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Manual PH731 / PH730

1. seeeseeeeeeeesseees sienne nennen nena annnm nnn nnn nin tn ansia sss a NENNEN 43 Capture Hood Parts Identification sssssssssssssssssseeeeee enne nennen nennen nnns nnne ns 43 Capture Hood Assembly nic cc nied ieee Are av ee da aac edd da d a d A cea dee 43 Alternate Hood Installation A 45 Direct Inflow Measurement Hood for Biological Safety Cabinets 0 cccccceeceeeeeeeeseeeeeteeeeeeeees 49 Chapter 6 Flow Measurements Using the Capture Hood eene 55 Single Reading Measurements sss eene nnn enne nennt nr en tenr enne 55 Running Average Measuremente ener nnne man aE ae NEEE eSEE ener nent 56 Capture Hood Measurements non backpressure compensatedQ sse 56 Backpressure Compensated Measurements esent 56 ERROR DISDIay iu EE 57 Chapter 7 Maintenance and Troubleshooting aeeeeeeeeeeeeses esee nenne nennen nena nnnm n nennen 59 elei e ojo TE 59 lte rel Terentii E cT 59 MENO TET A 59 EE 59 ee EE 59 Appendix A Back Pressure s sccccsseeeceesseeeeeenseeeeenseeeeeenseeeeeensueeeeensueeeeenseeeeeensueeeeensneeeeenseeeeeenseeeenenses 61 Verifying Flow Measurements entente tntn enne nnns sitne entente sinn snnt nnns 61 Appendix B Traversing a Duct to Determine Average Air Velocity or Volume 63 Where to Take the Measurement eseeeeiseeesesiseeee essen nennen nnne
2. Flow Setup Actual Std Setup Settings Data Logging Bluetooth Functions Applications Cf Selection Calibration MENU UI DATA LOGGING HF Measure ode Display Mode Manual RunAvg Log Settings Choose Test VIEW DATA II Name Test lentus Tost Test 022 View Data View Stats Delete Data View Samples Memory Print Test Use the lt and gt arrow keys to view samples of all the measurement parameters stored in a Test ID TESTO22 UU TESTO22 THIS TEST O22 WU Velocity TA Temperature rh Sample 1 272 ft min Sample 1 73 8 F Sample 1 28 6 rh Sample 2 260 ft min Sample 2 74 3 F Sample 2 28 5 rh Sample 3 219 ft min Sample 3 74 1 F Sample 3 28 4 rh lt PREVIOUS NEXT CPREVIOUS NEXT PREVIOUS NEXT gt The meter can send this data to the optional Model 8934 wireless printer or PC capable of Bluetooth communications To use the PRINT key Bluetooth communications must be established between the meter and the Model 8934 wireless printer or PC set up with Bluetooth communications Print Test Press to print all statistics and samples for the selected Test ID MENU IIT Pressure Tool Display Setup Flow Setup DATA LOGGING IIT Actual Std Setup Measure Settings ode Display Mode Manual RunAvg Data Logging Log Settings Bluetooth Functions Choose Test VIEW DATA TT Applications Name Test Ose Test Test 022 Cf Select
3. Setup Pressure K factor When the Pressure Tool is set to Flow K factor up to four 4 user adjustable K factors can be defined within the Flow Setup menu Use the arrow keys to select a Kfactor or to make changes and press the 4 key to accept MENU Pressure Tool Pressure K factor Display Setup Flow Setup 7 1 ENTER SETTINGS TELE Actual Std Setup Settings Select Kfactor 1 Selectpre programmed Data Logging Kfactor 1 100 0 Kiactor Bluetooth Functiond Kfactor 2 100 0 Program roca Applications Kfactor 3 EU GE Cf Selection Kfactor 4 100 0 999 9 Calibration lt PREVIOUS NEXT When measuring flow with a Kfactor the value can be quickly changed by pressing the A or W key 1 Set Flow to PRIMARY in Display Setup menu 2 Press the Aor Wkey to access Kfactor adjustment screen 3 Make adjustments with arrow keys and press to accept 24 Airflow Instruments ProHood Capture Hoods PH730 PH731 Press Kfact allows for calculating flow rate from diffusers or flow stations with pressure taps using the instruments pressure ports and Kfactors The Kfactors are obtained from the diffuser or flow station manufacturer For more information refer to Application Note AF 114 Actual Standard Setup Choose Actual Standard measurements and parameters in the Actual Standard Setup menu The instrument measures the actual barometric pressure using an internal sensor The temperature
4. The number 1 and 5 channels also have a wing nut at the straight end which will mate with an angle and studs on the ends of numbers 2 5 and 6 to form the longer frame sides see Figure 19 46 Airflow Instruments ProHood Capture Hoods PH730 PH731 Figure 19 1 ft x 5 ft 305 mm x 1525 mm hood and frame The support poles always cross as pairs at the front and back of the fabric hood For the 1 ft x 5 ft 305 mm x 1525 mm the support poles are inserted into the inside ferrule locations Chapter 5 Changing Capture Hoods 47 Figure 20 3 ft x 3 ft 915 mm x 915 mm hood and frame The support poles always cross as pairs at the front and back of the fabric hood For the 3 ft x 3 ft 915 mm x 915 mm the support poles are inserted into the outside ferrule locations Figure 21 Frame Corner Assembly 48 Airflow Instruments ProHood Capture Hoods PH730 PH731 Figure 22 Frame Side Coupler Assembly Each hood is constructed in a trapezoidal shape sewn together so that one open end forms a round attachment to the base and the other forms a square or rectangle large enough to fit its matching frame assembly Around the frame end of the hood an elastic shock cord has been sewn into the hood This cord is of a size such that it can be pushed into the open side of the U shaped channels of th
5. US Pressure Tool Display Setup T PRESSURE TOOL Wu Flow Setup Actual Std Setup Capture Hood Settings Hood BP Comp Data Logging Bluetooth Functions Applications Cf Selection Calibration 22 Airflow Instruments ProHood Capture Hoods PH730 PH731 Display Setup Display Setup menu is where you will setup the desired parameters to be displayed on the instrument screen With a parameter highlighted you can then use the ON arrow key to have it show up on the instrument screen or select the OFF arrow key to turn off the parameter Use PRIMARY arrow key to have a parameter show up on the instrument screen in a larger display A total of five 5 parameters can be shown on the display one 1 primary large font and four 4 secondary Parameters shown in the Display Setup screen are dependent on the type of probe currently connected e When set to PRIMARY measurement will be the large font on the display e When set to ON measurement will be displayed as a secondary parameter up to 4 can be displayed e When set to OFF measurement will not be displayed MENU MF Pressure Tool Display Setup 7 gt DISPLAY SETUP Flow Setup Actual Std Setup Pressure Settings Baro Pressure Data Logging Velocity Pitot Bluetooth Functions Flow Pitot round duct Applications Cf Selection Calibration lt OFF ON OFF ON ON PRIMARY gt Display Setup Screen with Pitot Tube Selected a
6. assist with wireless connections to other Bluetooth capable devices Discover Devices MENU MF Pressure Tool Display Setup Flow Setup Actual Std Setup Settings Data Logging Bluetooth Functions gt BLUETOOTH FUNCT ELE sn Discover Devices election zi Calibration Discoverability Enable PINcode 0000 AutoConnects 1 Start the Bluetooth process of finding other devices from the meter Discoverability Describes whether another device can discover the meter Options include Disable The instrument is not discoverable by other devices Temporary Allows the instrument to be discoverable until another device pairs with it or until the instrument power is turned off and back on Enable Makes the instrument discoverable indefinitely Chapter 4 Menu Setup and Navigation PINcode The PINcode is a security key to be entered into the computer if prompted The factory default PINcode is 0000 Note PINcode must be set to 0000 in order to use 8934 printer AutoConnects Specifies how many times the instrument will attempt to reattach to a paired device after the power is turned on For this option the instrument Discoverability setting must be enabled Settings are 0 to 5 times For more information on establishing Bluetooth connections to a PC or 8934 printer refer to Application Note AF 150 Applications This menu option includes specialized measur
7. calling Customer Service or by visiting the web site at www tsi com vi This page intentionally left blank Chapter 1 Introduction The PH730 PH731 are lightweight and easy to use instruments packaged with a variety of accessories for measuring pressure temperature humidity air velocity and air volume Features of the micromanometer include Q Q Oocoooovo Single function keys for ease of use Auto zero for pressure measurements auto density correction and back pressure compensation when used with a capture hood User selectable English and metric units Conversions between actual and standard flow Discrete or continuous display and data logging capabilities Output port for downloading to a printer or a PC Bi directional Bluetooth communications to 8934 printer or PC Powered by AC adapter or batteries rechargeable NiMH or alkaline Full field calibration Designed for a Q LI Q Test and balance professionals Mechanical contractors Industrial hygienists Plant engineers and facilities maintenance personnel Applications include a Q Q LI Test balance or commission HVAC systems Test clean rooms and biological safety cabinets Measure fume hood or filter face velocity Measure pressure temperature relative humidity air velocity or air flow WHILE USING THE PROHOOD CAPTURE HOOD TO TEST AIR FLOW IN DUCTS YOU MAY COME INTO CONTACT WITH OR BE EXPOSED TO DUST POLLEN MOLD F
8. in 46 cm pitot tube is included with the PH730 or PH731 kits Alternate sizes are available Static Pressure Probe The static pressure probe is primarily used to obtain static pressure measurements within ductwork Differential pressure measurements across a filter or coil can also be performed by placing one probe upstream and the other downstream of the filter or coil ProHood Capture Hoods Capture hoods are used to obtain volumetric air flow measurements through diffusers registers and grilles Capture hoods are available in a kit with one 2 ft x 2 ft 610 mm x 610 mm fabric hood frame and base assembly Alternate hood sizes are available Descriptions and part numbers can be found in Table 2 of Chapter 2 of this manual 4 Airflow Instruments ProHood Capture Hoods PH730 PH731 Optional Tools This section gives a brief description of optional tools for the micromanometer Velocity Matrix The velocity matrix is used to obtain area averaged multi point air velocity measurements useful in laboratory hood face velocity testing filter face velocity testing and other applications such as kitchen exhaust Air Flow Probe The air flow probe model 800187 is an 18 46 cm straight pitot tube used to obtain single point air velocity or air volume measurements in ductwork Temperature Humidity Probe The temperature humidity probe is used to obtain temperature measurements over the range of 14 to 140 F 10 to 60 C humi
