Alnor EBT730 Owner's Manual
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Alnor EBT730 Owner's Manual

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ALNOR
ELECTRONIC
®
BALANCING TOOL
MODELS EBT730/EBT731
OWNER'S MANUAL
P/N 6005725, REV D
OCTOBER 2014
®
Model EBT731 Balometer
Model EBT730 Micromanometer
Air Balancing Instrument
(shown with standard and optional accessories)
GlobalTestSupply
www.
.com
Find Quality Products Online at:
sales@GlobalTestSupply.com

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  • Page 1 ALNOR ELECTRONIC ® BALANCING TOOL MODELS EBT730/EBT731 OWNER’S MANUAL P/N 6005725, REV D OCTOBER 2014 ® Model EBT731 Balometer Model EBT730 Micromanometer Air Balancing Instrument (shown with standard and optional accessories) GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
  • Page 2 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
  • Page 3 If any malfunction is discovered, please contact your nearest sales office or representative, or call TSI’s Customer Service department at 1-800-874-2811 (USA) or (651) 490-2811. Trademarks ® ® , TSI logo, Alnor , LogDat-CH, are trademarks of TSI Incorporated. GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...

  • Page 4: Table Of Contents

    CONTENTS About This Manual ............................. iii Formatting and Typography ........................iii Technical Assistance—Help! ........................iii Chapter 1. Introduction ..........................1 Instrument Description ..........................1 Micromanometer ..........................2 Micromanometer ............................. 3 Standard Tools ............................4 Pitot Tube ............................4 Static Pressure Probe ........................4 ®...
  • Page 5 Where to Take the Measurement ......................63 Traversing a Round Duct........................63 Traversing a Square Duct........................65 ® Appendix C. Swirl X Flow Conditioner for Alnor Model EBT731 Balometer Capture Hood Optional Accessory (P/N 801213) ................... 67 Description ............................67 Performance Data ..........................68 Installation and Usage ..........................

  • Page 6: About This Manual

    About This Manual This manual explains how to set up, operate and maintain the Alnor EBT730/EBT731. Please read it thoroughly before using the instrument. Formatting and Typography Step-by-step instructions are numbered in boldface type: 1, 2, 3, etc., set flush-left against the ...

  • Page 7: Chapter 1. Introduction

    APPROPRIATE MASK OR RESPIRATOR WHILE EMPLOYING THE ALOMETER BALANCING INSTRUMENT Instrument Description The basic EBT730 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...
  • Page 8 The basic EBT731 contains all of the EBT730 components plus 2 ft  2 ft (610 mm  610 mm) air capture hood, frame, and base. A variety of optional tools (see below) are also available to meet your measurement needs.

  • Page 9: Micromanometer

    ® Figures 3 and 4 show the features of the Balometer Capture Hood. Removable Center Handle Backpressure Flap Actuator Switch to pause a reading or to Base Handle initiate backpressure compensation ® Figure 3: Features of the EBT Balometer Base, Side View Backpressure Flap Flow Manifold Mount for Hood...

  • Page 10: Standard Tools

    Pitot Tube The pitot tube is primarily used to obtain air velocity, air volume, and velocity pressure measurements within ductwork. An 18 in. (46 cm) pitot tube is included with the EBT730 or EBT731 kits. Alternate sizes are available. Static Pressure Probe The static pressure probe is primarily used to obtain static pressure measurements within ductwork.

  • Page 11: Thermoanemometer Probes

    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.

  • Page 12: Chapter 2. Unpacking And Setting Up

    Tables 1 and 2 list available standard and optional components. Table 1: List of Standard and Optional Components Item Part No. Models EBT730 and EBT731 Electronic Balancing Tools (Alnor) EBT730 EBT731 Carrying case, EBT730 1319378...

  • Page 13: Preparing The Instrument For Use

    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. Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www.
  • Page 14 To select the type of batteries you are using: 1. Turn the unit off and locate the battery cover on the back of the micromanometer (see Figure 5). Figure 5: Battery Cover Removal 2. Press down on the compartment cover and slide it down. (The cover slides off.) 3.

  • Page 15: Using The Pressure Ports

    Tubing is used to connect the ports on the micromanometer to the probes. Positive (+) Negative (–) Pressure Port Pressure Port Figure 7. Pressure Ports Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...

