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Many products emit inflammable substances. Combined with air, these substances can develop with air a gas mixture, which is explosive. In order to prevent such an atmosphere that will cause an explosion, special precautions need to be taken.
For such applications, Weiss offers the WT/WK-II 2 G EEx IIB T3 (ex-proof test chamber) series, which enables tests to be carried out in a potentially explosive test environment within the test chamber.

Product Features

  • The explosion resistant measures were examined by the “TÜV Nord CERT GmbH & Co. KG”
  • For the purposes of assessment, the 94/9/EG (ATEX 95) regulations were applied. Weiss received the design certification
  • The units are designed for the performance of extreme climate values (e.g. long term tests at 85 °C/85 % RH).
  • Extreme installation conditions – trouble-free operation can be guaranteed at ambient temperatures of up to 35 °C.
  • Optimum air guidance and temperature distribution – better than ±1.5 K spatially guaranteed

Standard Version

  • CE-Certificate of design according to ATEX 95 (TÜV 10 ATEX 56193x)
  • Door contact switch with automatic lock
  • Door frame heater, explosion proof
  • Digital measuring and control system S!MPAC*
  • 8“ TFT color touch panel, fitted at the front bracket
  • CONTROLPAD in the door for actual value display
  • Ethernet interface
  • USB interface
  • Condensation protection with dehumidifier coil to prevent condensation on the specimen
  • 1 stainless steel port approx. 50 mm, positioned in left side wall
  • 1 stainless steel port approx. 125 mm, positioned in right side wall
  • Digitally adjustable high/low temperature fuse with separate, intrinsically safe sensor
  • 1 shelf (stainless steel)
  • Air-cooled refrigeration unit with environment-friendly refrigerants
  • Temperature controlled steam humidifier
  • Adjustable, vibration absorbing feet
  • Indirect heating of test space by heat transfer oil in a closed circuit
  • Temperature sensor intrinsically safe by isolation transformer
  • 4 digital inputs and outputs
  • Specimen fuse and switch-off
  • Calibration of 2 temperature values (+23 °C and +80 °C)

Additional Options

  • Self-cleaning psychometric humidity sensor
  • Condensate drain, closed by syphon
  • Water storage tank including level indicator and automatic water supply
  • Purging device for humidification and water
  • Calibration of 2 climate values (23 °C/50 % RH and 95 °C/50 % RH)

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