9. measuring velocity or flow and the pressure at that velocity is too high will appear on the A valid temperature is needed to Verify a probe that measures display for velocity or perform the standard or actual temperature is connected to the volume velocity volume correction meter or set Temp Source to Entered in the Actual Std menu and manually input temperature 60 Airflow Instruments ProHood Capture Hoods PH730 PH731 Appendix A Back Pressure The quantity of air flowing through a supply diffuser or a return grille is reduced to some extent whenever a capture hood is placed over the flow opening The amount of flow reduction will vary depending on the combined effects of the diffuser grille resistance the capture hood resistance system pressure and the flow rate The PH731 capture hood features a built in capability to make flow measurements which are compensated for the effects of the capture hood induced back pressure This is accomplished by taking two sequential flow measurements at a diffuser or grille the first with the back pressure flap OPEN and the second with the flap CLOSED The resulting Backpressure Compensated Flow displayed by the meter represents the air flow through the diffuser grille in its original state that is without the presence of the capture hood Verifying Flow Measurements It is always the recommended practice to verify the flow measurements obtained with a capture hood by perform
10. the Micromanomeier nennen 11 Attaching the Micromanometer to the Capture Hood Base 12 Connecting the Velocity Matrix to the Micromanometer enne 13 Connecting the Air Flow Probe to the Micromanometer nennen 14 Connecting the Base Temperature Probe Temperature and Humidity Probe or Thermoanemometer Probe to the Micromanometer sss 15 Using the Telescoping Thermoanemometer Probes or Temperature and Humidity Probe 15 Extending the Probe ite E he rr tdt rado em cete ada Pectus edi tt 15 Retracting the Probe iiae r tapee bee dert ed oe re ede ede pce n d o Edo 16 Chapter 3 Getting Started nue ee Eder dees 17 Keypad ned Le 17 COMMON RRE 18 Chapter 4 Menu Setup and Navigation cccsccssscesseeeeeeeeeeeeeseaesesneeeneneeseaesesaeeasneeeeeeeeseesaneeeenseeeees 21 MM 21 T cell ML M aN 21 Display Setup EEN 23 Flow Setup Pitot Tube AF Probe straight pitot tube or Thermoanemometer Probe 24 Actual Standard Setup hera ce ede du qe eg ea du AM e dua te eg ela 25 llc ERE 26 Data Logging WEE 27 Blu etooth FUrictloris i da ieri iet eta Fh erede tte Cea d ied dela ede edP a ede e dirt a TE Fede E eda dd 37 eler pL 38 Calibration Factor Cf Gelechon nennen nnne nnns nnne nens 40 lee EE 40 Printing Data Using the Portable Pinter 41 LogDat CH Downloading Software sse ener enne nnn snnt enne 41 Chapter 5 Changing Capture Hoods
11. 0 ft min gt 0 25 m s 3 of reading 7 ft min 12 m h gt 50 ft min gt 85 m h 3 RH 0 5 F 0 3 C in H2O pa hPa kPa mm Hg in Hg cm Hg mm H20 cm H2O ft min m s ft min m h m min I s degrees F degrees C Specifications are subject to change without notice Statistics Data Storage Logging Interval Response Time Dimensions manometer only Pressure connection Weight with batteries Power requirements Battery life Recharge time min max average 26 500 samples time and date stamped user selectable 2 to 8 seconds differential pressure sensor 7 4 in x 4 5 in x 2 3 in 18 8 cm x 11 4 cm x 5 8 cm in OD straight ports with barbed ends for use with 3 16 in 4 76 mm ID flexible tubing PH730 17 oz 0 5 kg PH731 7 4 Ib 3 4 kg four AA size cells rechargeable NiMH included or alkaline or AC adapter included 7 5 VDC 1 6 A regulated minimum of 12 hours typical 4 hours internal charger e AIRFLOW INSTRUMENTS Airflow Instruments TSI Instruments Ltd Visit our website at www airflowinstruments co uk for more information UK Tel 44 149 4 459200 Germany Tel 49 241 523030 France Tel 33 491 11 87 64 P N 6005724 Rev D 2014 TSI Incorporated Printed in U S A
12. 5 Samples lt PREVIOUS Test 005 38 Samples Test 006 12 Samples Test 007 0 Samples lt gt NEW DATES View Stats Displays statistics average minimum and maximum of a selected Test ID and the number of samples date and time the samples were taken MENU MIE Pressure Tool Display Setup Flow Setup DATA LOGGING M Actual Std Setup Measure Settings ode Display Mode Manual RunAvg Data Logging Log Settings Bluetooth Functions Choose Test VIEW DATA TETTE Applications Name Test lem Ts Test 022 Cf Selection View Data View Stats Calibration Delete Data View Samples Memory Print Test Use the lt and gt arrow keys to view statistics of all the measurement parameters stored in a Test ID TEST 022 Mr TEST 022 Tr TEST 022 TITLE Velocity TA Temperature 9 RH Avg 250 ft min Avg 74 0 F Avg 28 5 RH TA Min 219 ft min Min 73 8 F Min 28 4 RH TA Max 272 ft min Max 74 3 F Max 28 6 RH TA 3t Samples 3 Samples amp 3t Samples 3 03 15 12 09 01 39 AM 03 15 12 09 01 39 AM 03 15 12 09 01 39 AM lt PREVIOUS NEXT gt lt PREVIOUS NEXT gt lt PREVIOUS NEXT gt Example TEST 022 has three 3 samples each sample consists of a velocity temperature and relative humidity reading Use the lt or gt keys to view statistics of each measurement parameter Chapter 4 Menu Setup and Navigation 33 View Samples Pressure Tool Display Setup
13. AIRFLOW INSTRUMENTS PROHOOD CAPTURE HOOD MODELS PH 30 PH731 OWNER S MANUAL P N 6005724 REVISION D OCTOBER 2014 6 AIRFLOW e gt E Be Model PH731 ProHood Model PH730 Micromanome ter Capture Hoo shown with standard and optional accessories A INSTRUMENT START SEEING THE Eu FIL L REGISTERING TODAY Thank you for your TSI instrument purchase Occasionally TSI releases information on software updates product enhancements and new products By registering your instrument TSI will be able to send this important information to you http register tsi com As part of the registration process you will be asked for your comments on TSI products and services TSI s customer feedback program gives customers like you a way to tell us how we are doing e UNDERSTANDING ACCELERATED TSI Incorporated Visit our website www tsi com for more information USA Tel 1 800 874 2811 India Tel 91 80 67877200 UK Tel 44 149 4 459200 China Tel 86 10 8219 7688 France Tel 33 491118764 Singapore Tel 65 6595 6388 Germany Tel 49 241523030 2013 TSI Incorporated Printed in U S A LIMITATION OF WARRANTY AND LIABILITY Copyright TSI Incorporated 2012 2014 All rights reserved LIMITATION OF WARRANTY AND LIABILITY effective April 2014 For country specific terms and conditions outside of the USA please visit www tsi com Seller warrants the goods sold hereunder excludin
14. Capture Hood 69 70 This page intentionally left blank Airflow Instruments ProHood Capture Hoods PH730 PH731 Range Differential pressure Absolute pressure Velocity Volume Temperature Storage Temperature Resolution Pressure Temperature Accuracy Pressure Temperature Units Pressure Velocity Volume osnsnsieosenenneee Temperature Airflow Instruments Models PH730 PH731 Specifications 15 in H2O 3735 pa 150 in H2O maximum safe operating pressure 15 to 40 in Hg 356 to 1016 mm Hg 25 to 15 500 ft min 0 125 to 78m s pitot probes 25 to 5 000 ft min 0 125 to 25 m s air flow probe 25 to 2 500 ft min 0 125 to 12 5 m s velocity matrix 25 to 2 500 ft min 42 to 4250 m h capture hood supply and return 40 to 140 F 10 to 60 C base temperature probe 14 to 140 F 10 to 60 C temperature RH probe 40 to 140 F 4 4 to 60 C operating electronics 4 to 160 F 20 to 71 C 5 to 95 RH temperature RH probe 0 00001 in H2O 0 001 pa static and differential 0 01 in Hg 1 mm Hg absolute 1 ft min 01 m s 1 f min 1 m h 0 196 RH 0 1 F 0 1 C 2 of reading 0 0001 in H20 0 025 pa static and differential 2 of reading absolute 3 of reading 7 ft min 0 04 m s gt 5
15. ESC Key The ESC Escape key is used to cancel end an operation or to exit a screen of displayed information NEXT TEST Advances the Test ID number The NEXT TEST key is used to select a new unused Test Id for saving Samples when logging data A Print The PRINT key downloads data to an optional printer 8934 or to a computer STATS The STATS Statistics key will display the average minimum maximum and number of samples of data stored in the current Test ID MENU Press the Menu key to access the Menu selections which are Pressure Tool Display Setup Flow Setup Actual Std Setup Data Logging Bluetooth Functions Applications Cf Selection and Calibration Common Terms In this manual there are several terms that are used in different places The following is a brief explanation of the meanings of terms Term Description Sample Consists of all of the measurement parameters stored at the same time Test ID A group of samples The statistics average minimum maximum and count are calculated for each test ID The maximum number of test IDs is 100 Time Constant The time constant is an averaging period It is used to dampen the display If you are experiencing fluctuating flows a longer time constant will slow down those fluctuations The display will update every second but the displayed reading will be the average over the last time constant period For example if th
16. ION OF SELLER THE REPAIR OR REPLACEMENT OF THE GOODS IN THE CASE OF SOFTWARE SELLER WILL REPAIR OR REPLACE DEFECTIVE SOFTWARE OR IF UNABLE TO DO SO WILL REFUND THE PURCHASE PRICE OF THE SOFTWARE IN NO EVENT SHALL SELLER BE LIABLE FOR LOST PROFITS BUSINESS INTERRUPTION OR ANY SPECIAL DIRECT CONSEQUENTIAL OR INCIDENTAL DAMAGES SELLER SHALL NOT BE RESPONSIBLE FOR INSTALLATION DISMANTLING OR REINSTALLATION COSTS OR CHARGES No Action regardless of form may be brought against Seller more than 12 months after a cause of action has accrued The goods returned under warranty to Seller s factory shall be at Buyer s risk of loss and will be returned if at all at Seller s risk of loss Buyer and all users are deemed to have accepted this LIMITATION OF WARRANTY AND LIABILITY which contains the complete and exclusive limited warranty of Seller This LIMITATION OF WARRANTY AND LIABILITY may not be amended modified or its terms waived except by writing signed by an Officer of Seller Service Policy Knowing that inoperative or defective instruments are as detrimental to TSI as they are to our customers our service policy is designed to give prompt attention to any problems If any malfunction is discovered please contact your nearest sales office or representative or call Customer Service department at 800 874 2811 USA or 1 651 490 2811 International Trademarks TSI TSI logo Airflow Instruments LogDat CH are trademarks of TSI I
17. P Backpressure Compensated Measurements In the backpressure compensated a correction is applied to account for the change in flow due to the presence of the Capture Hood In most cases backpressure compensated measurements will provide the most satisfactory flow measurement results especially when the flow is greater than 500 ft min 850 m hr 235 l s Make sure that Capture Hood Back with Pressure Compensation is selected from the Pressure Tools menu Backpressure compensated measurement require two sequential measurements first with the back pressure flap OPEN and then with the flap CLOSED Follow the sequence of operation as described below 1 Place the Capture Hood over the diffuser grill or other opening through which you wish to make a measurement 2 Open the backpressure flap This is done by pressing up on the flap handle with your left hand as you hold the hood in place Press until the flap clicks into full open position 3 Press the red switch The message OPEN will be displayed as the meter takes the reading In very low flows this step and step 5 may take up to eight 8 seconds each Higher flows will require less time 4 Wait for the message CLOSE FLAP then close the flap by pulling down on the flap handle until it clicks into the fully closed position 5 Press the red trigger button The message CLOSED will be displayed as the meter take the reading 6 The backpressure compensated mea