  • Page 16: Connecting A Pitot Tube

    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.

  • Page 17: Connecting The Static Pressure Port To The Micromanometer

    4. 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 Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www.

  • Page 18: Connecting The Velocity Matrix To The Micromanometer

    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.

  • Page 19: Connecting The Air Flow Probe To The Micromanometer

    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. Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at:...

  • Page 20: Connecting The Base Temperature Probe, Temperature And Humidity Probe Or Thermoanemometer Probe To The Micromanometer

    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.

  • Page 21: 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. C A U T I O N Do not use the instrument or probes near hazardous voltage sources since serious injury could result. Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at:...

  • Page 22: Chapter 3. Getting Started

    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.
  • Page 23 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. (continued on next page) Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at:...

  • Page 24: Common Terms

    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.

  • Page 25: Chapter 4. Menu Setup And Navigation

    Chapter 4. Menu Setup and Navigation Menus The menu structure is organized to allow easy MENU navigation and instrument setup utilizing the Pressure Tool arrow and keys. To exit a menu or menu Display Setup Flow Setup item, press the ESC key. Actual/Std Setup ...
  • Page 26 BP Mode. MENU Pressure Tool Display Setup PRESSURE TOOL Flow Setup Actual/Std Setup Capture Hood Settings Hood BP Comp Data Logging Bluetooth Functions Applications Cf Selection Calibration Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...

  • Page 27: Display Setup

    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.

  • Page 28: Flow Setup [Pitot Tube, Af Probe (Straight Pitot Tube) Or Thermoanemometer Probe]

    1. Set Flow to PRIMARY in Display Setup menu. 2. Press the or key to access Kfactor adjustment screen. 3. Make adjustments with arrow keys and press to accept. Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at:...

  • Page 29: Actual/Standard Setup

    Note 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 TSI-114.

  • Page 30: Settings

    Use the arrow keys to select an option or to change the settings for each option. Press the key to accept settings. Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at:...

  • Page 31: Data Logging

    Data Logging Measurements Measurements to be logged to memory are independent of measurements on the display, and must therefore be selected under DATA LOGGING  Measurements.  When set to ON, measurement will be logged to memory.  When set to DISPLAY, measurement will be logged to memory if it is visible on the main running screen.
  • Page 32 LOG MODE/DISPLAY MODE Log Mode/Display Mode Manual/RunAvg Cf Selection Log Settings Calibration Manual/Single Choose Test Test 001 Manual/RunAvg Name Test View Data Auto-Save/RunAvg Cont-Key/RunAvg Delete Data Cont-Time/RunAvg % Memory Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
  • Page 33 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 key. The Auto-Save/RunAvg mode is recommended when using the optional thermoanemometer probes. MENU Pressure Tool Display Setup Flow Setup Actual/Std Setup...
  • Page 34 Log Mode/Display Mode Cont-Key/RunAvg Cf Selection Log Settings LOG INTERVAL Calibration Choose Test Test 001 Name Test View Data 00:01 Delete Data Min:Sec % Memory PREVIOUS NEXT Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
  • Page 35 Cont-Time/RunAvg Logging In Cont-Time/RunAvg mode, the user starts taking readings by pressing SAVE or . The instrument will continue taking samples until the time as set in “Test Length” has elapsed or ESC, SAVE or is pressed. MENU Pressure Tool Display Setup Flow Setup Actual/Std Setup...
  • Page 36 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ ← PREVIOUS NEXT Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at:...
  • Page 37 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 Pressure Tool Display Setup DATA LOGGING Flow Setup Measurements Actual/Std Setup Log Mode/Display Mode Manual/RunAvg Settings Log Settings...
  • Page 38 Model 8934 wireless printer or PC set up with Bluetooth communications. For more information on establishing Bluetooth connections, refer to TSI Applications Note TSI-150. Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at:...
  • Page 39 Delete Data Use this menu item to delete all data, delete test or delete a sample. MENU Pressure Tool Display Setup DATA LOGGING Flow Setup Measurements Actual/Std Setup Log Mode/Display Mode Manual/RunAvg Settings Log Settings Data Logging Choose Test Test 022 Bluetooth Functions Name Test Applications...
  • Page 40 8 Samples DELETE SAMPLE Test 005 7 Samples Test 006 15 Samples Test 007 15 Samples --- --- DATES Test 005 Sample 7 02/15/12 04:55:03 PM DELETE Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...

