Hydra SX40 INDUSTRY APPROVALS. The Polysonics, Hydra SX430 is approved by CSA and CE

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2 Hydra SX40 INDUSTRY APPROVALS The Polysonics, Hydra SX430 is approved by CSA and CE

3 INSTRUCTION MANUAL HYDRA SX30 PORTABLE DUAL FREQUENCY DOPPLER FLOWMETER JANUARY 2000 REV. D NOTICE Read this manual before working with the product. For personal and system safety, and for optimum product performance, make sure you thoroughly understand the contents before installing, using, or maintaining this instrument. For equipment service needs outside the United States, contact your nearest Polysonics representative. Within the United States, the Polysonics Service Center is your single-point contact for all Polysonics equipment service needs. If at any time you are not sure what to do, you have a question about using the product, or you have a service or support request, call the Center at (281) This contact is your fastest link to quick and complete answers about any Polysonics product or service. Polysonics, Inc Landsbury Dr., Suite 300 Houston, TX USA Telephone: (281) Fax: (281) Web: C Polysonics, Inc.

4 Hydra SX30 Table of Contents 1. Guidelines and Checklists Guidelines General Application Guidelines Checklist Standard Equipment Checklist Basic Installation & Operation Procedures Install the meter Select an installation location Choose a transducer orientation Attach the transducers to the pipe strap Mount the transducers on the pipe Measure flow Obtain a flow reading Hydra SX30 Features Installation and Operation Procedures Power source procedures Recharge the battery Connect an auxiliary DC power source Screen Contrast Change the screen contrast Trend View the flow trend Set the totalizer units Change the totalizer multiplier Reset the totalizer

5 3.4 Totalizer The 4-20 ma Loop Range the 4-20 ma loop Calibrate the 4-20 ma loop Datalogger Set the data logger time and date Set up and start the data logger Download data from the logger Zoom in on data Zoom in on a selection of data Save the log files Retrieve a saved file Erase all data in the log files Maintenance Flowmeter Maintenance Upgrade Meter Software Troubleshooting Different Modes of Operation Learn Mode Warnings Operating Mode Warnings Service Contacting the Polysonics Service Center Factory Service... 32

6 6. Troubleshooting Procedures Check the FFT Set the low flow cutoff Perform an on-site calibration Reset the factory settings Set the damping parameter Appendix Hydra SX30 Manual Symbol Descriptions Pipe ID Obtain the Pipe ID Pipe ID Charts Application Signal Quality and Signal Strength Hydra SX30 Meter Specifications Hydra SX 30 menu tree... 44

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8 1. Guidelines and Checklists 1.1 Guidelines General Application Guidelines The Hydra SX30 Dual Frequency Doppler (DFD) Portable Flowmeter is suited for measuring the flow of fluids with undissolved, entrained solids or dispersed gases such as: Wastewater primary sludge activated sludge Food dairy fluidized foods Industrial crude oil dredging 1.2 Checklist Standard Equipment Checklist The following equipment is included with your new Hydra SX30 DFD Flowmeter. (1) Hydra SX30 Portable DFD Flowmeter (1) battery, fully charged (1) carrying case (2) non-submersible DFD Transducers (2) 32 inch pipe straps (1) 67 inch pipe strap (1) 120 volt AC battery recharger (2) 16 foot cables with BNC connectors (2) 3.5" disk containing HydraLink datalog software (1) tube of sonic coupling compound (1) RS232 Cable (1) 3/8 inch Hex socket driver 1

9 A A B C D E YES FIGURE 2.1A RECOMMENDED INSTALLATION LOCATIONS Do not install the transducers at the following locations: A Pipes may not be full B Down flow C Too close to the elbow D Air collects at the top of horizontal pipe E Sediment collects at the bottom of horizontal pipe Conditions existing at these locations can interfere with the transmission of the ultrasonic wave and yield inaccurate or unreliable flow readings. 2

10 2. Basic Installation & Operation Procedures 2.1 Install the meter Select an installation location. NOTE Selecting the proper location to install the transducers is essential to flow measurement reliability. Each application is unique and may require variations in the installation location. 1. Review Figure 2.1a (Recommended Installation Location), on the facing page. 2. Select an installation location using Figure 2.1a and the following guidelines: full pipe flow in the pipe 5 pipe diameters upstream and 3 pipe diameters downstream from: - a direction change on the pipe - pipe joints - a narrowing or widening of the pipe 3

