{"id":6395,"date":"2026-07-17T16:38:56","date_gmt":"2026-07-17T16:38:56","guid":{"rendered":"https:\/\/europascal.de\/product\/geo-calibration-hygro-max\/"},"modified":"2026-09-24T09:53:08","modified_gmt":"2026-09-24T09:53:08","slug":"geo-calibration-hygro-max","status":"publish","type":"product","link":"https:\/\/europascal.de\/en\/product\/geo-calibration-hygro-max\/","title":{"rendered":"GEO Calibration Hygro Max Precise Humidity Calibrator"},"content":{"rendered":"<p data-pm-slice=\"1 1 []\">The <strong>GEO Calibration Hygro Max<\/strong> is a high precision humidity and temperature calibrator designed for demanding applications in calibration laboratories, quality assurance, research and industry. With a temperature range from <strong>0 \u00b0C to 60 \u00b0C<\/strong> and a humidity range of up to <strong>1 % to 99 % RH at 23 \u00b0C<\/strong>, the system covers an exceptionally wide operating range. At the same time, the large calibration chamber provides sufficient space for multiple humidity sensors, data loggers and other measuring instruments.<\/p>\n<p>One of the key strengths of the <strong>GEO Calibration Hygro Max<\/strong> is its high measurement accuracy. The specified system accuracy for temperature is <strong>\u00b10.1 \u00b0C or better<\/strong>, with a typical accuracy of \u00b10.05 \u00b0C. Relative humidity accuracy is specified at <strong>\u00b10.50 % RH or better<\/strong>, with a typical value of \u00b10.30 % RH. The actual specifications refer to the accuracy of the reference sensor used.<\/p>\n<p>The test chamber is made of carbon fiber. This construction was selected to reduce outgassing effects inside the chamber. The system also features a special heat dissipation design. This makes the Hygro Max particularly suitable for applications requiring high accuracy, long term stability and a large calibration volume.<\/p>\n<p>For efficient calibration, the instrument provides automatic calibration sequences as well as automatic Ramp and Soak functions. The typical response time is specified at 5 to 10 minutes. This makes the <strong>GEO Calibration Hygro Max<\/strong> particularly suitable for calibration laboratories with a high throughput of devices under test.<\/p>\n<p>In addition to professional humidity and temperature measurement technology, europascal provides comprehensive services for the metrological traceability of your measuring instruments. Information about DAkkS accredited calibration of humidity measuring instruments and other quantities can be found at the <a href=\"https:\/\/europascal.de\/en\/calibration-services\/\">europascal calibration services<\/a>.<\/p>\n<h2>Your Benefits at a Glance<\/h2>\n<ul data-spread=\"false\">\n<li>Wide temperature range from 0 \u00b0C to 60 \u00b0C<\/li>\n<li>Humidity range of up to 1 % to 99 % RH at 23 \u00b0C<\/li>\n<li>Humidity accuracy of \u00b10.50 % RH or better<\/li>\n<li>Typical humidity accuracy of \u00b10.30 % RH<\/li>\n<li>Temperature accuracy of \u00b10.1 \u00b0C or better<\/li>\n<li>Typical temperature accuracy of \u00b10.05 \u00b0C<\/li>\n<li>PID control<\/li>\n<li>Temperature stability of 0.05 \u00b0C<\/li>\n<li>Humidity stability of 0.10 % RH at 23 \u00b0C<\/li>\n<li>Temperature uniformity of 0.10 \u00b0C<\/li>\n<li>Humidity uniformity of 0.30 % RH at 23 \u00b0C<\/li>\n<li>Large carbon fiber calibration chamber<\/li>\n<li>Up to 12 sensor ports<\/li>\n<li>Automatic calibration sequences<\/li>\n<li>Automatic Ramp and Soak functions<\/li>\n<li>Three automatically switching desiccant containers<\/li>\n<li>Desiccant containers can be replaced during operation<\/li>\n<li>USB interface<\/li>\n<li>Internal insert for multiple data loggers<\/li>\n<li>Suitable for high throughput calibration applications<\/li>\n<\/ul>\n<p>This combination makes the <strong>GEO Calibration Hygro Max<\/strong> particularly attractive for professional calibration laboratories requiring both high accuracy and high throughput.