18. ST traceability This annual checkup assures you of consistently accurate readings To calibrate the instrument please ship the complete package that includes the meter the base the manifold and any fabrics used Everything should be packed carefully within the carrying case and then inside a shipping box The original shipping box is preferred Before sending your instrument for calibration or repair obtain a Return Material Authorization RMA number by visiting our website at http rma tsi com or contacting customer service When obtaining an RMA number you will also learn the cost of service or calibration and receive shipping instructions Table 4 list the symptoms possible causes and recommended solutions for common problems encountered with the instrument If your symptom is not listed or if none of the solutions solves your problem please contact the factory Table 4 Troubleshooting the Instrument Symptom Possible Causes Corrective Action No display Unit not turned on Press I O key Low or dead batteries Replace the batteries Dirty battery contacts Clean the battery contacts AC adapter not connected Plug in AC adapter r7 Low battery charge Replace or recharge the batteries Dirty battery contacts Clean the battery contacts flashing on display 888888 The pressure is too high to The maximum pressure is shown flashing on display measure on the specifications page This same display is shown if
19. TS to display statistics of current traverse Test ID Do not exit the application while in the middle of the traverse You will be unable to return and complete the remaining test points The traverse will need to be repeated Chapter 4 Menu Setup and Navigation 39 Calibration Factor Cf Selection The correction factor is an offset that can be applied to the velocity measurements when using the AF Probe Pitot tube and Velocity Matrix or flow when using the Capture Hood An offset of 50 0 50 to 1 50 can be applied to the measurement MENU Pressure Tool Pitot tube Display Setup Flow Setup Actual Std Setup Settings Data Logging Bluetooth Functions Applications Cf Selection 1 gt EDIT C FACTOR DUR Calibration Pitot Cf settings gt ENTER SETTINGS THER Select Cfactor 1 k Select pre Cfactor 1 1 programmed Cfactor Cfactor 2 1 00 Program up to 4 Cfactor 3 1 00 separate Cfactors Cfactor 4 1 Range is from 0 50 Cf factor Status ON to 1 50 C PREVIOUS NEXT gt Cf factor Status ON Selected Cfactor will be applied to measurment OFF Selected Cfactor will not be applied to measurment Depending on what is selected as the Pressure Tool will determine what measurement tool is displayed on the Cf Selection screen Note Calibration factors are not available for the Pressure Only or Flow K factor tools Calibration The Calibration Menu lists measureme
20. This is a remnant of the air flow pattern which swirls around the hood and emerges in a highly uneven distribution across the sensing manifold of a capture hood Measurement errors up to and exceeding 4096 of flow can result unless a flow conditioner is used inside the capture hood Performance Data Performance data obtained in HVAC test laboratory using two high accuracy flow stations as flow measurement standards The flow stations were mounted in sealed ductwork upstream of the tested Swirl Diffusers PH731 Performance Data Swirl Diffuser on 200mm Dia Duct PH731 with Swirl X PH731 No Swirl X PH731 Allowed Tolerance Measurement Error of Flow NN o N o Flow m3 hr PH731 Performance Data Swirl Diffuser on 300mm Dia Duct r P H731 with Swirl X PH731 no Swirl X e PH731 Allowed Tolerance Measurement Error 96 of Flow 600 Flow m3 hr 68 Airflow Instruments ProHood Capture Hoods PH730 PH731 Installation and Usage 1 Put the two pieces together and place it in the base as shown below it will sit on top of the flange of the base 2 Install the support rods and 2 x 2 610 mm x 610 mm frame fabric 3 When set up use hood as normal There is no need to change K factors or access any special menus for use Appendix C Swirl X Flow Conditioner for TSI Model 8375 ACCUBALANCE Air
21. UNGUS OR OTHER AIRBORNE CONTAMINANTS IF YOU ARE OR MAY BE SENSITIVE TO DUST POLLEN MOLD FUNGUS OR OTHER AIRBORNE CONTAMINANTS ALWAYS USE AN APPROPRIATE MASK OR RESPIRATOR WHILE EMPLOYING THE PROHOOD CAPTURE HOOD Instrument Description The basic PH730 includes a micromanometer carrying case 18 in 46 cm pitot tube 2 static pressure probes 2 8 ft 2 4 m Norprene tubing user manual LogDat CH for Windows data downloading software and RS232 interface cable neck strap internal NiMH battery charger 4 AA NiMH batteries AC adapter and NIST traceable certificate The basic PH731 contains all of the PH730 components plus 2 ft x 2 ft 610 mm x 610 mm air capture hood frame and base A variety of optional tools see below are also available to meet your measurement needs The following paragraphs provide brief descriptions of the micromanometer and the various standard and optional tools for use with the ProHood Capture Hood Refer to Chapters 3 and 4 for more detailed information on using the micromanometer and taking measurements with various sensors and probes Micromanometer Figures 1 and 2 show the features of the micromanometer used in the PH730 PH731 Keypad Headphone AC Adapter Connection Connection S Probe Connector RS 232 Port factory use only USB Port Figure 1 Features of the PH730 PH731 Micromanometer Front View Norprene is a registered trademark of Norton Per
22. ad Functions Keypad Function Description ON OFF I O Key Press I O to turn the meter on and off During the power up sequence the display will show the following Model Number Serial Number and Software Revision To turn the instrument off press and hold the I O Key for 3 seconds The instrument will count down OFF2 OFF1 OFF If the AC Adapter is attached the Battery and I O Key is bypassed If the I O Key is pressed while the AC adapter is attached the instrument instructs you to Unplug the instrument to turn off the unit To turn the instrument on again attach the AC adapter or press the I O Key Arrow A Y lt P Press to scroll through choices while setting a parameter Keys Keypad Function Description Enter Key Press to accept a menu selection value or condition Press to Start or Stop data logging when in Continuous Key mode READ Key If the Data Logging is set to Manual Single pressing the READ key begins a reading which stops automatically when the reading is done If the display mode is set to Manual RunAvg the micromanometer will measure continuously and pressing READ will alternately pause or resume the measurement The red button on the capture hood base has the same function as the READ key Note Pressing the READ key will not store any measurement to memory SAVE The SAVE key is used to save the currently displayed measurement to the data logging memory
23. ading Measurements Single reading measurements are individual flow measurements initiated by pressing either the READ button on the meter or the red switch on the left side of the base Depending on the flow being measured a single reading will take one to eight seconds to complete lower flows take longer Once the measurement is complete the flow value will be displayed Press SAVE to log to memory or press READ or red switch to take a new measurement To measure in this mode 1 Select Capture Hood or Hood BP Comp in the Pressure Tool menu 2 Setthe Data Logging mode to Manual Single 3 Setthe Time Constant to 5 seconds 55 Running Average Measurements In this mode the instrument will measure continuously while displaying a running average of flow Pressing either the READ key on the meter or the red switch on the base will hold the current reading To restart the running average measurement press the READ key or the red switch The SAVE key can be used at any time to log to memory To measure in this mode 1 Select Capture Hood or Hood BP Comp in the Pressure Tool menu 2 Setthe Data Logging mode to Manual Single 3 Setthe Time Constant to 5 seconds Capture Hood Measurements non backpressure compensated Non backpressure compensated measurements can only be made with backpressure flap in the OPEN position If the flap is closed or partially closed the meter will display the message OPEN THE FLA
24. at Date Format Number Format e constant eum Backlight Auto Off Use the arrow keys to select Contrast 5 an option or to change the settings for each Set Time 09 14 AM option Press the key to accept settings Set Date 01 07 12 Time Format 12 hr E Date Format MM DD YY In addition to the general settings the Settings GEN XXJOOCYY menu also includes RS232 Baud Rate Deadband Backlight Auto and Headphone Input configuration settings Auto Off Enable RS232 Baud Rate 9600 Deadband Enable Headphone Input Enable RS232 Baud Rate Sets the speed a computer will accept information Deadband The deadband determines the velocity or volume measurement threshold for displaying 0 If the deadband is Enabled readings below 18 fpm 0 0914 m s or 18 cfm 30 58 m h 8 49 l s will be displayed as 0 If the deadband is Disabled readings down to 0 will be displayed The default is set to Enable Headphone Input The Headphone Input on the side of the meter can be either Enabled or Disabled When set to Enabled the meter will default to Capture Hood mode when the base switch is connected When set to Disabled the meter will not respond to the base switch input Use the arrow keys to select an option or to change the settings for each option Press the key to accept settings 26 Airflow Instruments ProHood Capture Hoods PH730 PH731 Data Logging Measurements Measurements to be logged to memory are independent of m
25. cities obtained at each measuring point Then the average velocity is multiplied by the duct area to get the flow rate A different method uses 2 holes at 90 from each other decreasing the number of traverses with the probe by one Figure 31 Location of Measuring Points when Traversing a Round Duct using Log Tchebycheff Method of Measuring Points Per Diameter Position Relative to Inner Wall Before taking the measurement multiply the numbers in the table times the duct diameter to get insertion depth for the probe Do not forget to use the inside dimension of the duct if it is lined with insulation 64 Airflow Instruments ProHood Capture Hoods PH730 PH731 Traversing a Square Duct Using the log Tchebycheff method the duct is divided into rectangular areas which are further adjusted in size to account for effects of the duct wall on the airflow A minimum of 25 points must be measured in order to get a good average The number of data points to be taken along each side of the duct depends on how wide that side of the duct is For duct sides less than 30 inches 5 traversal points must be taken along that side For duct sides of 30 to 36 inches 6 points must be taken For duct sides greater than 36 inches 7 points must be taken Multiply the numbers in the table times the duct dimension to get insertion depth for the probe Figure 32 Location of Measuring Points for Traversing a Rectangular Duct using Log Tchebych
