Model 407117 - Version 2.1 - November 2005
3
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 (m
3
/min) and CFM (ft
3
/min);Temp: °C and °F
Data hold Freezes displayed reading
Sampling rate 1 second approx.
Sensors Air velocity/flow sensor: Low friction, ball-bearing vane;
Temp. sensor: Precision thermistor
MAX/MIN Memory Record and Recall 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 output
Operating Temperature Meter: 32 to 122°F (0 to 50°C); Sensor: 32 to 176°F (0 to 80°C)
Operating Humidity Max. 80% RH
Power Supply 9V battery (Heavy duty alkaline); optional AC adapter
Power Current Approx. DC 8.3 mA
Weight 1.6 lbs. (700 g) including battery & probe
Dimensions Main instrument: 7 x 2.9 x1.3" (178 x 74 x 33mm)
Telescoping Sensor: 0.5" diameter head;
23.6" (600mm) max antenna length with 39" (1m) cable
Air Velocity Measurements Range Resolution Accuracy %rdg
m/s (meters per sec) 0.80 – 12.00 m/s 0.01 m/s ± (2% + 0.2 m/s)
km/h (kilometers per hour) 2.8 – 43.2 km/h 0.1 km/h ± (2% + 0.8 km/h)
ft/min (feet per minute) 160 – 2358 ft/min 1 ft/min ± (2% + 40 ft/m)
mph (miles per hour) 1.8 – 26.8 mph 0.1 mph ± (2% + 0.4 mph)
knots (nautical miles per hour ) 1.6 to 23.3 knots 0.1 knots ± (2% + 0.4 knots)
Air Flow Measurements Range Resolution Area
CMM (cubic meters per minute) 0-999,900 m
3
/min 0.001 to 100 0 to 9,999m
2
CFM (cubic feet per minute) 0-999,900 ft
3
/min 0.001 to 100 0 to 9,999ft
2
Range Resolution Accuracy
Air Temperature
32 - 176
o
F (0 - 80
o
C) 0.1
o
F/C 1.5
o
F (0.8
o
C)