11 HORIZONTAL PIPES Best: - 3 o clock, 9 o clock 12 Good: - 2 o clock, 4 o clock - 10 o clock, 8 o clock 9 3 OK: - 3 o clock, 4 o clock - 9 o clock, 8 o clock 6 FIGURE 2.1B TRANSDUCER ORIENTATIONS ON HORIZONTAL PIPE VERTICAL PIPES Best: - 3 o clock, 9 o clock - another directly opposite position Good: - 2 o clock, 4 o clock - 10 o clock, 8 o clock OK: - 2 o clock, 3 o clock - 10 o clock, 9 o clock 4 FIGURE 2.1C TRANSDUCER ORIENTATIONS ON VERTICAL PIPE

12 2.1.2 Choose a transducer orientation. NOTE Choosing the proper transducer orientation is essential to flow measurement reliability. Each application is unique. You may need to vary the orientation with each application, to achieve optimum meter performance. 1. Review Figures 2.1b,c (Transducer Orientations on Horizontal and Vertical Pipe), on the facing page. 2. Meet the following guidelines to ensure optimum meter performance: 3 o clock and 9 oclock orientation transducers parallel to one another along the pipe circumference generous amounts of coupling compound secure cable connections tight pipe strap 3. IF your application does not enable you to mount the transducers at the recommended Best orientation, THEN choose a Good or OK transducer orientation OR choose a different location to install the transducers. 5

13 2.1.3 Attach the transducers to the pipe strap. 1. See Figure 2.1d - Attach Transducers to the Pipe Strap, below. 2. Loosen the mounting screw on each transducer using a screwdriver. 3. Slide the lock back on each transducer. 4. Place the pipestrap across the mounting. 5. Slide the lock back in place. 6. Tighten the screw FIGURE 2.1D ATTACH TRANSDUCERS TO THE PIPE STRAP

14 2.1.4 Mount the transducers on the pipe. 1. Wrap the pipe strap around the pipe. 2. Slide the pipe strap end through the tension nut assembly. 3. Pull the strap tight AND clamp the tension nut down to secure the pipe strap to the pipe. 4. Loosen the mounting screw of one transducer. 5. Move the transducer at the 3 o clock position on the pipe. (See Figures 2.1b,c Transducer Orientations on Horizontal and Vertical Pipe, page 4) 6. Tighten the mounting screw to secure the transducer in place. 7. Repeat steps 4-6 for the second transducer, now at the 9 o clock position. 8. Remove the pipe strap from the pipe AND generously apply sonic coupling compound to each transducer surface. 9. Put the pipe strap on the pipe, placing the transducers in the proper position. 10. Tighten the tension nut assembly with a 3/8 hex nut driver securing the pipe strap. NOTE Increasing the pipe strap tension improves signal transmission. 7

15 FIGURE 2.2A - POLYSONICS HYDRA SX SCREEN FIGURE 2.2B - PIPE ID SCREEN FIGURE 2.2C - FLOW UNITS SCREEN 8

16 2.2 Measure flow Obtain a flow reading. NOTE You must know the pipe internal diameter to ensure reliable flow measurements AND there must be flow in the pipe when you start the meter. 1. IF you do not know the pipe ID, THEN go to section 7.2 Pipe ID on page Press ON to start the meter. You are now in Start Up Mode 3. Wait for the Polysonics Hydra SX scren to appear. (See Figure 2.2.a-Hydra SX Screen, facing page) 4. Check the battery life gauge when the Polysonics Hydra SX screen appears (appears for 5 seconds). 5. IF the battery life is less than the anticipated hours of use, THEN see procedures Recharge the battery, OR Connect an auxiliary DC power source, on page Wait for the Pipe ID screen to appear. (See Figure 2.2b-Pipe ID Screen, facing page.) NOTE Use the BACK-SPACE key, to the right of the number keys, for correcting errors when entering numbers. 7. Press SCROLL until the cursor moves to the correct pipe ID units. 8. Press ENTER. 9. Enter the Pipe ID using the number keys. 10. Press ENTER 11. Press the Menu ---> key to the left of Next. 12. Wait for the Flow Units screen to appear. (See Figure 2.2c - Flow Units Screen, facing page) 13. Press SCROLL until the cursor moves to the correct volume units. 14. Press ENTER. 15. Press SCROLL until the cursor moves to the correct time base units. 16. Press ENTER. 17. Press the Menu ---> key to the left of Next. 9

