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VELOCICALC®
AIR VELOCITY METER
MODEL 9515
OPERATION AND SERVICE MANUAL
P/N 1980555, REVISION F
NOVEMBER 2020
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Copyright
TSI Incorporated / 2007–2020 / All rights reserved.
LIMITATION OF WARRANTY AND LIABILITY (effective February 2015)
Seller warrants the goods, excluding software, sold hereunder, under normal use and
service as described in the operator's manual, to be free from defects in workmanship and
material for 24 months, or if less, the length of time specified in the operator's manual, from
the date of shipment to the customer. This warranty period is inclusive of any statutory
warranty. This limited warranty is subject to the following exclusions and exceptions:
a. Hot-wire or hot-film sensors used with research anemometers, and certain other
components when indicated in specifications, are warranted for 90 days from the date
of shipment;
b. Pumps are warranted for hours of operation as set forth in product or
operator’s manuals;
c. Parts repaired or replaced as a result of repair services are warranted to be free from
defects in workmanship and material, under normal use, for 90 days from the date
of shipment;
d. Seller does not provide any warranty on finished goods manufactured by others or on
any fuses, batteries or other consumable materials. Only the original manufacturer's
warranty applies;
e. This warranty does not cover calibration requirements, and seller warrants only that the
instrument or product is properly calibrated at the time of its manufacture. Instruments
returned for calibration are not covered by this warranty;
f. This warranty is VOID if the instrument is opened by anyone other than a factory
authorized service center with the one exception where requirements set forth in the
manual allow an operator to replace consumables or perform recommended cleaning;
g. This warranty is VOID if the product has been misused, neglected, subjected to
accidental or intentional damage, or is not properly installed, maintained, or cleaned
according to the requirements of the manual. Unless specifically authorized in a
separate writing by Seller, Seller makes no warranty with respect to, and shall have no
liability in connection with, goods which are incorporated into other products or
equipment, or which are modified by any person other than Seller.
The foregoing is IN LIEU OF all other warranties and is subject to the LIMITATIONS stated
herein. NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR
PARTICULAR PURPOSE OR MERCHANTABILITY IS MADE. WITH RESPECT TO
SELLER’S BREACH OF THE IMPLIED WARRANTY AGAINST INFRINGEMENT, 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 DISCOUNTED FOR
REASONABLE WEAR AND TEAR OR AT SELLER’S OPTION REPLACEMENT OF THE
GOODS WITH NON-INFRINGING GOODS.
TO THE EXTENT PERMITTED BY LAW, THE EXCLUSIVE REMEDY OF THE USER OR
BUYER, AND THE LIMIT OF SELLER'S LIABILITY FOR ANY AND ALL LOSSES,
INJURIES, OR DAMAGES CONCERNING THE GOODS (INCLUDING CLAIMS 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 THE CASE OF SOFTWARE, SELLER WILL REPAIR OR REPLACE DEFECTIVE
SOFTWARE OR IF UNABLE TO DO SO, WILL REFUND THE PURCHASE PRICE OF
THE SOFTWARE. IN NO EVENT SHALL SELLER BE LIABLE FOR LOST PROFITS,
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BUSINESS INTERRUPTION, OR ANY SPECIAL, INDIRECT, CONSEQUENTIAL OR
INCIDENTAL DAMAGES. SELLER SHALL NOT BE RESPONSIBLE FOR INSTALLATION,
DISMANTLING OR REINSTALLATION COSTS OR CHARGES. No Action, regardless of
form, may be brought against Seller more than 12 months after a cause of action has
accrued. The goods returned under warranty to Seller's factory shall be at Buyer's risk of
loss, and will be returned, if at all, at Seller's risk of loss.
Buyer and all users are deemed to have accepted this LIMITATION OF WARRANTY AND
LIABILITY, which contains the complete and exclusive limited warranty of Seller. This
LIMITATION OF WARRANTY AND LIABILITY may not be amended, modified or its terms
waived, except by writing signed by an Officer of Seller.
Service Policy
Knowing that inoperative or defective instruments are as detrimental to TSI as they are
to our customers, our service policy is designed to give prompt attention to any
problems. If any malfunction is discovered, please contact your nearest sales office or
Trademarks
TSI, the TSI logo, and VelociCalc are registered trademarks of TSI Incorporated in the
United States and may be protected under other country’s trademark registrations.
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CONTENTS
CHAPTER 1 UNPACKING AND PARTS IDENTIFICATION ............ 1
CHAPTER 2 SETTING-UP ................................................................. 3
Supplying Power to the Model 9515 VelociCalc
®
Air Velocity
Meter ............................................................................................... 3
Installing the Batteries ............................................................... 3
Using The Telescoping Probe ........................................................ 3
Extending The Probe ................................................................. 3
Retracting The Probe ................................................................ 3
CHAPTER 3 OPERATION ................................................................. 5
Keypad Functions ........................................................................... 5
CHAPTER 4 MAINTENANCE ............................................................ 7
Recalibration ................................................................................... 7
Cases .............................................................................................. 7
Storage ........................................................................................... 7
CHAPTER 5 TROUBLESHOOTING .................................................. 9
APPENDIX A SPECIFICATIONS ..................................................... 11
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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 below. If anything is missing or damaged, notify
TSI® Incorporated immediately.
