140°C triboelectric probe kit and readout module

When mounted downstream of cartridge, bag, or other filters, the triboelectric probe kit allows you to be alerted in case of their malfunction (e.g., cartridge rupture).

This kit can be retrofitted to any chimney and is complete with everything needed to display the dust concentration data and customize various parameters, including alarm thresholds.

KIT COMPOSITION

• n.1 triboelectric dust concentration reading probe
• no.1 microprocessor control module to manage the triboelectric probe and display the detected data.
• n.1 polycarbonate case, IP65, to house the module complete with module fixing flange Dimensions: 160 x 166 x 105mm
• installation, operation and maintenance instructions
• wiring diagrams and certifications ATEX (probe) + CE (all components)

HOW IT WORKS

The dust concentration reading probe exploits the principle of transferring electrical charges carried by dust immersed in gaseous fluid, thanks to an electrode connected to a specific electronic circuitry capable of amplifying the signal. The amount of charge induced on the electrode is proportional to the amount of powder in the gaseous fluid. An increase in the concentration of the powders therefore results in a proportional increase in the signal reaching the microprocessor.

By applying mathematical algorithms, the dust particles are counted individually so that their exact concentration in mg/mc can be calculated. The processed values can be stored internally for future processing, or sent via RS485 serial transmission to an external control unit for further analysis or visualization.

The microprocessor-based triboelectric probe comes pre-calibrated, complete with No. 2 optically isolated open-collector digital outputs, No. 1 RS485 serial output for configuring and/or downloading data, and a set of LEDs for operating mode indications.

UGGESTIONS AND INSTALLATION NOTES

• Sensor length: the probe comes standard with a 250mm long electrode. However, the electrode should be almost as long as the diameter of the chimney to be monitored [about 20mm less]. The electrode extension kit, to be purchased separately, can be cut on site.
• When installing the triboelectric probe in chimneys with a diameter greater than 800mm and an air velocity greater than 12m/s, we recommend installing, on the opposite side of the probe, an insulated support to which the rod can be attached.
• The probe should be installed with a downward tilt of 2° to avoid moisture and/or water stagnation on the insulation.