{"id":6429,"date":"2026-07-17T14:36:22","date_gmt":"2026-07-17T14:36:22","guid":{"rendered":"https:\/\/europascal.de\/product\/europascal-ep-bg100k\/"},"modified":"2026-09-24T12:02:23","modified_gmt":"2026-09-24T12:02:23","slug":"europascal-ep-bg100k","status":"publish","type":"product","link":"https:\/\/europascal.de\/en\/product\/europascal-ep-bg100k\/","title":{"rendered":"europascal EP-BG100k Precise Piston Gauge for Bidirectional Pressure"},"content":{"rendered":"<p data-pm-slice=\"1 1 []\"><strong>europascal EP-BG100k<\/strong> is a precision piston gauge for generating and measuring bidirectional pneumatic pressure. Designed for operation with both positive and negative gauge pressure, the system covers a pressure range from <strong>\u2212100 kPa to +100 kPa<\/strong> and uses air as the pressure medium. This makes the EP-BG100k particularly suitable for professional calibration laboratories requiring an accurate physical pressure reference around atmospheric pressure.<\/p>\n<p>Unlike conventional piston gauges designed exclusively for positive pressure, the <strong>europascal EP-BG100k<\/strong> enables both positive and negative gauge pressure to be generated with one system. This bidirectional capability is especially useful for calibration of differential pressure instruments, low-pressure gauges, pressure transmitters, sensors and other devices operating around atmospheric pressure.<\/p>\n<p>The fundamental operating principle of the piston gauge is based on the relationship between force and effective piston area. Precisely characterized masses generate a defined force on the piston-cylinder assembly. The resulting pressure can be calculated from the applied force and effective piston area while taking the relevant correction quantities into account.<\/p>\n<p>As a result, the EP-BG100k provides a pressure reference based on fundamental physical quantities and is particularly suitable for demanding pressure metrology.<\/p>\n<p>At <strong>europascal<\/strong>, we provide complete solutions for professional pressure calibration. In addition to piston gauges and deadweight testers, our portfolio includes pressure controllers, pressure calibrators, digital pressure gauges, pressure generators and accessories.<\/p>\n<p>For regular calibration and metrological traceability of pressure standards and measuring instruments, use the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal Calibration Service<\/a>.<\/p>\n<h2>Your Benefits at a Glance<\/h2>\n<ul data-spread=\"false\">\n<li>Precision piston gauge for bidirectional pressure<\/li>\n<li>Positive and negative gauge pressure generation<\/li>\n<li>Pressure range from \u2212100 kPa to +100 kPa<\/li>\n<li>Pneumatic operating principle<\/li>\n<li>Air as the pressure medium<\/li>\n<li>Physical pressure reference based on force and area<\/li>\n<li>Suitable for pressure calibration around atmospheric pressure<\/li>\n<li>One system for positive and negative pressure<\/li>\n<li>Suitable for differential pressure applications<\/li>\n<li>Suitable for pressure gauges<\/li>\n<li>Suitable for digital pressure gauges<\/li>\n<li>Suitable for pressure transmitters<\/li>\n<li>Suitable for pressure transducers<\/li>\n<li>Suitable for pressure sensors<\/li>\n<li>Suitable for low-pressure measuring instruments<\/li>\n<li>Excellent solution for calibration laboratories<\/li>\n<li>Designed for professional pressure metrology<\/li>\n<li>Supports traceable calibration workflows<\/li>\n<li>Suitable for research and development<\/li>\n<li>Suitable for quality assurance<\/li>\n<\/ul>\n<h2>Ideal for Demanding Calibration Applications<\/h2>\n<p>The <strong>europascal EP-BG100k<\/strong> was developed for pressure calibration applications where both positive and negative gauge pressure must be generated accurately.<\/p>\n<p>Many pressure instruments operate around atmospheric pressure. Depending on their application, these instruments may measure positive gauge pressure, negative gauge pressure or both directions.<\/p>\n<p>Using separate systems for positive and negative pressure can make calibration more complicated.