TSI/Alnor 9515 User manual

ENERGY AND COMFORT

Ventilation Testing

VELOCICALC®

Air Velocity Meter

Model 9515

Operation and Service Manual

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CONTENTS

CHAPTER 1 UNPACKING AND PARTS IDENTIFICATION ............

CHAPTER 2 SETTING-UP................................................................. 3

Supplying Power to the Model 9515 VELOCICALC Air Velocity

Meter...............................................................................................

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

1

3

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Chapter 2

Setting-up

Supplying Power to the Model 9515 VELOCICALC Air 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.

NOTE: 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.

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 gently pushing
on the probe tip with the other hand. If you feel the probe antenna
binding, pull gently on the probe cable until the smallest antenna section
is retracted. Collapse the rest of the antenna by pressing the probe tip.

3

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Chapter 3

Operation

Keypad Functions

ON/OFF Key

ft/min / m/s Key

°C / °F Key

Changing Units

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.

Pressing this key changes the display to read air
velocity.

Pressing this key changes the display to read
temperature.

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
select the units.

ST and ENTER key to

5

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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.

Table 5-1: Troubleshooting the V

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

Velocity reading
fluctuates unstable
Instrument Error
message appears

Remove the probe from excessive temperature immediately:
excessive heat can damage the sensor. Operating temperature limits
can be found in Appendix A, Specifications.

Fluctuating flow Reposition probe in

Fault in instrument Factory service required

ELOCICALC Model 9515

contacts.

less-turbulent flow

on instrument.

WARNING!

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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

Resolution: 1 ft/min (0.01 m/s)

Temperature:

Range: 0 to 200°F (-18 to 93°C)
Accuracy
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)

Instrument Operating Conditions:

Altitude up to 4000 meters
Relative humidity up to 80% RH, non-condensing
Pollution degree 1 in accordance with IEC 664
Transient over voltage category II

1&2

: ±5% of reading or ±5 ft/min (±0.025 m/s),

whichever is greater

3

: ±0.5°F (±0.3°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.

11

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