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.
Table of Contents Series 24-HP Instruction Manual Customer Notice Unless you have specifically ordered Sierra’s optional O2 cleaning, this flow meter 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 Instruments standard mass flow meters for oxygen gas. You are responsible for cleaning the mass flow meter to the degree required for your oxygen flow application.
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.............................................
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.....................................................................
Series 24-HP Instruction Manual Table of Contents Figures 1-1. 1-2. 1-3. 2-1. 2-2. 2-3. 2-4. 2-5. 2-6. 2-7. 2-8. 2-9. 2-10. 2-11. 2-12. 2-13. 2-14. 2-15. 2-16. 2-17. 2-18. 2-19. 2-20. 2-21. 2-22. 2-23. 2-24 2-25 2-26 3-1. In-Line Vortex Multi-Parameter Mass Flow Meter ............... 1-3 Measurement Principle of Vortex Flow Meters ..................... 1-4 Reynolds Number Range of the Innova-Mass ........................ 1-6 Recommended Pipe Length Required for Installation ...........
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.
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 process flow measurement. From a single entry point in the pipeline, InnovaMass meters offer precise measurements of five parameters including mass flow, volumetric flow, temperature, pressure and fluid density.
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. Warning! Caution! Note This statement appears with information that is important to protect people and equipment from damage. Pay very close attention to all warnings that apply to your application. This statement appears with information that is important for protecting your equipment and performance.
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 directly measuring three variables–fluid velocity, temperature and pressure. The built-in flow computer calculates the mass flow rate and volumetric flow rate based on these three direct measurements.
Chapter 1 Introduction Series 24-HP Instruction Manual Vortex Shedding Frequency Von Karman vortices form downstream of a shedder bar into two distinct 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.
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 25 ft/s Vmin Vmax Vmin Vmax ρ 300 ft/s 37 m/s ρ 91 m/s Liquid 3 1 ft/s 30 ft/s English ρ (lb/ft ) 0.
Chapter 1 Introduction Series 24-HP Instruction Manual Strouhal Number, St As shown in Figure 1-3, Innova-Mass™ meters exhibit a constant Strouhal number across a large range of Reynolds numbers, indicating a consistent 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 number.
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 micro-machined silicon, fabricated using integrated circuit processing technology. A nine-point pressure/temperature calibration is performed on every sensor. Digital compensation allows these transducers to operate within a 0.
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 requirements are 100 milliamps at 12-36 VDC. An optional AC powered unit is available.
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 installation instructions. See page 2-6 for Series 241 installation instructions. Wiring instructions begin on page 2-19.
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 repeatable performance install the flow meter using the recommended number of straight run pipe diameters upstream and downstream of the sensor.
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 recommended 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).
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).
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 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).
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 meter, review the mounting position and isolation value requirements given below.
Series 24-HP Instruction Manual Chapter 2 Installation Cold Tap Guidelines Refer to a standard code for all pipe tapping operations. The following tapping instructions are general in nature and intended for guideline purposes only. Caution! When using toxic or corrosive gases, purge the line with inert gas for a minimum of four hours at full gas flow before installing the flow meter. 1. Turn off the flow of process gas, liquid or steam. Verify that the line is not pressurized. 2.
Chapter 2 Installation Series 24-HP Instruction Manual Hot Tap Guidelines Warning! Hot tapping must be performed by a trained professional. US. regulations often require a hot tap permit. The manufacturer of the hot tap equipment and/or the contractor performing the hot tap is responsible for providing proof of such a permit. Refer to a standard code for all pipe tapping operations. The following tapping instructions are general in nature and intended for guideline purposes only. 1.
Series 24-HP Instruction Manual Chapter 2 Installation Flow Meter Insertion The sensor head must be properly positioned in the pipe. For this reason, it is important that insertion length calculations are carefully followed. A sensor probe inserted at the wrong depth in the pipe will result in inaccurate readings. Insertion flow meters are applicable to pipes 2 inch and larger. For pipe sizes ten inches and smaller, the centerline of the meter’s sensing head is located at the pipe’s centerline.
