Particle cleanliness of controlled atmosphere zones
Clean rooms are controlled environments where air quality is a critical parameter, regulated by the ISO 14644 standard. Controlling aeraulic parameters (pressure, velocity, flow) is essential to guarantee the cleanliness of these sensitive areas.
Whether for classification, regular checks, after a failure or a modification of the premises, a large number of measurements must be taken in clean rooms. For one-off and permanent checks, Sauermann has a lot of cutting-edge solutions for measuring air pressure, velocity and airflow.
Parameters to be monitored
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Pressure
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Velocity
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Airflow
Protection against contamination
Protection against contamination
In order to prevent the spread of particles between zones, air pressure control is essential. According to the recommendations of ISO 14644, the differential pressure must be greater than 15 Pa between two differently classified zones.
The tests to be carried out involve the use of micromanometers with a maximum permissible error (MPE) of ±2 Pa or ±0.5% of the measured value. The Kimo 210 and 310 series aeraulic devices are equipped with pressure modules that can achieve a level of precision of ±0.2% Vm ±0.8 Pa over the range -100 to +100 Pa.
AMI 310
L'AMI 310 Kimo mesure en simultané des paramètres tels que la pression, la température (Pt100 et thermocouple), l’humidité, la qualité d’air (CO/CO2), la vitesse d’air, le débit d’air (sondes à hélice et fil chaud), et la tachymétrie.
MP 210
Le micromanomètre MP 210 Kimo mesure la pression, la vitesse et le débit d’air, la température, la tachymétrie, les fuites de gaz et le monoxyde de carbone (jusqu’à 6 mesures simultanées).
Pressure module
Kimo's pressure measuring modules include two pressure inputs and one thermocouple input, offering versatility for various applications. Five models are available to suit different measurement needs.
Flow efficiency
Flow efficiency
In laminar flow rooms, air speed is crucial for keeping the area clean. It is generally between 0.3 and 0.45 m/s for efficient particle sweeping. Tests using a hot-wire probe (SFC300 / SFC900) should be carried out at different points.
The ISO 14644 standard prescribes a minimum number of measuring points depending on the size of the measurement area. It is recommended that the various average time values be recorded. With their hot-wire probes, accessories and user-friendly menus, Kimo portable devices meet all the requirements for the tests to be carried out.
VT 210
Spécialement conçu pour le contrôle des systèmes de ventilation, le VT 210 permet de mesurer la vitesse et le débit d’air, ainsi que la température dans les conduits.
HQ 210
Le HQ 210 Kimo permet de mesurer la teneur en CO2, l'humidité et la température, via son module de condition climatique.
Omnidirectional probe SOM 900
Kimo's stainless steel omnidirectional telescopic probes measure air velocity, hygrometry, and temperature, offering flexible, accurate data collection for a range of environmental and HVAC applications. The telescopic design ensures easy use in varied settings.
Appropriate air renewal
Appropriate air renewal
The air change rate is a key factor that is controlled by accurately measuring the air flow. This factor must be checked by an electronic flow meter such as a balometer, so that it can be easily adapted to all types of vent profiles.
With its five interchangeable hoods of different sizes, the DBM 620 from Sauermann is the ideal tool for carrying out complete surveys. Capable of directly calculating the air change rate, it also measures other important cleanroom parameters such as temperature, humidity and atmospheric pressure.
DBM 620
The DBM 620 Air Flow Meter is a versatile electronic instrument used primarily for taking precise air volume readings from air vents. Its redesigned features optimize air balancing tasks, making it an efficient tool for measuring airflow in various HVAC applications. The device provides accurate readings for air velocity, pressure, and volume, ensuring precise airflow management in commercial and industrial environments.
AMI 310
L'AMI 310 Kimo mesure en simultané des paramètres tels que la pression, la température (Pt100 et thermocouple), l’humidité, la qualité d’air (CO/CO2), la vitesse d’air, le débit d’air (sondes à hélice et fil chaud), et la tachymétrie.
Airflow cones
The Si-K25 and Si-K85 are airflow measurement cones designed for 4'' (100 mm) diameter vane anemometers. These models feature a honeycomb-structured airflow straightener that reduces turbulence for more reliable flow measurement.
The Si-K25 and Si-K85 are perfectly suited to Kimo LV 110 and LV 130, VT 210, MP 210 and AMI 310 anemometers.
The Si-K85 square cone can be used with medium-sized air vents.
The Si-K25 round cone is designed for small and medium-sized round vents.
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Designation |
Si-K25 (28111) |
Si-K85 (28112) |
Flow |
5.9 to 235.4 cfm
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5.9 to 235.4 cfm
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Internal dimensions |
10 15/74’’ diameter
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13 50/64’’ x 13 50/64’’
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External dimensions |
L 11 7/64’’ x W 11 7/64’’ x H 10 35/64’’
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L 14 41/64’’ x W 14 41/64’’ x H 12 56/64’’
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Metrological follow-up
Metrological follow-up
The use of suitable, certified equipment is essential to guarantee the quality of the services provided in these demanding environments. Metrological traceability to national standards of the equipment used is therefore an essential guarantee of reliability.
The connected calibration certificates issued by Sauermann are drawn up in accordance with the FD X07-12 standard governing metrology for businesses. The certifications are carried out in our laboratories and assure users that their measurements are reliable, enabling them to carry out their work with complete confidence.
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45 years of experience
For over 45 years, the Sauermann Group has been designing, manufacturing and marketing products and services dedicated to the HVACR and industrial markets.