26. city correction This is accomplished in the Actual Std Setup menu If no probe capable of measuring temperature plug in probe is connected the Temp Source must be set to Entered The air temperature must then be manually inputted by the user using the Entered Temp setting If the Temp Source is set to Probe and no probe is connected dashes will appear on the display For more information on entering the temperature manually refer to the Actual Standard Setup section of this manual Chapter 2 Unpacking and Setting Up 13 Connecting the Air Flow Probe to the Micromanometer When the micromanometer is connected to the Air Flow probe straight pitot probe air velocity or air volume measurements can be taken The Air Flow probe is connected to the and pressure ports on the micromanometer using two pieces of tubing of equal length The total pressure port of the probe connects to the port on the meter and the static pressure port of the probe connects to the port on the meter see Figure 12 Note Observe the arrow indicator on the Air Flow Probe straight pitot probe when taking air velocity or air volume measurements ze Pressure Port Lr P Pi Pressure Port Figure 12 Air Flow Probe The pitot velocity needs a valid temperature to perform the standard or actual velocity correction This is accomplished in the Actual Std Setup menu If no probe capable of measu
27. city or ROUND DUCT MEAS THIF volume flow based Primary Move 0 3 in selection in 597 ft2 min Display Setup Sample 0 00 measurement SAVE countdown TestID Name Test 001 andSample Sample 1 To input round or rectangular duct dimensions refer to the Flow Setup section of this manual The instrument operation can be configured three different ways depending on what is selected as the LogMode DisplayMode selection found in the data Logging menu If LogMode DisplayMode is set to Manual Single e Meter will display READY o Press READ to initiate measurement o Sample countdown based on the Time Constant setting will be displayed e When Sample countdown is complete o Press SAVE to store the measurement sample o Press ESC to discard and repeat measurement e When Sample is saved meter will prompt user to move probe to the next sample point If LogMode DisplayMode is set to Manual RunAvg e Meter will continuously display a reading e User can press SAVE at any time o Meter will store sample and prompt user to move probe to the next sample point If LogMode DisplayMode is set to AutoSave RunAvg e Meter will continuously display a reading e User can press SAVE at any time o Sample countdown based on the Sample Time will appear o When countdown is completed measurement will be stored to memory and user will be prompted to move probe to next sample point At anytime during the duct traverse user can press STA
28. ct and mail it promptly The card allows us to inform you of product updates If you prefer register through the TSI web site Preparing the Instrument for Use Before you can use the Electronic Balancing Tool you must decide on a power source Power the Micromanometer with the AC Adapter The AC adapter can be used to power the instrument or to charge the NiMH batteries when the DIP switch in the battery compartment is set to NiMH If the DIP switch is set to Alkaline and the AC power adapter is connected then the batteries will be bypassed and the meter will be powered by the AC adapter Be sure to provide the correct voltage and frequency which is marked on the back of the AC adapter Power the Micromanometer with Batteries The micromanometer is designed to operate with either alkaline or NiMH rechargeable batteries Battery life will be shorter if NiMH batteries are used For your convenience four NiMH batteries are included with the instrument If NiMH batteries are used the DIP switch will need to be changed Refer to the next section on setting the battery selection switch The four NiMH batteries included with the instrument will need to be charged prior to use Charge time is 4 hours Carbon zinc batteries are not recommended due to the danger of battery acid leakage 8 Airflow Instruments ProHood Capture Hoods PH730 PH731 To select the type of batteries you are using 1 Turn the unit off and locate the battery co
29. dity measurements over the range of 5 to 95 RH along with calculated wet bulb temperature of 40 to 140 F 4 to 60 C and dewpoint temperature of 5 to 120 F 15 to 49 C Thermoanemometer Probes Thermoanemometer probes can be used to measure air temperature air velocities or air volume measurements in ductwork as well as lower velocity applications such as face velocity measurements of chemical fume hoods biological safety cabinets and filtration systems Four models are available in straight or articulating construction and with or without a relative humidity sensor Models with a relative humidity sensor can also calculate wet bulb and dewpoint temperature Thermoanemometer Probes Model Description 960 Air Velocity and Temperature Straight Probe 962 Air Velocity and Temperature Articulating Probe 964 Air Velocity Temperature and Humidity Straight Probe 966 Air Velocity Temperature and Humidity Articulating Probe Chapter 1 Introduction 5 This page intentionally left blank Airflow Instruments ProHood Capture Hoods PH730 PH731 Chapter 2 Unpacking and Setting Up This chapter describes unpacking and setting up preparing the ProHood capture hood and micromanometer kit Unpacking As you unpack the instrument and accessories check the components against your packing list If any parts are missing or damaged notify us immediately Tables 1 and 2 list available standard and optional c
30. e frame In general attach a hood to the frame first and then to the base unit By stretching around the frame corners the cord is slightly reduced in diameter and is easier to press into the frame channel The hood corners should always be aligned with the corners of the base near the hood support brackets The base has rivets located in the corners which can be used as a guide for aligning the hood corners Direct Inflow Measurement Hood for Biological Safety Cabinets The BSC hood kits for the models PH731 are designed to measure the inflow or exhaust flow through a biological safety cabinet see Figure 23 Part numbers and description of each kit can be found in Table 2 of this manual Figure 23 Direct Inflow Measurement Hood Chapter 5 Changing Capture Hoods 49 The direct inflow BSC hood includes see Figure 24 e Fixed frame assembly with four removable flaps e Fabric hood e Hood support poles e Base mounting hardware threaded insert washer and screw e Telescopic pole stand with case to freely hold the capture hood in a vertical position when mounted to a biological safety cabinet or lab hood 1 Remove the plug located at the back of the base assembly and insert the Philips screw with washer into the hole from the inside of the base see Figure 25 Place the threaded insert on the outside of the base opposite the screw and tighten with a Philips screwdriver Figure 24 Direct Inflow Measurement Hood Com
31. e indicator may show a lower value even when they are fully charged The percent power remaining will not be accurate for NiMH batteries because their voltage does not decrease linearly with power use Due to the danger of battery leakage remove batteries from the battery compartment before storage Never mix battery types The NiMH batteries should only be charged at room temperature Starting with batteries that are too cold or too warm can cause the charge cycle to stop early Using the Pressure Ports The differential pressure ports are used to connect the micromanometer to various pressure based tools including the ProHood Capture hood Pitot tubes Air Flow probe straight pitot probe Velocity Matrix and static pressure probes Tubing is used to connect the ports on the micromanometer to the probes Positive Negative Pressure Port Pressure Port Figure 7 Pressure Ports 10 Airflow Instruments ProHood Capture Hoods PH730 PH731 Connecting a Pitot Tube When the micromanometer is connected to a pitot tube air velocity or air volume measurements can be taken The pitot tube is connected to the and pressure ports on the micromanometer using two pieces of tubing of equal length The total pressure port of the probe connects to the port on the meter and the static pressure port of the probe connects to the port on the meter Total Pressure Static Pressure Port Ba Port Figure 8 Pi
32. e opening of the cabinet Tape the edges of the flaps to the sash and frame of the cabinet to create a tight fit The unit is now ready to make measurements see Figure 30 CLASS II TYPE 1 83 Figure 30 Unit Ready to Make Measurements Chapter 5 Changing Capture Hoods 53 54 This page intentionally left blank Airflow Instruments ProHood Capture Hoods PH730 PH731 Chapter 6 Flow Measurements Using the Capture Hood There are two methods of making flow measurement using Capture Hood 1 Capture Hood non backpressure compensation 2 Capture Hood with backpressure compensation See Appendix A Back Pressure for an explanation of the implications of capture hood induced back pressure on the measured flow Supply or return flows can be measured with both methods and return flow is indicated as a negative number In addition flow measurements can be performed by taking a single reading or running average continuous reading mode Note Keep the Capture Hood in place during the entire measurement otherwise the reading will be in error WHILE USING THE PROHOOD CAPTURE HOOD TO TEST AIR FLOW IN DUCTS YOU MAY COME INTO CONTACT WITH OR BE EXPOSED TO DUST POLLEN MOLD FUNGUS OR OTHER AIRBORNE CONTAMINANTS IF YOU ARE OR MAY BE SENSITIVE TO DUST POLLEN MOLD FUNGUS OR OTHER AIRBORNE CONTAMINANTS ALWAYS USE AN APPROPRIATE MASK OR RESPIRATOR WHILE EMPLOYING THE PROHOOD CAPTURE HOOD Single Re
33. e time constant is 10 seconds the display will update every second but the displayed reading will be the average from the last 10 seconds This is also referred to as a moving average Note The time constant only applies to measuring velocity or volume when using 960 series thermoanemometer probes or volume using the capture hood Sample Time Sample Time is the time period over which the Sample will be averaged The sample time can be adjusted when the data logging mode is set to Auto Save RunAvg 18 Airflow Instruments ProHood Capture Hoods PH730 PH731 Term Description Log Interval The logging interval is the period over which the instrument will average the logged sample For example if the logging interval is set to 30 minutes each sample will be the average over the previous 30 minutes Log Interval is used with Cont Key RunAvg and Cont time RunAvg logging modes Test Length This is the time over which the data will be logged in the Continuous Time mode of data logging Sum The sum of all samples in a Test ID SUM is only available for Capture Hood or Diffuser Flow flow from pressure and K factor Minimum The sample with lowest value in the Test ID Maximum The sample with highest value in the Test ID Average The SUM divided by the number of Samples Chapter 3 Getting Started 20 This page intentionally left blank Airflow Instruments ProHood Ca
