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Preparing to Traverse a Round Duct

Preparing the Duct

To do a proper airflow measurement (CFM) you should do traverse
readings to obtain the true average airflow through the duct. You will
need to drill 2 holes at 90 degrees to each other, similar to the draw-
ing below.

1. Take your measurements by inserting the hotwire probe into the
drilled hole. and use the insertion depth chart to determine how far in
the duct you will go for each point. Then you will repeat for the other
hole.

2. Be sure you have the tip of the hotwire pointed into the flow of air,
there is a white dot on the tip, this should be inline with the flow.
HINT: If you turn the probe you will see the readings change up or
down, when the reading is at the highest you are in the proper posi-
tion.

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Содержание 637623600616

Страница 1: ...DC580 Digital Air Velocity Meter The Value LeaderTM www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Страница 2: ...d Reading Page 12 Preparing to Traverse a Rectangular Duct Page 13 Time Based Traverse of a Horizontal Duct Page 14 16 Point Based Traverse of a Horizontal Duct Page 17 19 Preparing to Traverse a Round Duct Page 20 Time Based Traverse of a Round Duct Page 21 23 Point Based Traverse of a Round Duct Page 24 26 Traversing a Grille Page 27 28 Auto Off Backlight Hold and Min Max Avg Page 29 Bluetooth A...

Страница 3: ...probes Features Guidelines Features Measure air velocity and temperature simultaneously Field replaceable smart hot wire and vane probes Communicate with Android Smart Phone via Bluetooth LE and TPI App Display minimum maximum average Multiple measuring units m s km h ft min knots mile h Guidelines Always allow the DC580 sufficient time to acclimate to the test environ ment especially when moving ...

Страница 4: ... to metal surfaces Keypad Selects all available functions Hanger Hook Attachment Point Used with optional boot hook p n A103 Hanger Stap Attachment Point Used with optional magnetic hanger strap p n A124 Rubber Boot Display Keypad Probe Input Jack 2 Magnets Hanger Strap Attachment Point Hanger Hook Attachment Point DC580 Front DC580 Back www GlobalTestSupply com Find Quality Products Online at sal...

Страница 5: ...second km h kilometers per hour knots CFM cubic feet per minute CMM cubic meters per minute C F Indicates temperature in Celsius or Fahrenheit cm2 ft2 Duct size in square centimeters or square inches HW Vane Indicates probe connection Hot Wire or Vane Indicates Bluetooth status Free Area Amount of area blocked by grille register etc Dia Diameter of duct if it is round H Height of duct if it is squ...

Страница 6: ...o turn the DC580 on and off Press and hold Use to setup duct type and size Use to navigate left in menu mode Use to activate time and point record modes and to cycle through min max and average readings Use to setup units of measurement for air velocity air vol ume temperature and duct size Use to return to normal operation from recall mode Use to navigate right in setup mode menus Use to recall a...

Страница 7: ...rements Make sure the temperature sensor is not covered Replace the cover when not in use Hot Wire Probe Sensors Hot Wire Probe Part number A581 Vane Probe Part number A582 Vane probe for the DC580 This probe can be used to measure air velocity and flow at registers hoods and other openings The white line dot should face into the air stream Note The DC580 can be purchased to include one or both of...

Страница 8: ...sition before connecting the probe When the hot wire probe is connected a 5 second warm up period will begin and the display will read H d and display the countdown After the countdown the DC580 is ready to take measurements Slide the cover down to the open position and perform tests Vane Probe Connect the vane probe and the DC580 is ready to take measurements After power is turned on and a probe ...

Страница 9: ... and CMM are available When the desired unit is displayed press the key to move to temperature units 5 Press the key to cycle between temperature units ºF and ºC are available When the desired unit is displayed press the key to move to duct dimension units 6 Press the key to cycle through the duct dimension units Inches in centimeters cm meters m and feet ft are available When the desired unit of ...

Страница 10: ... a supply or return with an obstruction like a grille NOTE The free area of the duct must be known This is published by the grille manufac turer 4 Once the duct type is displayed round rectangular or free area press the key to confirm the selection Round Duct Use the keys to enter the diameter of the duct Press the key to confirm the selection Rectangular Duct Use the keys to enter the height H of...

Страница 11: ...ddle of a duct or if the grille is removed from the return or supply duct When measuring airflow with a grille in place or restriction present the free area is the total area minus the area covered by the restriction grille fins Grille manufacturers publish free area specifications and this is the most accurate information to use when setting up your DC580 to measure air flow volume Whenever possi...

