Sierra Instruments 640i QuadraTherm VTP Thermal Mass Flow Meter / Insertion Flow Meter designed for industrial gas-flow measurement.
The VTP configuration incorporates measurement of mass-flow velocity, temperature and pressure, with three linear 4–20 mA outputs. Sierra documentation identifies the 640i as an insertion thermal mass flow meter and specifically lists the VTP configuration and its associated output options.
The Sierra 640i is an industrial insertion thermal mass flow meter intended for gas-flow measurement. The VTP configuration adds pressure measurement and provides three analog 4–20 mA outputs for mass-flow velocity, temperature and pressure. Sierra documentation specifies the 24 VDC input option as P2, the three-output configuration as V6, and the MP4 pressure option as 500 psia
Sierra 640i VTP QuadraTherm thermal mass flow meter gas flow meter insertion flowmeter 24VDC 4-20mA 500PSI MP4 industrial flow sensor
Any import duties, VAT, customs fees, or local taxes imposed by your country's authorities are the sole responsibility of the buyer. These charges are not included in the product price or shipping fees.
We accept all payment methods approved by eBay. Orders are prepared and dispatched only after successful payment verification.
Every item undergoes a quality inspection before shipment and is professionally packed using secure packaging materials to ensure it reaches you safely.
We ship worldwide through reliable courier services. Once your order has been dispatched, a tracking number will be provided so you can monitor your shipment until delivery.
Returns are accepted within 30 days of the delivery date. Items must be returned in their original, unused condition with all included accessories and packaging. Return shipping costs are the responsibility of the buyer unless otherwise specified.
All product names, trademarks, logos, and brand identities are the property of their respective owners. They are referenced solely for product identification and compatibility purposes. We operate as an independent reseller and are not affiliated with or endorsed by any manufacturer unless explicitly stated.
✔ Genuine Quality Products
✔ Professional & Secure Packaging
✔ Prompt Worldwide Shipping
✔ Dedicated Customer Assistance
Shop with confidence—your satisfaction is at the heart of everything we do.