17 FIGURE 2.2D - LEARN MODE SCREEN FIGURE 2.2E FLOW SCREEN 10

18 (procedure Obtain a flow reading continued...) You are now in Learn Mode. 18. Wait for the Learn Mode screen to appear. (See Figure 2.2d - Learn Mode Screen, facing page) NOTE IF you are operating the meter without installing it, THEN press the ENTER key four times to bring up the flow screen. 19. Review the diagnostic information that appears in the Learn Mode screen. (appears for 60 seconds) 20. IF any of the following warnings appear: Invalid Signal, Can t Learn No Flow, Can t Learn Warning Low S Strength Warning Poor S Strength THEN see section 5.2 (Learn Mode Warning), on page 28. You are now in Operating Mode 21. Wait for the Flow screen to appear. (See Figure 2.2e - Flow Screen, facing page) 22. Read the flow. 23. IF the flow reading is not accurate, AND you can verify the flow from a calibrated flowmeter or other certified source, THEN see procedure Perform an on-site calibration, on page IF any of the following warnings appear: Warning Alarm Failed/No Flow THEN see section Operating Mode Warnings, on page

19 3. Hydra SX30 Features Installation and Operation Procedures. 3.1 Power source procedures Recharge the battery. NOTE You can recharge the battery while you are operating the meter, even under low battery conditions. Overcharging will degrade the battery. Do not charge the batter for more than eight hours. The battery is fully charged at the factory. 1. IF you need to run the meter at one location for more than 12 hours, THEN use an auxiliary DC power source. (See procedure Connect an auxiliary DC power source, below) 2. Plug the power supply cable into the CHARGE socket on the meter face, to the right of the display window. 3. Charge a depleted battery for 8 hours to fully recharge Connect an auxiliary DC power source. NOTE The battery will not charge while the meter is operating from an auxiliary DC power source. 1. Use a minimum 10.5-volt power supply that supplies 0.25 amps to power the flowmeter. 2. Plug the power supply cable into the appropriate socket on the side of the meter. DO NOT use power supplies greater than 18-volts, to avoid damaging the flometer. 12

20 3.2 Screen Contrast Change the screen contrast. 1. Press the +/- key on the number key pad. 2. Wait for the adjust contrast bar to appear. (See Figure Adjust Contrast Bar, below) 3. Press the +/- key on the number key pad to start the contrast bar scrolling. 4. WHEN the screen is the desired contrast, THEN press the +/- key once more, to stop the scrolling. 5. Click the SCROLL and BACK-SPACE keys to fine adjust the contrast. 6. Press the Menu ---> key to the left of Flow to return to the Flow screen. FIGURE ADJUST CONTRAST BAR 3.3 Trend View the flow trend. NOTE Trend runs at real time rate of action. To change the update rate turn on the datalogger and set the log rate. (See procedure Set up and start the datalogger, page 19) 1. Press the Menu ---> key to the left of Trend in the Flow Screen. 2. Wait for the Trend screen to appear. 3. Press the Menu ---> key to the left of Flow to return to the Flow screen. 13

21 3.4 Totaliz otalizer er Set the totalizer units. 1. Press the Menu ---> key to the left of Diags in the Flow screen. 2. Wait for the Limits screen to appear. 3. Press the Menu ---> key to the left of Total. 4. Wait for the Total screen to appear. (See Figure Totalizer Screen, below) 5. Press SCROLL until the cursor moves to the correct volume units. 6. Press ENTER. 7. Press the Menu ---> key to the left of Flow to return to the Flow Screen Change the totalizer multiplier. 1. Press the Menu ---> key to the left of Diags in the Flow screen. 2. Wait for the Limits screen to appear. 3. Press the Menu ---> key to the left of Total. 4. Wait for the Total screen to appear. (See Figure Totalizer Screen, below) 5. Press ENTER until the cursor moves to the multiplier box. 6. Press SCROLL until the desired multiplier appears in the box. 7. Press ENTER, to set the multiplier. 8. Press the Menu ---> key to the left of Flow to return to the Flow screen Reset the totalizer. 1. Press the Menu ---> key to the left of Diags in the Flow screen. 2. Wait for the Limits screen to appear. 3. Press the Menu ---> key to the left of Total. 4. Wait for the Total screen to appear. (See Figure Totalizer Screen, below) 5. Press ENTER twice, to move the cursor to Reset?. 6. Press the SCROLL key until Reset? reads Yes. 7. Press ENTER. 8. Wait while the totalizer resets. 9. Press the Menu ---> key to the left of Flow to return to the Flow Screen. 14 FIGURE TOTALIZER SCREEN