Страница 12: ...velocity probe into the air stream with the white dot facing into the air If the hotwire probe is being used make sure the sliding cover is in the down position and the sensor is exposed 6 The air velocity will be displayed in the upper display and the temperature will be displayed in the lower display The most accurate way to take a reading of a duct or grille is to traverse it and take the avera...

Страница 13: ...ment once the reading is on the display press the key 2 The display will prompt you for a memory location to store the reading To cancel press the key or use the keys to select the memory location to store the reading then press the key Clearing Memory Saving data to the same memory location will write over the data already saved All locations can be cleared by pressing the key to enter memory mod...

Страница 14: ... between the stored air velocity and air volume 5 Press the key to exit recall and return to normal operation Stored information can also be sent to the DC580 App The app will display the duct size and also provides the ability to export the data to a CSV file or send a report via email Please see page 30 for more information on the app Stored air velocity and temperature displayed Press the enter...

Страница 15: ...ime based is typically easier but both are explained in the next sections 1 You will need to determine the easiest access to take your read ings Normally it is best to enter from the side Height of the duct since you will have to drill less holes but you may have to drill from the bottom Width of the duct See below Ideal side to enter the duct Not the ideal side to enter the duct but may be neces ...

Страница 16: ... key to select time based traverse record 4 Press the key to confirm the selection 5 Insert the hotwire probe all the way into the duct at the first hole Make sure the white dot is facing the air flow HINT If you turn the probe you will see the readings change up or down when the reading is at the highest you are in the proper position Press the Up Arrow key repeatedly until the timer symbol is se...

Страница 17: ...ance point of the duct 8 Stop at the last measurement point prior to pulling the probe out of the duct Press the key to pause the recording Start with the probe all the way into the duct Press the key Slowly pull the probe to the entrance hole Before removing the probe see step 8 15 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Страница 18: ...ing readings This will store the average air velocity air volume and temperature readings 13 If another traverse needs to be made press the key to clear the timer and begin traversing a duct If finished press and hold the key to exit record and return to normal operation The stored readings can be recalled and displayed see page 12 or sent to the DC580 app see page 30 Note At any time during the t...

Страница 19: ...confirm the selection 5 Divide the duct into at least 12 equal boxes you will need to take the reading in the center of each box Be sure that the sample points are no more than 4 inches apart from center to center If needed you can add more sample points boxes to cover larger duct sizes Insert the hotwire probe all the way into the duct at the first hole Make sure the white dot is facing the air f...

Страница 20: ...Stop at each point and press the key to record reading 8 Pull the probe out and insert it into the next test hole all the way into the duct Start with the probe all the way into the duct Press the Enter key Slowly pull the probe to the entrance hole Stop at each point and press the Enter key 18 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Страница 21: ...elocity air volume and temperature readings 11 If another traverse needs to be made press the key to clear the counter and begin traversing a duct If finished press and hold the key to exit record and return to normal operation Note At any time during the traverse process when REC is dis played the key can be repeatedly pressed to cycle through the minimum MIN maximum MAX and average AVG read ings...

Страница 22: ...e into the drilled hole and use the insertion depth chart to determine how far in the duct you will go for each point Then you will repeat for the other hole 2 Be sure you have the tip of the hotwire pointed into the flow of air there is a white dot on the tip this should be inline with the flow HINT If you turn the probe you will see the readings change up or down when the reading is at the highe...

Страница 23: ...ious page 3 Press the key The display will prompt for time or point based traverse Use the key to select time based traverse record 4 Press the key to confirm the selection 5 Insert the hotwire probe all the way into the duct at the first hole Make sure the white dot is facing the air flow Press the Up Arrow key repeatedly until the timer symbol is seen 21 www GlobalTestSupply com Find Quality Pro...

Страница 24: ...ce point of the duct 8 Stop at the last measurement point prior to pulling the probe out of the duct Press the key to pause the recording Start with the probe all the way into the duct Press the key Slowly pull the probe to the entrance hole Before removing the probe see step 8 22 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Страница 25: ...e the readings See section page 11 on storing readings This will store the average air velocity air volume and temperature readings 13 If another traverse needs to be made press the key to clear the timer and begin traversing a duct If finished press and hold the key to exit record and return to normal operation Note At any time during the traverse process when REC is dis played the key can be rep...