Chapter 2 Installation Series 24-HP Instruction Manual Installing Flow Meters with a Compression Connection* Use the following formula to determine insertion length for flow meters (NPT and flanged) with a compression process connection. The installation procedure is given on the next page. Insertion Length Formula I =S–F–R–t Where: I = Insertion length. S= Stem length – the distance from the center of the sensor head to the base of the enclosure adapter (S = 29.47 inches for standard probes; S = 13.
Series 24-HP Instruction Manual Chapter 2 Installation Insertion Procedure for Meters with a Compression Connection Figure 2-7. Flow Meter with Compression Type Fitting 1. Calculate the required sensor probe insertion length. Caution! The sensor alignment pointer must point downstream, in the direction of flow. 2. Fully retract the stem until the sensor head is touching the bottom of the stem housing. Slightly tighten the compression nut to prevent slippage. 3.
Chapter 2 Installation Series 24-HP Instruction Manual Installing Flow Meters with a Packing Gland Connection* Use the formula below to determine the insertion depth for flow meters (NPT and flanged) equipped with an insertion tool. To install, see the next page for instructions for meters with a permanent insertion tool. For meters with a removable insertion tool, see page 2-14. Insertion Length Formula I = F + R + t – 1.35 Where: I = Insertion length.
Series 24-HP Instruction Manual Chapter 2 Installation Insertion Procedure for Flow Meters with Permanent Insertion Tool Figure 2-9. Flow Meter with Permanent Insertion Tool Caution! The sensor alignment pointer must point downstream, in the direction of flow. Note If line pressure is above 500 psig, it could require up to 25 ft lb of torque to insert the flow meter. Do not confuse this with possible interference in the pipe. 1. Calculate the required sensor probe insertion length (see previous page).
Chapter 2 Installation Series 24-HP Instruction Manual Insertion Procedure for Flow Meters with Removable Insertion Tool Figure 2-10. Flow Meter with Removable Insertion Tool Caution! The sensor alignment pointer must point downstream, in the direction of flow. 1. Calculate the required sensor probe insertion length. Measure from the depth marker arrow down the stanchion and scribe a mark at the calculated insertion depth. 2.
Series 24-HP Instruction Manual Chapter 2 Installation 7. Tighten the packing gland nuts to stop leakage around the stem. Do not torque over 20 ft-lbs. 8. Slide the stem clamp back into position. Torque stem clamp bolts to 15 ft-lbs. Replace the stem clamp nuts and torque to 10-15 ft-lbs. 9. To separate the insertion tool from the flow meter, remove four socket head cap bolts securing the upper and lower retractor brackets. Remove the insertion tool.
Chapter 2 Installation Series 24-HP Instruction Manual Insertion Procedure for Flow Meters with No Insertion Tool (Packing Gland Connection) 1. Calculate the required sensor probe insertion length. Warning! The line pressure must be less than 50 psig for installation. 2. Fully retract the stem until the sensor head is touching the bottom of the stem housing. Remove the two top stem clamp nuts and loosen two stem clamp bolts. Slide the stem clamp away to expose the packing gland nuts.
Series 24-HP Instruction Manual Chapter 2 Installation Adjusting Meter Orientation Depending on installation requirements, you may need to adjust the meter orientation. There are two adjustments available. The first rotates the position of the LCD display/keypad and is available on both in-line and insertion meters. The second is to rotate the enclosure position. This adjustment is only allowed on Series 240 In-Line meters. Display/Keypad Adjustment (All Meters) Figure 2-12.
Chapter 2 Installation Series 24-HP Instruction Manual Enclosure Adjustment (Series 240 Only) Figure 2-13. Enclosure Viewing Adjustment To avoid damage to the sensor wires, do not rotate the enclosure beyond 180-degrees from the original position. To adjust the enclosure: 1. Remove power to the flow meter. 2. Loosen the three set screws shown above. Rotate the display to the desired position (maximum 180-degrees). 3. Tighten the three set screws. Restore power to the meter.
