The pro set for cleanroom technology, testo 400

Defined process ambient condi- tions must be assured for the quali- fication and validation of the high quality standards of production units in clean rooms.Air exchange and the resulting airflow are linked directly to air tempe- rature and air moisture. Specified air flows produce defined positive pressures which prevent the ingress of impurities from outside.Testo’s measurement technologyhas proven to be ideal for testing process ambient conditions.With the testo 400 reference mea-suring instrument, you have the possibility of connecting 2 probes simultaneously. The measuring instrument can then be used to monitor measurements on-site or for long-term measurements thanks to the integrated readings memory with capacity for 500,000 data. Accurate a air m moisture m measurement Ingoing air/VAC->clean room The task at hand is to monitorexactly the fluctuations in air moi- sture with an accuracy of up to ±1%RH. testo 400 sets new stan- dards in terms of accuracy and long-term stability. The worldwide inter-laboratory test with the paten- ted humidity sensor in leading, international institutes confirm the stated values.

Clean room Class D

Measurement o of i ideal a air s supply testo 400, with its thermal, vane and pitot tube measurements, has all the engineering available to mea- sure air flow. A calibration accuracy from 0.5% of the reading is assured thanks to the first PTB accredited DKD laboratory for flow. Insulator Class AOutgoing airIngoing air/VAC->insulator Outgoing air Measuring l laminar f flow The probe 0635 1047 for testing laboratory fume cupboards and for measuring laminar flow is new. Owing to its optimum flow impact characteristics with a direction- independent measurement within a possible twist angle (20°) and an accuracy of ±(0.02 m/s +5 % of reading), the probe is optimally designed for the measurement of laminar flow. testo 400 display during thecalibration of a stationary trans- mitter:Left display half: Referencehumidity probeRight display half: 4-20 outputmeasurement in a transmitter using current/voltage cable (scaling 0-100%RH)

Lab A2

Typical m measurement t tasks: d diffe -

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rential p pressure m monitoring u usingthe 1 100 P Pa p probe

%°C

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The testo 100 Pa probe with an accuracy of ±(0.3 Pa + 0.5 % of the reading) is the ideal solution.Position dependencies are comple-tely eliminated thanks to the revolu- tionary double membrane techno- logy and fluctuations in temperature no longer have any influence on the measured result thanks to tempera- ture compensation.

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Mean Stationary t transmitters The check is carried out using the current/voltage cable (0 to 20 mA, 0 to 1 V, 0 to 10 V) and there is a possibility of integrating additional parameters.
The Pro Set for clean room technology testo 400, multi-functional meas. instr., incl. meas. value storeup to 500,000 readings, VAC-module (determination of volume flow with error calc.), battery, Li-cell and calibration protocol0563 4001Precision pressure probe, 100 Pa (differential pressure)0638 1347Precision air probe , Plug-in head, connection cable 0430 0143or 0430 0145 required 0628 0017Highly accurate reference humidity/temp. probe incl. cal. cert.,Plug-in head, connection cable 0430 0143 or 0430 0145 requi-red 0636 9741Connection cable, length 1.5 m, for probes with plug-in heads0430 0143Connection cable, 5 m long, for probe with plug-in head0430 0145 Accurate a air t temp. m measurement testo 400 achieves a system accu- racy of 0.1°C and a resolution of 0.01°C when used together with the precision air probe (Pt100 Class B 1/10).
Thermal anemometer probe, Ø 10 mm, w. telescopic handle,measures air flow in lab fume cupboards to DIN EN 14175 0635 1047Bendable vane probe (90° bend radius) Ø 100 mm, attachableto handle or telescope0635 9340Pro telescope for plug-in vane probes, length max. 1 m0430 0941Current/voltage cable (±1 V, ±10 V, 20 mA) 0554 0007System case (aluminium) for measuring instrument, probes andaccessories0516 0410ComSoft 3 - Professional with data management0554 0830RS232 cable0409 0178 We recommend: DKD calibration certificates for temperature, humidity, velocity,pressure Checking flow speed using the hot wire probe Part no.: 06351047 Example of layout of a clean room