<\/p>\n<h2>Ideal for Demanding Calibration Applications<\/h2>\n<p>The <strong>GEO Calibration Hygro Max Humidity Calibrator<\/strong> was developed for applications requiring highly accurate controlled temperature and humidity conditions.<\/p>\n<p>Typical applications include:<\/p>\n<ul data-spread=\"false\">\n<li>Calibration laboratories<\/li>\n<li>DAkkS accredited calibration laboratories<\/li>\n<li>In house calibration laboratories<\/li>\n<li>Quality assurance<\/li>\n<li>Measuring equipment monitoring<\/li>\n<li>Pharmaceutical industry<\/li>\n<li>Food industry<\/li>\n<li>Environmental measurement technology<\/li>\n<li>Research and development<\/li>\n<li>Production<\/li>\n<li>Building technology<\/li>\n<li>Climate measurement technology<\/li>\n<li>Data logger calibration<\/li>\n<li>Humidity sensor calibration<\/li>\n<li>Hygrometer calibration<\/li>\n<li>Calibration of temperature and humidity measuring instruments<\/li>\n<\/ul>\n<p>The large round calibration chamber is particularly suitable for accommodating multiple devices under test simultaneously. GEO Calibration specifically identifies data loggers, recorders and humidity probes as typical applications.<\/p>\n<h2>Flexible Expandability<\/h2>\n<p>The <strong>GEO Calibration Hygro Max<\/strong> is designed for different device sizes and calibration requirements. The current manufacturer specification includes a 12 port door as part of the standard configuration. Alternative doors with 10 or 12 ports and different inserts for various sensor diameters are also available.<\/p>\n<p>Different sizes are available for the sensor feedthroughs. This allows humidity probes and other measuring instruments with different diameters to be securely integrated into the calibration chamber.<\/p>\n<p>An optional insert for a chilled mirror dew point instrument is also available. This allows a highly accurate reference instrument to be integrated directly into the calibration setup.<\/p>\n<p>A USB interface enables connection to external systems and supports integration into automated calibration processes.<\/p>\n<h2>Large Carbon Fiber Calibration Chamber<\/h2>\n<p>A key feature of the <strong>GEO Calibration Hygro Max<\/strong> is its specially designed carbon fiber calibration chamber.<\/p>\n<p>According to the current manufacturer data, the chamber has a geometric volume of <strong>21 liters<\/strong> and a usable working volume of approximately <strong>17 liters<\/strong>. The chamber has a diameter of approximately 34.44 cm and a depth of approximately 23 cm.<\/p>\n<p>The use of carbon fiber is intended to reduce outgassing effects. In precision humidity calibration, materials inside a test chamber can absorb or release moisture and thereby influence stabilization.<\/p>\n<p>The special construction of the Hygro Max therefore supports precise and reproducible humidity conditions.<\/p>\n<h2>Automatic Ramp and Soak Functions<\/h2>\n<p>The <strong>GEO Calibration Hygro Max<\/strong> supports automatic Ramp and Soak sequences. This allows different temperature and humidity setpoints to be approached automatically and then maintained at stable conditions for defined periods.<\/p>\n<p>Typical temperature ramp rates are <strong>0.50 \u00b0C per minute for cooling<\/strong> and <strong>1.00 \u00b0C per minute for heating<\/strong>.<\/p>\n<p>For relative humidity, the typical rate of change is <strong>1.00 % RH per minute from high to low humidity<\/strong> and <strong>2.50 % RH per minute from low to high humidity<\/strong>. The actual achievable values depend on ambient conditions and the condition of the desiccant.<\/p>\n<p>This automation enables efficient multi point calibrations and helps standardize recurring calibration procedures.<\/p>\n<h2>Automatic Desiccant System<\/h2>\n<p>For generating low humidity levels, the <strong>GEO Calibration Hygro Max<\/strong> features a special desiccant system.<\/p>\n<p>The system includes <strong>three automatically switching desiccant chambers<\/strong>. This enables the humidity generator to perform long calibration sequences without the entire calibration process being interrupted automatically when one desiccant container is exhausted.