deadweight Tester<\/td>\n<\/tr>\n<tr>\n<td>Configuration<\/td>\n<td>Single piston<\/td>\n<\/tr>\n<tr>\n<td>Number of pistons<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>Measuring range<\/td>\n<td>5\u2013300 bar<\/td>\n<\/tr>\n<tr>\n<td>Measuring range<\/td>\n<td>500\u201330,000 kPa<\/td>\n<\/tr>\n<tr>\n<td>Measuring range<\/td>\n<td>0.5\u201330 MPa<\/td>\n<\/tr>\n<tr>\n<td>Measuring range<\/td>\n<td>50\u20134,000 psi<\/td>\n<\/tr>\n<tr>\n<td>Maximum pressure<\/td>\n<td>300 bar \/ 30 MPa<\/td>\n<\/tr>\n<tr>\n<td>Standard accuracy<\/td>\n<td>0.01 %<\/td>\n<\/tr>\n<tr>\n<td>Enhanced accuracy<\/td>\n<td>Up to 0.006 % optional<\/td>\n<\/tr>\n<tr>\n<td>Piston material<\/td>\n<td>Tungsten carbide<\/td>\n<\/tr>\n<tr>\n<td>Cylinder material<\/td>\n<td>Treated steel<\/td>\n<\/tr>\n<tr>\n<td>Pressure medium<\/td>\n<td>Oil<\/td>\n<\/tr>\n<tr>\n<td>Instrument weight<\/td>\n<td>Approx. 24 kg<\/td>\n<\/tr>\n<tr>\n<td>Operating temperature<\/td>\n<td>18\u201328 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Standard gravity<\/td>\n<td>9.80665 m\/s\u00b2<\/td>\n<\/tr>\n<tr>\n<td>Motorized mass rotation<\/td>\n<td>Integrated<\/td>\n<\/tr>\n<tr>\n<td>Piston position visualization<\/td>\n<td>Integrated<\/td>\n<\/tr>\n<tr>\n<td>Automatic pressure calculation<\/td>\n<td>Integrated<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Calibration Mass Sets<\/h2>\n<p>The BH4-300B can be supplied with calibration masses configured for different pressure units.<\/p>\n<p>The current manufacturer data sheet lists principal mass sets for:<\/p>\n<ul>\n<li>bar<\/li>\n<li>kg\/cm\u00b2<\/li>\n<li>psi<\/li>\n<\/ul>\n<p>The integrated calculator can convert pressure values into different units, providing flexibility when calibrating instruments with different engineering units.<\/p>\n<h2>Standard Scope of Delivery<\/h2>\n<p>According to the manufacturer, the BH4-300B is supplied with:<\/p>\n<ul>\n<li>Operating instructions<\/li>\n<li>AREMECA calibration certificate traceable to national standards<\/li>\n<li>Product data sheet<\/li>\n<li>0.5 liter of mineral oil<\/li>\n<li>G1\/2 outlet connector<\/li>\n<li>Required tools<\/li>\n<li>Transport case for the pressure generator<\/li>\n<\/ul>\n<p>Documentation is available in French and English.<\/p>\n<h2>Calibration Certificate Options<\/h2>\n<p>The BH4-300B is supplied with an AREMECA calibration certificate traceable to national standards.<\/p>\n<p>For applications requiring accredited calibration, an additional accredited certificate is available as an option.<\/p>\n<p>The manufacturer lists:<\/p>\n<p><strong>COFRAC or DAkkS\/DKD accredited calibration certificate<\/strong><\/p>\n<p>This allows the calibration configuration to be adapted to the quality and traceability requirements of the laboratory.<\/p>\n<h2>BH4-300B and Dual-Piston Applications<\/h2>\n<p>The BH4-300B SP uses one piston-cylinder system and covers its complete specified pressure range with a single piston.<\/p>\n<p>For applications requiring improved coverage at lower pressures, a dual-piston configuration can provide a dedicated low-pressure piston in addition to the high-pressure piston.<\/p>\n<p>The appropriate configuration should be selected according to the required pressure range, calibration points and measurement uncertainty requirements.<\/p>\n<h2>Typical Calibration Applications<\/h2>\n<p>The <strong>europascal BH4-300B Automatic Deadweight Tester<\/strong> is suitable for testing, adjustment and calibration of mechanical and electronic pressure measuring instruments, including:<\/p>\n<ul>\n<li>Precision pressure gauges<\/li>\n<li>Digital pressure gauges<\/li>\n<li>Pressure sensors<\/li>\n<li>Pressure transducers<\/li>\n<li>Pressure transmitters<\/li>\n<li>Pressure switches<\/li>\n<li>Hydraulic pressure indicators<\/li>\n<li>Reference pressure instruments<\/li>\n<li>Industrial pressure measuring systems<\/li>\n<\/ul>\n<p>Typical users include professional calibration laboratories, pressure instrument manufacturers, industrial quality assurance departments, research laboratories and calibration service organizations.