22 3.5 The 4-20 ma Loop Range the 4-20 ma loop. 1. Press the Menu ---> key to the left of 4-20 ma in the Flow screen. 2. Wait for the 4-20 ma Range screen to appear. (See Figure 3.5a ma Range Screen, below) NOTE Use the BACK-SPACE key, to the right of the number keys, for correcting errors when entering numbers. 3. Enter the minimum flow using the number keys. 4. Press ENTER. 5. Enter the maximum flow using the number keys. 6. Press ENTER. 7. Press the Menu ---> key to the left of Flow to return to the Flow screen. FIGURE 3.5A 4-20 MA RANGE SCREEN 15

23 Current Loop Terminals Black Red - + Remote Device or Current Meter - + Battery or Power Supply FIGURE 3.5B CURRENT LOOP FIGURE 3.5C MA CALIBRATION SCREEN FIGURE 3.5D MA CALIBRATION TEST SCREEN 16

24 3.5.2 Calibrate the 4-20 ma loop. NOTE You need a calibrated current meter to perform this procedure. In the loop powered configuration, you will also need a DC power source. 1. Set up a calibration current loop. (See Figure 3.5b - Current Loop, facing page) 2. IF the meter is not on a pipe with flow, THEN press the Menu ---> key to the left of Next two times, AND press the ENTER key four times to access the Flow screen. 3. Press the Menu ---> key to the left of 4-20 ma in the Flow Screen. 4. Wait for the Range screen to appear. (See Figure 3.5a ma Range Screen, page 15) 5. Press the Menu ---> key to the left of Calib. 6. Wait for the Calibration screen to appear. (See Figure 3.5c ma Calibration Screen, facing page) 7. Enter the value, in ma, from the current meter that corresponds to the zero scale, using the number keys. 8. Press ENTER 9. Enter the value, in ma, from the current meter that corresponds to the full scale, using the number keys. 10. Press ENTER. 11. Wait for the Test screen to appear. (See Figure 3.5d ma Calibration Test Screen, facing page) 12. Press the SCROLL key or the BACK-SPACE key to move the current bar in the Test screen. 13. Verify that the flowmeter follows the changes. 14. IF the flowmeter does not follow the changes, THEN press the Menu ---> key to the left of Calib AND repeat steps IF the flowmeter follows the changes, THEN press the Menu ---> key to the left of Flow to return to the Flow screen. 17

25 3.6 Datalogger er Set the data logger time and date. 1. Press the Menu ---> key to the left of Log in the Flow screen. 2. Wait for the Log screen to appear. (See Figure 3.6b - Log Screen, facing page) 3. Press the Menu ---> key to the left of Time. 4. Wait for the Time screen to appear. (See Figure 3.6a - Time Screen, below) 5. Type the correct hour using the number keys. 6. Press ENTER. 7. Type the correct minutes using the number keys. 8. Press ENTER. NOTE Use the BACK-SPACE key, to the right of the number keys, to correct errors when entering numbers. 9. Type in the day using the number keys. 10. Press ENTER. 11. Press SCROLL until the correct month appears. 12. Press ENTER. 13. Type in the correct year using the number keys. 14. Press ENTER. 15. Press the Menu ---> key to the left of Flow to return to the Flow screen OR Log to go to the Log screen 18 FIGURE 3.6A - TIME SCREEN

26 3.6.2 Set up and start the data logger. NOTE You cannot select the file to store a specific log set. The flowmeter saves data in sequenced files 0 to 9. The flowmeter sequences to the next file each time the logger is turned on or a file logs more than 9000 points. 1. See procedure (Set the data logger time and date) on page 18, to set the time and date. 2. Press the Menu ---> key to the left of Log in the Flow screen. 3. Wait for the Log screen to appear. (See Figure 3.6b - Log Screen, below) 4. Press SCROLL until the cursor moves to the desired time between points. ( min/point) 5. Press ENTER. 6. Press SCROLL until the cursor moves to ON, next to Log, at the bottom of the screen. 7. Press ENTER 8. Press the Menu ---> key to the left of Flow to return to the Flow Screen. FIGURE 3.6B - LOG SCREEN 19

