HFM-301/HFC-3030 pages

TELEDYNE HASTINGS
INSTRUMENTS
DESIGN FEATURES
Teledyne Hastings Instruments (THI) products
represent over 60 years of experience in the design and manufacture of mass flow products. The 300 Series is a culmination of this experience with patented technologies that make these the finest flowmeters and controllers available today.
The THI Mass Flow 300 Series meters and controllers are designed to accurately measure mass flow without corrections or compensations for gas pressure and temperature. They are accurate to better than ±1.0% of full scale. THI mass flow instruments do not require any periodic maintenance under normal operating conditions
with clean gases. No damage will occur from the use of moderate overpressures (~500 psi) or overflows. Instruments are normally calibrated with the appropriate standard calibration gas (air & N2), then a gas conversion factor (GCF) is used to adjust the output for the intended gas. Special calibrations for other gases, such as oxygen, helium and argon, are available upon special order.
These products contain a number of features that set them apart from other available instruments: (1) They are inherently linear; no linearization circuitry is employed. Should recalibration in the field be desired (a calibration
standard is required), the customer needs to simply set the zero and span points. (2) The output signal is linear for very large overflows and will not come back on scale when a flow an order of magnitude over the full scale flow rate is measured. (3) The instrument incorporates a removable/replaceable sensor module. (4) The unit has very fast settling times.
Models HFM-301,
HFC-303
FEATURES
• ±1.0% of Full-Scale
Accuracy1
• Rapid Settling Times HFM-301 0.4 sec
HFC-303 2.0 sec
• Range — 25 to 1000 slm (Air Equivalent)
• Operating Pressures to 500 PSI or Higher
• NIST Traceable
Calibration
APPLICATIONS
• Leak Testing • Research
• Vapor Deposition • R&D and Process Flows
• Semiconductor Processes • Pollution Monitoring
• Gas Blending
• Chromatography
HFM-301
HFC-303
MEDIUM CAPACITY FLOWMETERS
AND CONTROLLERS
Power Supplies Available