Series 24-HP Instruction Manual Chapter 2 Installation Wiring Connections Warning! To avoid potential electric shock, follow National Electric Code safety practices or your local code when wiring this unit to a power source and to peripheral devices. Failure to do so could result in injury or death. All AC power connections must be in accordance with published CE directives. All wiring procedures must be performed with the power off.
Chapter 2 Installation Series 24-HP Instruction Manual 4-20 mA Output Connections The standard Innova-Mass Flow Meter has a single 4-20 mA loop. Two additional loops are available on the optional communication board. The 4-20 mA loop current is controlled by the meter electronics. The electronics must be wired in series with the sense resistor or current meter. The current control electronics require 12 volts at the input terminals to operate correctly.
Series 24-HP Instruction Manual Chapter 2 Installation Figure 2-18. Non-Isolated 4–20 mA Output Using Meter Input Power Supply Figure 2-19. Isolated 4–20 mA Output using Meter Provided Power Supply Pulse Output Connections The pulse output is used for a remote counter. When the preset volume or mass (defined in the totalizer settings, see page 3-8) has passed the meter, the output provides a 50 millisecond square pulse. The pulse output optical relay is a normally-open single-pole relay.
Chapter 2 Installation Series 24-HP Instruction Manual Figure 2-20. Isolated Pulse Output with External Power Supply Figure 2-21. Non-Isolated Pulse Output Using Input Power Supply Figure 2-22.
Series 24-HP Instruction Manual Chapter 2 Installation Alarm Output Connections One alarm output (Alarm 1) is included on the standard Innova-Mass™ Flow Meter. Two or more alarms (Alarm 2 and Alarm 3) are included on the optional communication board. The alarm output optical relays are normally-open single-pole relays. The relays have a nominal 200 volt/160 ohm rating.
Chapter 2 Installation Series 24-HP Instruction Manual Figure 2-25. Isolated Alarm Output Using Meter Provided Power Supply Remote Electronics Wiring The remote electronics enclosure should be mounted in a convenient, easy to reach location. For hazardous location installations, make sure to observe agency requirements for installation. Allow some slack in the interface cable between the junction box and the remote electronics enclosure.
Series 24-HP Instruction Manual Chapter 2 Installation Optional Input Electronics Wiring The meter has two optional input wiring terminals. These can be used to input a Remote or Second RTD input in the case of an Energy Monitoring meter, for the input of a Remote Pressure Transducer, to pass a Contact Closure or for a Remote Density measurement to name a few. In any case, the wiring diagram will be included with the meter if any of the options are specified.
Chapter 2 Installation 2-26 Series 24-HP Instruction Manual IM-24-HP
Series 24-HP Instruction Manual Chapter 3 Operation Chapter 3 Operating Instructions After installing the Innova-Mass Vortex Flow Meter, you are ready to begin operation. The sections in this chapter explain the display/keypad commands, meter start-up and programming. The meter is ready to operate at start up without any special programming. To enter parameters and system settings unique to your operation, see the following pages for instructions on using the setup menus.
Chapter 3 Operation Series 24-HP Instruction Manual Start-Up To begin flow meter operation: 1. Verify the flow meter is installed and wired as described in Chapter 2. 2. Apply power to the meter. At start up, the unit runs a series of selfNote Starting the flow meter or pressing EXIT will always display the Run Mode screens. tests that check the RAM, ROM, EPROM and all flow sensing components. After completing the self-test sequence, the Run Mode screens appear. 3.
Series 24-HP Instruction Manual Chapter 3 Operation Using the Setup Menus Programming the Flow Meter 1. Enter the Setup Menu by pressing the ENTER key until prompted for a password. (All outputs are disabled while using the Setup Menus.) 2. Use the keys to select the password characters (1234 is the factory-set password). When the password is correctly displayed, press ENTER to continue. 3.
