THERMAL ANEMOMETRY
ELECTRONICS, SOFTWARE
AND ACCESSORIES
___________________
TSI and TSI logo are registered trademarks of TSI Incorporated.
SmartTune is a trademark of TSI Incorporated.
IFA 300 Constant Temperature Anemometry (CTA) System

SmartTune™ automatic bridge optimization
technology

High frequency response (with no tuning)

Windows
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Expansion up to 16 Channels
While the basic IFA 300 system can handle up to eight anemometer channels in one cabinet, a total
of sixteen anemometers can be monitored and controlled by ThermalPro software with the
addition of a second cabinet (and the appropriate digitizer). In case you need two systems, the two
IFA 300 cabinets can be used as two separate systems with the purchase of a second A/D converter.
Thermal Pro Data Acquisition and Analysis Software
The IFA 300 is designed for complete computer control through the ThermalPro software. System
operating functions, such as control of the overheat ratios and signal conditioner settings, are
handled via an RS232 interface, while the high speed analog data from the anemometer output is
managed with a high speed multichannel digitizer installed inside the computer. The ThermalPro
software is supplied with the IFA 300 system to allow all control and data acquisition, data analysis
and presentation of results.
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Complete IFA 300 CTA System
The complete IFA 300 system is made up of the following components:
 IFA 300 CTA
 Multichannel digitizer
 ThermalPro software
 Hot Wire/Hot film probe and probe support
The IFA 300 unit comes with a single CTA channel, when multiple channels are needed, additional
CTA can be purchased (up to 8 channels of CTA). If more than 8 channels are required for your
flow research, an IFA 300 auxiliary cabinet is also required. This allows a total of 16 channels to
be configured.
System Selection Guide
System with
1 channel
System with up to
8 channels
System with up to
16 channels
IFA 300
IFA 300 auxiliary
cabinet (183102)
SmartTune CTA
module
Multichannel digitizer
(ADCPCI-4)
Multichannel digitizer
(ADCPCI-8)
✔
✔
✔
ThermalPro software
Hot wire/Hot film
probes
Computer system with
Win 7 32-bit OS
✔
✔
✔
✔
✔
✔
✔
✔
✔
Component
✔
✔
✔
✔
✔
Optional items
Air velocity calibration
systems
Traverse system
Air velocity calibration
by TSI
Water flow calibration
by TSI
✔
✔
✔
✔
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✔
(qty of 2)
IFA 300 Specifications
Amplifier drift
Amplifier input noise
Frequency response
Resistance measurement
Operating resistance
Maximum probe current
Cable length
Output
Size
Number of channels
Input power
Temperature measurement
Signal conditioning
Offset
Gain
Low pass filters
High pass filters
Output (analog)
Accessories included
0.3 μV/°C
1.7 nV/-Hz and 1.5 pA/-Hz
>250 kHz (without tuning)
0.1% ±0.01 ohms
2 to 80 ohms
800 mA (1.6 A with high power setting)
5 m; RG-58 A/U (other lengths available on request)
Bridge voltage to 11.5 volts
17.8 cm x 48 cm x 41 cm (7 in. x 19 in. x 16 in.); standard
19-inch rack mount
Up to eight per cabinet; sixteen channels supported by standard
software
100/120/220/240 VAC, 50-60 Hz, no switching required
Thermocouple circuit built-in for type-T thermocouple
0 to 10 V in 10 mV steps, 0.15% accuracy
1 to 1000 (1.0 MHz maximum bandwidth), 0.15% accuracy
Linear phase, 12 Hz to 1 MHz; 13 settings; -60 dB/decade
0.1, 1, 10 Hz; 60 dB/decade
–5 to +5 V
One 5-meter probe cable per channel, one 2-meter output cable
per channel (plus 2 extra per system), one Model 1340
thermocouple, one Model 1341 thermocouple cable, one BNC
shorting cap (coaxial), one BNC “T” connector, power cable(s),
one 4-meter (12 ft) RS232 cable, one shorting probe for singlesensor probe supports and one for dual-sensor probe supports
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Air Velocity Calibrators
Three models of air velocity calibrators are offered. They are:
Model 1127
Manual velocity calibrator without pressure transducer
Model 1128A
B and C – Manual velocity calibrator with different pressure transducer
(0 to 100 mm Hg; 0 to 100 mmHg and 0-1000 mmHg respectively)
Model 1129
Automatic velocity calibrator with 0 to 100 mm Hg pressure transducer
The velocity calibrator can be used with one-, two-, or three–sensor probe and provides the probe
mounts for yaw/pitch calibration. The calibrator is also integrated with the IFA 300 and the
ThermalPro software so that the data acquisition and calibration can be perfumed with accuracy
and convenience.
When the Model 1129 automatic velocity calibrator is
used, the calibration becomes very easy. Just define a
velocity range in the ThermalPro software and attach a
probe, the calibrator monitors the velocity through the
output of a built-in pressure transducer, acquires sensor
data, adjusts the flow rate to a new velocity, and repeats
the process, until the entire velocity range is covered.
