{"id":6420,"date":"2026-07-17T16:39:20","date_gmt":"2026-07-17T16:39:20","guid":{"rendered":"https:\/\/europascal.de\/product\/geo-calibration-modell-4000\/"},"modified":"2026-09-24T11:28:42","modified_gmt":"2026-09-24T11:28:42","slug":"geo-calibration-modell-4000","status":"publish","type":"product","link":"https:\/\/europascal.de\/en\/product\/geo-calibration-modell-4000\/","title":{"rendered":"GEO Calibration Model 4000 Precise Humidity Calibrator"},"content":{"rendered":"<p data-pm-slice=\"1 1 []\"><strong>GEO Calibration Model 4000<\/strong> is a precise humidity calibrator and temperature generator designed for professional, high-volume calibration of humidity probes, temperature and humidity sensors, data loggers and environmental monitoring instruments. With its large <strong>38-liter calibration chamber<\/strong>, wide operating range and fully automatic calibration capabilities, the Model 4000 provides a powerful solution for calibration laboratories, quality assurance departments and industrial metrology applications.<\/p>\n<p>The <strong>GEO Calibration Model 4000<\/strong> provides a relative humidity range from <strong>5 % RH to 95 % RH<\/strong> and a controlled temperature range from <strong>5 \u00b0C to 55 \u00b0C<\/strong>. The specified relative humidity accuracy is <strong>\u00b11.0 % RH<\/strong>, while temperature accuracy is specified at <strong>\u00b10.1 \u00b0C<\/strong>.<\/p>\n<p>One of the major advantages of the Model 4000 is its combination of high calibration capacity and automation. The large chamber can accommodate multiple suitable devices under test, while the integrated rack supports efficient mass calibration of data loggers.<\/p>\n<p>Three automatically switching desiccant ports support continuous operation during demanding calibration routines. Combined with automatic Ramp\/Soak functionality and typical response times of <strong>5 to 10 minutes<\/strong>, the Model 4000 is designed for efficient multipoint calibration.<\/p>\n<p>At <strong>europascal<\/strong>, we provide professional solutions for humidity and temperature calibration. We can assist you in selecting the appropriate humidity generator, reference sensor and accessories for your individual calibration requirements.<\/p>\n<p>For professional calibration and metrological traceability of humidity and temperature measuring equipment, 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 humidity and temperature calibrator<\/li>\n<li>Relative humidity range from 5 % RH to 95 % RH<\/li>\n<li>Temperature range from 5 \u00b0C to 55 \u00b0C<\/li>\n<li>Relative humidity accuracy \u00b11.0 % RH<\/li>\n<li>Temperature accuracy \u00b10.1 \u00b0C<\/li>\n<li>Large 38-liter calibration chamber<\/li>\n<li>Fully automatic calibrations<\/li>\n<li>Automatic Ramp\/Soak functionality<\/li>\n<li>Typical response time of 5 to 10 minutes<\/li>\n<li>Three auto-switching desiccant ports<\/li>\n<li>Hot-swappable desiccant canisters<\/li>\n<li>Internal rack for mass data logger calibration<\/li>\n<li>Suitable for high-volume probe calibration<\/li>\n<li>Supports multipoint humidity calibration<\/li>\n<li>Simultaneous temperature and humidity control<\/li>\n<li>Suitable for professional calibration laboratories<\/li>\n<li>Designed for demanding quality assurance applications<\/li>\n<li>Suitable for environmental monitoring equipment<\/li>\n<li>Efficient solution for multiple devices under test<\/li>\n<\/ul>\n<h2>Precise Humidity Calibration<\/h2>\n<p>The <strong>GEO Calibration Model 4000<\/strong> is designed for professional humidity calibration where accuracy, repeatability and calibration capacity are important.<\/p>\n<p>Relative humidity is a critical measurement quantity in numerous industries. Reliable humidity measurement is particularly important in pharmaceutical manufacturing, laboratories, food production, storage facilities, environmental monitoring and industrial processes.<\/p>\n<p>Humidity sensors used in these applications need to be regularly calibrated or verified to ensure reliable measurement results.<\/p>\n<p>The Model 4000 generates controlled temperature and humidity conditions, allowing a calibrated reference instrument and one or more devices under test to be exposed to comparable environmental conditions.