TELEDYNE HASTINGS INSTRUMENTS MODELS Range — 25 to 15,000 slm (N2 Equivalent) Accuracy in Nitrogen ±1% of Full scale Modular Construction NIST Traceable Calibration Bulk Gas Handling Furnace Fuel Measurement R&D and Process Flows Leak Testing High Capacity Low Pressure Drop Linear Response Model HFM-200 with LFE (Laminar Flow Element) DESCRIPTION The Teledyne Hastings Instruments (THI) Model HFM Mass Flowmeter represents a culmination of years of experience in designing and manufacturing reliable, high quality mass flow instruments. The HFM Series of flow instruments is based on a modular design. At the heart of each instrument is an insulated thermal transfer sensor which provides enhanced zero stability. This sensor is designed to be removable/ replaceable in the field to virtually eliminate long down time due to clogging. Additionally, the HFM design features an integral filter and an easily replaceable closed loop electronics card.* All of these standard features, when coupled with the instrument’s inherent linear response to flow changes and THIs’ long-proven reputation for quality, result in the finest flow meters and flow controllers available today.

Design Features (cont) Model HFM-200 with LFE THI Model HFM-200 Flow meters with an LFE offer the user fast, accurate measurement of highcapacity gas flows, in ranges from 25 slm up to 15,000 slm. Our laminar flow elements (smoothed, flanged, or threaded) are available in various sizes from 3/8” up to 8”. Used in conjunction with the standard HFM Flowmeter, these units can be combined to measure full-scale flows up to 15,000 slm and feature a typical pressure drop of 4.5” of water at full-scale flow. Fittings – Flanges, Smooth Pipe, Pipe Thread Oxygen Cleaning Accessories Power Supplies/Readouts...

Working Pressure C. Board 01 Standard 02 24 VDC ** Output - 0-20 Ma 01 0-5 Volts (Std) 02 4-20 mA *** Fittings 05 1/4" Elbow O'Rings Viton (std) Kalrez Neoprene Buna-N Working Pressure 01 500 psig (Std) Calibration Type NIST 5 point (Std) NIST 10 Point NIST 20 Point Curve Fit No RF Rejection - 0 -5 volts only Not available with fast response

Laminar-Selection Chart Range Information Each calibration will require the following information: Range: Flow Units: *Std Conditions: * For volumetric units the standard temperature and pressure of the unit is also required 0°C & 760 Torr will be used when other values are not specified. * * * ** No RF Rejection - 0 -5 volts only *** Not available with fast response Fittings 01 NPT Male 02 Smooth 03 Flanges * Telephone: (757) 723-6531 Toll Free: (800) 950-2468 Fax: (757) 723-3925 World Wide Web: http://www.teledyne-hi.com E-mail: [email protected] P.O. Box 1436 Hampton, VA 23661...