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About this Manual 

 
This manual explains how to set up, operate and maintain the 
AccuBalance

®

 Air Capture Hood Model 8371. Read it thoroughly before 

using the instrument. 
 

Formatting and Typography 

Note that step-by-step instructions are numbered in boldface type:  

1

,

 2

,

 

3

, etc., set flush-left against the margin. 

 
References to the front panel keys on the AccuBalance

®

 

capture hood, 

along with the instrument's displayed readout, are represented in this 
manual by the typeface called 

Helvetica Narrow

. In addition to the different 

typeface, displayed messages appear in quotes. 
 
When reference is made to other sections of the manual, the section title 
is italicized. 
 
Example:  The

 "SAMPLE"

 message appears along with a flow value after 

the 

SAMPLE

 button has been activated (from 

Display

 

in Chapter 1). 

 
 

HELP! 

For technical assistance with this instrument, questions about the 
manual, or if your air capture hood needs repair or recalibration, please 
call TSI Customer Service at (651) 490-2811 or (800) 874-2811. Product 
application notes are designed to provide more information on the 
product to the user. Application notes, as well as other related material, 
can be obtained by calling TSI or by visiting the TSI web site at 

http://www.tsi.com

.  

Содержание ACCUBALANCE 8371

Страница 1: ...ACCUBALANCE AIR CAPTURE HOOD MODEL 8371 OPERATION AND SERVICE MANUAL 1980335 REVISION E FEBRUARY 2013...

Страница 2: ......

Страница 3: ...INGEMENT 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 DISCO...

Страница 4: ...8 Start Up 8 Selecting Flow Direction 8 Taking a Flow Measurement 8 Turning the AccuBalance Air Capture Hood Off 9 Automatic Shut off 9 OPERATIONS IN MORE DETAIL 11 Keypad Functions 11 Field Calibrat...

Страница 5: ...he different typeface displayed messages appear in quotes When reference is made to other sections of the manual the section title is italicized Example The SAMPLE message appears along with a flow va...

Страница 6: ...the flow sensing manifold The twenty four pairs of flow sensing ports in the manifold are strategically located so that the AccuBalance capture hood provides the highest degree of measurement accuracy...

Страница 7: ...Hood See Chapter 2 for a detailed description of all operating features Figure 1 The AccuBalance Air Capture Hood Unpacking Carefully unpack the instrument and accessories from the carrying case Check...

Страница 8: ...ood fabric 1801065 1 1 ft x 4 ft 305 mm x 1220 mm hood fabric 1801066 6 2 ft 610 mm frame tubing 1081262 4 1 ft 305 mm frame tubing 1081260 6 Right angle tubing connectors 1081584 6 Straight tubing co...

Страница 9: ...2 2 Right handle with SAMPLE button used for capturing information on the display 3 Meter base 4 Electronic meter and display Detailed keypad functions are covered in Chapter 2 5 Printer bracket Allow...

Страница 10: ...flow calibration is being utilized by the AccuBalance capture hood Notice Be sure this arrow points in the direction of flow through the AccuBalance capture hood otherwise the measurements made will...

Страница 11: ...have an adjustment factored in Display Units The AccuBalance capture hood is shipped with cubic feet per minute CFM as the default flow unit unless the metric version was ordered To change the units...

Страница 12: ...ly one way with the tab pointing toward the fabric Engage the latches by pressing down on them Notice Remove batteries from the battery compartment during shipping travel and transport Jostling may ja...

Страница 13: ...e opposite corner of the fabric top on a table edge 3 Grasp the support pole Bend the pole slightly to insert the top end of the pole into the support pole cup located in the corner of the fabric fram...

Страница 14: ...s are found the AccuBalance capture hood will proceed to the continuous measurement mode Selecting Flow Direction Each AccuBalance capture hood is calibrated for supply and return air separately for i...

Страница 15: ...ng a flow measurement keep objects out of the flow path at the base of the AccuBalance capture hood one foot clearance minimum However it is acceptable to have a hand supporting the air capture hood a...