27 FIGURE 3.6C- COMM PORT PROPERTIES FIGURE 3.6D - SELECT LOG FILE 20

28 3.6.3 Download data from the logger. NOTE The following procedure assumes: - HydraLink software is installed - You have basic operating knowledge of computers and Windows 1. Connect the communication cable from the flowmeter to the RS232 port on the computer. 2. Start the HydraLink program. 3. Wait for the Communications Established window to appear. 4. Click on the OK button. 5. IF the Communication Established window appears, THEN go the step IF the Communications Failed window appears, THEN check the security of the cable, AND make sure the flowmeter is on. 7. Click on OK. 8. WHEN the CommPort Properties window appears, THEN make sure the correct comm port number appears in the Port option, AND enter the correct CommPort properties, show in Figure 3.6c - CommPort Properties, on the facing page. 9. Wait for the Communication Established window to appear. 10. IF the Communication Established Window still does not appear, THEN contact your Polysonics representative. 11. WHEN the HydraLink window appears, THEN click on the Log File 0 button. (See Figure 3.6d - Select Log File, facing page) 12. Select the log file you want to download. 13. Click on the Get Log button in the upper right corner of the HydraLink window. 14. Wait for HydraLink to complete downloading. NOTE The logger saves data in sequenced files 0 through 9. Once all the files are full the logger restarts the sequence and overwrites the files beginning with log file 0. Perform procedure (Save the log files), on page 23, to ensure data is not lost. 21

29 3.6.4 Zoom in on data. 1. Click on the Zoom button. (See Figure 3.6e - Zoom Button, below) 2. Press the arrow buttons at the bottom of the data graph to view data. 3. Return to the original view by clicking on the Zoom button again Zoom in on a selection of data. 1. Move the arrow to a point on the screen. 2. Depress the mouse button. 3. Drag the mouse to enclose a range of data you want to zoom in on. (See Figure 3.6f - Data Zoom, below) 4. Release the mouse button. 5. Repeat steps 1-4 until you achieve your desired zoom view. 6. Return to the previous view by double clicking on the Zoom button. (See Figure 3.6e - Zoom Button, below) FIGURE 3.6E - ZOOM BUTTON 22 FIGURE 3.6F - DATA ZOOM

30 3.6.6 Save the log files. NOTE Saved datalog files are delimited by commas, as it applies to opening the files into a spread sheet programs. 1. Perform procedure (Download data from the logger), on page Click on File in the HydraLink window. (See Figure 3.6g - Save Log, below) 3. Select Save Log. 4. Use standard Windows procedures to save the log file on your computer or floppy disk. NOTE The logger saves data in sequenced files 0 through 9. When all the files are full the logger restarts the sequence and overwrites the files beginning with log file 0. FIGURE 3.6G SAVE LOG 23

31 3.6.7 Retrieve a saved file. NOTE If the meter is not connected to your PC, then click on OK in the Communications Failed AND Cancel in the CommPort Properties windows. 1. Click on File in the HydraLink window. (See Figure 3.6h - Load Log, below) 2. Select Load Log. 3. Use standard Windows procedures to retrieve the log file. NOTE The logger saves data in sequenced files 0 through 9. When all the files are full the logger restarts the sequence and overwrites the files beginning with log file 0. FIGURE 3.6H - LOAD LOG 24

32 3.6.8 Erase all data in the log files. Performing the following procedure erases ALL the log information stored in the flowmeter. You cannot erase a specific log file. NOTE It is not necessary to create space in log files for new log information by erasing data. The logger saves data in sequenced files 0 through 9. When all the files are full the logger restarts the sequence and overwrites the files beginning with log file 0. Perform procedure (Save the log files), on page 23to ensure data is not lost. 1. Click on Log in the HydraLink window. (See Figure 3.6i - Erase All, below) 2. Select Erase All from the pull down menu. 3. IF you are sure you want to erase all 10 log files, THEN click on the Yes button in the Erase All window, AND wait while the logger erases all the files. 4. IF you do not want to erase all 10 log files THEN click on the No button in the Erase All window, AND click on OK in the Erase Aborted Window. FIGURE 3.6I ERASE ALL 25

33 4. Maintenance 4.1 Flowmeter Maintenance The Hydra SX30 Portable Flowmeter is easy to maintain. The DFD transducers and flowmeter are factory service only components and maintenance free. The following Flowmeter Maintenance table describes: system components appropriate maintenance actions a recommended maintenance schedule TABLE 4.1 COMPONENT MAINTENANCE AND SCHEDULE Component Recommended Maintenance How Often T ransducers! none, this is a service item ---- C oupling compound! add more compound whenever:! compound diminishe s! repositioning transducer s! relocating meter F lowmeter! none, this is a service item ---- P ipe strap! r e-tighte n! once yearly Cable connections! make sure connections are secure! remove any residue build-up within the connection! as part of your facility' s maintenance schedule 26

