Model 473-SH2

Perfect FOR CLIMATE CHAMBERS

Cost-Effective Humidity & Temperature Reference Hygrometer

The MBW CALIBRATION™ MODEL 473-SH2™ Dew Point Chilled Mirror Analyzer with a cable mounted measuring head with an integrated sample flow control fan delivers fast, 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 MODEL 473 display.

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

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.
In combination with the T12 multi-channel thermometer, the MODEL 473 is particularly well suited to climatic chamber validation projects.

APPLICATIONS

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

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Data Sheet

Data Sheet FR

Data Sheet DE

Manual

Climatic Chamber Validation

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Measuring Head SH2 Part No. 105001

The SH2 is a flow-through dew point measuring head with a two-stage Peltier element for mirror temperature control. It includes a variable speed fan that maintains a consistent airflow across the mirror. Alternatively, with the fan removed, the SH2 head can also connect to applications using tubing and standard 6 mm or ¼” fittings. It is also supplied with a calibrated temperature probe with 0.5 m and 3 m cables for connection to either the measuring head or the 473 back panel.

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