TELEDYNE HASTINGS INSTRUMENTSEvery whereyou look” HFM-201 Flow Meter HFC-203 Flow Controller MEDIUM CAPACITY FLOWMETERS AND CONTROLLERS FEATURES • ±1% full scale accuracy1 • Input Power +/- 15 VDC or +24 VDC (specify when ordering) • Available flow ranges: 0-25 slm to 0-1000 slm (N2 Equivalent) • NIST Traceable Calibration Certificate APPLICATIONS • Leak testing • Flame Spray • Aerospace • Excellent Stability • Proven Reliability • Outstanding Zero Stability The Teledyne Hastings Instruments (THI) Model HFM Mass Flowmeter and HFC Mass Flow Controller represent a culmination of over 65 years of experience in designing and manufacturing reliable, high quality mass flow instruments. The HFM/HFC 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. The HFC also features a two-stage, pilot-operated control valve. All of these standard features, when coupled with the instrument’s inherent linear response to flow changes and THI’s long-proven reputation for quality, result in the finest flowmeters and flow controllers available today. TELEDYNE HASTINGS INSTRUMENTS Everywhereyoulook"

1 See Product Manual for critical information on instrument accuracy and the use of GCFs (gas conversion factors). Stated accuracy is for nitrogen or other gas specific calibration and use with this gas only. Specifications and Standards Optional Features Fittings -VCR® VCO® NPT Swagelok®, Seals -Kalrez® Neoprene Buna-N Enhanced response time 4-20 mA converters Cleaned for Oxygen service Accessories Power Supplies available with: Integral Flow Totalizer Alarm Set Points Interconnecting cables THCD-100 Power Supply & Display Hastings Instruments reserves the right to change or modify the design...

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www.teledyne-hi.com Model No. HFM-201 HFC-203 Circuit Board Circuit Board Working Pressure Range Information for all Instruments Each calibration will require the following information: Range Flow Units Gas For the HFC Instruments also Upstream Pressure (maximum & minimum) Downstream Pressure (maximum & minimum) Does the downstream pressure change with flowrate? Y/N 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 TELEDYNE HASTINGS INSTRUMENTS A Teledyne Technologies Company PB-140B_12/16 ©...