<\/p>\n<p>Each container has a separate valve. Individual desiccant containers can therefore be replaced even during an active calibration sequence without interrupting the complete process.<\/p>\n<p>This design provides a significant practical advantage, particularly for automated calibrations with many calibration points and long stabilization times.<\/p>\n<h2>Technical Highlights<\/h2>\n<p>The <strong>GEO Calibration Hygro Max<\/strong> combines an exceptionally wide control range with high accuracy and automated calibration functions.<\/p>\n<ul data-spread=\"false\">\n<li>Temperature range from 0 \u00b0C to 60 \u00b0C<\/li>\n<li>Relative humidity range up to 1 % to 99 % RH at 23 \u00b0C<\/li>\n<li>Temperature accuracy \u00b10.1 \u00b0C or better<\/li>\n<li>Typical temperature accuracy \u00b10.05 \u00b0C<\/li>\n<li>Humidity accuracy \u00b10.50 % RH or better<\/li>\n<li>Typical humidity accuracy \u00b10.30 % RH<\/li>\n<li>PID controller<\/li>\n<li>Temperature stability 0.05 \u00b0C<\/li>\n<li>Humidity stability 0.10 % RH at 23 \u00b0C<\/li>\n<li>Temperature uniformity 0.10 \u00b0C<\/li>\n<li>Humidity uniformity 0.30 % RH at 23 \u00b0C<\/li>\n<li>Temperature resolution 0.01 \u00b0C<\/li>\n<li>Humidity resolution 0.01 % RH<\/li>\n<li>Calculated dew point with 0.01 \u00b0C resolution<\/li>\n<li>Automatic Ramp and Soak functions<\/li>\n<li>Three automatically switching desiccant containers<\/li>\n<li>Carbon fiber calibration chamber<\/li>\n<li>USB interface<\/li>\n<li>Up to 12 sensor ports<\/li>\n<\/ul>\n<p>The specifications are based on the current documentation from GEO Calibration.<\/p>\n<h2>Technical Data<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>GEO Calibration Hygro Max<\/th>\n<\/tr>\n<tr>\n<td>Manufacturer<\/td>\n<td>GEO Calibration<\/td>\n<\/tr>\n<tr>\n<td>Model<\/td>\n<td>Hygro Max<\/td>\n<\/tr>\n<tr>\n<td>Instrument type<\/td>\n<td>Humidity and Temperature Calibrator<\/td>\n<\/tr>\n<tr>\n<td>Temperature range<\/td>\n<td>0 \u00b0C to 60 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Humidity range at 18 \u00b0C<\/td>\n<td>1 % to 95 % RH<\/td>\n<\/tr>\n<tr>\n<td>Humidity range at 23 \u00b0C<\/td>\n<td>1 % to 99 % RH<\/td>\n<\/tr>\n<tr>\n<td>Humidity range at 28 \u00b0C<\/td>\n<td>1 % to 95 % RH<\/td>\n<\/tr>\n<tr>\n<td>Humidity range at 30 \u00b0C<\/td>\n<td>1 % to 80 % RH<\/td>\n<\/tr>\n<tr>\n<td>Humidity range at 40 \u00b0C<\/td>\n<td>1 % to 60 % RH<\/td>\n<\/tr>\n<tr>\n<td>Humidity range at 50 \u00b0C<\/td>\n<td>1 % to 50 % RH<\/td>\n<\/tr>\n<tr>\n<td>Temperature accuracy<\/td>\n<td>\u00b10.1 \u00b0C or better<\/td>\n<\/tr>\n<tr>\n<td>Typical temperature accuracy<\/td>\n<td>\u00b10.05 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Humidity accuracy<\/td>\n<td>\u00b10.50 % RH or better<\/td>\n<\/tr>\n<tr>\n<td>Typical humidity accuracy<\/td>\n<td>\u00b10.30 % RH<\/td>\n<\/tr>\n<tr>\n<td>Temperature stability<\/td>\n<td>0.05 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Humidity stability<\/td>\n<td>0.10 % RH at 23 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Temperature uniformity<\/td>\n<td>0.10 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Humidity uniformity<\/td>\n<td>0.30 % RH at 23 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Temperature resolution<\/td>\n<td>0.01 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Humidity resolution<\/td>\n<td>0.01 % RH<\/td>\n<\/tr>\n<tr>\n<td>Control<\/td>\n<td>PID<\/td>\n<\/tr>\n<tr>\n<td>Chamber material<\/td>\n<td>Carbon fiber with aluminum and EVA insulation<\/td>\n<\/tr>\n<tr>\n<td>Geometric chamber volume<\/td>\n<td>21 liters<\/td>\n<\/tr>\n<tr>\n<td>Usable working volume<\/td>\n<td>Approx. 17 liters<\/td>\n<\/tr>\n<tr>\n<td>Sensor ports<\/td>\n<td>Up to 12<\/td>\n<\/tr>\n<tr>\n<td>Interface<\/td>\n<td>USB<\/td>\n<\/tr>\n<tr>\n<td>Power supply<\/td>\n<td>100 to 260 VAC, 50\/60 Hz<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>Approx. 50.8 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Why Choose the GEO Calibration Hygro Max?