34 4.3 Upgrade Meter Software The most current software is installed in the meter at shipment. Upgrade the software as newer versions become available, using the RS232 port and a remote terminal. The most current versions of the following software: Win Loader - used to upgrade SX30 meter software SX30 meter software HydraLink datalogger software, are available on the Polysonics web-site, at the address below, or contact your Polysonics Service Representative to inquire about software upgrades. Polysonics, Inc. Attn: Service Center Landsbury Dr., Suite 300 Houston, TX USA Telephone: (281) Fax: (281) Web: 27

35 5. Troub oubleshooting 5.1 Different Modes of Operation 1. Start Up Mode - initialize meter 2. Learn Mode - meter learns the system parameters -- THERE MUST BE FLOW in the pipe during learn mode 3. Operating Mode - read flow and monitor conditions 5.2 Learn Mode Warnings Table 5.2, below, describes the Learn Mode warning and appropriate corrective actions. Perform the corrective actions in the sequence that is presented. TABLE 5.2 LEARN MODE WARNINGS AND RECOMMENDED CORRECTIVE ACTIONS Warning Corrective Action Invalid Signal, Can't Learn 1. A 2. B 3. C 4. D 5. E (see Table 5.3c - Action Codes, page 30) No Flow, Can't Learn 1. Check for flowing fluid 2. Make sure pipe is full 3. Check BNC connections 4. Restart meter go into learn mode, check to see 5. E (see Table 5.3c - Action Codes, page 30) if warning is gone Warning Low S Strength 1. Shut meter down 2. A 3. B 4. C (see Table 5.3c - Action 5. D 6. E Codes, page 30) Warning Poor S Quality 1. Let meter enter operating mode 2. See procedure 6.1 (Check the FFT), page 33 28

36 5.3 Operating Mode Warnings In operating mode, the warnings indicate a level of severity and a reason for fault. Table 5.3a (Operating Mode Warnings and Indicated Level of Severity), below, describes: operating mode warning messages the level of severity indicated. Table 5.3b (Operating Mode Faults & Corrective Actions), on page 30, describes: faults that caused the warning recommended corrective actions. Warning TABLE 5.3A OPERATING MODE WARNINGS AND INDICATED LEVEL OF SEVERITY W arning! flow reading is marginal A larm! flow reading is unreliabl e Level of Severity Failed/No Flow! the meter will not read flow! the meter will continue to read zero flow until the fault clears NOTE! A "Failed" warning is normal under no-flow conditions. The meter will recover when the flow resumes. 29

37 TABLE 5.3B OPERATING MODE FAULTS & CORRECTIVE ACTIONS Faults PQ Poor Signal Quality FS Failed Signal Status IS Invalid Signal Corrective Actions Note! If more than one of the faults appear then perform the order actions for each in 1. See procedure 6.1 (Check FFT), page Perform sequence B,C,D,E (see Table 5.3c - Action Codes, below) 1. Perform sequence B,C,D,E (see Table 5.3c - Action Codes, below) 2. See procedure 6.1 (Check FFT), page See section 5.4 (Service), page See procedure 6.1 (Check FFT), page See section 5.4 (Service), page 31 Action A B C D TABLE 5.3C ACTION CODES Action Description 1. Turn off meter 2. Apply more coupling compound 3. Tighten pipe strap 4. Start the meter see if warning clears 1. Reposition transducers 2. See if signal strength increases 3. See if fault clears 4. Restart the meter 1. Relocate transducers 2. See if signal strength increases 3. See if fault clears 4. Restart the meter 1. Turn off meter 2. If pipe surface is rough or coated, then grind the pipe surface 3. Remount the transducers 4.Start the meter see if warning clears 30 E 1. See section 5.4 (Service), page Contact service representative

38 5.4 Service Contacting the Polysonics Service Center To expedite service by helping the service technician to better diagnose the problem, please have the following information ready before contacting the factory. 1. Signal Strength (%SS - from the bottom of Flow screen) 2. Process Temperature 3. Transducer Mounting Configuration 4. Power Consumption 5. Pipe Orientation 6. Fluid Type 7. Pipe OD and ID 8. Pipe Material 9. Liner Material 10. Liner Thickness 11. Model Number 12. Serial Number Polysonics, Inc. Attn: Service Center Landsbury Dr., Suite 300 Houston, TX USA Telephone: (281) Fax: (281) Web: 31