Chapter 3 Operation Series 24-HP Instruction Manual Output Menu ENTER Run Mode Password ENTER Output Menu 4-20mA Output 1 More > Use keys to access menus ***see below *see below 4-20mA Output 2 More > ***see below *see below 4-20mA Output 3 More > ***see **see below Modbus Units (Internal/Display) **see below Modbus Order 0-1:2-3 1-0:3-2 2-3:0-1 **see below Comm Protocol Modbus RTU (None1, None2, Odd, Even) **see below Baud Rate 19200 **see below Address 1 below < Measure > None Mass
Series 24-HP Instruction Manual Chapter 3 Operation Example for Setting an Output The following shows how to set Output 1 to measure mass flow with 4 mA = 0 lb/hr and 20 mA = 100 lb/hr with a time constant of 5 seconds. (All outputs are disabled while using the Setup Menus.) First, set the desired units of measurement: 1. Use keys to move to the Units Menu (see page 3-9). 2. Press key until Mass Flow Unit appears. Press ENTER. 3. Press key until lb appears in the numerator.
Chapter 3 Operation Series 24-HP Instruction Manual Display Menu ENTER Run Mode Password ENTER Display Menu Use keys to access menus Cycle Time(Sec) 0 If Cycle Time is set to zero, manual advance is required Number of Digits 2 Used to set t he number of digits displayed after decimal point Display TC(sec) 1 TC = Display Time Constant, used to smooth display MF Vf Te Pr De T Y or N A1 A2 A3 Fl Dt E Y or N Mf = Mass Flow Vf = Volume Flow Te = Temperature Pr = Pressure De = Density T = Total A1 =
Series 24-HP Instruction Manual Chapter 3 Operation Alarms Menu Example for Setting an Alarm The following shows how to set Alarm 1 to activate if the mass flow rate is greater than 100 lb/hr. You can check the alarm configuration in the Run Mode by pressing the keys until Alarm [1] appears. The lower line displays the mass flow rate at which the alarm activates. Note: all outputs are disabled while using the Setup Menus. First, set the desired units of measurement: 1.
Chapter 3 Operation Series 24-HP Instruction Manual Totalizer #1 Menu Use the Totalizer Menu to configure and monitor the totalizer. The totalizer output is a 50 millisecond (.05 second) positive pulse (relay closed for 50 milliseconds). The totalizer cannot operate faster than one pulse every 100 millisecond (.1 second). A good rule to follow is to set the unit per pulse value equal to the maximum flow in the same units per second. This will limit the pulse to no faster than one pulse every second.
Series 24-HP Instruction Manual Chapter 3 Operation Totalizer #2 Menu Use the Totalizer #2 to Monitor Flow or Energy. Note that Totalizer #2 does not operate a relay, it is for monitoring only.
Chapter 3 Operation Series 24-HP Instruction Manual Energy Menu – For EMS Energy Meters Only ENTER Run Mode Password ENTER Energy Menu Use keys to access menus Loc in Sent Flow Yes or No Heating System Yes or No % Returned xxx Configuration: There are several possibilities regarding the measurement of water or steam energy given the location of the meter and the use of a second RTD.
Series 24-HP Instruction Manual Chapter 3 Operation Fluid Menu ENTER Run Mode Password ENTER Fluid Menu Use keys to access menus < Liquid Water Ammonia Chlorine Flowing Fluid Liquids > Goyal-Dorais > API 2540 > Nat Gas AGA8 > Real Gas > Other Gas > STD Temp (F) xxxx STD Press (PSIA) xxxx NORM Temp (C) xxxx NORM Press ( KPA ) xxxx < Mole Weight > xxxx < Density @60F > xxxx < Rel.
Chapter 3 Operation Series 24-HP Instruction Manual Units Menu Use the Units Menu to configure the flow meter with the desired units of measurement. (These are global settings and determine what appears on all screens.
Series 24-HP Instruction Manual Chapter 3 Operation Time & Date Menu ENTER Run Mode Password ENTER Time & Date Menu Use keys to access menus Set Time xx:xx:xx Set Date xx/xx/xx Use the Time and Date Menu to enter the correct time and date into the flow meter’s memory. The parameters are used in the Run Mode and the alarm and system log files. Note: Time is displayed in AM/PM format, but military format is used to set the time. For example, 1:00 PM is entered as 13:00:00 in the Set Time menu.
