Ventilation Test Instruments
ENERGY AND COMFORT
VELOCICALC
®
Multi-Function Ventilation Meter
Series 9555
The Series 9555 are portable, hand held, Multi-Function
Ventilation Test Instruments. These instruments are available with
or without a differential pressure sensor and are designed to work
with a wide range of plug-in probes. The probes allow users to
make various measurements by simply plugging in a different
probe that has the features and functions best suited for a
particular application. They are designed to measure air velocity,
temperature, humidity, CO and CO2. Calculations include air flow,
heat flow, turbulence, wet bulb and dew point temperature.
The probes can be ordered at any time and include a data
sheet with certificate of traceability. When its time for servicing,
only the probe needs to be returned since all the calibration
data is stored within the probe.
Applications
HVAC commissioning and troubleshooting
Clean room certification
Testing and balancing
Ventilation evaluations
Thermal comfort studies
IAQ investigations
Process air flow testing
Features and Benefits
Best in class accuracy, especially in low flows
Displays up to 5 measurements simultaneously
Optional “smart” plug-in probes, including CO2and rotating
vane probes
Large graphic display
Manual or continuous data logging
TRAKPROTMand LogDat2TMsoftware included
Name test IDs meaningful to you
Bluetooth®printer capability
Fast calibration and repair service—just send in the probe
Model 9555
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Optional Probes for VELOCICALC 9555 Series
Multi-Functional Anemometers
Model Probe Description
960 Air Velocity and Temperature, straight probe
962 Air Velocity and Temperature, articulating probe
964 Air Velocity, Temperature, and Humidity, straight probe
966 Air Velocity, Temperature, and Humidity, articulating probe
995 4 in. (100 mm) Rotating Vane probe
496 1.5 in. (35mm) Rotating Vane probe
792 Surface Temperature probe
794 Air Temperature probe
980 Indoor Air Quality probe
982 Indoor Air Quality probe, with CO
Specifications
VELOCICALC
Models 9555, 9555-A, 9555-P, 9555-X and Optional Probes
Velocity (Pitot Tube for Meter Models 9555, 9555-A, 9555-P)
Range
1
250 to 15,500 ft/min (1.27 to 78.7 m/s)
Accuracy
2
±1.5% at 2,000 ft/min (10.16 m/s)
Resolution 1 ft/min (0.01 m/s)
Duct Size
Dimensions 1 to 250 inches in increments of 0.1 in.
(1 to 635 cm in increments of 0.1 cm)
Volumetric Flow Rate
Range Actual range is a function of velocity, pressure, duct size,
and K factor
Static/Differential Pressure (Meter Models 9555, 9555-A, 9555-P)
Range
3
-15 to +15 in. H2O (-28.0 to +28.0 mm Hg,
-3735 to +3735 Pa)
Accuracy ±1% of reading ±0.005 in. H
2
O (±0.01 mm Hg, ±1 Pa)
Resolution 0.001 in. H
2
O (0.1 Pa, 0.01 mm Hg)
Barometric Pressure
Range 20.36 to 36.648 in. Hg (517.15 to 930.87 mm Hg)
Accuracy ±2% of reading
Instrument Temperature Range
Operating (Electronics)
40 to 113°F (5 to 45°C)
Storage -4 to 140°F (-20 to 60°C)
Data Storage Capabilities
Range 26,500+ samples and 100 test IDs
Logging Interval
1 second to 1 hour
Time Constant
User selectable
External Meter Dimensions
3.8 in. x 8.3 in. x 2.1 in. (9.7 cm x 21.1 cm x 5.3 cm)
Meter Weight with Batteries
0.8 lbs. (0.36 kg)
Power Requirements
Four AA-size batteries or AC adapter
9555 9555-A 9555-P 9555-X
Probe that measures velocity,
temperature, and humidity
includes
964 probe
includes
966 probe
optional optional
Pressure measurement
•••
Calculates flow, wet bulb, dew
point, standard/actual
••
optional optional
Optional velocity and
temperature probe
••••
Optional rotating vane probe
••••
Optional IAQ probes (CO2,
temperature, humidity, CO)
••••
Data Logging (manual, auto save
continuous)
••••
Data logging software
••••
Optional Bluetooth printer
••••
Certificate of Calibration
••••
1
Pressure velocity measurements are not recommended below 1000 ft/min (5 m/s) and are
best suited to velocities over 2,000 ft/min (10.00 m/s). Range can vary depending on
barometric pressure.
2
Accuracy is a function of converting pressure to velocity. Conversion accuracy improves when
actual pressure values increase.
3
Overpressure range = 190 in. H2O (360 mmHg, 48 kPa).
