ystem generates controlled relative humidity conditions and provides a stable environment for the calibration and verification of humidity sensors, hygrometers, transmitters and reference probes.
The GEO Calibration Model 2000 SP is particularly suitable for applications where stable, reproducible and accurately controlled humidity conditions are required. By generating defined relative humidity values, the calibrator enables comparison measurements between a reference instrument and the device under test.
Unlike simple fixed-point humidity solutions, the Model 2000 SP allows different humidity setpoints to be generated within one calibration system. This makes it possible to evaluate humidity sensors at several points across their measurement range and obtain considerably more information about their measurement characteristics.
The system is therefore particularly interesting for professional calibration laboratories, industrial quality assurance, research and development and companies that regularly calibrate or verify humidity measuring equipment.
At europascal, you receive professional solutions for humidity and temperature calibration. We can assist you in selecting a suitable humidity calibrator, reference probe and accessories for your individual calibration requirements.
For regular calibration and metrological traceability of humidity and temperature measuring instruments, europascal also provides a professional Calibration Service.
Your Benefits at a Glance
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Precision humidity calibrator
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Controlled generation of relative humidity
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Designed for professional calibration applications
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Suitable for laboratory use
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Stable and reproducible humidity conditions
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Multiple humidity calibration points possible
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Suitable for comparison calibration
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Calibration of humidity sensors
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Calibration of hygrometers
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Calibration of humidity transmitters
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Suitable for reference probes
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Suitable for environmental monitoring sensors
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Professional solution for quality assurance
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Suitable for research and development
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Efficient calibration of multiple humidity instruments
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Controlled calibration environment
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Suitable for demanding humidity metrology
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Professional solution for calibration laboratories
Precision Humidity Calibration
The GEO Calibration Model 2000 SP is designed for professional humidity calibration.
Relative humidity is an important measured quantity in numerous industrial, scientific and laboratory applications. Reliable humidity measurements are essential wherever environmental conditions can influence products, processes or measurement results.
Typical applications can be found in:
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Calibration laboratories
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Pharmaceutical production
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Medical technology
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Food production
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Storage and logistics
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Environmental monitoring
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HVAC systems
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Cleanrooms
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Process industries
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Research laboratories
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Quality assurance
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Production monitoring
For these applications, humidity sensors need to be checked and calibrated regularly.
The GEO Calibration Model 2000 SP provides the controlled humidity environment required for these tasks.
Controlled Relative Humidity Generation
A professional humidity calibration requires defined and stable environmental conditions.
The GEO Calibration Model 2000 SP generates controlled relative humidity values within its calibration environment.
The device under test and a suitable reference probe can be exposed to the same humidity condition. After sufficient stabilization, the indication of the device under test can be compared with the reference value.
The humidity setpoint can then be changed and the procedure repeated.
This enables a complete multipoint calibration rather than a simple check at one humidity level.
Multipoint Humidity Calibration
Humidity sensors can show different deviations at different points within their measurement range.
For this reason, checking a sensor at only one relative humidity value provides limited information about its overall performance.
The GEO Calibration Model 2000 SP enables several controlled humidity points to be generated sequentially.
A typical calibration can include:
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Low relative humidity
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Medium relative humidity
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High relative humidity
Additional calibration points can be selected according to the sensor specification, intended application and required calibration procedure.
This allows the measurement characteristics of the device under test to be evaluated over a wider portion of its operating range.
Comparison Calibration
The GEO Calibration Model 2000 SP is particularly suitable for comparison calibration.
During a comparison measurement, a calibrated reference sensor and the device under test are exposed to the same environmental conditions.
Once the required humidity condition has stabilized, the values indicated by both instruments are recorded and compared.
The deviation can then be calculated from the difference between the indication of the device under test and the reference value.
This procedure can be repeated at several humidity setpoints.