Chapter 3 Operation Series 24-HP Instruction Manual Diagnostics Menu ENTER Run Mode Password ENTER Diagnositcs Menu Simulate Vortex Frequency (Hz) Sim Vor Freq xxx Simulate Temperature (degrees F) Sim Temp 1,2 xxx Simulate Pressure (PSIA) Sim Pressure xxx Highest Recorded Velocity (ft/sec) Highest Velocity xxx Highest Recorded Temperature (degrees F) Highest Temp 1,2 xxx Highest Recorded Pressure (PSIA) Use keys to access menus Highest Pressure xxx Momentarily displayed System LOG xx Files (
Series 24-HP Instruction Manual Chapter 3 Operation Calibration Menu The Calibration Menu contains the calibration coefficients for the flow meter. These values should by changed only by properly trained personnel. The Vortex Coef Ck and Low Flow Cutoff are set at the factory. Consult the factory for help with these settings if the meter is showing erratic flow rate.
Chapter 3 Operation Series 24-HP Instruction Manual Password Menu ENTER Run Mode Password ENTER Password Menu Use keys to access menus Set Password 1234 Use the Password Menu to set or change the system password. The factory-set password is 1234.
Series 24-HP Instruction Manual Chapter 4 Troubleshooting & Repair Chapter 4 Troubleshooting and Repair Warning! Before attempting any flow meter repair, verify that the line is not pressurized. Always remove main power before disassembling any part of the mass flow meter. * f G fi A 4- 20(1),Zero xxxx A1 A3 A2 A4 4- 20(1),FScale xxxx It Kb 4-20(2), Zero xxxx V Re 4-20(2), Fscale xxxx Rtd1 = x.x Rtd2 = x.x 4-20(3), Zero xxxx Pe(v) = 0.0 Pv(v) = 0.
Chapter 4 Troubleshooting & Repair Series 24-HP Instruction Manual Column One Hidden Diagnostics Values • • • • • • • • • • • • • • • • 4-2 f = vortex shedding frequency (Hz). fi = adaptive filter – should be approximately 25% higher than the vortex shedding frequency, this is a low-pass filter. If the meter is using the Filter Control (see below) in the manual mode, fi will be displayed as fm. G = gain (applied to vortex signal amplitude). Gain defaults to 1.
Series 24-HP Instruction Manual • • • • • • • • • Chapter 4 Troubleshooting & Repair Lvl = threshold level. If the Low Flow Cutoff in the calibration menu is set above this value, the meter will read zero flow. The Lvl level can be checked at no flow. At no flow, the Lvl must be below the Low Flow Cutoff setting or the meter will have an output at no flow. Adj. Flilter = adjustable filter. Displays the filtering in decibels. Normally reads zero.
Chapter 4 Troubleshooting & Repair • • • • • • • • • • • • • • 4-4 Series 24-HP Instruction Manual Alarm (2) Test = Used as a test to verify that the alarm circuit is functioning. When low is selected the alarm will initiate a low alarm on the output. When High is selected it will give a high alarm on the output. Alarm (3) Test = Used as a test to verify that the alarm circuit is functioning. When low is selected the alarm will initiate a low alarm on the output.
Series 24-HP Instruction Manual • • • • Chapter 4 Troubleshooting & Repair Pressure Cal Current = Calibration value for the electronics and pressure transducer combination. Consult Factory for value. RTD1. Press the RIGHT ARROW to access: o Ro = RTD resistance at 0°C (1000 ohms). o A = RTD coefficient A (.0039083). o B = RTD coefficient B (-5.775e-07). o Slope = unique value for each set of electronics. o Int = unique value for each set of electronics.
Chapter 4 Troubleshooting & Repair Series 24-HP Instruction Manual Troubleshooting the Flow Meter Symptom: Output at no Flow 1. The low flow cutoff is set too low. At no flow, go to the first column of the hidden diagnostics menu and record the Lvl value. The low flow cutoff must be set above this value. 2. Example: at no flow , Lvl = 25. Set the low flow cutoff in the Calibration Menu to approximately 28 and the meter will no longer read a flow rate at no flow. Symptom: Erratic Output 1.
