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Series 24-HP Instruction Manual Table of Contents
Sierra Series 240 and 241
Innova-Mass™ Multi-Parameter
Vortex Mass Flow Meters
Models 240-VT, 240-VTP, 241-VT, 241-VTP
Instruction Manual
Part Number: IM-24-HP, Rev. C 11/07
CORPORATE HEADQUARTERS
5 Harris Court, Building L, Monterey, CA 93940
Phone (831) 373-0200 (800) 866-0200 Fax (831) 373-4402
www.sierrainstruments.com
EUROPE HEADQUARTERS
Bijlmansweid 2 1934RE Egmond ann den Hoef The Netherlands
Phone
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Table of Contents Series 24-HP Instruction Manual Customer Notice Unless you have specifically ordered Sierra’s optional O cleaning, this flow meter 2 may not be fit for oxygen service. Sierra Instruments, Inc., is not liable for any damage or personal injury, whatsoever, resulting from the use of Sierra Instru- ments standard mass flow meters for oxygen gas. You are responsible for clean- ing the mass flow meter to the degree required for your oxygen flow application.
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Series 24-HP Instruction Manual Table of Contents Table of Contents Chapter 1 Introduction Innova-Mass™ Vortex Mass Flow Meters.......................................... 1-1 Using this Manual ......................................................................... 1-1 Note and Safety Information......................................................... 1-2 Receipt of System Components .................................................... 1-2 Technical Assistance.......................
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Table of Contents Series 24-HP Instruction Manual Energy Menu.......................................................................3-10 Fluid Menu.................................................................................. 3-11 Units Menu.................................................................................. 3-12 Time and Date Menu................................................................... 3-13 Diagnostics Menu................................................
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Series 24-HP Instruction Manual Table of Contents Figures 1-1. In-Line Vortex Multi-Parameter Mass Flow Meter ............... 1-3 1-2. Measurement Principle of Vortex Flow Meters..................... 1-4 1-3. Reynolds Number Range of the Innova-Mass........................ 1-6 2-1. Recommended Pipe Length Required for Installation ........... 2-2 2-2. Flange Bolt Torquing Sequence ............................................. 2-3 2-3. Wafer-Style Flow Meter Installation................
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Table of Contents Series 24-HP Instruction Manual Warnings and Cautions Warning! Agency approval for hazardous location installations varies between flow meter models. Consult the flow meter nameplate for specific flow meter approvals before any hazardous location installation. Hot tapping must be performed by a trained professional. U.S. regulations often require a hot tap permit. The manufacturer of the hot tap equipment and/or the contractor perform- ing the hot tap is respon
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Series 24-HP Instruction Manual Chapter 1 Introduction Chapter 1 Introduction ™ Innova-Mass Multi-Parameter Vortex Mass Flow Meters The Sierra Instruments’ Series 240 In-Line and the Series 241 Insertion Innova-Mass™ Vortex Flow Meters provide a reliable solution for proc- ess flow measurement. From a single entry point in the pipeline, Innova- Mass meters offer precise measurements of five parameters including mass flow, volumetric flow, temperature, pressure and fluid density. The uniq
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Chapter 1 Introduction Series 24-HP Instruction Manual Note and Safety Information We use note, caution and warning statements throughout this book to draw your attention to important information. Caution! Note Warning! This statement appears with This statement appears with This statement appears with a information that is important to information that is important short message to alert you to protect people and equipment for protecting your equipment an important detail. from
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Series 24-HP Instruction Manual Chapter 1 Introduction How the Innova-Mass Vortex Mass Flow Meter Operates Figure 1-1. In-Line Vortex Multi-Parameter Mass Flow Meter Sierra Series 240 and 241 Innova-Mass™ Multi-Parameter Vortex Mass Flow Meters use a unique sensor head to monitor mass flow rate by di- rectly measuring three variables–fluid velocity, temperature and pres- sure. The built-in flow computer calculates the mass flow rate and volu- metric flow rate based on these three dire
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Chapter 1 Introduction Series 24-HP Instruction Manual Vortex Shedding Frequency Von Karman vortices form downstream of a shedder bar into two dis- tinct wakes. The vortices of one wake rotate clockwise while those of the other wake rotate counterclockwise. Vortices generate one at a time, alternating from the left side to the right side of the shedder bar. Vortices interact with their surrounding space by over-powering every other nearby swirl on the verge of development. Close to the
