Specifications
ycaruccAnoituloseRegnaRyticoleVriA
m/s (meters per sec) 0.40 - 30.00 m/s 0.01 m/s ± (3% + 0.20 m/s)
km/h (kilometers/hour) 1.4 - 108.0 km/h 0.1 km/h ± (3% + 0.8 km/hr)
ft/min (feet per minute) 80 – 5900 ft/min 1 ft/min ± (3% + 40 ft/m)
mph (miles per hour) 0.9 – 67.0 mph 0.1 mph ± (3% + 0.4 MPH)
knots (nautical MPH) 0.8 to 58.0 knots 0.1 knots ± (3% + 0.4 knots)
Air Flow Range Resolution Area
CMM (cubic meters/min) 0-9999 m
3
/min 1 0 to 9.999m
2
CFM (cubic ft/min) 0-9999 ft
3
/min 1 0 to 9.999ft
2
Air Temperature Range Resolution Accuracy
14 - 140
o
F(-10-60
o
C) 0.1
o
F/C 4.0
o
F(2.0
o
C)
Circuit Custom LSI microprocessor circuit
Display Dual function 0.5" (13 mm) 4-digit LCD
Sampling rate 1 reading per second approx.
Sensors Air velocity/flow sensor: Conventional
angled vane arms with low-friction ball
bearing Temperature sensor: NTC-type
precision thermistor
Automatic Power off Auto shut off after 20 minutes to preserve
battery life
Operating Temperature 32°F to 122°F (0°C to 50°C)
Storage Temperature 14 to 140
o
F(-10to60
o
C)
Operating Humidity <80% RH
Storage Humidity <80% RH
Oper
ating Altitude 2000 meters (7000ft) maximum
Battery One 9 volt (NEDA 1604) battery
Battery life 80 hours approx. (if the Backlight is used
continuously, battery life will be reduced
significantly)
Battery Current 8.3 mA DC approx.
Weight 1.6 lbs. (725g) including battery & probe
Dimensions Main instrument: 7.0 x 2.9 x1.2" (178 x 74 x 33mm)
Sensor Head: 2.75” (70mm) Diameter
Useful Equations and Conversions
Area equation for rectangular or square ducts
Area equation for circular ducts
Cubicequations
NOTE: Measurements made in inches
must be converted to feet or meters before using the above formulae.
Unit of Measure Conversion Table
m/s ft/min knots km/h MPH
1m/s 1 196.87 1.944 3.6 2.24
1ft/min 0.00508 1 0.00987 0.01829 0.01138
1knot 0.5144 101.27 1 1.8519 1.1523
1km/h 0.2778 54.69 0.54 1 0.6222
1MPH 0.4464 87.89 0.8679 1.6071 1
Width (W)
Height (H)
Area (A) = Width (W) x Height (H)
CFM (ft
3
/min) = Air Velocity (ft/min) x Area (ft
2
)
CMM (m
3
/min) = Air V elocity (m/sec) x Area (m
2
)x60
Radius
Area (A) = x r
2
Where = 3.14 and r
2
=radiusx
radius
6
6
9 10
(1 pages)
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