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The VelociCalc 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.
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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
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Features
|
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
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Specifications
VelociICalc 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 Multi-Functional 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 |
| |
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|
| 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 |
| 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 |
| 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
|
Model 995
|
and 982
|
and
966
|
Model 792
|
Model 794
|
Models 960 and 964
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Probe
Suitability Matrix
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|
9555
|
9555-A
|
9555-P
|
9555-X
|
| Probe
that measures velocity, temperature, and humidity |
includes
964 probe |
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
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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.
- Overpressure
range = 190 in. H2O (360 mmHg, 48 kPa).
Specifications
subject to change without notice.
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Return
to Brandt Instruments
For
more information Email 
Brandt
Instruments, Inc.
18568 Oak Grove Parkway
Prairieville, LA 70769
1-800-337-6291
Phone: 225-673-6776
Fax: 225-673-6725
Copyright © 2002-2010 Brandt Instruments,
Inc.
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