Series 24-HP Instruction Manual Chapter 4 Troubleshooting & Repair % change to final value in one second = 100 (1 – e(-1/TC)) 4. The vortex coefficient Ck may be incorrectly set. The Ck is a value in the equation used to determine if a frequency represents a valid vortex signal given the fluid density and signal amplitude. In practice, the Ck value controls the adaptive filter, fi, setting. During flow, view the f and fi values in the first column of the hidden diagnostics.
Chapter 4 Troubleshooting & Repair Series 24-HP Instruction Manual Symptom: Meter Displays Temperature Fault 1. For remote mounted electronics, carefully check all the wiring connections in the remote mount junction box. There are 18 connections that must be correct, verify each color (black and red), shield, and wire number. 2. Go to the first column of the hidden diagnostics and check the resistance of the rtd1. It should be about 1080 ohms at room temperature. 3.
Series 24-HP Instruction Manual Chapter 4 Troubleshooting & Repair nector on the temperature / pressure board. The current should be approximately .0004 amps. 3. Go to the first column of the hidden diagnostics and record the Pe(V) and Pv(V) values and consult the factory with findings. Electronics Assembly Replacement (All Meters) The electronics boards are electrostatically sensitive.
Chapter 4 Troubleshooting & Repair Series 24-HP Instruction Manual Pressure Sensor Replacement 1. For local mounted electronics, remove the electronics stack as previously described. For remote mount electronics, remove all wires and sensor connectors from the remote feedthrough board in the junction box at the meter. 2. Loosen the three set screws at the center of the adapter between the meter and the enclosure. 3. Remove the top half of the adapter to expose the pressure transducer. 4.
Series 24-HP Instruction Manual Appendix A Specifications Appendix A Product Specifications Accuracy Process Variables 240 Series In-Line Meters 241 Series Insertion Meters(1) Liquids Gas & Steam Liquids Gas & Steam Mass Flow Rate ±1% of rate over a 30:1 range(3) ±1.5% of rate(2) over a 30:1 range(3) ±1.5% of rate over a 30:1 range(3) ±2% of rate(2) over a 30:1 range(3) Volumetric Flow Rate ±0.7% of rate over a 30:1 range(3) ±1% of rate over a 30:1 range(3) ±1.
Appendix A Specifications Pressure 0 psig 100 psig 200 psig 300 psig 400 psig 500 psig Pressure 0 barg 5 barg 10 barg 15 barg 20 barg 30 barg Linear Range 0.5 1.8 18 5 138 7 258 8 380 10 502 11 624 Typical Air Minimum and Maximum Flow Rates (SCFM) Air at 70oF Nominal Pipe Size (in) 0.75 1 1.
Series 24-HP Instruction Manual Pressure 5 psig 100 psig 200 psig 300 psig 400 psig 500 psig Pressure 0 barg 5 barg 10 barg 15 barg 20 barg 30 barg Appendix A Specifications Typical Saturated Steam Minimum and Maximum Flow Rates (lb/hr) Nominal Pipe Size (in) 0.5 0.75 1 1.5 2 3 4 6 6.
Appendix A Specifications Series 24-HP Instruction Manual 241 Pressure Ratings Probe Seal Compression Fitting Packing Gland Packing Gland with Removable Retractor Packing Gland with Permanent Retractor Process Connection Material Rating Ordering Code 2-inch MNPT 316L SS ANSI 600 lb CNPT 2-inch 150 lb flange, DN50 PN16 316L SS ANSI 150 lb, PN16 C150, C16 2-inch 300 lb flange, DN50 PN40 316L SS ANSI 300 lb, PN40 C300, C40 2-inch 600 lb flange, DN50 PN64 316L SS ANSI 600 lb, PN64 C600,
Series 24-HP Instruction Manual Pocess Fluid and Ambient Temperature Appendix A Specifications Process Fluid: Standard temperature sensor: –40° F to 500° F (–40° C to 260° C). High temperature sensor: to 750° F ( to 400° C). Ambient: Operating: –5° F to 140° F (–20° C to 60° C). Storage: –40° F to 150° F (–40° C to 65° C). 0-98% relative humidity, non-condensing conditions.