34. e washed with mild detergent and cold water When washing the hood keep the hood away from objects with sharp corners or sharp edges Careless cleaning may cause damage If the fabric gets ripped it should be replaced or repaired Duct tape can be placed over the rip on both sides of the fabric for temporary repair To replace a damaged fabric or to order a different fabric size contact your local TSI Airflow Instruments products distributor To determine who your local TSI Airflow Instruments products distributor is you may call toll free at 800 874 2811 USA or 1 651 490 2811 International Micromanometer The micromanometer case display screen and keys can be cleaned using a damp cloth with mild detergent solution Do not immerse it in water Wipe the unit dry before use Manifold If you observe the flow sensing taps of the manifold becoming clogged with dust or other material clean them with a damp cloth The manifold should be kept in place during cleaning Do not apply excessive forces on the grid of the manifold If any part of the grid is damaged please contact Customer Service for repair information Cases If the instrument case or storage case needs cleaning wipe it off with a soft cloth and isopropyl alcohol or a mild detergent Calibration TSI recommends an annual calibration for the instrument For a nominal fee we will calibrate the unit and return it to you with a certificate of calibration and NI
35. easurements on the display and must therefore be selected under DATA LOGGING gt Measurements e When set to ON measurement will be logged to memory e When set to DISPLAY measurement will be logged to memory if it is visible on the main running screen e When set to OFF measurement will not be logged to memory Pressure Tool Display Setup Flow Setup Actual Std Setup Settings Bluetooth Functions Applications Cf Selection Calibration MENU UI Data Logging DATA LOGGING Measurements Log Mode Display Mode Log Settings Choose Test Name Test View Data Delete Data Memory Log Mode Display Mode The instrument can be programmed to store measurements to memory in several different logging formats lt DISPLAY E MEASUREMENTS II Pressure ON Baro Pressure OFF Velocity Pitot DISPLAY Flow Pitot round duct DISPLAY ON gt Log Mode Display Mode BIGIEN BELGES Tof Recommended Usage Manual Single Single Single sample initiated Pressure Tools measurement and manually saved by user Manual RunAvg Continuous Running average readings Pressure Tools measurement manually saved by user Default for Capture Hood tool Auto save RunAvg Continuous Samples are automatically Thermoanemometer measurement logged to memory at the end of the sampling period Cont key Run Avg Continuous Unattended logging to Thermoan
36. eff Method For this duct a 30 36 horizontal dimension requires 6 points or 6 traverse lines For this duct a vertical dimension less than 30 requires 5 points or 5 traverse lines of Points or Traverse Lines per Side Position Relative to Inner Wall 0 074 0 288 0 500 0 712 0 998 0 061 0 235 0 437 0 563 0 765 0 939 0 053 0 203 0 366 0 500 0 634 0 797 0 947 Appendix B Traversing a Duct to Determine Average Air Velocity or Volume 65 66 This page intentionally left blank Airflow Instruments ProHood Capture Hoods PH730 PH731 Appendix C Swirl X Flow Conditioner for Airflow Instruments Model PH731 ProHood Capture Hood Description The Swirl X Flow Conditioner significantly reduces the negative effects turbulent airflows have on the measurement accuracy of pressure based capture hoods The Swirl X Flow Conditioner creates a more uniform flow pattern within the hood and is ideally suited for Swirl or Twist type supply air diffusers Swirl or Twist diffusers their associated ductwork and HVAC components are designed to deliver a volume of air to the targeted space with movement that entrains or mixes with the room air and increases optimal temperature uniformity and minimal sensible draft within the so called occupied zone Swirl X Flow Conditioner Air flowing through Swirl or Twist type diffusers has traditionally caused significant measurement errors in capture hoods
37. ement protocols used to perform various tests or investigations Applications include Heat flow Turbulence and Log Tchebycheff Duct Traverse For more information on these applications refer to the following information e Heat Flow calculates heat flow by making temperature humidity and flow measurements upstream and downstream of the coil in the duct Requires thermoanemometer probe 964 or 966 See Application Note AF 124 for more information e Turbulence Intensity turbulence intensity is a scale characterizing turbulence expressed as a percent Requires thermoanemometer probe 960 962 964 or 966 See Application Note AF 141 for more information e Log Tchebycheff Tcheb Duct Traverse See below MENU Pressure Tool Pitot tube Display Setup Flow Setup Actual Std Setup Settings Data Logging APPLICATIONS MME Bluetooth Functions OW Application Turbulence Cf Selection Log Tcheb Duct Traverse Calibration 38 Airflow Instruments ProHood Capture Hoods PH730 PH731 Log Tcheb Duct Traverse The Log Tchebycheff duct traverse is a method of determining the average air velocity or air volume within round or rectangular ductwork This application will show the round or rectangular duct on the display along with the number of sample points with insertion depth inches or millimeters For more information on this application and where to take the samples refer to Appendix B of this manual Velo
38. emormeter measurement track trends Pressure Only Cont time RunAvg Continuous Unattended logging to Thermoanemormeter measurement track trends Pressure Only Chapter 4 Menu Setup and Navigation 27 28 Pressure Tool Display Setup Flow Setup Actual Std Setup Settings Bluetooth Functions Data Logging DATA LOGGING Measurements HIE Applications Log Mode Display Mode LOG MODE DISPLAY MODE III Cf Selection Log Settings Calibration Choose Test Manual Single Name Test Manual RunAvg View Data Auto Save RunAvg Delete Data Cont Key RunAvg 96 Memory Cont Time RunAvg The Manual Single mode is a single reading that manually needs to be saved or discarded by the user In this mode the meter will show and READY When the READ key is pressed the instrument will start to take a reading with a duration based on the Time Constant setting When the countdown is complete a reading will be displayed e This reading can be saved by pressing the SAVE or key e The reading can be discarded by pressing ESC e Pressing READ will discard the current measurement and the meter will start taking a new sample Manual RunAvg In the Manual RunAvg mode the current reading is displayed at all times as an averaged reading Pressing READ or the RED switch on the base will freeze the current sample measurement o Press SAVE t
39. formance Plastics Akron Ohio USA windows is a registered trademark of Microsoft Corporation 2 Airflow Instruments ProHood Capture Hoods PH730 PH731 Differential Pressure Ports Battery Compartment Figure 2 Features of the PH730 PH731 Micromanometer Back View Figures 3 and 4 show the features of the ProHood Capture Hood Removable Center Handle Backpressure Flap Actuator Switch to pause a reading or to initiate backpressure compensation Base Handle Figure 3 Features of the ProHood Capture Hood Base Side View Chapter 1 Introduction Flow Manifold Backpressure Flap Mount for Hood Temperature Support Pole 4 Sensor Figure 4 Features of the ProHood Capture Hood Base Inside View Micromanometer The micromanometer is a multifunction instrument used to measure air velocity air flow absolute and differential pressure temperature and humidity measurements when used with the tools listed below The lightweight micromanometer incorporates auto zeroing for high accuracy low pressure measurements Measurements can be stored to memory for later recall or downloaded to a PC using the LogDat CH software and USB cable or with Bluetooth communications Standard Tools This section gives a brief description of standard tools for the micromanometer Pitot Tube The pitot tube is primarily used to obtain air velocity air volume and velocity pressure measurements within ductwork An 18
40. g software under normal use and service as described in the operator s manual to be free from defects in workmanship and material for twenty four 24 months or if less the length of time specified in the operator s manual from the date of shipment to the customer This warranty period is inclusive of any statutory warranty This limited warranty is subject to the following exclusions and exceptions a Hot wire or hot film sensors used with research anemometers and certain other components when indicated in specifications are warranted for 90 days from the date of shipment b Pumps are warranted for one year or 3000 hours whichever comes first c Parts repaired or replaced as a result of repair services are warranted to be free from defects in workmanship and material under normal use for 90 days from the date of shipment d Seller does not provide any warranty on finished goods manufactured by others or on any fuses batteries or other consumable materials Only the original manufacturer s warranty applies e This warranty does not cover calibration requirements and seller warrants only that the instrument or product is properly calibrated at the time of its manufacture Instruments returned for calibration are not covered by this warranty f This warranty is VOID if the instrument is opened by anyone other than a factory authorized service center with the one exception where requirements set forth in the manual allow an operator t
41. ing appropriate multi point in duct velocity traverses using a Pitot static tube or a thermal anemometer We recommend the use of the Log linear method when traversing a round duct and the Log Tchebycheff method when traversing a rectangular duct We recommend that you refer to the most up to date copy of the duct traverse specification you require from an approved regulatory or professional organization 61 62 This page intentionally left blank Airflow Instruments ProHood Capture Hoods PH730 PH731 Appendix B Traversing a Duct to Determine Average Air Velocity or Volume The following techniques can be used to measure air flow inside ducts using a velocity probe or pitot static tube When using a pitot static tube the individual velocities must be calculated for each pressure reading and then averaged together Averaging pressure with a pitot tube and then converting into velocity will give an incorrect result especially if many readings are more than 25 from the average pressure Remember that for a pitot tube velocity is proportional to the square root of pressure Where to Take the Measurement In order to make air velocity measurements in a duct it is best to measure at least 7 5 duct diameters downstream and at least 3 duct diameters upstream from any turns or flow obstructions It is possible to do a traverse as little as 2 duct diameters downstream and 1 duct diameter upstream from obstructions but measu