<\/p>\n<p>After sufficient stabilization, the measurement values can be compared and the deviations of the devices under test determined.<\/p>\n<h2>Wide Humidity Range from 5 % to 95 % RH<\/h2>\n<p>The <strong>GEO Calibration Model 4000<\/strong> provides a wide controlled relative humidity range from:<\/p>\n<p><strong>5 % RH to 95 % RH<\/strong><\/p>\n<p>This wide range enables calibration points to be generated from very dry conditions through typical ambient humidity levels to high relative humidity.<\/p>\n<p>A multipoint calibration can therefore evaluate the performance of a humidity sensor over a large proportion of its operating range.<\/p>\n<p>Depending on the application, typical calibration sequences can include:<\/p>\n<ul data-spread=\"false\">\n<li>Low relative humidity<\/li>\n<li>Medium relative humidity<\/li>\n<li>High relative humidity<\/li>\n<li>Additional application-specific calibration points<\/li>\n<\/ul>\n<p>The exact calibration points should always be selected according to the measurement range, application and required calibration procedure.<\/p>\n<h2>Temperature Range from 5 \u00b0C to 55 \u00b0C<\/h2>\n<p>Humidity calibration is strongly influenced by temperature.<\/p>\n<p>The <strong>GEO Calibration Model 4000<\/strong> therefore provides active temperature control from:<\/p>\n<p><strong>5 \u00b0C to 55 \u00b0C<\/strong><\/p>\n<p>This allows humidity sensors to be evaluated at different temperatures rather than only under laboratory ambient conditions.<\/p>\n<p>The combination of temperature and humidity generation is particularly useful for sensors used in environmental monitoring systems where both measured quantities need to be verified.<\/p>\n<p>It also enables users to investigate the performance of humidity probes under different temperature conditions.<\/p>\n<h2>Relative Humidity Accuracy of \u00b11.0 % RH<\/h2>\n<p>The specified relative humidity accuracy of the <strong>GEO Calibration Model 4000<\/strong> is:<\/p>\n<p><strong>\u00b11.0 % RH<\/strong><\/p>\n<p>This makes the Model 4000 suitable for demanding professional humidity calibration applications.<\/p>\n<p>For an actual calibration, the complete measurement uncertainty must be considered separately.<\/p>\n<p>Relevant contributions can include the reference sensor, generator performance, spatial uniformity, stability, resolution, repeatability, temperature influence and characteristics of the device under test.<\/p>\n<p>The required uncertainty should therefore always be evaluated according to the laboratory&#8217;s calibration procedure.<\/p>\n<h2>Temperature Accuracy of \u00b10.1 \u00b0C<\/h2>\n<p>The specified temperature accuracy is:<\/p>\n<p><strong>\u00b10.1 \u00b0C<\/strong><\/p>\n<p>Accurate temperature control is particularly important for relative humidity calibration because relative humidity changes with temperature.<\/p>\n<p>Even relatively small temperature differences between the reference sensor and device under test can contribute to the overall measurement uncertainty.<\/p>\n<p>The Model 4000 therefore combines precise temperature control with controlled relative humidity generation in one calibration system.<\/p>\n<h2>Large 38-Liter Calibration Chamber<\/h2>\n<p>One of the most important features of the <strong>GEO Calibration Model 4000<\/strong> is its large:<\/p>\n<p><strong>38-liter calibration chamber<\/strong><\/p>\n<p>The large chamber provides sufficient space for high-volume calibration applications.<\/p>\n<p>Compared with compact humidity generators, multiple suitable devices under test can be accommodated simultaneously.<\/p>\n<p>This is particularly useful for laboratories that regularly calibrate large quantities of:<\/p>\n<ul data-spread=\"false\">\n<li>Data loggers<\/li>\n<li>Humidity probes<\/li>\n<li>Temperature and humidity sensors<\/li>\n<li>Environmental monitoring sensors<\/li>\n<li>Hygrometers<\/li>\n<li>Compact humidity transmitters<\/li>\n<\/ul>\n<p>The chamber design therefore supports efficient batch calibration and can significantly increase laboratory throughput.