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Series 24-HP Instruction Manual Chapter 1 Introduction Flow Velocity Range To ensure trouble-free operation, vortex flow meters must be correctly sized so that the flow velocity range through the meter lies within the measurable velocity range (with acceptable pressure drop) and the linear range. The measurable range is defined by the minimum and maximum velocity using the following table. Gas Liquid 25 ft/s 3 ρ Vmin 1 ft/s English ρ (lb/ft ) Vmax 300 ft/s 30 ft/s 37 m/
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Chapter 1 Introduction Series 24-HP Instruction Manual As shown in Figure 1-3, Innova-Mass™ meters exhibit a constant Strou- hal number across a large range of Reynolds numbers, indicating a con- sistent linear output over a wide range of flows and fluid types. Below this linear range, the intelligent electronics in Innova-Mass automatically corrects for the variation in the Strouhal number with the Reynolds num- ber. The meter’s smart electronics corrects for this non-linearity via its sim
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Series 24-HP Instruction Manual Chapter 1 Introduction Pressure Measurement Innova-Mass Flow Meters incorporate a solid-state pressure transducer isolated by a 316 stainless steel diaphragm. The transducer itself is mi- cro-machined silicon, fabricated using integrated circuit processing tech- nology. A nine-point pressure/temperature calibration is performed on every sensor. Digital compensation allows these transducers to operate within a 0.3% of full scale accuracy band within the entir
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Chapter 1 Introduction Series 24-HP Instruction Manual Flow Meter Electronics Innova-Mass Flow Meter electronics are available mounted directly to the flow body, or remotely mounted. The electronics housing may be used indoors or outdoors, including wet environments. Power require- ments are 100 milliamps at 12-36 VDC. An optional AC powered unit is available. Three analog output signals are available for your choice of three of the five process variables: mass flow rate, volumetric flow
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Series 24-HP Instruction Manual Chapter 2 Installation Chapter 2 Installation Installation Overview Sierra’s Innova-Mass Vortex Flow Meter installations are simple and straightforward. Both the Series 240 In-Line and Series 241 Insertion type flow meter installations are covered in this chapter. After reviewing the installation requirements given below, see page 2-3 for Series 240 instal- lation instructions. See page 2-6 for Series 241 installation instructions. Wiring instructions beg
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Chapter 2 Installation Series 24-HP Instruction Manual Unobstructed Flow Requirements Select an installation site that will minimize possible distortion in the flow profile. Valves, elbows, control valves and other piping components may cause flow disturbances. Check your specific piping condition against the examples shown below. In order to achieve accurate and re- peatable performance install the flow meter using the recommended number of straight run pipe diameters upstream and downst
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Series 24-HP Instruction Manual Chapter 2 Installation Series 240 In-Line Flow Meter Installation Install the Series 240 In-Line Flow Meter between two conventional pipe flanges as shown in Figures 2-3 and 2-4. Table 2-1 provides the recom- mended minimum stud bolt lengths for wafer-style meter body size and different flange ratings. The meter inside diameter is equal to the same size nominal pipe ID in schedule 80. For example, a 2” meter has an ID of 1.939” (2” schedule 80). Do not
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Chapter 2 Installation Series 24-HP Instruction Manual Wafer-Style Flow Meter Installation Install the wafer-style meter between two conventional pipe flanges of the same nominal size as the flow meter. If the process fluid is a liquid, make sure the meter is located where the pipe is always full. This may require locating the meter at a low point in the piping system. Note: Vortex flow meters are not suitable for two-phase flows (i.e., liquid and gas mixtures). For horizontal pipelines
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Series 24-HP Instruction Manual Chapter 2 Installation Flange-Style Flow Meter Installation Install the flange-style meter between two conventional pipe flanges of the same nominal size as the flow meter. If the process fluid is a liquid, make sure the meter is located where the pipe is always full. This may re- quire locating the meter at a low point in the piping system. Note: Vortex flow meters are not suitable for two-phase flows (i.e., liquid and gas mix- tures). For horizontal pipeli
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Chapter 2 Installation Series 24-HP Instruction Manual Series 241 Insertion Flow Meter Installation Prepare the pipeline for installation using either a cold tap or hot tap method described on the following pages. Refer to a standard code for all pipe tapping operations. The following tapping instructions are general in nature and intended for guideline purposes only. Before installing the me- ter, review the mounting position and isolation value requirements given below. Mounting Posit