39 (section 5.4 Service continued...) Factory Service If Polysonics determines that the problem cannot be resolved over the phone, return the entire unit to Polysonics. Contact the Polysonics Service Center before returning an instrument for repair. Mark the RMA number issued by the service representative on the outside of the shipping box. The receiving dock will not accept shipments without an RMA number. You must include a letter fully explaining the symptoms of the failure as well as details describing the application where the unit was being operated (type of fluid, pipe size, pipe material, fluid velocity, temperature, etc.). Service cannot be adequately performed until the Service Center receives this written information. To ship an instrument to Polysonics: 1. Ensure that the instrument is well packed (in its original shipping box, if available). 2. Include the letter of explanation. 3. Write the RMA number of the outside of the shipping box. 4. Send the unit freight-paid to the Service Center: Polysonics, Inc. Attn: Service Center Landsbury Dr., Suite 300 Houston, TX USA Telephone: (281) Fax: (281) Web: 32

40 6. Troub oubleshooting Procedures 6.1 Check k the FFT 1. Press the Menu ---> key to the left of Diags in the Flow screen. 2. Wait for the Limits screen to appear. 3. Press the Menu ---> key to the left of FFT in the Limits screen. 4. See Figure 6.1a-f (FFT Diagrams) on pages 34 and 35 to determine the FFT condition. 5. See Table 6.1 (FFT Analysis and Corrective Actions), below, to determine the corrective action. 6. Press the Menu ---> key to the left of Flow to return to the Flow screen. Table 6.1 FFT Analysis and Corrective Actions FFT Shape Possible Causes Corrective Actions Ideal Doppler ----! restart the the meter Broad Noise Band Steady Noise Spike Fluctuating Doppler No Doppler Reflection I or II! poor pipe coupling! multiple moise generators! electromagnetic noise! constantly changing flow! noise! ultrasound signal is not transmitting! A,B,C,D (see Table 5.3c Action Codes, page 30)! relocate transducer s! shut off noise source! shut off noise source! relocate transducer s! increase damping, see procedure 6.5 (Set the damping parameter), page 37! relocate transducer s! A,B,C,D (see Table 5.3c Action Codes, page 30) 33

41 Ideal Doppler shape Steady noise spike with Doppler Broad band noise FIGURES 6.1 A,B,C FFT DIAGRAMS 34

42 Fluctuating Doppler profile No Doppler reflection I No Doppler reflection II FIGURES 6.1 D,E,F FFT DIAGRAMS 35

43 6.2 Set the low w flow w cutoff. 1. Press the Menu ---> key to the left of Diags in the Flow screen. 2. Wait for the Limits screen to appear. (See Figure Limits Screen, facing page) 3. Press ENTER until the blinking cursor appears in the Low Flow Cutoff box. 4. Enter the rate for low flow using the number keys. 5. Press ENTER 6. Press the Menu ---> key to the left of Flow to return to the Flow screen. 6.3 Perf erform an on-site calibration. NOTE Determine the flow using another source before performing the following procedure. 1. Calculate the site calibration adjustment. (actual flow Hydra flow) 2. Press the Menu ---> key to the left of Diags in the Flow screen. 3. Wait for the Limits screen to appear. (See Figure Limits Screen, facing page) 4. Press ENTER until a cursor appears in the Site Cal box. 5. Enter the site calibration adjustment, calculated in step Press ENTER 7. Press the Menu ---> key to the left of Flow to return to the Flow screen. 36

44 6.4 Reset the factory y settings. 1. Shut off the meter. 2. Turn the meter back on. NOTE All of the settings will reset except the 4-20 ma calibration, the pipe ID and the flow units/time base 6.5 Set the damping parameter. 1. Press the Menu ---> key to the left of Diags in the Flow screen. 2. Wait for the Limits screen to appear. (See Figure Limits Screen, below) 3. Enter the amount of damping (0-99 units, 1 unit = 15 seconds) using the number keys. 4. Press the Menu ---> key to the left of Flow to return to the Flow screen. NOTE The Smart Filter used by this meter, allows the damping function to smooth small fluctuations without diminishing the meter s response to large flow changes, even at high damping settings. FIGURE 6.5 LIMITS SCREEN 37

45 7. Appendix 7.1 Hydra SX30 Manual ual Symbol Descriptions Symbol NOTE Description Note: Indicates informatio n that is important for the proper operation of the instrument. Caution: Indicates informatio n that is important to prevent damage to the instrument. See additional information WARNING Warning: Indicate s information that is important to prevent harm to the operator and/or damage to the instrument. 7.2 Pipe ID Obtain the Pipe ID. If you do not know the pipe ID, then try to get the Outside Diameter (OD) by one of the following methods: 1. Read the pipe Outside Diameter (OD) and schedule on the pipe 2. Read the OD and schedule from system drawings 3. Measure the pipe circumference using a tape measure, and divide the measured circumference by 3.14 (Circumference 3.14) 4. For an approximate pipe ID use the OD with the charts in section (Pipe ID Charts), on pages For a more accurate pipe ID use an ultrasonic pipe thickness gauge (part #0704/0187, available from Polysonics), AND perform the following calculation: 38 pipe ID = pipe OD (2 x pipe thickness)