<\/p>\n<h2>Internal Rack for Mass Data Logger Calibration<\/h2>\n<p>Environmental data loggers are frequently used in pharmaceutical production, warehouses, laboratories, transport systems, food storage facilities and other monitored environments.<\/p>\n<p>Organizations may operate dozens or even hundreds of these instruments.<\/p>\n<p>Calibrating each data logger individually can require considerable time.<\/p>\n<p>The <strong>GEO Calibration Model 4000<\/strong> features an internal rack specifically designed to support <strong>mass data logger calibration<\/strong>.<\/p>\n<p>Multiple suitable data loggers can therefore be exposed to the same controlled temperature and humidity conditions.<\/p>\n<p>This makes the Model 4000 particularly attractive for laboratories and companies with a large inventory of environmental monitoring instruments.<\/p>\n<h2>High-Volume Probe Calibration<\/h2>\n<p>The Model 4000 is also designed for <strong>high-volume probe calibration operations<\/strong>.<\/p>\n<p>Multiple suitable humidity probes can be positioned within the calibration system and compared with an appropriate reference instrument.<\/p>\n<p>This enables calibration laboratories to process larger quantities of sensors efficiently.<\/p>\n<p>Applications can include:<\/p>\n<ul data-spread=\"false\">\n<li>Relative humidity probes<\/li>\n<li>Temperature and humidity probes<\/li>\n<li>Environmental monitoring probes<\/li>\n<li>Data logger probes<\/li>\n<li>HVAC sensors<\/li>\n<li>Laboratory humidity sensors<\/li>\n<li>Process monitoring sensors<\/li>\n<\/ul>\n<p>The exact number and arrangement of devices under test depend on their physical dimensions and the required calibration configuration.<\/p>\n<h2>Three Auto-Switching Desiccant Ports<\/h2>\n<p>The <strong>GEO Calibration Model 4000<\/strong> features three automatically switching desiccant ports.<\/p>\n<p>The desiccant system consists of three chambers designed for GEO desiccant canisters.<\/p>\n<p>This configuration provides an important advantage during long calibration routines.<\/p>\n<p>The system can automatically switch between the desiccant ports, helping to prevent an ongoing calibration sequence from being interrupted when one desiccant canister becomes exhausted.<\/p>\n<h2>Hot-Swappable Desiccant Canisters<\/h2>\n<p>The individual desiccant cells operate with isolated valves.<\/p>\n<p>This allows desiccant canisters to be exchanged without necessarily interrupting an ongoing calibration routine.<\/p>\n<p>For laboratories performing long automatic calibration sequences, this can be particularly useful.<\/p>\n<p>Technicians do not need to continuously monitor a single desiccant canister to prevent the calibration process from being interrupted.<\/p>\n<p>This design supports efficient and largely unattended calibration workflows.<\/p>\n<h2>Fully Automatic Calibration<\/h2>\n<p>The <strong>GEO Calibration Model 4000<\/strong> is designed to support fully automatic calibration routines.<\/p>\n<p>Automation can significantly improve efficiency when several calibration points need to be generated sequentially.<\/p>\n<p>Instead of manually setting every humidity and temperature point, the system can control predefined calibration sequences.<\/p>\n<p>This reduces operator intervention and improves repeatability between individual calibration runs.<\/p>\n<p>Automated operation is particularly valuable for:<\/p>\n<ul data-spread=\"false\">\n<li>Multipoint calibrations<\/li>\n<li>Large quantities of sensors<\/li>\n<li>Data logger batch calibration<\/li>\n<li>Repetitive calibration procedures<\/li>\n<li>Long-duration calibration sequences<\/li>\n<\/ul>\n<h2>Automatic Ramp\/Soak<\/h2>\n<p>The Model 4000 provides <strong>automatic Ramp\/Soak functionality<\/strong>.<\/p>\n<p>A ramp defines the controlled transition from one temperature or humidity setpoint to another.<\/p>\n<p>The soak period maintains the selected condition for a defined period.<\/p>\n<p>This functionality makes it possible to create automated calibration sequences containing several humidity and temperature conditions.<\/p>\n<p>Ramp\/Soak operation is especially useful when a standardized calibration procedure is repeated regularly.