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473-SH2 Dew Point Mirror

Overview

The 473-SH2 is a chilled mirror dew point hygrometer with a cable mounted measuring head with an integrated sample flow control fan and high precision temperature measurement.  It is ideal for use in climatic chambers or humidity generators where it functions as a calibration transfer standard for dew/frost point, relative humidity and temperature.

The 473-SH2 includes precise measurement of temperature with a 2 x 100 mm platinum resistance thermometer (PRT) that can be connected directly to the SH2 measuring head, or to the 473 display.

FEATURES

  • Cable mounted dew point mirror
  • Sample gas flow fan
  • Integrated temperature probe
  • User replaceable optical components
  • Easy mirror access for cleaning
  • Optional barometric pressure measurement

Features

  • Cable mounted dew point mirror
  • Sample gas flow fan
  • Integrated temperature probe
  • User replaceable optical components
  • Easy mirror access for cleaning
  • Optional barometric pressure measurement

Key Specifications

Measuring Ranges:
Frost/Dew Point -20…+70 °C
Relative humidity 5…99 %rh *
Temperature -50…+100 °C **

Accuracy:
Frost/Dew point ≤ ± 0.1 °C
Temperature ≤ ± 0.07 °C

Reproducibility:
Frost/Dew point ≤ ± 0.05 °C
Temperature ≤ ± 0.03 °C

 

* Please note the operating conditions: The measuring head as well as the connectors must be operated under non-condensing conditions.

** The maximum temperature of the SH2 measuring head is 80°C, so to measure temperature up to 100 °C requires the temperature probe to be cable mounted.

Typical Applications

  • Climatic chamber validation
  • RH generator transfer standard
  • Calibration reference
  • Engine Test Cells
  • Process validation

 

MBW Calibration
Process Insights
Seminarstrasse 55/57
CH-5430 Wettingen
Switzerland

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