Wescor's sample chamber, model C-52, can measure the water potential of solutions, small soil or leaf samples, and leaf discs. Due to the solid aluminum housing, the C-52 provides highly accurate water potential measurements without the need for a constant temperature bath.
The C-52 must be connected to a Wescor water potential instrument such as the PSYPRO, HR-33T, or CR7 for operation.
The Sample Chamber measures water potential of small samples in the laboratory or in the field without requiring a constant temperature bath. A precision thermocouple transducer in an internal chamber functions
either as a psychrometer (wet bulb depression method), or as a hygrometer (dew point depression method) depending upon the type of readout equipment employed. Researchers have reported exceptional ease and accuracy using this
chamber, resulting in more and better data from field and/or laboratory research. The instrument is precision machined and expertly assembled to assure accuracy and precise operation. Each unit is individually performance
tested before leaving the factory. An all-metal thermocouple mount provides direct thermal contact between the thermocouple and the upper heat sink. This and the solid aluminum housing give more rapid temperature
equilibration and reduced zero offset error. A copper-constantan temperature sensor allows accurate chamber temperature measurements to be made for correction of psychometric readings for Pv
temperature correction when large temperature changes are
encountered.
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