<\/h2>\n<p>The <strong>GEO Calibration Hygro Max<\/strong> combines a wide operating range, high accuracy, a large calibration chamber and extensive automation capabilities.<\/p>\n<p>A particularly notable feature is the humidity range of up to <strong>1 % to 99 % RH at 23 \u00b0C<\/strong>. Combined with a temperature range from <strong>0 \u00b0C to 60 \u00b0C<\/strong>, numerous calibration points can be realized with a single system.<\/p>\n<p>The humidity accuracy of <strong>\u00b10.50 % RH or better<\/strong> makes the system suitable for demanding calibration tasks. At the same time, the large carbon fiber chamber allows multiple sensors or data loggers to be accommodated simultaneously.<\/p>\n<p>For laboratories with high throughput requirements, the automatic calibration sequences are particularly useful. Ramp and Soak functions and the automatic desiccant system reduce the need for manual intervention.<\/p>\n<p>Thanks to the three separately controlled desiccant containers, long calibration programs can be performed efficiently. The system is therefore particularly suitable for automated applications and the calibration of larger quantities of data loggers.<\/p>\n<h2>Typical Calibration Applications with the GEO Calibration Hygro Max<\/h2>\n<p>The GEO Calibration Hygro Max is suitable for a wide range of professional humidity and temperature calibration applications.<\/p>\n<p>Typical devices under test include humidity probes, hygrometers, temperature and humidity sensors, humidity transmitters, data loggers and recording instruments.<\/p>\n<p>The large chamber allows multiple devices under test to be calibrated simultaneously under identical environmental conditions. An internal insert is specifically designed for calibrating larger quantities of data loggers.<\/p>\n<p>In a typical comparison calibration, the device under test and a suitable reference are operated within the same controlled environment. Once the desired humidity and temperature values have been reached and stabilized, the measurement values can be compared. Automatic setpoint sequences can then be used to process multiple calibration points.<\/p>\n<p data-pm-slice=\"1 1 []\">europascal supports you in selecting suitable systems for professional humidity and temperature calibration and also provides metrological traceability for your measuring instruments. Further information can be found at the europascal calibration services.<\/p>\n<p><a href=\"https:\/\/europascal.de\/marke\/geo-calibration\/\">More products from GEO Calibration can be found here.<\/a><\/p>\n<p>Manufacturer information about the <strong>GEO Calibration Hygro Max<\/strong> can be found on the official <a href=\"https:\/\/www.geocalibration.com\/\" target=\"_blank\" rel=\"noopener\">GEO Calibration website<\/a>.<\/p>\n<p><a class=\"download-datasheet\" href=\"#\" data-pdf=\"https:\/\/europascal.de\/wp-content\/uploads\/2026\/07\/Geo-Calibration-Hygro-Max-Humidity-Generator-Calibrator.pdf\"> <span style=\"color: #0000ff;\"><strong><em>Download Datasheet<\/em><\/strong><\/span> <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Der <strong data-start=\"13881\" data-end=\"13910\">GEO Calibration Hygro Max<\/strong> ist ein hochpr\u00e4ziser Feuchte und Temperaturkalibrator f\u00fcr professionelle Laboranwendungen. Das System bietet einen Temperaturbereich von <strong data-start=\"14048\" data-end=\"14066\">0 \u00b0C bis 60 \u00b0C<\/strong> und erreicht bei 23 \u00b0C einen Feuchtebereich von <strong data-start=\"14115\" data-end=\"14134\">1 % bis 99 % rF<\/strong>. Die Systemgenauigkeit betr\u00e4gt \u00b10,1 \u00b0C oder besser f\u00fcr Temperatur und \u00b10,50 % rF oder besser f\u00fcr relative Feuchte. Eine gro\u00dfe Carbonfaser Kammer, automatische Ramp und Soak Funktionen sowie drei automatisch umschaltende Trockenmittelbeh\u00e4lter machen den Hygro Max besonders geeignet f\u00fcr anspruchsvolle und automatisierte Kalibrierungen.<\/p>\n","protected":false},"featured_media":3185,"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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