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Pressure Peak Gauge Keeping Pressure Peaks Under Control

| Editor: Dominik Stephan

A new microprocessor-controlled digital pressure peak gauge polls the value for the pressure variable in a process 5000 times each second: Keller's new Leo 1 can detect much dreaded pressure peaks within pipe systems.

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Leo 1, the microprocessor-controlled digital pressure peak gauge from Keller, polls the value for the pressure variable in a process 5000 times each second. (Picture: Keller AG fuer Druckmesstechnik)
Leo 1, the microprocessor-controlled digital pressure peak gauge from Keller, polls the value for the pressure variable in a process 5000 times each second. (Picture: Keller AG fuer Druckmesstechnik)

The high polling interval helps to detect even extremely short peaks, that are often caused by fast-switching hydraulic valves and pumps, the manufacturer states. With a quick detection, prompt action can be taken to prevent damage due to cavitation or pressure surge. The unit features a two-key operating system that provides access to the entire range of functions: the stored MAX/MIN can be erased and reset to zero, or the device can be switched to continuous mode.

The Leo 1 switches off automatically about 15 minutes after the last key is pressed. When operating in the continuous mode, the battery has sufficient capacity for up to 1400 hours in manometer mode and up to 180 hours in peak value mode. The dual digital display updates twice every second, showing the measured value and the minimum or maximum value attained. In the compensated temperature range from 0 to 50 °C, typical overall accuracy is 0,2% FS (Full Scale). In addition, the Leo 1 has a Zero Tare feature which allows the user to set the zero at any pressure, so the manometer will then always show deviations from the set zero. The unit is available in an IP65 housing with ranges of -1 to 3 bar to 0 to 1000 bar.

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