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SMG/interlink®
Serving our customers since 1994
Instruments for Environmental, Health and Safety Professionals,
HVAC Engineers and Technicians, Manufacturing Engineers,
Quality Control and Laboratory Professionals

9555 / 9555A VELOCICALC™
Multi-Function Ventilation Meters
(Replaces Models 8385, 8386)

The TSI 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.

TSI 9555 Velocicalc multi function meter

Features and Benefits

  • Best in class accuracy, especially in low flows

  • Displays up to 5 measurements simultaneously

  • Optional "smart" plug-in probes, including CO2 and rotating vane probes

  • Large graphic display

  • Manual or continuous data logging

  • TRAKPRO™ downloading software included

  • Name test IDs meaningful to you

  • Bluetooth® printer capability

  • Fast calibration and repair service - just send in the probe

 
  9555 9555-A 9555-P 9555-X
Probe that measures velocity, temperature and humidity straight articulated optional optional
Pressure measurement x x x  
Calculates, flow, wet bulb, dew point, standard, actual x x optional optional
Optional temperature and velocity probe x x x x
Optional rotating vane velocity probe x x x x
Optional IAQ probes (CO, temperature, humidity, CO2) x x x x
Data logging (manual, auto save, continuous x x x x
Data logging software x x x x
Optional Blue Tooth printer x x x x

Specifications 
VELOCICALC Models 9555, 9555-A, 9555-P, 9555-X and Optional Probes

Velocity (TA Probe Models 960, 962, 964, 966)

Range 0 to 9,999 ft/min (0 to 50 m/s)
Accuracy1,2 ±3% of reading or ±3 ft/min (±0.015 m/s), whichever is greater
Resolution 1 ft/min (0.01 m/s)

Velocity (Pitot Tube for Meter Models 9555, 9555-A, 9555-P)

Range3 250 to 15,500 ft/min (1.27 to 78.7 m/s)
Accuracy4 ±1.5% at 2,000 ft/min (10.16 m/s)
Resolution 1 ft/min (0.01 m/s)

Velocity (Rotating Vane Probe Model 995)

Range 50 to 6,000 ft/min (0.25 to 30 m/s)
Accuracy ±1% of reading ±4 ft/min (±0.02 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

Temperature (TA Probe Models 964 and 966, IAQ Probe Models 980 and 982)

Range 14 to 140°F (-10 to 60°C)
Accuracy5 ±0.5°F (±0.3°C)
Resolution 0.1°F (0.1°C)

Temperature (TA Probe Models 960 and 962)

Range 0 to 200°F (-18 to 93°C)
Accuracy5 ±0.5°F (±0.3°C)
Resolution 0.1°F (0.1°C)

Temperature (Rotating Vane Probe Model 995)

Range 32 to 140°F (0 to 60°C)
Accuracy ±2.0°F (±1.0°C)
Resolution 0.1°F (0.1°C)

Temperature (K-Alloy Thermocouple Surface Probe Model 792)

Range -40 to 1200°F (-40 to 650°C)
Accuracy ±0.1% of reading +2°F (±0.056% of reading +1.1°C)
Resolution 0.1°F (0.1°C)

Temperature (K-Alloy Thermocouple Air Probe Model 794)

Range -40 to 1600°F (-40 to 870°C)
Accuracy ±0.1% of reading +2°F
(±0.056% of reading +1.1°C)
Resolution 0.1°F (0.1°C)

Relative Humidity (TA Probe Models 964 and 966, IAQ Probe Models 980 and 982)

Range 0 to 95% RH
Accuracy6 ±3% RH
Resolution 0.1% RH
 

Optional Probes for VELOCICALC 9555 Series Multifunctional Anemometers

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
792 Surface Temperature probe
794 Air Temperature probe
980 Indoor Air Quality probe
982 Indoor Air Quality probe, with CO
   

Carbon Monoxide (IAQ Probe with CO Model 982)

Range 0 to 500 ppm
Accuracy7 ±3% of reading or ±3 ppm, whichever is greater
Resolution 0.1 ppm

Carbon Dioxide (IAQ Probe Models 980 and 982)

Range 0 to 5000 ppm
Accuracy8 ±3% of reading or ±50 ppm, whichever is greater
Resolution 1 ppm

Static/Differential Pressure (Meter Models 9555, 9555-A, 9555-P)

Range9 -15 to +15 in. H2O (-28.0 to +28.0 mm Hg,-3735 to +3735 Pa)
Accuracy ±1% of reading ±0.005 in. H2O (±0.01 mm Hg, ±1 Pa)
Resolution 0.001 in. H2O (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

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

Meter Dimensions

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)

Meter Probe Dimensions

Probe length 40 in. (101.6 cm)
Probe Diameter of Tip 0.28 in. (7.0 mm)
Probe Diameter of Base 0.51 in. (13.0 mm)

Articulating Probe Dimensions

Articulating Section Length 6 in. (15.2 cm)
Diameter of Articulating Knuckle 0.38 in. (9.5 mm
 
Power Requirements Four AA-size batteries or AC adapter

Optional Probes
TSi 9555 VelociCalc multi function meter probes

Model 995
Models 980
and 982
Models 962
 and 966
Model 792 Model 794 Models 960 and 964

Probe Suitability Matrix

  9555 9555-A 9555-P 9555-X
Probe that measures velocity, temperature, and humidity includes
964 prbe 		includes
966 probe 		optional optional
Pressure measurement x x x  
Calculates flow, wet bulb, dew point, standard/actual x x optional optional
Optional velocity and temperature probe x x x x
Optional rotating vane probe x x x x
Optional IAQ probes (CO2, temperature, humidity, CO) x x x x
Data Logging (manual, auto save continuous) x x x x
Data logging software x x x x
Optional Bluetooth printer x x x x
Optional Bluetooth printer x x x x


Footnotes

  • Temperature compensated over an air temperature range of 40 to 150°F (5 to 65°C).
  • The accuracy statement begins at 30 ft/min through 9,999 ft/min (0.15 m/s through 50 m/s).
  • 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.
  • Accuracy is a function of converting pressure to velocity. Conversion accuracy improves when actual pressure values increase.
  • 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.
  • 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.
  • At 77°F (25°C). Add uncertainty of ±0.2%/°F (0.36%/°C) for change in temperature.
  • At calibration temperature. Add uncertainty of ±0.28%/°F (0.5%/°C) for change in temperature.

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    Fx: 972-985-3252
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    Plano, Texas 75023

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