Swiss pressure sensing specialist Keller’s first generation of high-resolution digital manometers, the LEO 5, is available from South African process control and instrumentation equipment distributor Instrotech.

With high resolution for accurate measurement, pressure peak analysis and measurement data recording, the LEO 5 can quickly be adopted as an indispensable tool by pneumatic or hydraulic systems. Instrotech notes that undetected pressure spikes are one of the common causes of premature wear and untimely failures in pneumatic and hydraulic systems.

In freshwater systems, for instance, this occurrence is sometimes called water hammer.

The LEO 5, with its pressure peak analysis mode, will sample and record system pressure at a rate of 5 kHz and with 16-bit resolution, enabling the troubleshooter to positively characterise system behaviour.

Instrotech explains that LEO 5 features precise sensor technology, fast, high-resolution signal processing, peak recording and data storage with a time stamp.

Designed for deployment in hostile environments, the LEO 5 features a robust stainless steel housing, a safety glass front, a 16 mm backlit display and capacitive touch controls.

With storage capacity for over 50 000 peak values, including temperature and time stamp figures, data from the LEO 5 is exportable for detailed analysis using the USB interface included.

Further, in its standard measurement mode, the LEO 5 operates at a sampling rate of 2 kHz and has an A-to-D resolution of 20 bits. The LEO 5 line-up includes seven standard full-scale pressure ranges between 3 bar and 1 000 bar. In the temperature range of 0 °C to 50 °C, the total error band (TEB) for pressure is about 0.5% full scale (FS) accuracy. Instrotech explains that, when temperature conditions are stable, the LEO 5 is capable of achieving a TEB of about 0.01% FS accuracy.

The LEO 5 is available with a range of optional features, including a standard radio interface for measurements in inaccessible or mobile locations. Traditional analogue outputs of between 4 mA and 20 mA and 0 V direct current (dc) to 10 Vdc and up to two switch outputs for process control and monitoring can also be provided. Configuration and data transmission take place through a USB or RS485 interface. Additionally, special housing materials, pressure connections and other user-specific options are available, notes Instrotech.