<\/p>\n<p>The bidirectional design of the EP-BG100k provides an efficient solution by covering both pressure directions with one piston gauge.<\/p>\n<p>Typical applications include:<\/p>\n<ul data-spread=\"false\">\n<li>Accredited calibration laboratories<\/li>\n<li>Factory calibration laboratories<\/li>\n<li>Quality assurance<\/li>\n<li>Pressure instrument manufacturing<\/li>\n<li>Research and development<\/li>\n<li>Environmental measurement<\/li>\n<li>Process measurement<\/li>\n<li>HVAC applications<\/li>\n<li>Differential pressure measurement<\/li>\n<li>Low-pressure calibration<\/li>\n<li>Sensor development<\/li>\n<li>Production testing<\/li>\n<\/ul>\n<p>The EP-BG100k is therefore particularly useful wherever precise pressure generation close to atmospheric pressure is required.<\/p>\n<h2>Bidirectional Pressure from \u2212100 kPa to +100 kPa<\/h2>\n<p>The <strong>europascal EP-BG100k<\/strong> provides a bidirectional pressure range from:<\/p>\n<p><strong>\u2212100 kPa to +100 kPa<\/strong><\/p>\n<p>This corresponds to approximately:<\/p>\n<p><strong>\u22121 bar to +1 bar<\/strong><\/p>\n<p>relative to atmospheric pressure.<\/p>\n<p>The negative portion of the range enables vacuum or negative gauge pressure calibration, while the positive portion provides controlled gauge pressure above atmospheric pressure.<\/p>\n<p>This combination allows instruments with bipolar or bidirectional measuring ranges to be calibrated without changing to a fundamentally different pressure reference system.<\/p>\n<h2>What Does Bidirectional Pressure Mean?<\/h2>\n<p>Bidirectional pressure measurement means that pressure can be measured or generated on both sides of the atmospheric reference point.<\/p>\n<p>At <strong>0 kPa gauge pressure<\/strong>, the system pressure corresponds to the atmospheric reference pressure.<\/p>\n<p>Positive gauge pressure means that the applied pressure is higher than atmospheric pressure.<\/p>\n<p>Negative gauge pressure means that the applied pressure is lower than atmospheric pressure.<\/p>\n<p>The <strong>europascal EP-BG100k<\/strong> is designed specifically for this type of operation.<\/p>\n<p>Its pressure range extends from negative gauge pressure through zero to positive gauge pressure.<\/p>\n<p>This makes the system particularly useful for devices that naturally operate around atmospheric pressure.<\/p>\n<h2>Piston Gauge Measurement Principle<\/h2>\n<p>The <strong>europascal EP-BG100k<\/strong> uses the proven piston gauge principle.<\/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> = pressure<br \/>\n<strong>F<\/strong> = force acting on the piston<br \/>\n<strong>A<\/strong> = effective piston area<\/p>\n<p>A precisely defined force acts on a characterized piston-cylinder assembly.<\/p>\n<p>The resulting pressure can be determined from the applied force and effective area.<\/p>\n<p>For high-accuracy measurements, additional influence quantities can be considered according to the required measurement model and calibration procedure.<\/p>\n<p>These may include:<\/p>\n<ul data-spread=\"false\">\n<li>Local gravitational acceleration<\/li>\n<li>Air buoyancy<\/li>\n<li>Temperature<\/li>\n<li>Effective piston area<\/li>\n<li>Atmospheric pressure<\/li>\n<li>Deformation effects<\/li>\n<li>Pressure head corrections<\/li>\n<\/ul>\n<p>This physically based measurement principle is one of the major advantages of piston gauges in professional pressure metrology.<\/p>\n<h2>Pneumatic Operation with Air<\/h2>\n<p>The <strong>europascal EP-BG100k<\/strong> operates pneumatically and uses:<\/p>\n<p><strong>Air<\/strong><\/p>\n<p>as the pressure medium.<\/p>\n<p>Pneumatic operation is particularly appropriate for the relatively low pressure range covered by the EP-BG100k.<\/p>\n<p>Unlike hydraulic pressure balances, no oil is required in the measurement circuit.<\/p>\n<p>This can be advantageous when calibrating pressure instruments that are designed for clean pneumatic operation or must not be contaminated with hydraulic fluids.<\/p>\n<p>The use of air also makes the system suitable for many sensitive low-pressure devices.