Wind Probe LLC

Model 100 Intrinsically Safe Air Flow Sensor

At Wind-Probe LLC, we've done our best to create a quality high temperature air flow sensor system suitable for harsh environments such as resin curing ovens.  Our Model 100 sensor system has been certified for Intrinsically Safe operation by FM Approvals.

This instrument measures air flow in large curing ovens with hazardous environments.  Up to now it was impossible to measure air flow in ovens used to manufacture carbon composite honeycomb materials.  The reason for this was the gases given off at high temperature could be ignited causing fires.  But now Wind Probe LLC’s Model 100 eight channel High Temperature Air Flow Monitor measures air speed and temperature meeting IEC 60079-11 intrinsically safe requirements.  The instrument and its sensors have been certified by FM Approvals for use in hazardous locations such as these types of ovens

The instrument monitors the air flow and temperature of eight independent sensor probes positioned in an oven.  User defined limits can be set for the air flow to enable an alarm when the limits are breached.  A microprocessor linearizes the output signals and reports all the critical parameters.  Tables are loaded during the calibration process to ensure accurate temperature and speeds.  This provides a great deal of flexibility in units of measurement and updating new tables.  The initial target for its application is carbon composite honeycomb curing ovens where the air flow through the honeycombs is critical to the curing process.  Figure 1 shows an actual sensor that would be installed in the oven and figure 2 shows the electronic console that houses the power supply, eight control boards, protection circuits and the acquisition system.

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Figure 1. High Temperature Probe

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Figure 2. Electronic console