<\/p>\n<h2>Fast Response Times<\/h2>\n<p>The <strong>GEO Calibration Model 4000<\/strong> provides typical response times of approximately:<\/p>\n<p><strong>5 to 10 minutes<\/strong><\/p>\n<p>This supports efficient changes between calibration conditions.<\/p>\n<p>The actual stabilization time required for a calibration can be longer and depends on the selected setpoints, chamber loading and response characteristics of the reference sensor and devices under test.<\/p>\n<p>A generator reaching its target condition does not automatically mean that every device inside the chamber has reached complete equilibrium.<\/p>\n<p>Sufficient stabilization time should therefore always be allowed before measurement values are recorded.<\/p>\n<h2>Comparison Calibration<\/h2>\n<p>A typical calibration with the <strong>GEO Calibration Model 4000<\/strong> can be performed using the comparison method.<\/p>\n<p>A calibrated reference humidity sensor and the devices under test are exposed to the same controlled environmental conditions.<\/p>\n<p>The Model 4000 generates the required humidity and temperature setpoints.<\/p>\n<p>After sufficient stabilization, the indication of each device under test is compared with the reference value.<\/p>\n<p>The procedure can then be repeated at additional humidity or temperature points.<\/p>\n<p>This provides significantly more information about sensor performance than a single-point check.<\/p>\n<h2>Applications<\/h2>\n<p>The <strong>GEO Calibration Model 4000<\/strong> is suitable for a wide variety of professional calibration applications, including:<\/p>\n<ul data-spread=\"false\">\n<li>Accredited calibration laboratories<\/li>\n<li>In-house calibration laboratories<\/li>\n<li>Quality assurance<\/li>\n<li>Pharmaceutical industry<\/li>\n<li>Environmental monitoring<\/li>\n<li>Food production<\/li>\n<li>Storage and logistics<\/li>\n<li>HVAC<\/li>\n<li>Building automation<\/li>\n<li>Research and development<\/li>\n<li>Production monitoring<\/li>\n<li>Process measurement<\/li>\n<li>Data logger calibration<\/li>\n<li>Humidity probe calibration<\/li>\n<li>Measuring equipment monitoring<\/li>\n<\/ul>\n<p>Its combination of a large chamber, wide humidity range and automatic operation makes it particularly suitable for laboratories with high calibration throughput.<\/p>\n<h2>Technical Highlights<\/h2>\n<p>The <strong>GEO Calibration Model 4000<\/strong> combines precision, automation and high calibration capacity:<\/p>\n<ul data-spread=\"false\">\n<li>Relative humidity range: 5 % to 95 % RH<\/li>\n<li>Temperature range: 5 \u00b0C to 55 \u00b0C<\/li>\n<li>Relative humidity accuracy: \u00b11.0 % RH<\/li>\n<li>Temperature accuracy: \u00b10.1 \u00b0C<\/li>\n<li>Calibration chamber capacity: 38 liters<\/li>\n<li>Fully automatic calibration capability<\/li>\n<li>Automatic Ramp\/Soak<\/li>\n<li>Three auto-switching desiccant ports<\/li>\n<li>Hot-swappable desiccant canisters<\/li>\n<li>Internal rack for mass data logger calibration<\/li>\n<li>Typical response time: 5 to 10 minutes<\/li>\n<li>Designed for high-volume probe calibration<\/li>\n<li>Suitable for high-accuracy mass data logger calibration<\/li>\n<li>Supports multipoint humidity calibration<\/li>\n<\/ul>\n<h2>Technical Specifications<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>GEO Calibration Model 4000<\/th>\n<\/tr>\n<tr>\n<td>Manufacturer<\/td>\n<td>GEO Calibration<\/td>\n<\/tr>\n<tr>\n<td>Model<\/td>\n<td>4000<\/td>\n<\/tr>\n<tr>\n<td>Device type<\/td>\n<td>Humidity and Temperature Calibrator<\/td>\n<\/tr>\n<tr>\n<td>Humidity range<\/td>\n<td>5 % to 95 % RH<\/td>\n<\/tr>\n<tr>\n<td>Temperature range<\/td>\n<td>5 \u00b0C to 55 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Relative humidity accuracy<\/td>\n<td>\u00b11.0 % RH<\/td>\n<\/tr>\n<tr>\n<td>Temperature accuracy<\/td>\n<td>\u00b10.1 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Chamber capacity<\/td>\n<td>38 liters<\/td>\n<\/tr>\n<tr>\n<td>Typical response time<\/td>\n<td>5\u201310 minutes<\/td>\n<\/tr>\n<tr>\n<td>Automatic calibration<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Automatic Ramp\/Soak<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>Desiccant ports<\/td>\n<td>3, automatically switching<\/td>\n<\/tr>\n<tr>\n<td>Desiccant replacement<\/td>\n<td>Hot-swappable system<\/td>\n<\/tr>\n<tr>\n<td>Internal rack<\/td>\n<td>Yes, for mass data logger calibration<\/td>\n<\/tr>\n<tr>\n<td>Typical application<\/td>\n<td>High-volume probe and data logger calibration<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Model 4000 or Model 4000 EXP?