For professional calibration, the complete measurement uncertainty must also take into account factors such as:
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Reference instrument uncertainty
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Stability of the generated humidity
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Uniformity within the calibration environment
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Resolution of the instruments
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Repeatability
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Temperature influence
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Position of the sensors
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Stabilization time
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Characteristics of the device under test
Suitable for Professional Calibration Laboratories
The GEO Calibration Model 2000 SP is particularly suitable for laboratories that regularly calibrate humidity measuring equipment.
A controlled humidity generator offers significant advantages compared with individual fixed-humidity references when several instruments or several calibration points need to be processed.
The calibration procedure can be standardized and repeated using defined setpoints.
This is especially useful for laboratories operating according to documented quality and calibration procedures.
Typical users include:
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Accredited calibration laboratories
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In-house calibration laboratories
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Quality assurance departments
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Testing laboratories
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Research institutes
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Manufacturers of humidity sensors
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Pharmaceutical companies
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Environmental monitoring specialists
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Service organizations
Calibration of Humidity Sensors
Humidity sensors are available in many different designs.
The GEO Calibration Model 2000 SP can be used as a controlled calibration environment for suitable humidity probes and measuring instruments.
Typical devices under test include:
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Relative humidity probes
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Digital hygrometers
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Humidity transmitters
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Humidity sensors
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Environmental monitoring sensors
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Data logger probes
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HVAC sensors
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Building automation sensors
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Process humidity sensors
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Laboratory hygrometers
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Reference humidity probes
The physical dimensions and design of the individual sensor must be compatible with the calibration setup.
Importance of Temperature in Humidity Calibration
Relative humidity is strongly dependent on temperature.
A change in temperature can result in a significant change in relative humidity even if the absolute amount of water vapor remains unchanged.
For this reason, temperature must always be considered when performing precise humidity calibration.
The temperature of the reference sensor and device under test should be sufficiently stable and representative of the conditions inside the calibration environment.
Temperature gradients can otherwise contribute significantly to the measurement uncertainty.
This is particularly important when high-accuracy humidity probes are being calibrated.
Stable Calibration Conditions
A reliable humidity calibration requires sufficient stabilization.
After a new humidity setpoint has been selected, the calibration system, reference sensor and device under test need sufficient time to reach equilibrium.
The required stabilization time depends on several factors, including:
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Humidity change
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Temperature conditions
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Sensor construction
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Probe dimensions
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Filter materials
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Sensor response time
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Calibration chamber configuration
Measurement values should only be recorded once sufficiently stable conditions have been achieved.
Applications in Quality Assurance
The GEO Calibration Model 2000 SP is not limited to external calibration laboratories.
Industrial companies can also use the system for internal quality assurance and measuring equipment monitoring.
Humidity sensors used in production processes or environmental monitoring systems can be periodically checked against a calibrated reference.
This can help identify sensor drift before it has a significant impact on production processes or product quality.
Typical applications include:
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Incoming inspection
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Periodic sensor verification
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Intermediate checks
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Measuring equipment monitoring
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Process sensor verification
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Laboratory sensor verification
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Environmental monitoring systems
Humidity Calibration in Pharmaceutical Applications
Humidity measurement plays an important role in pharmaceutical production, storage and laboratory environments.
Environmental monitoring systems often use numerous humidity and temperature sensors distributed throughout production areas, laboratories and storage facilities.
These sensors require regular verification and calibration.
The GEO Calibration Model 2000 SP provides a controlled environment in which suitable humidity sensors can be compared with a traceable reference instrument.
This supports systematic monitoring of humidity measurement equipment within a quality management system.
Environmental Monitoring
Environmental monitoring systems are used in laboratories, warehouses, production facilities and clean environments.
These systems frequently measure both temperature and relative humidity.
Reliable humidity measurement is essential because deviations can affect products, processes and storage conditions.
The GEO Calibration Model 2000 SP can be used to verify humidity sensors used in these monitoring systems.
Regular comparison against a calibrated reference can help identify measurement drift and ensure reliable environmental data.