1. Carrying case
2. Instrument
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Chapter 2
NO T E
For temperature measurements, make sure that at least 3 inches
(7.5 cm) of the probe is in the flow to allow the temperature sensor to
be in the air stream.
Setting-up
Supplying Power to the Model 9515 VelociCalc
Velocity Meter
The Model 9515 is powered with four size AA batteries.
Installing the Batteries
Insert four AA batteries as indicated by the diagram located on
the inside of the battery compartment. The Model 9515 is
designed to operate with either alkaline or NiMH rechargeable
batteries, although it will not recharge NiMH batteries. Battery life
will be shorter if NiMH batteries are used. Carbon-zinc batteries
are not recommended because of the danger of battery acid
leakage.
Using the Telescoping Probe
The telescoping probe contains the velocity and temperature sensors.
When using the probe, make sure the sensor window is fully exposed
and the orientation dimple is facing upstream.
®
Air
Extending the Probe
To extend the probe, hold the handle in one hand while pulling on
the probe tip with the other hand. Do not hold the cable while
extending the probe as this prevents the probe from extending.
Retracting the Probe
To retract the probe, hold the handle in one hand while pulling
gently on the probe cable with the other hand.
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Chapter 3
Operation
Keypad Functions
ON/OFF Key
Press to turn the Model 9515 on and off.
During the power up sequence the display will
show the following: Model Number, Serial
Number, Software Revision, and Last Date
Calibrated.
ft/min / m/s Key
Pressing this key changes the display to read
air velocity.
°C / °F Key
Pressing this key changes the display to read
temperature.
Changing Units
To change units, first put the desired
measurement (air velocity or temperature) on
the display. Then press and hold the left,
unlabelled key for five seconds. Finally, use
the and ENTER key to select the units.
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Chapter 4
Maintenance
The Model 9515 requires very little maintenance to keep it
performing well.
Recalibration
To maintain a high degree of accuracy in your measurements, TSI®
recommends that you return your Model 9515 to TSI® Incorporated
for annual recalibration. Please contact one of TSI’s offices or your
local distributor to make service arrangements and to receive a
“Service Request” number. To fill out an online “Service Request”
U.S. & International
TSI Incorporated
Cases
If the instrument case or storage case needs cleaning, wipe it off
with a soft cloth and isopropyl alcohol or a mild detergent. Never
immerse the Model 9515. If the enclosure of the Model 9515
becomes broken, it must be replaced immediately to prevent access
to hazardous voltage.
Storage
Remove the batteries when storing the unit for more than one month
to prevent damage due to battery leakage.
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Chapter 5
Troubleshooting
Table 5-1 lists the symptoms, possible causes, and recommended
solutions for common problems encountered with the Model 9515. If
your symptom is not listed, or if none of the solutions solves your
problem, please contact TSI® Incorporated.
Table 5-1: Troubleshooting the VelociCalc® Model 9515
Symptom Possible Causes Corrective Action
No Display Unit not turned on Switch unit on.
Low or dead batteries Replace batteries.
Dirty battery contacts Clean the battery
contacts.
Velocity reading
fluctuates unstable
Instrument Error
message appears
Fluctuating flow Reposition probe in
less-turbulent flow
Fault in instrument Factory service required
on instrument.
W A R N I N G !
Remove the probe from excessive temperature immediately:
excessive heat can damage the sensor. Operating temperature
limits can be found in Appendix A, Specifications.
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Appendix A
Specifications
Specifications are subject to change without notice.
Velocity:
Range: 0 to 4000 ft/min (0 to 20 m/s)
Accuracy
1&2
: ±5% of reading or ±5 ft/min (±0.025 m/s),
whichever is greater
Resolution: 1 ft/min (0.01 m/s)
Temperature:
Range: 0 to 200°F (-18 to 93°C)
Accuracy3: ±0.5°F (±0.3°C)
Resolution: 0.1°F (0.1°C)
Instrument Temperature Range:
Operating (Electronics): 40 to 113°F (5 to 45°C)
Operating (Probe): 0 to 200°F (-18 to 93°C)
Storage: -4 to 140°F (-20 to 60°C)
External Meter Dimensions:
3.3 in. 7.0 in. 1.8 in. (8.4 cm 17.8 cm 4.4 cm)
Meter Weight:
Weight with batteries: 0.6 lbs (0.27 kg)
Power Requirements:
Four AA-size batteries (included)
1
Temperature compensated over an air temperature range of 40 to 150°F (5 to
65°C).
2
The accuracy statement of ±5.0% of reading or ±5 ft/min (±0.025 m/s), whichever is
greater, begins at 30 ft/min through 4000 ft/min (0.15 m/s through 20 m/s).
3
Accuracy with instrument case at 77°F (25°C), add uncertainty of 0.05°F/°F
(0.03°C/°C) for change in instrument temperature.
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