<\/h2>\n<p>The <strong>GEO Calibration Model 4000<\/strong> and <strong>Model 4000 EXP<\/strong> are designed for different calibration requirements.<\/p>\n<p>The standard <strong>Model 4000<\/strong> focuses on high accuracy and high calibration capacity. It provides a <strong>38-liter chamber<\/strong>, a relative humidity range from <strong>5 % to 95 % RH<\/strong>, a temperature range from <strong>5 \u00b0C to 55 \u00b0C<\/strong>, relative humidity accuracy of <strong>\u00b11.0 % RH<\/strong> and temperature accuracy of <strong>\u00b10.1 \u00b0C<\/strong>.<\/p>\n<p>The Model 4000 EXP, by comparison, is a specialized vertical system designed to accommodate larger calibration equipment and instruments requiring a vertical configuration.<\/p>\n<p>For high-volume calibration of humidity probes and multiple data loggers, the standard <strong>GEO Calibration Model 4000<\/strong> is therefore specifically designed around efficient batch calibration and automation.<\/p>\n<h2>Why Choose the GEO Calibration Model 4000?<\/h2>\n<p>The <strong>GEO Calibration Model 4000<\/strong> combines a wide humidity and temperature range with high accuracy, a large calibration chamber and extensive automation.<\/p>\n<p>Its <strong>5 % to 95 % RH<\/strong> range enables humidity sensors to be evaluated across a broad range of operating conditions, while the <strong>5 \u00b0C to 55 \u00b0C<\/strong> temperature range supports calibration at different temperatures.<\/p>\n<p>The large <strong>38-liter chamber<\/strong> and internal rack make the system particularly suitable for calibration laboratories processing multiple data loggers or humidity probes.<\/p>\n<p>Three automatically switching desiccant ports help support long calibration sequences, while automatic Ramp\/Soak functionality reduces manual intervention during multipoint calibrations.<\/p>\n<p>These features make the Model 4000 particularly suitable for professional calibration laboratories, quality assurance departments and organizations with large quantities of environmental monitoring equipment.<\/p>\n<p>At <strong>europascal<\/strong>, we can assist you in selecting the appropriate GEO Calibration humidity generator, reference sensor and accessories for your individual calibration requirements.<\/p>\n<p>For professional calibration and metrological traceability of humidity sensors, data loggers, hygrometers and temperature measuring equipment, use the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal Calibration Service<\/a>.<\/p>\n<p>Additional measurement and calibration solutions are available through the <a href=\"https:\/\/europascal.de\/en\/\">europascal English homepage<\/a>.<\/p>\n<p><a href=\"https:\/\/europascal.de\/en\/\">Discover more GEO Calibration products and calibration solutions from europascal.<\/a><\/p>\n<p>Manufacturer information about the <strong>GEO Calibration Model 4000<\/strong> is available from the <a href=\"https:\/\/www.geocalibration.com\/\" target=\"_blank\" rel=\"noopener\">official GEO Calibration website<\/a>.<\/p>\n<p><a class=\"download-datasheet\" href=\"#\" data-pdf=\"https:\/\/europascal.de\/wp-content\/uploads\/2026\/07\/Geo-Calibration-Modell-4000-Humidity-Generator-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>GEO Calibration Model 4000<\/strong> is a precise automatic humidity and temperature calibrator with a large <strong>38-liter chamber<\/strong>. With a range of <strong>5 % to 95 % RH<\/strong>, temperatures from <strong>5 \u00b0C to 55 \u00b0C<\/strong>, humidity accuracy of <strong>\u00b11.0 % RH<\/strong> and temperature accuracy of <strong>\u00b10.1 \u00b0C<\/strong>, it is ideal for high-volume calibration of humidity probes and environmental data loggers.<\/p>\n","protected":false},"featured_media":6421,"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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