Series 24-HP Instruction Manual Appendix B Glossary Appendix B Glossary A B C D A Cross sectional area. ACFM Actual Cubic Feet Per Minute (volumetric flow rate). ASME American Society of Mechanical Engineers. Bluff Body A non-streamlined body placed into a flow stream to create vortices. Also called a Shedder Bar. BTU British Thermal Unit, an energy measurement. Cenelec European Electrical Code.
Appendix B Glossary Series 24-HP Instruction Manual I J K L In-Line Flow Meter A flow meter which includes a short section of piping which is put in-line with the user’s piping. Insertion Flow Meter A flow meter which is inserted into a hole in the user’s pipeline. Joule A unit of energy equal to one watt for one second. Also equal to a Newton-meter. LCD Liquid crystal display. M N O P B-2 m Mass flow rate. mA Milli-amp, one thousandth of an ampere of current.
Series 24-HP Instruction Manual Appendix B Glossary Q R S T Q Flow rate, usually volumetric. Rangeability Highest measurable flow rate divided by the lowest measurable flow rate. Reynolds Number or Re A dimensionless number equal to the density of a fluid times the velocity of the fluid times the diameter of the fluid channel, divided by the fluid viscosity (i.e., Re = ρVD/µ).
Appendix B Glossary B-4 Series 24-HP Instruction Manual IM-24-HP
Series 24-HP Instruction Manual Appendix C Fluid Calculations Appendix C Fluid Calculations Calculations for Steam T & P When “Steam T & P” is selected in the “Real Gas” selection of the Fluid Menu, the calculations are based on the equations below. Density The density of steam is calculated from the formula given by Keenan and Keys. The given equation is for the volume of the steam. v= 4.555.04 • T +B p B = B0 + B0 g1 (τ )τ ⋅ p + B0 g 2 (τ )τ 3 ⋅ p 3 − B0 g 3 (τ )τ 12 ⋅ p12 2 4 B0 = 1.89 − 2641.
Appendix C Fluid Calculations Series 24-HP Instruction Manual Calculations for Gas (“Real Gas” and “Other Gas”) Use this formula to determine the settings for “Real Gas; Gas” selections and “Other Gas” selections entered in the Fluid Menu. The calculations for gas were taken from Richard W. Miller, Flow Measurement Engineering Handbook (Second Edition, 1989).
Series 24-HP Instruction Manual Appendix C Fluid Calculations Calculations for Liquid Use this formula to determine the settings for “Goyal-Dorais” selections and “Other Liquid” selections entered in the Fluid Menu. The liquid calculations were taken from Richard W. Miller, Flow Measurement Engineering Handbook (Second Edition, 1989). Density The liquid density is found using the Goyal-Doraiswamy Equation.
Appendix C Fluid Calculations C-4 Series 24-HP Instruction Manual IM-24-HP
Series24-HP Instruction Manual Appendix D HART Commands with DD Menu Online Menu 1 Device Setup 1 Display Unit 2 Analog Output 1 Fix Analog Output 2 Trim Analog Output 3 Configure AO1 4 PV is 5 PV AO 6 PV % rnge 7 Configure AO2 8 SV is 9 SV AO SV % rnge Configure AO3 TV is TV AO TV % rnge 3 Meter Display 4 Alarm Setup 1 Alarm Status 2 Alarm 1 Setup 3 Alarm 2 Setup 4 Alarm 3 Setup 5 Records in Log 6 Read Alarm Log 7 Alarm Log Clear 6 Fluid Menu 7 Device Menu 8 Diagnostics 9 Sensor Cal Review IM-2
Appendix D HART Commands Series24-HP Instruction Manual Appendix D HART Commands without DD Menu Online Menu 1 Device Setup 2 PV 3 PV AO 1 Process Variables 2 Diag/Service 3 Basic Setup 1 Snsr 2 AI % Rnge 3 AO1 1 Test Device 2 Loop Test 3 Calibration 4 D/A Trim 1 Tag 2 PV unit 3 Range Values 4 Device Information 5 PV Xfer fnctn 6 PV Damp 1 4 mA 2 20 mA 3 Other 4 End 1 Apply Values 2 Enter Values 1 PV LRV 2 PV URV 3 PV LSL 4 PV USL 1 Distributor 2 Model 3 Dev id 4 Tag 5 Date 6 Write Protect 7 Desc
Appendix E MODBUS Commands Series 24-HP Instruction Manual Appendix E Modbus Communication Applicable Flow Meter Models Sierra Innova-Mass® Mass Flow Meters, Models 240 and 241 with Modbus communication protocol and firmware version 3.00.02 and above. Overview This document describes the preliminary implementation of the Modbus communication protocol for use in monitoring common process variables in the Sierra Innova-Mass® Vortex flow meter.
