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Summary of Contents for TSI Incorporated VelociCalc 8345
- Page 1 V e n t i l a t i o n T e s t i n g / B a l a n c i n g Model 8345/8346/8347/8347A ® ELOCI Air Velocity Meters Operation and Service Manual 1980277, Revision E November 2002...
- Page 3 U.S. INTERNATIONAL Sales and Sales and Customer Service: Customer Service: (800) 874-2811 (001 651) 490-2811 (651) 490-2811 Fax: Fax: (651) 490-3824 (001 651) 490-3824 SHIP/MAIL TO: E-mail address: TSI Incorporated answers@tsi.com 500 Cardigan Road Website: Shoreview, MN 55126-3996 USA www.tsi.com...
- Page 5 Copyright TSI Incorporated / August 2000–2002 / All rights reserved. Address TSI Incorporated / 500 Cardigan Road / Shoreview, MN 55126 / Fax No. (651) 490-3824 LIMITATION OF WARRANTY AND LIABILITY. Seller warrants the goods sold hereunder, under normal use and service as described in...
- Page 6 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 OPTION OF SELLER, THE REPAIR OR REPLACEMENT OF THE GOODS. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES.
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Page 7: Table Of Contents
CONTENTS Chapters 1. Unpacking and Parts Identification ..1 Parts Identification ........2 2. Setting-Up..........5 Supplying Power to the V ..5 ELOCI Installing the Batteries ......5 Using the Optional AC Adapter ....5 Auto Power Off Feature ......6 Selecting the Display Units ....... - Page 8 Using the Clear, Sample and Statistics Functions ..........14 Sample Function........14 Statistics Function......... 15 Clear Function ........16 Printer Port..........16 4. Maintenance .......... 19 Probe Tip ..........19 Recalibration ........... 19 Cases............20 Storage ........... 20 5. Troubleshooting........21 Appendixes A Specifications ........
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Page 9: Chapters
Chapter 1 Unpacking and Parts Identification Carefully unpack the instrument and accessories from the shipping container. Check the individual parts against the list of components in Table 1. If any are missing or damaged, notify TSI or your local distributor immediately. Table 1. -
Page 10: Parts Identification
Parts Identification 1. Keypad 2. Display 3. Printer Interface Port 4. Battery Access Cover Chapter 1... -
Page 11: Setting-Up
Chapter 2 Setting-Up Supplying Power to the V ELOCI The V can be powered in one of two ELOCI ways: four size AA batteries or the optional AC adapter. Installing the Batteries Insert four AA batteries as indicated by the diagram located on the inside of the battery compartment. -
Page 12: Auto Power Off Feature
Auto Power Off Feature The V ’s auto power off feature will ELOCI automatically power the instrument off after a specified time. In velocity mode, the instrument will power off after 15 minutes provided that the velocity is zero and no keys have been pressed during this time. -
Page 13: Using The Telescoping Probe
If you wish to change the display units on your , see Appendix B, “DIP Switch ELOCI Settings.” Using The Telescoping Probe The telescoping probe of the V contains ELOCI the velocity, temperature, and humidity sensors. When using the probe, make sure the sensor window is fully exposed and the orientation dot is facing upstream. -
Page 14: Articulating Probe (Model 8346/8347A)
Articulating Probe (Model 8346/8347A) The articulating probe has the ability to bend at a 90° angle for those hard to reach places. To bend the probe of the Model 8347A, loosen the knurled nut on the joint, bend the probe, and tighten the nut. To straighten the probe, loosen the nut, straighten the probe, and tighten the nut. -
Page 15: Operation
Chapter 3 Operation Overview The Model 8345/46 V measures air ELOCI velocity and temperature and calculates volumetric flow rate. The Model 8347/47A measures air velocity, temperature, volumetric flow rate, humidity, dew point temperature, and wet bulb temperature. Models 8346 and 8347A have an articulating probe. -
Page 16: Measuring Velocity
that includes an internal self-check. First, all displayable items will appear for a few seconds. If a problem is detected, the display will light ‘CAL’ to indicate that it should be returned for servicing and calibration. Measuring Velocity Press the VELOCITY key to display velocity measurements (the V will automatically ELOCI... -
Page 17: Flow Rate Function
Flow Rate Function The V ’s flow rate function can calculate ELOCI flow rate using a known area. The V ELOCI displays the volumetric flow rate in ft /min, m /hr, or l/s, depending on the DIP switch setting (refer to Appendix B). -
Page 18: Humidity Function (Model 8347/8347A)
FLOWRATE key. This will enter the shape and the V will then ask for the size. ELOCI Use the up and down arrow keys ( ) to select the size of the flow rate area. For a circular flow shape the V will ask ELOCI for one size, the diameter of the circular area. -
Page 19: Time Constant Function
barometric pressure. Use the arrow keys to change the barometric pressure and press ENTER to accept it and return to measuring mode. NOTE: 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. -
Page 20: Using The Clear, Sample And Statistics Functions