Страница 26: ...onfirm the selection 5 Divide the duct into at least 10 equal boxes you will need to take the reading in the center of each box Be sure that the sample points are no more than 4 inches apart from center to center If needed you can add more sample points boxes to cover larger duct sizes Insert the hotwire probe all the way into the duct at the first hole Make sure the white dot is facing the air fl...

Страница 27: ...and press the key to record reading 8 Pull the probe out and insert it into the other test hole all the way into the duct Start with the probe all the way into the duct Press the key Slowly pull the probe to the entrance hole Stop at each point and press the key Stop at each point and press the Enter key 25 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Страница 28: ...city air volume and temperature readings 11 If another traverse needs to be made press the key to clear the counter and begin traversing a duct If finished press and hold the key to exit record and return to normal operation Note At any time during the traverse process when REC is dis played the key can be repeatedly pressed to cycle through the minimum MIN maximum MAX and average AVG read ings 26...

Страница 29: ... the manufacturer 3 Press the key The display will prompt for time or point based traverse Use the key to select time based traverse record 4 Press the key to confirm the selection 5 Put the vane probe so the white dot is facing the air flow Press the key to begin recording Press the Up Arrow key repeatedly until the timer symbol is seen 27 www GlobalTestSupply com Find Quality Products Online at ...

Страница 30: ...rage air velocity air volume and temperature readings 9 If another traverse needs to be made press the key to clear the timer and begin traversing a duct If finished press and hold the key to exit record and return to normal operation Note At any time during the traverse process when REC is dis played the key can be pressed to cycle through the minimum MIN maximum MAX and average AVG readings Star...

Страница 31: ...turn the backlight off NOTE The backlight will automatically turn off after approximately one minute This is not adjustable and is done to maximize battery life Turning Display Hold On Off The displayed reading can be held on the display if needed From normal operation mode during a measurement press the key to hold the displayed reading Press the key to unhold the reading and return to normal ope...

Страница 32: ...te Bluetooth by pressing and holding the key until the annunciator turns off Turning the DC580 off will also deacti vate Bluetooth Using the DC580 App Connecting to a DC580 Download the DC580 app from the app store 1 Insert a probe in the DC580 and turn it on Activate Bluetooth as outlined above 2 Open the app The main screen will be displayed 3 Tap on Connect to search for available DC580 devices...

Страница 33: ...d in the DC580 memory can be downloaded and seen Your company information can be entered into the app This information will show up on email reports The customer information can be entered into the app This information will show up on email reports Settings like if a grille is present or what type of duct is being tested can be entered All of these can also be accessed from the drop down menu tab ...

Страница 34: ...aved readings from the memory of the DC580 Tap on Update All to begin the download The memory locations being downloaded will be displayed Only locations with data will download Tap on a memory location to see the infor mation contained in it See next page NOTE Downloading information from the DC580 does not delete the data on the DC580 To do this either store over older data or perform a memory c...

Страница 35: ...le can be created and stored on the phone by tapping CSV or the CSV file can be created and emailed by tapping email Tap on Company Information to open the Company Info input screen This is where your company name address and email should be entered This information will be part of the CSV report generated that you can email your customer www GlobalTestSupply com Find Quality Products Online at sa...

Страница 36: ...ary This information will be part of the CSV report generated that you can email your customer Tap on Settings to open the Settings input screen This is where you select whether there was a grille in place and what type of duct was being measured This information will be part of the CSV report generated that you can email your customer 34 www GlobalTestSupply com Find Quality Products Online at sa...

Страница 37: ...Specifications 35 www GlobalTestSupply com Find Quality Products Online at sales GlobalTestSupply com ...

Страница 38: ...t 1 Remove the DC580 from the protective boot by prying the boot off from the bottom of the meter first 2 Locate and loosen the battery cover screw 3 Remove the battery cover and replace the batteries AA x 3 4 Install the battery cover and tighten the cover screw Install the protective boot at starting by inserting the top of the meter into the boot first 36 DC580 battery com partment DC580 batter...

Страница 39: ...anty Service and Calibration The TPI DC580 air velocity meter is guaranteed free from defects in mate rials and workmanship for 3 Years from the date of purchase This guarantee does not affect your statuary rights For additional information please refer to the included warranty card or contact TPI at 800 368 5719 To maintain optimum performance calibration is recommended once every year To obtain ...

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