46 Pipe ID Charts X STG Std. W all Sched Sched Sched Sched Sched Sched Sched Sched Sched Sched. 10 (Light Wall) Sched Outside Diameter (OD) Table B-1 Steel, Stainless Steel and PVC Pipe Standard Schedules Inside Diameter (ID) and Outside Diameter (OD) in Inches Nominal Pipe Size ( )

47 Nominal Pipe Size () Table B-2 Cast Iron Pipe Standard Classes Inside Diameter (ID) and Outside Diameter (OD) in Inches Class A Class B Class C Class D Class E Class F Class G OD ID OD ID OD ID OD ID OD ID OD ID OD ID OD NOTE: For pipes with cement linings, reduce the pipe inside diamete r by two times the lining thickness. Standard and double cement thicknessesare lining listed in Table B-3. Class H ID

48 Table B-3 Ductile Iron Pipe Standard Classes Inside Diameter (ID) and Outside Diameter (OD) in Inches Inside Diameter Nominal Pipe Size Outside Diameter (OD) Class 50 Class 51 Class 52 Class 53 Class 54 Class 55 Class Note: For pipes with cement linings, reduce the pipe inside diameter by two times the lining thickness listed above. Cement Lining (See Note) Standard Thickness Double Thickness

49 7.3 Application Signal Quality and Signal Strength Signal quality and signal strength are indicators of how well suited an application is to a Doppler flowmeter. To determine the quality of your application: 1. Look at the bottom right corner of the Flow screen. 2. Note the SQ number and the %SS number. 3. Refer to Figure 7.3b - Signal Quality/Signal Strength Chart, below, to determine the quality of your application. Excellent Signal Quality (SQ) Failure Adequate Good Signal Strength (%SS) FIGURE 7.3B SIGNAL QUALITY/SIGNAL STRENGTH CHART Failure the meter is not reading flow Adequate minimum quality, flow readings may be inconsistent or inaccurate Good flow readings are fairly accurate and consistent Excellent flow readings are accurate and consistent To improve signal quality and signal strength see Table 5.3c (Action Codes), on page

50 7.4 Hydra SX30 Meter Specifications Physical Specifications Enclosure Transducers Weight High impact structural copolymer polypropylene. Watertight and corrosion proof. MIL-C-4150J Enclosure and cable are suitable for non-submersible service. Approximately 11 lbs (4.9 kg) with 12-hour battery Performance Specifications F low Range 0.2 to 32 FPS (0.06 to 9.7 MPS) Accuracy Pipe Size " 200 in (5 m) maximum " 0.5 in (13 mm) minimum Functional Specifications Outputs Power Supply " 4-20 ma (into 100 ohms), 12 bits, 5kV optically isolated, loop or self powered " RS232 serial interface using DB25 connecto r +/- 2% of flow under controlled conditions Charger input voltage supply: " 15 1 amp typical " 2 amp maximum " mains supply voltage fluctuations to charger not to exceed +/- 10% of the nominal supply voltage Auxiliary supply voltage: " 15 2 amp typical " must be an SELV source auxiliary input terminals are supplied from an SELV source as pe IEC Annex H " r Keypad 19-key with tactile action Display 240x60 graphic LCD display with backlight Datalogger Transmitter Temperature Range Transducer Temperature Range 90,000 data points in 10 files of 9,000 points each. Programmable in minute intervals. Data is time/date stamped " 5 o o C to 40 C, CSA approved o o " -20 C to +60 C, non CSA approved " 40 to +250 " 40 to +350 o o - F (-40 to +122 C) o - F using optional high temperature transducer blocks Altitude Maximum 2000 m Humidity Range 0 to 99% relative humidity, non condensing Environmental Operating Conditions " Pollution degree: 2 " nstallation category: I I for meter II for battery charger 43

51 7.5 Hydra SX 30 menu u tree POLYSONICS 5 SEC RANGE CALIB TEST FLOW PIPE ID ENT ER SET UP DIAGN LO G 4-20MA FLO W UNITS/ TIME BASE ENT ER LEARN MODE FLOW LO G TREND TIME FLOW LI MITS FFT TO TALZ FLOW 44