42. ings Bluetooth Functions Choose Test CHOOSE TEST Tle Applications Name Test Test001 9 Samples Cf Selection View Data Test 002 7 Samples Calibration Delete Data Test 003 20 Samples Memory Test 004 15 Samples Test 005 38 Samples Test 006 12 Samples Test 007 0 Samples lt NEW DATES gt name appears Press SAVE to store custom ID name MENU III Pressure Tool Display Setup Flow Setup DATA LOGGING MF Actual Std Setup Measure Settings ode Display Mode Manual RunAvg Data Logging Log Settings Bluetooth Functions Choose Test NAME TEST TIT Applications Name Test EE Cf Selection View Data TS112345 Calibration Delete Data SS SS SS Memory 0123456789 ABCDEFGHI J KLMNOPQRST UVWXYZ_ lt lt PREVIOUS NEXT gt Airflow Instruments ProHood Capture Hoods PH730 PH731 View Data Choose Test To view stored data first select the Test ID that contains the data to be recalled This is accomplished in the Choose Test menu MENU ELE Pressure Tool Display Setup Flow Setup DATA LOGGING MF Actual Std Setup Measure Settings ode Display Mode Manual RunAvg Data Logging Log Settings Bluetooth Functions Choose Test VIEW DATA Mk Applications Name Test laea EE Test 001 Ci Seleen View Dis ece 3 CHOOSE TEST M Calibration Delete Data View Samples Test 001 DC Ee Print Test Test 002 7 Samples Test 003 20 Samples Test 004 1
43. ion View Data View Stats Calibration Delete Data View Samples Memory Print Test The meter can send this data to the optional Model 8934 wireless printer or PC capable of Bluetooth communications To use the PRINT command Bluetooth communications must be established between the meter and the Model 8934 wireless printer or PC set up with Bluetooth communications For more information on establishing Bluetooth connections refer to Application Note AF 150 34 Airflow Instruments ProHood Capture Hoods PH730 PH731 Delete Data Use this menu item to delete all data delete test or delete a sample Delete All will clear stored data in all Test IDs Chapter 4 Menu Setup and Navigation 35 36 Delete Test will clear stored data in an individual Test ID selected by the user Delete Sample will clear the last sample in an individual Test ID selected by the user Airflow Instruments ProHood Capture Hoods PH730 PH731 Memory This option displays the memory available Delete All under Delete Data will clear memory and reset the memory available to 100 DATA LOGGING ITE Measurements Log Mode Display Mode Manual RunAvg Log Settings Choose Test Test 001 Name Test View Data Delete Data Memory MEMORY mE Test ID 83 96 Sample 92 96 Bluetooth Functions The meter contains a Bluetooth Functions menu which is used to adjust parameters to
44. ncorporated CONTENTS About This Manual sisareni naiiai icu Leer ne erri EnA cusuiuee fentutueeesneusestecbbueestuduers V Formatting and Typography ice ana outer re Fee tie ica ce ei ett dern ee Eb e cute od Ea e d V Technical Assistance Helpl a eid Data AE nentes neni three OA V Chapter 1 Introduction eiie rettet nece teen dre EES 1 Instrument Description Seege en hiec eebe Seege EEE 2 lee nie 2 lte geluet 4 Standard Wee EE 4 Een Oe dee Mery chorea pU MIT Eng 4 Static Pressure Probe s etsn uergen triente aab tt derer eaae derat eaaet dirae aee ee a uaa e dens 4 ProHlood Capture ele ee EE 4 Optional TOOls ihe tico ed bE e bees E EEN 5 Velocity Maltrlx iet ente Rie citt ee cubiti et e code iade 5 AlikFlow ProDez EE 5 Temperature Humidity del tel 5 Thermoanemometer Probes wi cia n rt terse td een ee bd Ere diets a deve 5 Chapter 2 Unpacking and Setting Up ccseccesceeceseeeseeeeneeeeeeeneesaeseneeeeeeeeeseaeeesaaesaneeeeeeeeeseeseseaeseseaeeeaes 7 UNPACKING RE 7 Preparing the Instrument for Use sssssssssssssssess ener nennen nnne nnne nnne enn n nnn snnt nennen 8 Power the Micromanometer with the AC Adapter sess 8 Power the Micromanometer with Batteries nennen nens 8 Using the Pressure Ports cepe er eeu ere saute e eee eec tdg e deett 10 Connecting a Pitot Tube ener tnmen nennen nsn nn tren netten nns essit nn innen 11 Connecting the Static Pressure Port to
45. nnn rennen nnne nens nnne nnn 63 Traversing a Bound Duct etienne ertet E Dee geed uEEE EE 64 Traversing a Square Duct eeseeisiisssseseseeseseen seen tne senten nentes nnns estesa entes enn nass tasas tnnt 65 Appendix C Swirl X Flow Conditioner for Airflow Instruments Model PH731 ProHood Capture Hood EENS EE EES deeg 67 Ne lee aM EE 67 PertormanceuDatac ats ert testet emen LI tes st ertet 68 Installation and USage EE 69 About This Manual This manual explains how to set up operate and maintain the Airflow Instruments PH730 PH731 Please read it thoroughly before using the instrument Formatting and Typography Q Step by step instructions are numbered in boldface type 1 2 3 etc set flush left against the margin Q References to keys on the micromanometer and the instrument s displayed readout are represented by a typeface called Arial In addition to the different typeface displayed messages appear in quotes Q When reference is made to other sections of the manual the section title is italicized Technical Assistance Help For technical assistance or questions about the instrument or if the instrument needs repair or recalibration call Customer Service at 800 874 2811 USA or 1 651 490 2811 International Product application notes are available to provide more information on the product These application notes as well as other related material can be obtained by
46. nt parameters that can be adjusted in the field The appropriate detachable probes must be attached to the meter before field calibration can be undertaken except for pressure and barometric pressure calibration MENU Me Pressure Tool Display Setup Flow Setup Actual Std Setup ALIBRATION ELLE Settings Calibrate Data Logging Bluetooth Functions Applications alibrate Press Cf Selection Calibrate B P Calibration Calibrate Hood Restore Factory Cal 40 Airflow Instruments ProHood Capture Hoods PH730 PH731 Printing Data Using the Portable Printer To print logged data first enter the DATALOGGING menu Then use the CHOOSE TEST item to select the data to be printed After the test is selected use the VIEW STATS and VIEW SAMPLES items to select statistics or individual data points to view and print After selecting VIEW STATS or VIEW SAMPLES press the PRINT key to print the data LogDat CH Downloading Software The instrument also includes downloading software called LogDat CH LogDat CH software transfers the stored data from the meter to a computer as a spreadsheet file This software is useful for applications such as duct traverses fume hood and filter face velocity testing Follow the instructions on the label of the LogDat CH software to install the software on your computer The software is shipped on a CD ROM and includes a User s Guide and Installation Instructions Updates are available from
47. o replace consumables or perform recommended cleaning g This warranty is VOID if the product has been misused neglected subjected to accidental or intentional damage or is not properly installed maintained or cleaned according to the requirements of the manual Unless specifically authorized in a separate writing by Seller Seller makes no warranty with respect to and shall have no liability in connection with goods which are incorporated into other products or equipment or which are modified by any person other than Seller The foregoing is IN LIEU OF all other warranties and is subject to the LIMITATIONS stated herein NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR PARTICULAR PURPOSE OR MERCHANTABILITY IS MADE WITH RESPECT TO SELLER S BREACH OF THE IMPLIED WARRANTY AGAINST INFRINGEMENT SAID WARRANTY IS LIMITED TO CLAIMS OF DIRECT INFRINGEMENT AND EXCLUDES CLAIMS OF CONTRIBUTORY OR INDUCED INFRINGEMENTS BUYER S EXCLUSIVE REMEDY SHALL BE THE RETURN OF THE PURCHASE PRICE DISCOUNTED FOR REASONABLE WEAR AND TEAR OR AT SELLER S OPTION REPLACEMENT OF THE GOODS WITH NON INFRINGING GOODS TO THE EXTENT PERMITTED BY LAW THE EXCLUSIVE REMEDY OF THE USER OR BUYER AND THE LIMIT OF SELLER S LIABILITY FOR ANY AND ALL LOSSES INJURIES OR DAMAGES CONCERNING THE GOODS INCLUDING CLAIMS BASED ON CONTRACT NEGLIGENCE TORT STRICT LIABILITY OR OTHERWISE SHALL BE THE RETURN OF GOODS TO SELLER AND THE REFUND OF THE PURCHASE PRICE OR AT THE OPT
48. o save the sample and return to the measuring mode o ESC will unfreeze and return to the measuring mode e Pressing SAVE anytime in the running mode will save the current sample and continue measuring MENU TELLE Pressure Tool Display Setup Flow Setup Actual Std Setup Settings Data Logging 7 DATA LOGGING TITLE Bluetooth Functions Measurements Applications Log Mode Display Mode gt LOG MODE DISPLAY MODE UE Cf Selection Log Settings Calibration Choose Test Manual Single Name Test Manual RunAvg View Data Auto Save RunAvg Delete Data Cont Key RunAvg Memory Cont Time RunAvg Airflow Instruments ProHood Capture Hoods PH730 PH731 Auto Save RunAvg Logging In Auto Save RunAvg mode the user samples are automatically logged to memory at the end of the sampling period To start logging press the 4 key The Auto Save RunAvg mode is recommended when using the optional thermoanemometer probes When set to Auto Save RunAvg the Sample Time can be adjusted Sample Time is the time period over which the Sample will be averaged Use the arrow keys to make changes and press to accept Chapter 4 Menu Setup and Navigation 29 30 Cont key Logging In Cont key mode the user starts logging by pressing SAVE or 4 The instrument will continue logging until SAVE or ESC is pressed is pressed again This mode would be used for l
49. omponents Table 1 List of Standard and Optional Components ltem Part No Models PH730 and PH731 Electronic Balancing Tools Airflow Instruments PH730 PH731 Air Velocity and Temperature StraightProbe E 6G Air Velocity Temperature and Humidity Articulating Probe Wireless Bluetooth printer 8934 Table 2 List of Optional Hood and Frame Kits Item Part No 1 ft x 4 ft 305 mm x 1220 mm fabric hood and frame kit 801200 2 ft x 4 ft 610 mm x 1220 mm fabric hood and frame kit 801201 1 ft x 5 ft 305 mm x 1525 mm fabric hood and frame kit 801202 3 ft x 3 ft 915 mm x 915 mm fabric hood and frame kit 801203 16 in x 16 in 406 mm x 406 mm fabric hood and frame kit 801209 5 25 in x 4 ft 133 mm x 1220 mm fabric hood and frame kit 801210 28 in x 28 in 710 mm x 710 mm fabric hood and frame kit 801211 28 in x 50 in 710 mm x 1270 mm fabric hood and frame kit 801212 1 ft x 4 ft 305 mm x 1220 mm and 2 ft x 4 ft 610 mm x 1220 mm fabric hood 801206 and frame kit 1 ft x 5 ft 305 mm x 1525 mm and 3 ft x 3 ft 915 mm x 915 mm fabric hood 801207 and frame kit 8 in x 22 in 205 mm x 560 mm BSC fabric hood frame poles and stand kit 801204 10 in x 22 in 255 mm x 560 mm BSC fabric hood frame poles and stand kit 801205 The BSC hood kits are used to certify Class II bio safety cabinets by taking direct in flow measurements for NSF compliance Please complete the registration card included with this produ