<\/p>\n<h2>Calibration Around Atmospheric Pressure<\/h2>\n<p>Pressure calibration around atmospheric pressure requires particular attention because the system must transition between negative and positive gauge pressure.<\/p>\n<p>The <strong>europascal EP-BG100k<\/strong> is designed specifically for this measurement task.<\/p>\n<p>A typical calibration sequence can include points such as:<\/p>\n<ul data-spread=\"false\">\n<li>Negative full-scale pressure<\/li>\n<li>Intermediate negative pressure<\/li>\n<li>Zero pressure<\/li>\n<li>Intermediate positive pressure<\/li>\n<li>Positive full-scale pressure<\/li>\n<\/ul>\n<p>Additional points can be selected according to the device under test and applicable calibration procedure.<\/p>\n<p>This allows the complete characteristic of a bidirectional pressure instrument to be evaluated.<\/p>\n<h2>Calibration of Differential Pressure Instruments<\/h2>\n<p>Differential pressure instruments are widely used in industrial and laboratory applications.<\/p>\n<p>Typical applications include:<\/p>\n<ul data-spread=\"false\">\n<li>Filter monitoring<\/li>\n<li>Cleanroom monitoring<\/li>\n<li>HVAC systems<\/li>\n<li>Airflow measurement<\/li>\n<li>Ventilation systems<\/li>\n<li>Process control<\/li>\n<li>Leak testing<\/li>\n<li>Environmental monitoring<\/li>\n<\/ul>\n<p>Many of these instruments operate at relatively low pressures and may require calibration on both sides of zero.<\/p>\n<p>The <strong>europascal EP-BG100k<\/strong> provides a suitable reference principle for these applications.<\/p>\n<h2>Calibration of Pressure Gauges<\/h2>\n<p>The EP-BG100k can be used for calibration of suitable mechanical and digital pressure gauges within its pressure range.<\/p>\n<p>The device under test is exposed to defined pressure values generated by the piston gauge.<\/p>\n<p>Its indication is then compared with the calculated reference pressure.<\/p>\n<p>A calibration can be performed at several increasing and decreasing pressure points.<\/p>\n<p>Depending on the calibration procedure, this allows characteristics such as indication deviation, repeatability and hysteresis to be evaluated.<\/p>\n<h2>Calibration of Pressure Transmitters<\/h2>\n<p>Pressure transmitters can also be calibrated using the <strong>europascal EP-BG100k<\/strong> as the pneumatic pressure reference.<\/p>\n<p>The transmitter is exposed to defined reference pressures while its electrical output is measured using suitable electrical measurement equipment.<\/p>\n<p>Typical transmitter signals include:<\/p>\n<ul data-spread=\"false\">\n<li>4\u201320 mA<\/li>\n<li>Voltage<\/li>\n<li>Digital output signals<\/li>\n<\/ul>\n<p>For bidirectional transmitters, calibration points can be generated below and above atmospheric pressure.<\/p>\n<p>This enables the complete pressure measurement range of the transmitter to be evaluated.<\/p>\n<h2>Pressure Sensor Calibration<\/h2>\n<p>Modern pressure sensors are used in a wide variety of applications ranging from industrial automation to research.<\/p>\n<p>The <strong>europascal EP-BG100k<\/strong> provides a physical reference for suitable sensors operating within the bidirectional pressure range.<\/p>\n<p>Depending on the sensor design, an appropriate readout, digital multimeter, calibrator or data acquisition system can be used to measure the electrical output.<\/p>\n<p>The piston gauge provides the reference pressure against which the sensor output is evaluated.<\/p>\n<h2>Advantages of a Physical Pressure Reference<\/h2>\n<p>Electronic reference pressure gauges provide convenient pressure measurements, but piston gauges offer a fundamentally different metrological approach.<\/p>\n<p>The pressure generated by a piston gauge is derived from physical quantities including force and effective piston area.<\/p>\n<p>This provides several advantages for demanding metrology applications.