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Sierra Series 730 Accu-Mass
™
Mass Flow Meters
Instruction Manual
Part Number IM-73-AM
Revision E 05/04
5 Harris Court, Building L Monterey, CA 93940
(831) 373-0200 (800) 866-0200
Fax (831) 373-4402
http://www.sierrainstruments.com
Sierra Instruments b.v. Bolstoen 30A 1046 AV Amsterdam The Netherlands
+31(0)20-6145810 Fax +31(0)20-6145815
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Summary of Contents for Sierra Accu-Mass 730
- Page 1 Mass Flow Meters Instruction Manual Part Number IM-73-AM Revision E 05/04 5 Harris Court, Building L Monterey, CA 93940 (831) 373-0200 (800) 866-0200 Fax (831) 373-4402 http://www.sierrainstruments.com Sierra Instruments b.v. Bolstoen 30A 1046 AV Amsterdam The Netherlands +31(0)20-6145810 Fax +31(0)20-6145815...
- Page 2 Customer Notice Sierra Instruments, Inc. is not liable for any damage or personal injury, whatsoever, resulting from the use of Sierra Instruments standard mass flow meters for oxygen gas. You are responsible for determining if this mass flow meter is appropriate for your oxygen application.
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Page 3: Table Of Contents
Series 730 Instruction Manual Table of Contents Series 730 Mass Flow Meters............3 Safety Information................4 Receipt of Components..............4 Technical Assistance...............4 Installation Overview..............5 Unobstructed Flow Requirements..........5 Installation..................6 Wiring Connections - NEMA 2 Enclosures........7 Wiring Connections - NEMA 4 Enclosures........7 Output Signal Wiring...............8 Troubleshooting the Flow Meter............8 Returning Equipment to the Factory..........10 Product Specifications..............11... - Page 4 Series 730 Instruction Manual Warnings and Cautions Warning! All wiring procedures must be performed with the power Off. Caution! All flow meter connections and fittings must have the same or higher pres- sure rating as the main pipeline. Caution! Do not connect power to the 4-20 mA terminals. Caution! Before attempting any flow meter repair, verify that the line is de-pressurized.
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Page 5: Series 730 Mass Flow Meters
Sierra’s Accu-Mass sensor is a reference-grade platinum resistance temperature detector (RTD) encapsulated in glass. The platinum RTD wire is wound on a rugged ceramic mandrel for strength and stability. -
Page 6: Safety Information
Refer to Troubleshooting for specific information and recom- mendations. If the problem persists after following the troubleshooting procedures outlined in this manual, contact Sierra Instruments by fax or by E- mail (service@sierrainstruments.com); or, visit the Sierra website at www.sierrainstruments.com for further assistance. For phone support you may call (800) 866-0200 or (831) 373-0200 between 8:00 a.m. -
Page 7: Installation Overview
Series 730 Instruction Manual Installation Overview When selecting an installation site, make sure that: 1. Line pressure and temperature will not exceed the flow meter rating. Temperature should not vary more than 120°F (50°C) from the calibration temperature. Line pressure should not vary more than 50 psi (3.4 bar) around the calibrated pressure. -
Page 8: Installation
Series 730 Instruction Manual 10 D 10 D Flow Flow Flow meter Flow meter Reduction before meter One 90° elbow before meter 15 D 20 D Flow meter Flow Flow Flow meter Two 90° elbows before meter in one plane Expansion before meter 25 D 10 D... -
Page 9: Wiring Connections - Nema 2 Enclosures
Series 730 Instruction Manual Wiring Connections - NEMA 2 CE Enclosures NEMA 2 enclosures are supplied with a 6-pin connector for direct connection to the supplied mating connector. The pin designations Warning! are given in Figure 3 below. Connect 15 VDC input power (300 mA All wiring procedures load, maximum) to pin 1 and power ground to pin 5. -
Page 10: Output Signal Wiring
Flow Meter Calibration Sierra Instruments maintains a fully-equipped calibration laboratory. All measuring and test equipment used in the calibration of Sierra me- ters are traceable to NIST standards. Sierra is ISO-9001 registered and conforms to the requirements of ANSI/NCSL-Z540 and ISO/IEC Guide 25. - Page 11 Series 730 Instruction Manual Problem Possible Cause Solution Flow measurement is Very erratic or non-uniform flow Follow installation requirements erratic or fluctuating shown in Figure 2 Flow meter installed with less than re- Follow installation requirements quired minimum pipe diameters up- shown in Figure 2 stream and downstream of the sensor Probe is not secured to a solid base...
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Page 12: Returning Equipment To The Factory
Before returning any mass flow meter to the factory, you must com- plete a Sierra Calibration/Repair Data Sheet. You may download the data sheet to your computer by visiting the Sierra website at www.sierrainstruments.com. Or, contact Customer Service at: service@sierrainstruments.com (Email) or, (800) 866-0200 or (831) 373-0200 in the US, or +31(0)20-6145810 in Europe. -
Page 13: Product Specifications
Series 730 Instruction Manual Product Specifications Operating Specifications Gases Most non-combustible, non-corrosive gases Mass Flow Rates Mass Flow Rate for Air NPT Size Minimum Range Maximum Range 1/4-inch 0–0.035 scfm 0–4.5 scfm 1/2-inch 0–0.5 scfm 0–12 scfm 3/4-inch 0–1 scfm 0–25 scfm 1 1/4-inch 0–2 scfm... - Page 14 730/600 WIRING CONNECTIONS No#. Color Signal Black Sig. Ground Blue Hi Rose Connector White Signal Female Mating Connector DC input Power Solder Side Green Power Ground (Brown or Orange) (Bridge) No#. Color Signal Black Sig. Ground Black Connector White Signal Female Mating Connector DC input Power Solder Side...
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