<\/p>\n<h2>Calibration and Traceability<\/h2>\n<p>Regular calibration of a precision pressure balance is essential for maintaining reliable metrological performance.<\/p>\n<p>Important components and parameters include:<\/p>\n<ul>\n<li>Piston-cylinder assembly<\/li>\n<li>Effective piston area<\/li>\n<li>Calibration mass set<\/li>\n<li>Pressure coefficient<\/li>\n<li>Temperature behavior<\/li>\n<li>Gravity value<\/li>\n<li>Relevant correction quantities<\/li>\n<\/ul>\n<p>The <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal calibration service<\/a> provides professional calibration solutions for pressure balances, deadweight testers, pressure gauges, sensors, transmitters and other pressure measuring equipment.<\/p>\n<p>europascal can also provide support with maintenance, system configuration and selection of suitable pressure calibration equipment.<\/p>\n<h2>Why Choose the europascal BH4-300B?<\/h2>\n<p>The <strong>europascal BH4-300B Precise Automatic Deadweight Tester<\/strong> combines a hydraulic pressure range from 5 to 300 bar with a standard accuracy of 0.01 % and enhanced performance up to 0.006 % as an option.<\/p>\n<p>Its tungsten carbide piston, treated steel cylinder and calibrated mass system provide the physical basis for reliable and traceable pressure generation.<\/p>\n<p>At the same time, motorized mass rotation, dynamic piston position visualization and automatic pressure calculation simplify operation compared with a conventional manual pressure balance.<\/p>\n<p>For professional laboratories that regularly calibrate pressure gauges, sensors, transmitters and transducers up to 300 bar, the BH4-300B provides an excellent combination of metrological performance, automation and ease of use.<\/p>\n<p><strong>Looking for the europascal BH4-300B or an automatic hydraulic pressure calibration solution up to 300 bar? Contact europascal for expert advice, system configuration and professional calibration services tailored to your requirements.<\/strong><\/p>\n<p><a href=\"https:\/\/europascal.de\/marke\/aremeca-europascal\/\">Further products from europascal Aremeca can be found here.<\/a><\/p>\n<p><a href=\"https:\/\/en.aremeca-instrumentation.com\/\" target=\"_blank\" rel=\"noopener\">Manufacturer information about the europascal BH4-300B can be found on the official Aremeca Instrumentation website.<\/a><\/p>\n<p><a class=\"download-datasheet\" href=\"#\" data-pdf=\"https:\/\/europascal.de\/wp-content\/uploads\/2026\/07\/europascal-bh4-300b-sp-deadweight-tester-hydraulic.pdf\"><span style=\"color: #0000ff;\"><strong><em>Download Datasheet<\/em><\/strong><\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The <strong>europascal BH4-300B Automatic Deadweight Tester<\/strong> is a high-performance single-piston hydraulic pressure standard for precise calibration from <strong>5 to 300 bar (30 MPa)<\/strong>. With a standard accuracy of <strong>0.01 %<\/strong> and enhanced performance <strong>up to 0.006 % as an option<\/strong>, the BH4-300B combines a tungsten carbide piston with motorized mass rotation, dynamic piston position visualization and automatic pressure calculation. It is an ideal solution for professional calibration laboratories and demanding hydraulic pressure calibration applications.<\/p>\n","protected":false},"featured_media":3096,"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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