Appendix E MODBUS Commands Series 24-HP Instruction Manual Modbus Units The Modbus Units menu is to control what units, where applicable, the meter’s variables will be displayed in. Internal – these are the base units of the meter, °F , psia, lbm/sec , ft /sec, Btu/sec , lbm/ft Display – variables are displayed in user selected display unit.
Series 24-HP Instruction Manual Appendix E MODBUS Commands there is an informal register numbering convention derived from the original (now obsolete) Modicon Modbus protocol specification, and used by many vendors of Modbus capable products.
Appendix E MODBUS Commands Series 24-HP Instruction Manual gramming Output Menu’s “Modbus Units” item. The display units strings may be examined by accessing their associated registers. Each of these units string registers contain 2 characters of the string, and the strings may be 2 to 12 characters in length with unused characters set to zero. Note that the byte order affects the order in which the strings are transmitted.
Series 24-HP Instruction Manual Appendix E MODBUS Commands The following registers contain the display units strings: Registers 32007-32012 32001-32006 32025-32030 32019-32024 32031-32036 32013-32017 Variable Volume flow units Mass flow units Temperature units Pressure units Density units Energy flow units Data type string string string string string string Units — — — — — — Function code 03, 04 03, 04 03, 04 03, 04 03, 04 03, 04 Addresses 2006-2011 2000-2005 2024-2029 2018-2023 2030-2035 2012-2017
Appendix E MODBUS Commands Series 24-HP Instruction Manual Discrete Input Definitions The status of the three alarms may be monitored via the Modbus Read Discrete Input command (function code 02). The value returned indicates the state of the alarm, and will be 1 only if the alarm is enabled and active.
Series 24-HP Instruction Manual Appendix E MODBUS Commands Command Message Format The start address is equal to the desired first register number minus one. The addresses derived from the start address and the number of registers must all be mapped to valid defined registers, or an invalid data address exception will occur.
Appendix E MODBUS Commands Series 24-HP Instruction Manual A typical response from the device is as follows: *note these are the older register definitions 01 04 18 00 00 03 E8 00 00 7A 02 6C 62 00 00 41 BA 87 F2 3E BF FC 6F 42 12 EC 8B 4D D1 01 04 18 00 00 6C 41 3E 42 4D Device address Function code Number of data bytes = 24 00 03 E8 Serial number = 1000 (unsigned long) 00 7A 02 Totalizer = 31234 lbm (unsigned long) 62 00 00 Totalizer units = “lb” (string, unused characters are 0) BA 87 F2 Mass flow ra
Series 24-HP Instruction Manual 01 05 00 FF 8C Appendix E MODBUS Commands Device address Function code 5 = write single coil 09 Coil address = 9 00 Data to reset totalizer 3A CRC (not the correct CRC EJS-02-06-07) The unit responds with an identical message to that transmitted, and the totalizer is reset. If the “coil” is turned off as in the following message, the response is also identical to the transmitted message, but the totalizer is not affected.
Appendix E MODBUS Commands E-10 Series 24-HP Instruction Manual IM-24-HP