Calibration of Humidity Transmitters
Industrial humidity transmitters frequently provide an electrical output signal such as:
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4–20 mA
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Voltage
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Digital communication
During calibration, the sensor element is exposed to the controlled humidity condition while the transmitter output is measured separately.
The GEO Calibration Model 2000 SP provides the controlled humidity environment required for the sensor portion of this measurement chain.
Suitable electrical measurement equipment can then be used to evaluate the transmitter output.
This enables the complete humidity measurement chain to be checked.
Advantages over Fixed Humidity References
Fixed humidity references can be useful for individual verification points.
However, professional calibration often requires several different humidity values.
A controlled humidity calibrator such as the GEO Calibration Model 2000 SP offers greater flexibility because several setpoints can be generated with the same system.
This provides several advantages:
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Multiple calibration points
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Reproducible test conditions
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Efficient calibration sequences
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Reduced handling between calibration points
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Flexible selection of humidity values
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Suitable environment for comparison measurements
For laboratories processing many humidity sensors, this can significantly simplify the calibration workflow.
Technical Highlights
The GEO Calibration Model 2000 SP is designed for professional humidity calibration and comparison measurements.
Important characteristics include:
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Controlled relative humidity generation
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Precision humidity calibration
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Stable calibration environment
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Multipoint calibration capability
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Comparison calibration with reference sensors
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Suitable for humidity probes
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Suitable for hygrometers
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Suitable for humidity transmitters
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Suitable for environmental monitoring sensors
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Laboratory-oriented design
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Suitable for quality assurance
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Suitable for measuring equipment monitoring
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Professional solution for humidity metrology
Typical Calibration Setup
A typical calibration setup with the GEO Calibration Model 2000 SP consists of:
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GEO Calibration Model 2000 SP humidity calibrator
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Calibrated reference humidity sensor
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Device under test
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Suitable readout for the reference sensor
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Data acquisition or documentation system
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Electrical measuring instrument if a transmitter output is being tested
The reference sensor and device under test are positioned so that both experience comparable humidity and temperature conditions.
The required humidity setpoint is selected and sufficient stabilization time is allowed.
The measurement values are then recorded and evaluated.
Measurement Uncertainty
For high-quality humidity calibration, the measurement uncertainty of the complete calibration setup must be evaluated.
The humidity generator itself is only one component of the uncertainty budget.
Relevant contributions can include:
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Calibration uncertainty of the reference sensor
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Reference sensor resolution
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Reference sensor stability
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Humidity stability
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Spatial humidity uniformity
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Temperature stability
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Temperature gradients
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Device under test resolution
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Device under test repeatability
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Sensor positioning
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Stabilization effects
A professional uncertainty budget combines these contributions according to the applicable calibration procedure.
europascal can support laboratories with suitable reference equipment and professional calibration services.
Why Choose the GEO Calibration Model 2000 SP?
The GEO Calibration Model 2000 SP provides a professional solution for laboratories and industrial users requiring controlled and reproducible humidity conditions.
Compared with simple single-point humidity references, the calibrator allows several relative humidity setpoints to be generated using one system.
This enables more comprehensive evaluation of humidity sensors and measuring instruments across their operating range.
The system is particularly useful for calibration laboratories, quality assurance departments, research facilities and companies operating large numbers of humidity sensors.
Its controlled calibration environment supports comparison measurements using a traceable reference sensor and provides a practical basis for professional multipoint humidity calibration.
At europascal, we can assist you in selecting the appropriate GEO Calibration humidity calibrator, reference sensor and accessories for your application.
For professional calibration and metrological traceability of humidity sensors, hygrometers, transmitters and other measuring instruments, use the europascal Calibration Service.
Additional measurement and calibration solutions are available through the europascal English homepage.
Discover more GEO Calibration products and calibration solutions from europascal.
Manufacturer information about the GEO Calibration Model 2000 SP is available from GEO Calibration.
