407114 Datasheet, PDF (3/8 Pages) Extech Instruments Corporation. – CFM Thermo Anemometer Air Velocity, Air Flow, and Temperature

Specifications
General Specifications
Circuit
Custom LSI microprocessor circuit
Display
Dual function 0.5" (13 mm) 4-digit LCD
Measurement units
Air Velocity: m/s, km/h, ft/min, knots, mph;
Air Flow: CMM (m³/min); CFM (ft³/min); Temp: °C & °F
Data hold
Freezes displayed reading
Sampling rate
1 reading per second approx.
Sensors
Air velocity/flow sensor: Conventional angled vane arms
with low-friction ball bearing.
Temperature sensor: Precision thermistor
MAX/MIN Memory
Record and view Maximum and Minimum readings
Automatic Power off Auto shut off after 15 minutes to preserve battery life
Data Output
RS 232 PC serial interface with 16-bit data stream
Operating Temperature 32°F to 122°F (0°C to 50°C)
Operating Humidity
Max. 80% RH
Power Supply
9V battery
Power Current
Approx. 8.3 mA DC
Weight
0.84 lbs. (381g) including battery & probe
Dimensions
Main instrument: 7.1 x 2.8 x1.3" (180 x 72 x 32mm)
Sensor Head: 72mm Diameter
Range Specifications
Air Velocity
m/s (meters per sec)
km/h (kilometers/hour)
ft/min (feet per minute)
mph (miles per hour)
knots (nautical MPH)
Air Flow
CMM (cubic meters/min)
CFM (cubic ft/min)
Air Temperature
Range
Resolution
Accuracy
(% rdg)
0.40 - 25.00 m/s
0.01 m/s ^{± (2% + 0.2 m/s)}
1.4 - 90.0 km/h
0.1 km/h ^{± (2% + 0.8 km/hr)}
80 – 4921 ft/min
1 ft/min ^{± (2% + 40 ft/m)}
0.9 – 55.9 mph
0.1 mph ^{± (2% + 0.4 MPH)}
0.8 to 48.6 knots
0.1 knots ^{± (2% + 0.4 knots)}
Range
0-999,900 m³/min
0-999,900 ft³/min
Resolution
0.001 to
100
0.001 to
100
Area
0 to 9,999m²
0 to 9,999ft²
Range
Resolution
32 - 122 ^oF (0 - 50 ^oC) 0.1 ^oF/C
Accuracy
1.5 ^oF (0.8 ^oC)
3
Model 407114 Version 2.0 November 2005