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Flow rate calibrations

Flow rate calibrations

Flow rate calibrations

Product catalog summary
Overview: The document discusses the calibration of flow rate instruments used in air conditioning and process air systems, emphasizing the importance of regular calibration for ensuring reliable and accurate measurements. It highlights the role of DAkkS and ISO calibrations in maintaining equipment performance.
Calibration Importance: Regular calibration is crucial for maintaining consistent product quality, ensuring occupational health and safety, and protecting the environment, especially when dealing with hazardous materials. Reliable measurements are also essential for optimizing ventilation system processes.
Calibration Facility: Halstrup-walcher operates a DAkkS-accredited calibration laboratory in accordance with DIN EN ISO / IEC 17025. The facility is designed for calibrating flow rate measurement systems with a maximum flow velocity of 10 m/s, suitable for air conditioning and process air ducts.
Features of the Calibration Facility:
  • Volume and mass flow measurements based on the differential pressure principle.
  • Full cross-section duct measurements to avoid point-specific errors.
  • Even air flow generation with multiple measurement points (minimum of 5 for DAkkS calibration).
  • Regulated air volume flow from 25 to 4,500 m³/h and air mass flow from 30 to 5,400 kg/h.
  • Uncertainty of less than 1% of the measured value.
  • Adaptors for duct diameters from 50 to 700 mm available.
  • High precision measurements considering air density.
Calibration Certificates: The DAkkS calibration certificate is internationally recognized and considers all relevant environmental factors. It provides a comprehensive testing procedure with stated uncertainties for each measurement point. ISO factory calibration is faster, with fewer measurement points, suitable for guideline measurements and development purposes.
Calibration Procedures: Calibration involves comparing a calibration object with a defined standard without making adjustments to the instruments. Recalibration is recommended if external changes are made. The procedure is tailored to the duct diameter, calibration object, and measurement requirements.
Additional Services: Halstrup-walcher offers optional programming, linearization, scaling, adjustment, and repair services for their pressure transmitters and measurement systems. They provide express calibration services upon request.
Contact Information: Halstrup-walcher GmbH, Stegener Straße 10, 79199 Kirchzarten, Germany. Tel: +49 (0) 7661 3963-0, Email: [email protected]
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Catalog excerpts

Flow rate calibrations-1

Flow rate calibrations DAkkS and ISO calibrations for instruments used to measure flow rate in air conditioning and process air systems

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Flow rate calibrations-2

Calibration of flow rate instruments Guaranteeing reliable measurements in air ducts Are you involved in the measurement of air flows and consumption in the area of air conditioning and process air technology? As a manufacturer or user of primary elements, volume flow instruments (anemometers, vane probes, thermal probes, etc.) or ventilators, you have to ensure that your equipment is working reliably. Regular calibration is essential if you want your instruments to deliver constant and accurate measurements. These measurements are based on recorded consumption (required volume of air) or providing...

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Flow rate calibrations-3

Calibration procedure Calibration is performed by comparing a calibration object with a defined standard (see graphic). DAkkS calibration is performed in a flow rate calibration laboratory with pre-defined testing procedures and the reference standard. No adjustments are made to the test objects / instruments during a calibration. Recalibration is recommended if (external) adjustments / changes are made. Calibration is precisely adjusted to reflect the duct diameter, calibration object and measurement. It is offered for equipment from all manufacturers. National standard Accredited calibration...

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Flow rate calibrations-4

Laboratory calibration service halstrup-walcher offers a tailor-made calibration service for flow rate (volume  flow / mass flow) in the laboratory (DAkkS / ISO). We have years of experience in the area of DAkkS pressure calibrations. Your calibration Please provide the following information when completing your flow rate calibration enquiry: Sample calibration certificates akkreditiert durch die / accredited by the Deutsche Akkreditierungsstelle GmbH xx olume flow instrument (installed in air ducts), V balometer xx Ventilator fans (ISO calibration only) xx omplete volume flow measurement sections...

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