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Summary of Contents for TSI Incorporated VELOCICALC Plus 8383
- Page 1 Model 8360/8382/8383/8388 Plus ELOCI Air Velocity Meters Operation and Service Manual September 1998 P/N 1980253 Rev C...
- Page 3 ELOCI Air Velocity Meters Operation and Service Manual September 1998 P/N 1980253 Rev C SHIP TO: MAIL TO: TSI Incorporated TSI Incorporated 500 Cardigan Road P.O. Box 64394 Shoreview, MN 55126-3996 St. Paul, MN 55164-0394 U.S. INTERNATIONAL Sales and Customer Service:...
- Page 4 Copyright TSI Incorporated/September 1996/All rights reserved. Address TSI Incorporated/P.O. Box 64394/St. Paul, MN 55164/USA Fax No. (651) 490-2874 LIMITATION OF WARRANTY AND LIABILITY. Seller warrants that this product, under normal use and service as described in the operator's manual, shall be free from defects in workmanship and material for a period of twenty-four (24) months, or the length of time specified in operator's manual, from the date of shipment to the customer.
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Page 5: Table Of Contents
CONTENTS Chapters Unpacking and Parts Identification........1 List of Components ...............1 Setting-Up................3 Supplying Power to the V ........3 ELOCI Installing the Batteries............3 Selecting the Display Units ...........3 Using the Telescoping Probe..........3 Extending the Probe ............4 Retracting the Probe ............4 Operation ................5 Overview ................5 Keypad Functions ..............5 ON/OFF Switch..............5... - Page 6 Maintenance ..............11 Probe Tip................11 Recalibration ..............11 Cases ................. 11 Storage................11 Troubleshooting............... 13 Appendices Specifications ..............15 DIP Switch Settings............17 Standard Velocity vs. Actual Velocity......... 19 Available Application Notes • Constant Temperature Thermal Anemometry Theory ..#TI-105 •...
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Page 7: 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. - Page 8 Parts Identification Figure 1-1 V ELOCI 1. On/Off Switch 4. Probe Mounting Clips 2. Display 5. Pressure Measurement Ports 3. Function Keys 6. Battery Access Cover Chapter 1...
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Page 9: Setting-Up
Chapter 2 Setting-Up Supplying Power to the V ELOCI The V can be powered in one of two ways: four size AA batteries ELOCI 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 10: Extending The Probe
or held in your hand. If the probe is to be used mounted to the V ELOCI °, remove the probe from its stowed position, turn it 180 and reinstall (pointing upward) in the probe mounting brackets. Extending The Probe To extend the probe, hold the handle in one hand while pulling on the probe tip with the other hand. -
Page 11: Operation
Chapter 3 Operation Overview The Model 8360/8382/8383/8388 V measures air velocity, ELOCI temperature, differential pressure, and calculates volumetric flow rates. In addition the 8360/8388 V measures relative humidity and ELOCI calculates dew point from the temperature and relative humidity readings. The Model 8383 V has an articulating probe. -
Page 12: Measuring Pressure
switching to temperature mode. This is necessary because the velocity sensor is heated during velocity mode, and some heat is conducted down to the temperature sensor. Measuring Pressure Press the PRESSURE key to measure differential pressure. To measure pressure, tubing must be connected to the pressure ports on the top back of the unit. -
Page 13: Flow Rate Function
will be less accurate when the relative humidity is less than 50% (and dew point temperature is farther away from the actual temperature). Flow Rate Function The V ’s flow rate function can calculate flow rate using a known ELOCI area. -
Page 14: Flow Rate (Calculated Using Pressure And Flow Factor, Models 8382, 8383, And 8388 Only)
Flow Rate (Calculated Using Pressure and Flow Factor, Model 8382, 8383, and 8388 Only) This option is available with Model 8382/8383/8388 only when DIP switch #6 is ON (refer to Appendix B). The flow rate through a diffuser is calculated by multiplying a pressure reading by a manufacturer-supplied flow factor. -
Page 15: Time Constant Function
Time Constant Function Momentarily press and release the TIME CONSTANT key to view the current time-constant. To change the time-constant, press and hold the key. The available time-constant choices ( 1, 5, 10, 15 and 20 seconds) will sequence on the display. When the desired value is displayed immediately release the key. -
Page 16: Average Function
When using the flow rate from pressure measurement mode, changing the flow factor value will automatically clear the flow rate storage buffer. Average Function Press the AVERAGE key to display the average of the stored values of the current operating mode. The message “AVG” will appear along with a number (between 1 and 255) indicating how many stored values are in the memory buffer. -
Page 17: 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 off for cleaning. Do not ELOCI use high-pressure air, strong solvents, or brushes to clean the sensor tip;... -
Page 19: Troubleshooting
Chapter 5 Troubleshooting Table 5 lists the symptoms, possible causes, and recommended solutions for common problems encountered with the V . If your symptom is ELOCI not listed, or if none of the solutions solves your problem, please contact TSI. Table 5. - Page 20 Warning! Remove the probe from excess temperature immediately: excessive heat can damage the sensor. The pressure sensor is protected from damage up to 10 psi. (75 kPa or 560 mm Hg) At higher pressures it can burst! Notice: There is sometimes confusion between dew point temperature and wet-bulb temperature when comparing V ELOCI humidity readings to sling psychrometer readings.
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Page 21: Specifications
Appendix A Specifications Model 8360/8388 Models 8382/8383 Plus Plus ELOCI ELOCI Velocity Measurement Range 30 to 9,999 ft/min Same (0.15 to 50 m/s) Accuracy 3% of reading or 3 ft/min (0.02 Same ¹ m/s), whichever is greater Temperature Measurement Range 14 to 140°F (-10 to 60°C) 0 to 200°F (-17.8 to 93.3°C) Resolution... - Page 22 Model 8360/8388 Models 8382/8383 Plus Plus ELOCI ELOCI (Cont.) (Cont.) Response Time (63% of final value) To Velocity 200 milliseconds Same To Temperature 8 seconds Same Time Constant Adjustable from 1 to 20 sec. Same Physical Dimensions External Dimensions 4.2 in x 7.2 in x 1.5 in Same (107 mm x 183 mm x 38 mm) Probe Length...
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Page 23: 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. - Page 24 DIP SWITCH Figure B - 1: DIP Switch Location Appendix B...
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Page 25: 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°... - Page 26 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). ...
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