<\/p>\n<p>A well-characterized piston gauge can provide:<\/p>\n<ul data-spread=\"false\">\n<li>Excellent long-term stability<\/li>\n<li>High repeatability<\/li>\n<li>A physically defined pressure reference<\/li>\n<li>Traceable pressure generation<\/li>\n<li>Low dependence on electronic sensor drift<\/li>\n<li>Excellent suitability as a laboratory reference standard<\/li>\n<\/ul>\n<p>These characteristics make piston gauges valuable instruments for maintaining pressure traceability.<\/p>\n<h2>Importance of Local Gravity<\/h2>\n<p>The force generated by a calibrated mass depends on gravitational acceleration.<\/p>\n<p>For high-accuracy piston gauge measurements, the local gravitational acceleration at the installation location can therefore be an important influence quantity.<\/p>\n<p>Standard gravity is defined as:<\/p>\n<p><strong>9.80665 m\/s\u00b2<\/strong><\/p>\n<p>However, the actual local value varies depending on geographic location and elevation.<\/p>\n<p>When required by the measurement uncertainty, the local gravity value can be included in the calculation of the generated pressure.<\/p>\n<p>This is especially relevant when a piston gauge is used as a high-level reference standard.<\/p>\n<h2>Environmental Influences<\/h2>\n<p>Environmental conditions can affect high-accuracy pressure measurements.<\/p>\n<p>Relevant quantities can include:<\/p>\n<ul data-spread=\"false\">\n<li>Ambient temperature<\/li>\n<li>Atmospheric pressure<\/li>\n<li>Relative humidity<\/li>\n<li>Local gravity<\/li>\n<li>Air density<\/li>\n<li>Piston-cylinder temperature<\/li>\n<\/ul>\n<p>The significance of each contribution depends on the required accuracy and measurement uncertainty.<\/p>\n<p>For professional calibration applications, these influence quantities should be considered according to the applicable measurement model and laboratory procedure.<\/p>\n<h2>Applications in Calibration Laboratories<\/h2>\n<p>The <strong>europascal EP-BG100k<\/strong> is particularly suitable for professional pressure laboratories requiring an accurate reference around atmospheric pressure.<\/p>\n<p>Its bidirectional capability allows one system to cover negative and positive gauge pressure.<\/p>\n<p>This can simplify calibration workflows and reduce the need to change between separate pressure reference systems.<\/p>\n<p>Typical users include:<\/p>\n<ul data-spread=\"false\">\n<li>DAkkS-accredited calibration laboratories<\/li>\n<li>ISO\/IEC 17025 calibration laboratories<\/li>\n<li>National and industrial metrology laboratories<\/li>\n<li>Factory calibration departments<\/li>\n<li>Pressure instrument manufacturers<\/li>\n<li>Research institutes<\/li>\n<li>Quality assurance departments<\/li>\n<li>Service organizations<\/li>\n<\/ul>\n<h2>Technical Highlights<\/h2>\n<p>The <strong>europascal EP-BG100k<\/strong> combines bidirectional operation with the proven piston gauge measurement principle:<\/p>\n<ul data-spread=\"false\">\n<li>Bidirectional pneumatic piston gauge<\/li>\n<li>Pressure range from \u2212100 kPa to +100 kPa<\/li>\n<li>Approximately \u22121 bar to +1 bar gauge pressure<\/li>\n<li>Positive and negative pressure generation<\/li>\n<li>Air as pressure medium<\/li>\n<li>Physical pressure generation based on force and area<\/li>\n<li>Suitable for calibration around atmospheric pressure<\/li>\n<li>Suitable for differential pressure applications<\/li>\n<li>Suitable for low-pressure instruments<\/li>\n<li>Suitable for pressure gauges<\/li>\n<li>Suitable for transmitters<\/li>\n<li>Suitable for sensors<\/li>\n<li>Professional laboratory reference<\/li>\n<li>Designed for pressure metrology<\/li>\n<li>Suitable for traceable calibration procedures<\/li>\n<\/ul>\n<h2>Technical Specifications<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>europascal EP-BG100k<\/th>\n<\/tr>\n<tr>\n<td>Manufacturer<\/td>\n<td>europascal<\/td>\n<\/tr>\n<tr>\n<td>Model<\/td>\n<td>EP-BG100k<\/td>\n<\/tr>\n<tr>\n<td>Device type<\/td>\n<td>Bidirectional Piston Gauge<\/td>\n<\/tr>\n<tr>\n<td>Pressure range<\/td>\n<td>\u2212100 kPa to +100 kPa<\/td>\n<\/tr>\n<tr>\n<td>Approximate range in bar<\/td>\n<td>\u22121 bar to +1 bar<\/td>\n<\/tr>\n<tr>\n<td>Pressure mode<\/td>\n<td>Positive and negative gauge pressure<\/td>\n<\/tr>\n<tr>\n<td>Pressure medium<\/td>\n<td>Air<\/td>\n<\/tr>\n<tr>\n<td>Operating