For example, if the current time constant is set to 10 seconds, the display will show readings averaged over the previous 10 seconds, updated every second. This is also called a 10 second “moving average.” Using the Clear, Sample and Statistics Functions The V has the ability to compute the... -
Page 21: Statistics Function
statistics buffers: one for both velocity and flow rate, temperature, humidity, dew point temperature, and wet bulb temperature. You can switch between measuring modes and sample data without affecting the statistics in the buffer for another measuring mode. You can later return to any mode and add additional values to the existing statistics. -
Page 22: Clear Function
additional values are averaged with those already accumulated. Clear Function Press the CLEAR key to erase the sampled values in the buffer of the currently active function. Pushing the CLEAR key for velocity/flow rate will not affect the values in temperature, humidity, dew point, or wet bulb buffer. -
Page 23: Maintenance
Chapter 4 Maintenance Probe Tip Periodically inspect the probe tip to ensure that it is clean. Dust and oil deposits on the velocity sensor decrease the accuracy of the V ELOCI Caution: The V must be switched ELOCI off for cleaning. Do not use high- pressure air or strong solvents to clean the sensor tip;... -
Page 24: Cases
it to you with a certificate of calibration and US National Institute of Standards and Technology (NIST) traceability. This 'annual checkup' assures you of consistently accurate readings; it is especially important in applications where strict calibration records must be maintained. Cases If the instrument case or storage case needs cleaning, wipe it off with a soft cloth and isopropyl... -
Page 25: Troubleshooting
Chapter 5 Troubleshooting Table 5 lists the symptoms, possible causes, and recommended solutions for common problems encountered with the V . If your ELOCI symptom is not listed, or if none of the solutions solves your problem, please contact TSI. Table 5. - Page 26 Possible Symptom Causes Corrective Action Display Low battery Replace or reads "LO" charge recharge batteries. Wrong AC Replace with the adapter correct AC adapter. Low AC line Correct the AC voltage line voltage or use batteries. Dirty battery Clean the battery contacts contacts.
- Page 27 Possible Symptom Causes Corrective Action Display Return to factory reads "CAL" for service. ELOCI has detected an internal fault Velocity The flow is Reposition the reading fluctuating probe in a less fluctuates turbulent section badly of the flow or use a longer time constant.
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Page 29: A Specifications
Appendix A Specifications Specifications are subject to change without notice. Specifications in parentheses () indicate metric equivalents. VELOCITY: Range: 0 to 6000 ft/min (0 to 30 m/s) 1&2 3.0% of reading or ± 3 ft/min Accuracy (± 0.015 m/s), whichever is greater TEMPERATURE: 0 to 200 °F (-17.8 to 93.3 °C) Range (8345/46):... -
Page 30: Response Time
DUCT SIZE: Range: 1 to 100 inches in increments of 0.5 inches, 100 to 255 inches in increments of 1 inch (1 to 100 cm in increments of 0.5 cm, 100 to 255 cm in increments of 1 cm) RELATIVE HUMIDITY (MODELS 8347/8347A): Range: 0 to 95% RH Accuracy... -
Page 31: Power Requirements
EXTERNAL METER DIMENSIONS: Size measurements: 3.9 in. x 6.6 in. x 1.5 in. (10 cm x 16.8 cm x 3.8 cm) METER PROBE DIMENSIONS: Probe length (8345): 37 in. (94 cm) telescopic Probe length (8346): 37 in. (94 cm) telescopic articulating Probe length (8347): 40 in. -
Page 33: Dip Switch Settings
Appendix B DIP Switch Settings To access the DIP switches, remove the batteries from the battery compartment. On the inside of the battery compartment, there is a window with eight DIP switches. The table below shows the functions for each switch. Caution: Make certain that power is turned off before changing DIP switch settings. - Page 34 Switch Function Velocity ft/min & /min Flow Rate* Temperature Degrees Degrees Fahrenheit Celsius (°F) (°C) Decimals “.” used in “,” used in printing printing Auto off Automatic Auto off disable power off disabled Sample data Data lost Data kept on manual power off Reserved Reserved...
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Page 35: C Standard Velocity Vs. Actual Velocity
Appendix C Standard Velocity vs. Actual Velocity Since thermal air velocity sensors are sensitive to changes in air density and air velocity, all thermal anemometers indicate velocities with reference to a set of standard conditions. For TSI instruments, standard conditions are defined as 70° F (21.1° C) and 14.7 psia (101.4 kPa). - Page 36 14 7 Actual Velocity Standard Velocity 460 70 Where T = Ambient temperature in degrees Fahrenheit P = Ambient pressure in psia If you use metric units, the equation becomes: ...
- Page 37 Example No. 1: You want to measure the actual velocity in a duct. The air temperature in the duct is 55°F and the pressure is 14.24 psia. You take a measurement and the display reads 1200 feet per minute (ft/min). ...
- Page 38 TSI Incorporated 500 Cardigan Road, Shoreview, MN 55126 U.S.A. Web: www.tsi.com...
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