50. ong term data logging When set to Cont key the log interval can be adjusted Use the arrow keys to make changes and press to accept Airflow Instruments ProHood Capture Hoods PH730 PH731 Cont Time RunAvg Logging In Cont Time RunAvg mode the user starts taking readings by pressing SAVE or e The instrument will continue taking samples until the time as set in Test Length has elapsed or ESC SAVE or is pressed When set to Cont time the log interval and test length can be adjusted Chapter 4 Menu Setup and Navigation 31 32 Choose Test Test IDs consist of a group of Samples that are used to determine statistics average minimum and maximum of a measurement application The instrument can store 26 500 samples and 100 test IDs one sample can contain multiple measurement parameters such as flow and temperature Example Each duct traverse will have its own Test ID consisting of several Samples Pressing NEW will advance to the next available Test ID Pressing DATES will list the date the Test was taken Name Test This option allows for customizing the Test ID name using eight 8 characters maximum Use the arrow keys to move the cursor to a desired location press 4 to accept Repeat until the desired MENU HF Pressure Tool Display Setup Flow Setup DATA LOGGING MMF Actual Std Setup Measure Settings ode Display Mode Manual RunAvg Data Logging Log Sett
51. ow Instruments ProHood Capture Hoods PH730 PH731 Alternate Hood Installation Refer to Figures 17 through 20 to determine the frame channels needed to assemble any of the standard sized frames Select the pieces required for the frame size desired and assemble with the aid of the appropriate figure Each channel is labeled with its number for easy identification Several sections numbers 1 3 and 4 consist of a straight channel portion each a different length and a corner piece This corner piece has an eyelet and slot arrangement which mates with a similar eyelet and slot at the end of the straight portion of the channel pieces see Figure 17 These pieces can be slid together and are self locking by means of a retention spring The arrangement forms a rugged frame which is additionally strengthened when the hood is attached A 4f A CN baart NV d KR zx S Figure 17 1 ft x 4 ft 305 mm x 1220 mm hood and frame The support poles always cross as pairs at the front and back of the fabric hood For the 1 ft x 4 ft 305 mm x 1220 mm the support poles are inserted into the outside ferrule locations Chapter 5 Changing Capture Hoods 45 Figure 18 2 ft x 4 ft 610 mm x 1220 mm hood and frame The support poles always cross as pairs at the front and back of the fabric hood For the 2 ft x 4 ft 610 mm x 1220 mm the support poles are inserted into the inside ferrule locations
52. perature and humidity sensors This probe is ideally suited for in duct measurements and provides calculations for wet bulb or dewpoint temperature For temperature and humidity measurements make sure that at least 3 inches 7 5 cm of the probe is in the flow to allow the temperature and humidity sensors to be in the air stream Extending the Probe To extend the probe hold the handle in one hand while pulling on the probe tip with the other hand Do not hold the cable while extending the probe as this prevents the probe from extending Chapter 2 Unpacking and Setting Up 15 Retracting the Probe To retract the probe hold the handle in one hand while gently pulling the probe cable until the smallest antenna section is retracted Do not use the instrument or probes near hazardous voltage sources since serious injury could result 16 Airflow Instruments ProHood Capture Hoods PH730 PH731 Chapter 3 Getting Started This section provides information to help you quickly become familiar with the Micromanometer functions Keypad Functions The keypad lets you enter information initiate functions and change values stored in the micromanometer It will be helpful before operating the micromanometer to understand what each of the keys functions do Pressure Tool Additional Messages Selected Battery Indicator Primary Parameter Activity Area Secondary Parameter e AIRFLOW MENU key Figure 14 Keyp
53. ponents To complete the assembly of the BSC hood follow these seven steps Pc D Figure 25 Remove Plug Located at Back of Base Assembly 2 Attach the fabric hood and hood support poles to the frame and base assembly in the same manner as previously described for the other hood sizes 50 Airflow Instruments ProHood Capture Hoods PH730 PH731 3 Insert the flaps into the slots from the side of the frame where the fabric hood is attached to the U channel of the frame see Figure 26 Use the different flap lengths to fit various cabinet widths Figure 26 Attach Fabric Hood and Hood Support Poles to Frame and Base Assembly 4 Mount the capture hood base to the telescopic stand by fastening the screw on the telescopic stand to the threaded insert mounted on the base opposite the display manometer see Figure 27 Figure 27 Mount Hood Base to Telescopic Stand Chapter 5 Changing Capture Hoods 51 5 Adjust the height and position of the telescopic stand so that the bottom part of the hood frame rests against the cabinet opening and the capture hood is horizontal to the cabinet see Figure 28 Figure 28 Adjust Height and Position of Telescopic Stand 6 Lower the sash of the cabinet until it rests on the foam lip of the hood frame see Figure 29 Figure 29 Lower Sash of Cabinet Until it Rests on Foam Lip of Hood Frame 52 Airflow Instruments ProHood Capture Hoods PH730 PH731 7 Adjust the flaps to cover th
54. pture Hoods PH730 PH731 Chapter 4 Menu Setup and Navigation Menus The menu structure is organized to allow easy navigation and instrument setup utilizing the arrow and keys To exit a menu or menu item press the ESC key e To access the Menu items press the Menu key e To select a parameter use the Arrow keys to highlight the selection and press the key Pressure Tool Display Setup Flow Setup Actual Std Setup Settings Data Logging Bluetooth Functions Applications Cf Selection Calibration To exit a Menu item press the ESC key Pressure Tool The instrument accepts a number of different measurement devices which utilize the differential pressure sensor and are referred to as Pressure Tools MENU UE Pressure Tool tg Display Setup PRESSURE TOOL III Flow Setup Actual Std Setup Settings Data Logging Bluetooth Functions Applications Cf Selection Calibration Capture Hood Pressure Only Pitot tube AF Probe Velocity Matrix Pressure K factor None Capture Hood For measuring flow from grilles and diffusers Pressure Only For measuring static or differential pressures Pitot Tube Flow and velocity measurements inside ductwork AF Air Flow Probe Flow and velocity measurements inside ductwork Can also be used for face Straight Pitot velocity measurements Probe Velocity Matrix For area averaged multi point face velocit
55. rame to accept the other end of each support pole Grasp the support pole Bend the pole slightly to insert the top end of the pole into the support pole cup located in the opposite corner of the fabric frame The poles are connected to the frame corners in acrisscross fashion as shown in Figure 16 43 Figure 16 Installing a Support Pole 4 Insert the second support pole into the pole mount on the opposite side of the base 5 Repeat step 3 for the second support pole 6 Repeat steps 4 and 5 for the remaining two support poles Four other hood sizes are available from TSI and can be purchased separately Available hood sizes are identified by the dimensions of the frame structure at the top of the hood and include 2 ft x 4 ft 610 mm x 1220 mm 1 ft x 4 ft 305 mm x 1220 mm 1 ft x 5 ft 305 mm x 1525 mm and 3 ft x 3 ft 915 mm x 915 mm To change hood sizes first remove the hood currently attached to the base To remove the attached hood first unlatch the cinch belt where the fabric is attached to the base Then remove the fabric from its frame structure by pulling the shock cord out of the aluminum frame Finally fold up the fabric you just removed so that it can fit into one of the accessory pockets inside the carrying case It is a good idea to fold the fabric so that the tag identifying its size remains visible for future reference continued on next page 44 Airfl
56. rement accuracy will be impaired When measuring rectangular ducts use this formula to find the equivalent diameter of the duct when calculating how much distance is 7 5 diameters downstream and 3 diameters upstream Equivalent Diameter sq root of 4HV Pi Where H horizontal duct dimension V vertical duct dimension Pi 3 14 It is also possible to take a single reading to measure air velocity or air volume flow in a duct measuring in the center of the duct and multiplying the reading by 0 9 to correct for the higher velocity at the center of the duct If conditions are very good an accuracy of 5 or 10 percent may be obtained this way This method is not reliable however and should only be used where small duct size or other conditions do not permit a full traverse continued on next page 63 Traversing a Round Duct Using the log Tchebycheff method the duct is divided into concentric circles each containing equal area An equal number of readings is taken from each circular area thus obtaining the best average Commonly three concentric circles 6 measuring points per diameter are used for ducts of 10 inch diameter and smaller Four or five concentric circles 8 or 10 measuring points per diameter are used for ducts larger than 10 inch diameter The preferred method is to drill 3 holes in the duct at 60 angles from each other as shown in Figure 31 below Three traverses are taken across the duct averaging the velo
57. ring temperature plug in probe is connected the Temp Source must be set to Entered The duct air temperature must then be manually inputted by the user using the Entered Temp setting If the Temp Source is set to Probe and no probe is connected dashes will appear on the display For more information on entering the temperature manually refer to the Actual Standard Setup section of this manual 14 Airflow Instruments ProHood Capture Hoods PH730 PH731 Connecting the Base Temperature Probe Temperature and Humidity Probe or Thermoanemometer Probe to the Micromanometer These probes have a D shape overmolding on the mini DIN connector which must align with the connector on the right hand side of the micromanometer see Figure 13 This will ensure the probe is properly connected and remains so during use Once connected and turned on refer to the DISPLAY SETUP for displaying the desired measurements D Shaped mini DIN Connector Figure 13 Connector for the Base Temperature Probe Temperature Humidity Probe or Thermoanemometer Probes Using the Telescoping Thermoanemometer Probes or Temperature and Humidity Probe The telescoping thermoanemometer probe contains the velocity temperature and humidity sensors When using the probe make sure the sensor window is fully exposed and the orientation dimple is facing upstream The telescopic temperature and humidity probe contains the tem