Страница 16: ...Chapter 1 10 This page intentionally left blank...

Страница 17: ...ype of duct work The AccuBalance capture hood is calibrated by attaching it to a 2 foot x 2 foot 4 way throw diffuser In some circumstances it is necessary to traverse the ductwork to determine the tr...

Страница 18: ...the time constant SAMPLE will flash on the display while the reading is being taken and then the value and SAMPLE will be held on the display until SAMPLE is pressed again at which time the instrument...

Страница 19: ...hen up and over the frame structure The Velcro on the fabric reaches down to mate with the Velcro on the frame structure Notice also that all Velcro surfaces on the frame tubing face inward Finally fo...

Страница 20: ...o surfaces firmly together When completed the hood fabric will be stretched fairly taut and will require good bonding of the fabric to the frame 4 Stretch the cinch belt at the bottom of the fabric ov...

Страница 21: ...c 8 Repeat step 7 until all four support poles are installed 9 Now that the hood is assembled and the fabric is stretched tight it is a good practice to check the rubber gasket around the top edge of...

Страница 22: ...d the 1 ft x 5 ft frame structure as shown in Figure 8 using four 2 ft aluminum frame tubing pieces two 1x tube connectors two 1 ft aluminum frame tubing pieces and four right angle tubing connectors...

Страница 23: ...pport pole cups in the aluminum frame tubing pieces are facing downward Figure 9 Diagram of 3 ft x 3 ft frame 2 Unfold the 3 ft x 3 ft fabric hood Continue with steps 3 through 10 beginning on page 14...

Страница 24: ...ch Number Setting Function 1 2 1 OFF 2 OFF Flow units CFM 1 OFF 2 ON Flow units m3 hr 1 ON 2 OFF Flow units l s 1 ON 2 ON Flow units m3 min 3 OFF Pressure units in Hg ON Pressure units mm Hg 4 OFF Tem...

Страница 25: ...to the left of the display The printer can also be easily used by clipping it to the belt of the user The printer must be set to the same baud rate as the AccuBalance capture hood Always turn the Acc...

Страница 26: ...Chapter 2 20 This page intentionally left blank...

Страница 27: ...ides of the fabric for temporary repair To replace a damaged fabric or to order a different fabric size contact TSI for replacement fabric information To order a new hood fabric use the following part...

Страница 28: ...ument case or storage case needs cleaning wipe it off with a soft cloth and isopropyl alcohol or a mild detergent Never immerse the AccuBalance capture hood If the meter face of the AccuBalance captur...

Страница 29: ...s ON OFF button Replace the batteries Clean the battery contacts Plug in battery holder flashing on the display Low battery charge Dirty battery contacts Replace the batteries Clean the battery contac...

Страница 30: ...outside of operating temperature Temperature compensation sensor is damaged Allow unit to stabilize in the operating temperature range of 32 to 140 F 0 to 60 C Return to the factory for service ERR2 a...

Страница 31: ...having a more abrupt contraction than the AccuBalance capture hood may induce greater back pressure due to the turbulence caused by the abrupt contraction In addition any apparatus within the hood su...

Страница 32: ...ctor Cb can be determined as follows Vo Cb 1 V where V and Vo are the average air velocities in the duct ahead of the diffuser with and without the capture hood in place respectively With the known co...

Страница 33: ...ollution degree 1 in accordance with IEC 664 Weight using 2 ft 2 ft in Hood 7 lb 6 oz 3 4 kg Power 4 C size batteries 4 alkaline batteries provided Battery Life At least 40 hrs of continuous use Carry...

Страница 34: ...more information USA Tel 1 800 874 2811 UK Tel 44 149 4 459200 France Tel 33 4 91 11 87 64 Germany Tel 49 241 523030 India Tel 91 80 67877200 China Tel 86 10 8251 6588 Singapore Tel 65 6595 6388 P N 1...

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