The data is automatically integrated into the software
calibration section. While the calibrator’s most obvious
benefit is automated control, it has several other
advanced design features. For one, its exclusive flow
nozzle design exhibits a flat velocity profile over a broad
dynamic range. For another, it sports a probe mounting
system that can handle any type probe and probe support with great positioning flexibility,
essential for yaw and pitch calibration of probes.
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Computer Controlled Traverse Systems
Three different computer-controlled traverses are offered, Models 1191. 1192 and 1193, each able
to precisely locate and move a probe. As part of an anemometer system, they enable automated
measurement or remote operation. Typically, they are controlled using ThermalPro software,
where a customer defined matrix identifies the measurement points. They also operate
independently using front panel controls and displays on the power supply.
All traverses are built to ensure stable operation over the full translation range. They feature 600
mm travel with 10μm resolution, both absolute and relative homing capability, and a universal
probe mount with tilt. The three models differ only in the number of axes of movement.
Specifications of the Traverse Systems
Resolution
Accuracy
Repeatability
Traversing speed
Backlash compensation
Limit switch settings
Stepper motor
Remote control
Front panel LED display
Front panel control
Power source
Probe mount
Axes
Traversing length
(mm)
Weight (including
mount
Dimensions (mm)
excluding mount
10 μm
±50 μm/ft
±20 μm
10 mm/s
Yes
Adjustable
200 steps/revolution
RS232
Position of each axis
Pushbutton; jog/slew from front panel
110 VAC ±10%, 60 Hz standard; 220 VAC ±10%, 50/60 Hz optional
Manual rotation and translation of probe
Model 1191
Model 1192
Model 1193
Horizontal
Horizontal/vertical
Three axis
600
600 by 600
600 by 600 by 600
29 kg
54 kg
104 kg
1070 x 100 x 140
1240 x 1100 x 320
1330 x 1100 x 1250
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Calibration Services
TSI provides calibration data, supplied on disk, for all probes it manufactures. When ordering,
indicate the velocity range in air (0 to 5 m/s, 0 to 50 m/s, or 0 to 100 m/s) or water (0 to 1 m/s or
0 to 5 m/s).
Start-up Anemometer Systems
Model 1750 Constant Temperature Anemometer Module
The Model 1750 Constant Temperature Anemometer (CTA) is
designed for startup multi-channel applications. Users typically
incorporate the 1750 in their existing data acquisition and control
system, and therefore it does not include any software, output signal
conditioner, or computer interface.
The following components are needed to be used with the
Model 1750 CTA module to make up the complete system:
 Model 1751 Power Supply
 Model 1304 Control Resistor
 Single sensor wire or film probe
 Model 1150-6 Probe adaptor, or equivalent
 Model CL-CAL1750AIR calibration (please specify your velocity range)
Each 1750 interfaces with a single-sensor anemometer probe. The 1750 system does not include
signal conditioning, hence any offset and gain applied to the output voltage needs to be within the
range of your analog to digital converter (typically -5 to +5V or 0 to 10V). Optimization of the
frequency response can be achieved by adjusting the Trim and Gain controls on the anemometer.
Specifications
Number of channels
Amplifier input noise
Frequency response
Maximum probe current
Maximum bridge voltage
Output voltage range
Analog output impedance
Sensor operating resistance
Cable length
Size (including mounting flange)
Input Voltage
Operating temperature
One
7 nV/√Hz
DC to 100 kHz(3.8 μm) diameter tungsten wire, 100 m/s
velocity
0.75 A @25 VDC Supply
22 VDC @25 VDC Supply
8 to 22 VDC @25 VDC Supply
50 Ω
From 4 Ω to 20 Ω
2m
11.4 cm x 10.7 cm x 2.8 cm
(4.5 in. x 4.2 in. x 1.1 in.)
12 to 25 VDC
0° to 50°C
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Model 1745 Constant Current Anemometer module
The Model 1745 Constant Current Anemometer (CCA) module is a
stand-alone anemometer designed to measure average as well as
instantaneous temperatures in the 0oC to 300oC range. The module
is to be used with wire or film sensor operating as cold probe to
allow the rapid measurements of temperature.
The output from the anemometer is analog voltage reading
directly dependent upon the actual temperature of the flow. Zero
adjust and gain features allow convenient scaling of the output
during calibration and measurement.
Specifications
Input power
Output range
Sensor current
Gain
Frequency response
+15 VDC ±10%, 250 m/A
-12 VDC to +12 VDC, BNC output or terminal strip
Up to 2 mA
Continuous from 50 to 1000
Up to 1 kHz
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TSI Incorporated – Visit our website www.tsi.com for more information.
P/N 5001546 Rev A. (10/25/2013)
©2013 TSI Incorporated
Printed in U.S.A.