Thermoanemometer
Probe Models
Range Accuracy Resolution Probe Dimensions
962
0 to 9,999 ft/min (0 to 50 m/s)
0 to 200°F (-18 to 93°C)
±3% of reading or ±3 ft/min
(±0.015 m/s), whichever is greater
4&5
±0.5°F (±0.3°C)
6
1 ft/min (0.01 m/s)
0.1°F (0.1°C)
Length 40 in. (101.6 cm)
Tip dia. 0.28 in. (7.0 mm)
Base dia. 0.51 in. (13.0 mm)
Articulating Section Length 6 in. (15.2 cm)
Articulating Knuckle dia. 0.38 in. (9.5 mm)
966
0 to 9,999 ft/min (0 to 50 m/s)
14 to 140°F (-10 to 60°C)
0 to 95% RH
±3% of reading or ±3 ft/min
(±0.015 m/s), whichever is greater
4&5
±0.5°F (±0.3°C)
6
±3% RH
7
1 ft/min (0.01 m/s)
0.1°F (0.1°C)
0.1% RH
Length 40 in. (101.6 cm)
Tip dia. 0.28 in. (7.0 mm)
Base dia. 0.51 in. (13.0 mm)
Articulating Section Length 6 in. (15.2 cm)
Articulating Knuckle dia. 0.38 in. (9.5 mm)
960
0 to 9,999 ft/min (0 to 50 m/s)
0 to 200°F (-18 to 93°C)
±3% of reading or ±3 ft/min
(±0.015 m/s), whichever is greater
4&5
±0.5°F (±0.3°C)
6
1 ft/min (0.01 m/s)
0.1°F (0.1°C)
Length 40 in. (101.6 cm)
Tip dia. 0.28 in. (7.0 mm)
Base dia. 0.51 in. (13.0 mm)
964
0 to 9,999 ft/min (0 to 50 m/s)
14 to 140°F (-10 to 60°C)
0 to 95% RH
±3% of reading or ±3 ft/min
(±0.015 m/s), whichever is greater
4&5
±0.5°F (±0.3°C)
6
±3% RH
7
1 ft/min (0.01 m/s)
0.1°F (0.1°C)
0.1% RH
Length 40 in. (101.6 cm)
Tip dia. 0.28 in. (7.0 mm)
Base dia. 0.51 in. (13.0 mm)
Rotating Vane Probe Models Range Accuracy Resolution Probe Dimensions
995
50 to 6,000 ft/min (0.25 to 30 m/s)
32 to 140°F (0 to 60°C)
±1% of reading ±4 ft/min (±0.02 m/s)
±2.0°F (±1.0°C)
1 ft/min (0.01 m/s)
0.1°F (0.1°C)
Diameter 4 in. (100mm)
496
100 to 3,000 ft/min (0.50 to 15.00 m/s)
32 to 140°F (0 to 60°C)
±3% of reading ±4 ft/min (±0.02 m/s)
±2.0°F (±1.0°C)
1 ft/min (0.01 m/s)
0.1°F (0.1°C)
Diameter 1.5 in. (35mm)
IAQ Probe Models Range Accuracy Resolution Probe Dimensions
980
0 to 5000 ppm CO
2
0 to 95% RH
14 to 140°F (-10 to 60°C)
±3% of reading or ±50 ppm,
whichever is greater
9
CO
2
±3% RH
7
±0.5°F (±0.3°C)
6
1 ppm CO
2
0.1% RH
0.1°F (0.1°C)
Length 7.0 in. (17.8 cm)
Diameter 0.75 in. (1.9 cm)
982
0 to 500 ppm CO
0 to 5000 ppm CO
2
0 to 95% RH
14 to 140°F (-10 to 60°C)
±3% of reading or ±3 ppm,
whichever is greater8CO
±3% of reading or ±50 ppm,
whichever is greater9CO
2
±3% RH
7
±0.5°F (±0.3°C)
6
0.1 ppm CO
1 ppm CO
2
0.1% RH
0.1°F (0.1°C)
Length 7.0 in. (17.8 cm)
Diameter 0.75 in. (1.9 cm)
Thermocuple Probe Models Range Accuracy Resolution Probe Dimensions
792
-40 to 1200°F (-40 to 650°C)
±0.1% of reading +2°F
(±0.056% of reading +1.1°C)
0.1°F (0.1°C) Length 6 in. (15.0 cm) Diameter
794
-40 to 1200°F (-40 to 650°C)
±0.1% of reading +2°F
(±0.056% of reading +1.1°C)
0.1°F (0.1°C) Length 6 in. (15.0 cm) Diameter
4
Temperature compensated over an air temperature range of 40 to 150°F (5 to 65°C).
5
The accuracy statement begins at 30 ft/min through 9,999 ft/min (0.15 m/s through 50 m/s).
6
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.
7
Accuracy with probe at 77°F (25°C). Add uncertainty of 0.1% RH/°F (0.2% RH/°C) for change
in probe temperature. Includes 1% hysteresis.
8
At 77°F (25°C). Add uncertainty of ±0.2%/°F (0.36%/°C) for change in temperature.
9
At calibration temperature. Add uncertainty of ±0.28%/°F (0.5%/°C) for change in temperature.
Specifications are subject to change without notice.
Probe Specifications
Models 960, 962, 964, 966, 995, 496, 980, 982, 792 and 794
Ventilation Test Instruments
ENERGY AND COMFORT
TSI Incorporated
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P/N 2980567 Rev E Copyright © 2008 by TSI Incorporated Printed in U.S.A.
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