The air conditioning pro set for cleanroom technology
For the qualification and validation of the high quality standard of production systems in cleanrooms, a defined process climate must be guaranteed. Air exchange and with it the flow or air are here directly related to air temperature and air humidity. Targeted air flows create defined positive pressures which hinder contamination from outside. Measurement technology from Testo has proved ideal for the monitoring of the process climate. The reference measuring instrument testo 400 offers the possibility of connecting 2 probes for recording measurement data. The measuring instrument can be used for monitoring measurements on site or for long-term measurements with the integrated measurement value store (up to 500,000 measurement data). Differential pressure monitoring with the 100 Pa probe The Testo 100 Pa probe with an accuracy of ±(0.3 Pa + 0.5 % of m.v.) is the ideal solution. Positional dependencies are completely eliminated thanks to the revolutionary double-membrane technology, and the temperature compensation means that temperature fluctuations have no influence on the measurement result. Accurate air temperature measurement In combination with the precision air probe (Pt100 Class B 1/10) the testo 400 achieves a system accuracy of 0.1 °C and a resolution of 0.01 °C. Accurate air humidity measurement The task is the exact monitoring of air humidity fluctuations with an accuracy of up to ±1 %RH. The testo 400 sets new standards regarding accuracy and long-term stability. The worldwide inter-laboratory test with the patented humidity sensor at leading international institutes confirms this. Measurement of optimum air input With thermal, vane or Pitot tube measurement, the testo 400 offers all technologies for the measurement of flow velocity. A calibration accuracy of 0.5 % of the measurement value is guaranteed by the first DKD laboratory for flow velocity accredited by the PTB. Measurement of laminar flow The probe 0635 1047 for checking laboratory air exhausts and for laminar flow measurements is new. Due to the optimum flow impact with a directionally dependent measurement within a possible twist angle of 20° and an accuracy of± (0.02 m/s +5 % of measurement value), the probe is optimum for the measurement of laminar flow. Stationary measurement transmitters Monitoring is carried out with a current/voltage cable (0 to 20 mA, 0 to 1 V, 0 to 10 V) and offers the possibility of combining other measurement parameters.
|