ISO 14644 airflow tests in clean room-KIMO instruments China

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

Pressure
Velocity
Airflow

PROTECTION AGAINST CONTAMINATION

FLOW EFFICIENCY

APPROPRIATE AIR RENEWAL

METROLOGICAL FOLLOW-UP

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.

PROTECTION AGAINST CONTAMINATION

Pressure module

MPR 500 / MPR 2500 / MPR 10000 / MPR 500 M / MPR 2000 M

Multifunction

AMI 310

Micromanometer

MP 210

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.

FLOW EFFICIENCY

Omnidirectional probe SOM 900

SOM 900

Thermo-hygrometer-anemometer

VT 210

Thermo-hygrometer - Air quality

HQ 210

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.

APPROPRIATE AIR RENEWAL

Airflow cones

Si-K25 - Si-K85

Air Flow Meter

DBM 620

Multifunction

AMI 310

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.

Products and accessories

Air velocity hot wire probes
SFC 300 / SFC 900 / SFC 900 GN / SFC 300 S

Kimo`s hot wire probes measure air velocity and temperature.
Read more
Hygrometry probes
SHR 110 / SHRF 110 / SHR 300 / SHRF 300

Kimo's hygrometry probes measure humidity, dew point, and temperature.
Read more
Air velocity vane probes
SH 14 / SHT 14 / SH 70 / SHT 70 / SHF 70 / SH 100 / SHT 100 / SHF 100

Kimo's vane probes measure air velocity and temperature. They have a variety of measuring ranges depending on the vane diameter.
Read more

In-House

Our two main factories
Our customer service
Our metrology laboratories
Our Research & Development team
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.