ELDRIDGE PRODUCTS EPI Master-Touch™ Thermal Flow Meter 8650MPNH-SSS-133-AC115-N2

Description

ELDRIDGE PRODUCTS EPI Master-Touch™ Series Flow Meter 8650MPNH-SSS-133-AC115-N2
This is a gently used NITROGEN (N2) Flow Meter. It powers up fine, but it will need calibration as indicated. It could be a great spare if you already have one of these. It comes with the meter (including the 115 Volt power cable), stainless tubing as shown and 3 valves.
Thermal mass flow meters use the principle of convective heat transfer to directly measure mass flow. EPI’s proprietary thermal mass flow sensors use two ratiometrically-matched, reference-grade platinum Resistance Temperature Detectors (RTDs). The platinum sensing element wire is encapsulated in a 316 Stainless Steel sheath or, if specified, a Hastelloy C sheath. Our microcontroller operated smart sensor technology preferentially heats one RTD; the other RTD acts as the temperature reference. The process gas flow dissipates heat from the first RTD, causing an increase in the power required to maintain a balance between the RTDs. This increase is directly related to the gas molecular rate of flow. Our sensors are temperature compensated for a wide process gas temperature range and insensitive to pressure changes, so the output signal is a true mass flow rate signal.
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