  • Page 41: Bluetooth Functions

    % Memory This option displays the memory available. Delete All, under Delete Data, will clear memory and reset the memory available to 100%. DATA LOGGING Measurements Log Mode/Display Mode Manual/RunAvg Log Settings Choose Test Test 001 Name Test View Data Delete Data % Memory MEMORY...

  • Page 42: Applications

    (inches or millimeters). For more information on this application and where to take the samples, refer to Appendix B of this manual. Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
  • Page 43 Velocity or ROUND DUCT MEAS volume flow based on Move: 0.3 in Primary 597 ft /min selection in Display Setup 0:00 Sample SAVE? measurement countdown Test 001 Test ID Name Sample 1 and Sample To input round or rectangular duct dimensions, refer to the Flow Setup section of this manual.

  • Page 44: Calibration Factor (Cf) Selection

    CALIBRATION Actual/Std Setup Calibrate Temp Settings Calibrate Vel Data Logging Calibrate %RH Bluetooth Functions Calibrate Press Applications Calibrate B.P. Cf Selection Calibrate Hood Calibration Restore Factory Cal Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...

  • Page 45: Printing Data Using The Portable Printer

    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.

  • Page 46: Chapter 5. Changing Capture Hoods

    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.

  • Page 47: Alternate Hood Installation

    (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. Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www.
  • Page 48 Figure 17: 1 ft  4 ft (305 mm  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  4 ft (305 mm  1220 mm), the support poles are inserted into the outside ferrule locations.
  • Page 49 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). Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www.
  • Page 50 Figure 19: 1 ft  5 ft (305 mm  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  5 ft (305 mm  1525 mm), the support poles are inserted into the inside ferrule locations.
  • Page 51 For the 3 ft  3 ft (915 mm  915 mm), the support poles are inserted into the outside ferrule locations. Figure 21: Frame Corner Assembly Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www.

  • Page 52: Direct Inflow Measurement Hood For Biological Safety Cabinets

    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.
  • Page 53 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. Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www.
  • Page 54 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.
  • Page 55 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 Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www.
  • Page 56 7. Adjust the flaps to cover the 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). Figure 30: Unit Ready to Make Measurements Chapter 5: Changing Capture Hoods GlobalTestSupply...

  • Page 57: Chapter 6. Flow Measurements Using The Capture Hood

    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.

  • Page 58: Running Average Measurements

    6. The backpressure compensated measurement 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. Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at:...

  • Page 59: Error" Display

    Note 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.

  • Page 60: Chapter 7. Maintenance And Troubleshooting

    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/Alnor products ®...
  • Page 61 “Temp Source” to “Entered” in the Actual/Std menu and manually input temperature. Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...

  • Page 62: Appendix A. Back Pressure

    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.

  • Page 63: Appendix B. Traversing A Duct To Determine Average Air Velocity Or Volume

    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.
  • Page 64 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.) Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www.

  • Page 65: Traversing A Square Duct

    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.

  • Page 66: Appendix C. Swirl X Flow Conditioner For Alnor Model Ebt731 Balometer ® Capture Hood Optional Accessory (P/N 801213)

    Appendix C. Swirl X Flow Conditioner for Alnor ® Model EBT731 Balometer Capture Hood Optional Accessory (P/N 801213) 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...

  • Page 67: Performance Data

    EBT731 Allowed Tolerance Flow [m /hr] EBT731 Performance Data (Swirl Diffuser on 300mm Dia. Duct) EBT731 with Swirl-X EBT731 (no Swirl-X) EBT731 Allowed Tolerance 1000 1200 Flow [m /hr] Electronic Balancing Tool EBT730/EBT731 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...

  • Page 68: Installation And Usage

    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.
  • Page 69 (4.76 mm) ID flexible tubing Volume ...... 25 to 2,500 ft /min (42 to Weight with batteries .. EBT730 17 oz (0.5 kg); 4250 m /h) capture hood EBT731 7.4 lb (3.4 kg) supply and return Power requirements ..

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