Teledyne HFC-303/307 - Manuals

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Manual

Manual Teledyne HFC-303/307

Summary

Page 2 - Manual Print History

Manual: 152-082010 301-305-306_303-307 Series Page 2 of 35 Manual Print History The print history shown below lists the printing dates of all revisions and addenda created for this manual. The revision level letter increases alphabetically as the manual undergoes subsequent updates. Addenda, which a...

Page 3 - Table of Contents

Manual: 152-082010 301-305-306_303-307 Series Page 3 of 35 Table of Contents 1. GENERAL INFORMATION ............................................................................................................................................ 4 1.1. F EATURES .............................................

Page 4 - Information; production line downtime. Calibration is required.; LOW TEMPERATURE DRIFT.; minimize environmental noise pickup.

Manual: 152-082010 301-305-306_303-307 Series Page 4 of 35 1. General Information The Hastings 300 Series high range mass flow meters are designed to accurately measure mass flow at a range between 25 slm and 10000 slm. The Hastings 300 Series high range mass flow controllers are designed to accurat...

Page 6 - Cables; the Hastings web site.

Manual: 152-082010 301-305-306_303-307 Series Page 6 of 35 1.3. Optional 4-20 mA Current Output An option to the standard 0 - 5 VDC output is the 4 - 20 mA current output that is proportional to flow. The 4 - 20 mA signal is produced from the 0 - 5 VDC output of the flow meter. The current loop outp...

Page 12 - Do not assume that all metering valves completely shut; previous formula or read from charts below.

Manual: 152-082010 301-305-306_303-307 Series Page 12 of 35 2.7. Operation The standard instrument output is a 0 - 5 VDC and the signal is proportional to the flow i.e., 0 volts = zero flow and 5 volts = 100% of rated flow. The 4 - 20 mA option is also proportional to flow, 4 mA = zero flow and 20 m...

Page 15 - percentage of the flow rate of the first gas.

Manual: 152-082010 301-305-306_303-307 Series Page 15 of 35 Span Error v s Pre ssure -1.0% -0.8% -0.6% -0.4% -0.2% 0.0% 0.2% 0.4% 0.6% 0.8% 1.0% 0 50 100 150 200 250 300 Pressure(psig) S p an E rr o r ( % r ead in g ) Mean error max min Figure 2-7 2.7.4. Blending of Gases In the blending of two gase...

Page 17 - On the top left of the inlet side of the flow; Control Loop

Manual: 152-082010 301-305-306_303-307 Series Page 17 of 35 of the flow meter signal to within ± 0.001 Volts of the command signal. The command signal will not match the flow signal if there is insufficient gas pressure to generate the desired flow. If the command signal exceeds 5 Volts the controll...

Page 18 - Coefficients; C is the calibration temperature.; Sp

Manual: 152-082010 301-305-306_303-307 Series Page 18 of 35 2.14. Temperature Coefficients As the temperature of the instrument changes from the calibration temperature, errors will be introduced into the output of the instrument. The Temperature Coefficient of Zero describes the change in the outpu...

Page 19 - Theory and Function; the proper selection of the constant value bridge resistors.

Manual: 152-082010 301-305-306_303-307 Series Page 19 of 35 3. Theory and Function 3.1. Overall Functional Description The 300 Series flow meters consist of a sensor, base, shunt, control valve (303/307) and electronic circuitry. The sensor is configured to measure gas flow rate from 25-10000 slm, d...

Page 20 - m C T; temperature, it can be shown that the differential power is:; V V

Manual: 152-082010 301-305-306_303-307 Series Page 20 of 35 ( ) P P m C T T u d p heater ambient − = − • 2 conducted from the upstream and downstream coils to the foam insulation surrounding them is assumed to be equal, based on the symmetry of the sensor construction. Since the sensor tube inlet an...

Page 22 - LQ; necessary flow through the sensor tube.

Manual: 152-082010 301-305-306_303-307 Series Page 22 of 35 ( ) Δ P LQ D Q D K K c e = + + 128 8 4 2 2 4 μ π ρ π The end effects for a typical laminar flow element in air account for approximately 4% of the total pressure drop. For hydrogen, however, which has a density that is about 14 times less t...

Page 24 - optional 4 - 20 mA analog output is available; in lieu of; an output voltage. The addition of a 4 - 20 mA

Manual: 152-082010 301-305-306_303-307 Series Page 24 of 35 3.8. Electronic Circuitry The 300 Series flow meters employs a thermal transfer principle (capillary tube described in section 3.2) to measure the flow through the sensor which is proportional to the total flow through the instrument. The s...

Page 27 - Zero

Manual: 152-082010 301-305-306_303-307 Series Page 27 of 35 4.4. End Cap Removal The end cap on the inlet side must be removed to gain access to shunt assembly. First remove power and shut off the supply of gas to the instrument. Disconnect the fittings on the inlet and outlet sides of the transduce...

Page 28 - Printed Circuit Board and Sensor Replacement; NOTE

Manual: 152-082010 301-305-306_303-307 Series Page 28 of 35 4.5. Printed Circuit Board and Sensor Replacement NOTE : This instrument contains static sensitive PC boards. Maintain static protection when handling the PC boards. In the event that any of the PC boards fail, they are easily removed from ...

Page 29 - Drawings

Manual: 152-082010 301-305-306_303-307 Series Page 29 of 35 5. Outline Drawings 5.1. HFM-301 5.2. HFC-303

Page 32 - shipment; factory for your RMA number before returning any product repair.; TOLL FREE

Manual: 152-082010 301-305-306_303-307 Series Page 32 of 35 6. WARRANTY 6.1. Warranty Repair Policy Hastings Instruments warrants this product for a period of one year from the date of shipment to be free from defects in material and workmanship. This warranty does not apply to defects or failures r...

Page 33 - Liter

Manual: 152-082010 301-305-306_303-307 Series Page 33 of 35 7. Appendix 7.1. Appendix 1- Volumetric versus Mass Flow Mass flow measures just what it says, the mass or number of molecules of the gas flowing through the instrument. Mass flow (or weight per unit time) units are given in pounds per hour...

Page 34 - determined empirically.; GCF; Methods Used to Determine Gas Conversion Factors; Determined empirically at Hastings Instruments

Manual: 152-082010 301-305-306_303-307 Series Page 34 of 35 7.2. Appendix 2 - Gas Conversion Factors Gas conversion factors (GCF’s) for gasses metered using Hastings Instruments products, can be found by visiting the Hastings Instruments web site. The web address can be found at the end of this docu...