58. s Pressure Tool Note Depending on the Pressure Tool selected or probe connected different measurement parameters will appear in the Display Setup screen MENU III Pressure Tool Display Setup DISPLAY SETUP Flow Setup Actual Std Setup Velocity TA Settings Flow TA round duct Data Logging Temperature Bluetooth Functions RH Applications Dewpoint Cf Selection WetBulb Calibration Baro Pressure OFF UK ON OFF ON ON ON OFF ON PRIMARY gt Display Setup Screen with optional 964 or 966 Thermoanemometer Probe Connected Chapter 4 Menu Setup and Navigation 23 Flow Setup Pitot Tube AF Probe straight pitot tube or Thermoanemometer Probe In Flow Setup mode there are three types when using a Pitot tube AF probe or thermoanemometer probe Round Duct Rectangle Duct and Duct Area Use the A and V keys to scroll through the types and then press the key to accept To change the duct size highlight the Enter Settings option and press the key Use the arrow keys to make changes and press the key to accept MENU Pressure Tool pitot tube Display Setup Flow Setup 5 FLOW SETUP Actual Std Setup Settings Flow Type rLow TYPE TI Data Logging Enter Settings Bluetooth Functions GE duct Applications BR Cf Selection Lug Calibration lt PREVIOUS ENTER SETTINGS 12 0 in dia Flow
59. source can be entered manually or taken from a probe that measures temperature plug in probe MENU TELLE Pressure Tool Display Setup Flow Setup Actual Std Setup ACTUAL STD SETUP ITP Settings Data Logging Setting Standard Bluetooth Functiong Temp Source Entered Applications Cf Selection Calibration TEMP SOURCE III SETTING MF lt PREVIOUS GC ERR E NEXT gt Standard Actual The pressure based probes pitot tube AF probe and Velocity Matrix need a valid temperature to perform the standard or actual velocity or volume flow corrections This is accomplished in the Actual Std Setup menu If no probe capable of measuring temperature plug in probe is connected the Temp Source must be set to Entered The air temperature must then be manually inputted using the Entered Temp setting If the Temp Source is set to Probe and no probe is connected dashes will appear on the display For the Diffuser Flow tool Flow from Pressure and K factor temperature and barometric pressure are not used for calculating flow Therefore a set temperature is not required for this tool Chapter 4 Menu Setup and Navigation 25 Settings Settings menu is where you can set the general SETTINGS settings These include Language Beeper Select Language English Units Time Constant Contrast Set Time Set Paid ee Disable Date Time Form
60. surement value will appear and remain on the display until another reading is initiated or other meter function is initiated To log reading to memory press SAVE 56 Airflow Instruments ProHood Capture Hoods PH730 PH731 It is important that the capture hood see the same flow for both parts of the backpressure compensated flow measurement It is best to keep the Capture Hood in place for both measurements but it is alright to remove and replace the Capture Hood between the two readings However if the flow is changed or changing between the two measurements the measurement results will be inaccurate ERROR Display For the backpressure compensation measurement to be meaningful the measurement in the flap OPEN position must be higher than the measurement in the flap CLOSED position If this is not true the ProHood meter will display an error backpressure open greater than closed Chapter 6 Flow Measurements Using the Capture Hood 57 58 This page intentionally left blank Airflow Instruments ProHood Capture Hoods PH730 PH731 Chapter 7 Maintenance and Troubleshooting The ProHood Capture Hood PH730 PH731 is designed for long term field use If used with reasonable care it should be able to make precise measurements over a long time period Some of the components can be cleaned periodically When cleaning the components please follow the instructions given below Fabric Hood The hoods can b
61. tabs are engaged in the slots press firmly on the face of the meter above the display until the tab in the top center of the meter clicks into the bent metal retaining clip in the base Attach the temperature cable and the back pressure flap switch cable to the right side of the meter To remove the meter from the base first disconnect the temperature cable and the back pressure flap switch cable then press upward on the metal retaining clip to release the meter from the base Figure 10 Attaching the Meter to the Capture Hood Base 12 Airflow Instruments ProHood Capture Hoods PH730 PH731 Connecting the Velocity Matrix to the Micromanometer The positive port is located on the side of the Velocity Matrix that is opposite the handle assembly The positive port on the Velocity Matrix will be connected to the port on the micromanometer and the negative port on the Velocity Matrix is connected to the port on the micromanometer Standoffs can be screwed together to make different lengths and are used to maintain a fixed and level orientation away from a filter The standoffs are attached to the positive side of the velocity matrix The handle assembly is attached to the downstream or negative side in the center of the velocity matrix see Figure 11 Standoffs Positive Port e e Figure 11 Velocity Matrix The Velocity Matrix needs a valid temperature to perform the standard or actual velo
62. the TSI website at http Avww tsi com Software Downloads To download data from the meter connect the supplied computer interface USB cable to the meter and to a computer USB port Any USB port can be used Chapter 4 Menu Setup and Navigation 41 42 This page intentionally left blank Airflow Instruments ProHood Capture Hoods PH730 PH731 Chapter 5 Changing Capture Hoods This chapter identifies the flow hood parts and gives instructions for assembling the flow hood Capture Hood Parts Identification Figure 15 identifies the major parts of the capture hood which are described in the following paragraphs Before using the hood please familiarize yourself with the various parts You may also refer to Tables 1 through 3 Fabric hood Basic hood assembly Base allows micromanometer to be attached Micromanometer with display Flap Actuator Read Switch OO E Go M Figure 15 Flow Hood Components Capture Hood Assembly The Capture Hood is shipped from the factory partially assembled with the 2 ft x 2 ft 610 mm x 610 mm nylon hood attached to the base If you wish to use another hood size see Changing Capture Hoods To complete the assembly of the 2 ft x 2 ft 610 mm x 610 mm hood follow these six steps 1 Place the base of the capture hood on the floor 2 Lift the top of the fabric Insert one end of a support pole into its pole mount in the base There is a cup in each corner of the f
63. tot Tube The pitot velocity needs a valid temperature to perform the standard or actual velocity correction This is accomplished in the Actual Std Setup menu If no probe capable of measuring temperature plug in probe is connected the Temp Source must be set to Entered The duct air temperature must then be manually inputted by the user using the Entered Temp setting If the Temp Source is set to Probe and no probe is connected dashes will appear on the display For more information on entering the temperature manually refer to the Actual Standard Setup section of this manual Do not use the instrument or probes near hazardous voltage sources since serious injury could result Connecting the Static Pressure Port to the Micromanometer The static pressure port on the static pressure probe will be connected to the port on the micromanometer The port on the micromanometer will be open to atmosphere see Figure 9 The Static Pressure probe is used to measure the duct static pressure and features a magnet which holds the probe to the ductwork ind Pressure Port b Figure 9 Static Pressure Probe Chapter 2 Unpacking and Setting Up 11 Attaching the Micromanometer to the Capture Hood Base 1 Tilt the meter forward and align the tabs in the base of the meter with the two matching slots in the bottom of the recessed area at the front of the base see Figure 10 2 When the
64. ver on the back of the micromanometer see Figure 5 Figure 5 Battery Cover Removal Press down on the compartment cover and slide it down The cover slides off Remove the battery holder by pulling up on the bottom to loosen it and then pulling the battery holder free 4 Referto Figure 6 and set the battery selection switch to indicate the type of batteries you are using Battery Selection Switch Figure 6 Location of Battery Type Selector Switch 5 Reinstall the battery holder and replace the battery compartment cover Chapter 2 Unpacking and Setting Up To install replacement batteries 1 Turn the unit off and locate the battery cover on the back of the micromanometer see Figure 5 2 Press down on the compartment cover and slide it down The cover slides off 3 Remove the battery holder by pulling up on the bottom to loosen it and then remove the battery holder 4 Remove the old batteries and replace with fresh batteries alkaline or rechargeable NiMH Make certain batteries are correctly oriented Verify the battery selection switch is correctly set see Figure 5 6 Reinstall the battery holder and replace the compartment cover Note Make sure the battery holder is oriented so that its terminals make contact with the spring contacts in the battery compartment If fresh new alkaline batteries are used the battery indicator will show four 4 bars when first turned on With NiMH batteries th
65. y measurements Flow K factor Used to calculate flow from diffusers equipped with differential pressure taps The flow through the diffuser can be calculated by multiplying the square root of the pressure times a user entered k factor obtained from the diffuser manufacturer Note The K factor is entered in the Flow Setup Screen None Disables pressure sensor and zeroing valves Select None when using thermoanemometer probes when differential pressure measurements are not required 21 Table 3 identifies each Pressure Tool and the units of measure available each Table 3 Pressure Tool Selection and Display Display Shows Tool Units Available U Capture Hood V s m hr m s CFM with flow units Pressure units only Pressure Only in H2O mm H2O cm HO Pa hPa kPa mm Hg cm Hg in Hg L Pitot Tube Velocity ft min m s with velocity or flow Pitot Tube Flow V s m hr m s CFM units Air Flow Probe Velocity ft min m s with velocity or flow Air Flow Probe Flow I s m hr m s CFM units x Velocity Matrix ft min m s with velocity units Pressure units with K Diffuser Flow l s m hr m s CFM factor and flow units When the micromanometer is mounted on the base for use as a capture hood and the headphone jack is connected the unit will automatically default the Pressure Tool to Capture Hood mode The options when in the Pressure Tool menu will be Capture Hood or Hood BP Mode MENU

Manual PH731 / PH730

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