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Digital pressure gauge for refrigeration performance monitoring

Keller’s digital pressure gauge for refrigeration systems.

Keller-dV2-CoolThe exact vapour pressure curves of five different refrigerants are stored in Keller’s dV-2 Cool digital pressure gauge.  This enables the prevailing cooling temperatures in closed cooling circuits to be derived and displayed by the integrated microprocessor.  Two versions of the Keller’s dV-2 Coo digital pressure gauge with stainless steel measuring cell are available: for absolute pressures within the ranges of -1 bar to 40 bar, and -1 bar to 80 bar.  These measure within the compensated pressure range of 0 °C to 50 °C with extreme accuracy and with a tole­rance of ± 0.1 %FS. Because of the high resolution of 1 mbar and 2 mbar, the dV-2 Cool pressure gauges can also be used for measuring leaks in a vacuum.

The measurements are clearly legible on the LCD display, which can be rotated to the best viewing direction after installation. Depending on the environment, a special rubber surround is available for protection.   Two buttons (Select/Enter) are available for operating the instrument and setting parameters (e.g. selecting the type of refrigerant). Users can also switch between units of bar/°C and psi/°F. After switching on, the battery-operated instrument remains active for a period of 15 minutes and then goes into standby mode. Continuous measurements can be made for approximately two months without changing the batteries.

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