principle<\/td>\n<td>Piston gauge<\/td>\n<\/tr>\n<tr>\n<td>Reference principle<\/td>\n<td>Force \/ effective piston area<\/td>\n<\/tr>\n<tr>\n<td>Typical applications<\/td>\n<td>Low and bidirectional pressure calibration<\/td>\n<\/tr>\n<tr>\n<td>Suitable for<\/td>\n<td>Gauges, transmitters, transducers and sensors<\/td>\n<\/tr>\n<tr>\n<td>Application area<\/td>\n<td>Professional pressure metrology<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Pressure Calibration at europascal<\/h2>\n<p>In addition to providing high-quality pressure calibration equipment, <strong>europascal<\/strong> operates specialized calibration laboratories for pressure and other measurement quantities.<\/p>\n<p>The europascal pressure laboratory covers an exceptionally wide range of pressure measurement applications, from very low pressures to ultra-high pressure.<\/p>\n<p>This experience enables europascal to support customers not only in selecting a suitable piston gauge but also in developing complete calibration solutions.<\/p>\n<p>Depending on the application, europascal can assist with:<\/p>\n<ul data-spread=\"false\">\n<li>Selection of reference standards<\/li>\n<li>Pressure generation<\/li>\n<li>Adapters and connections<\/li>\n<li>Calibration procedures<\/li>\n<li>Measurement uncertainty<\/li>\n<li>Metrological traceability<\/li>\n<li>Maintenance and repair<\/li>\n<li>Calibration of pressure equipment<\/li>\n<\/ul>\n<p>For professional calibration services, visit the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal Calibration Service<\/a>.<\/p>\n<h2>Why Choose the europascal EP-BG100k?<\/h2>\n<p>The <strong>europascal EP-BG100k<\/strong> provides a specialized solution for precise pneumatic pressure generation on both sides of atmospheric pressure.<\/p>\n<p>Its bidirectional range from <strong>\u2212100 kPa to +100 kPa<\/strong> allows negative gauge pressure, zero pressure and positive gauge pressure to be covered with one reference system.<\/p>\n<p>This makes the EP-BG100k particularly useful for calibration of pressure instruments that operate around atmospheric pressure.<\/p>\n<p>The pneumatic operating principle uses air as the pressure medium, avoiding contamination of sensitive devices under test with hydraulic fluids.<\/p>\n<p>At the same time, the piston gauge principle provides a physical pressure reference based on force and effective piston area.<\/p>\n<p>For professional calibration laboratories, pressure instrument manufacturers and research facilities, the EP-BG100k therefore provides an effective solution for bidirectional pressure metrology.<\/p>\n<p>At <strong>europascal<\/strong>, we can assist you in integrating the EP-BG100k into your calibration laboratory and selecting the appropriate pressure connections, accessories and supporting measurement equipment.<\/p>\n<p>For professional calibration and metrological traceability of piston gauges, pressure gauges, transmitters and pressure sensors, use the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal Calibration Service<\/a>.<\/p>\n<p><a href=\"https:\/\/europascal.de\/en\/\">Discover more pressure calibration products from europascal.<\/a><\/p>\n<p>Manufacturer information about the <strong>europascal EP-BG100k<\/strong> is available directly from <a href=\"https:\/\/europascal.de\/en\/\">europascal<\/a>.<\/p>\n<p><a class=\"download-datasheet\" href=\"#\" data-pdf=\"https:\/\/europascal.de\/wp-content\/uploads\/2026\/07\/europascal-ep-bg100k-piston-gauge-for-bi-directional-pressure-1.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>europascal EP-BG100k<\/strong> is a precise pneumatic piston gauge for bidirectional pressure calibration from <strong>\u2212100 kPa to +100 kPa<\/strong>. Using air as the pressure medium, it generates both negative and positive gauge pressure and is ideal for calibration laboratories, differential pressure applications, pressure transmitters, gauges and sensors.<\/p>\n","protected":false},"featured_media":3102,"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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