Specifications - Extech Instruments 451126 User Manual

Specifications

Display Dual 4-digit (9999 count) Multi-function LCD
Data hold Locks latest reading on the LCD display
Sensor Structure Air velocity sensor: Conventional twisted vane arm with low friction
(sapphire) ball bearing. Temperature sensor: K-type thermocouple
built into vane. 1/4" mounting nut provided
Memory Recall Records Max/Min readings with push-key RECALL
Data Output RS-232 PC serial interface
Operating conditions Temperature: 32°F to 122°F (0°C to 50°C); Humidity: <80% RH;
(Meter)
Pressure: 500mB to 2 Bar
Operating conditions Temperature: 32°F to 140°F (0°C to 60°C); Humidity: <80% RH;
(Vane) Pressure: 500mB to 2 Bar
Storage temperature Temperature: -40°F to 140°F (-40°C to 60°C)
Power Supply 9V battery; Battery life: 50 hours typical
Power Consumption Approx. 3 mA DC
Weight 0.77 lbs. (350g)
Dimensions Meter: 3.46 x 6.61 x 1.03" (88 x 168 x 26.2mm);
Vane: 2.6 x 5.22 x 1.15" (66 x 132 x 29.2mm)
Accessories 9V battery and carrying case
Range Specifications
Measurement
Feet per Minute (ft/min)
Meters per Second (m/s)
Kilometers per Hour (km/hr)
Miles per Hour (mile/hr)
Knots
Units Range
o o
C 0.0 C to 45.0
o o
F 32.0 F to 113.0
(CMM: 0 to 45.00 m/s; CFM: 0 to 8800 ft/min)
3
CFM (ft /min) 0 to 999900
3
CMM (m /min) 0 to 999900
Air Velocity
Display
Calibrated Range Resolution
60.0 to 8800 0.1
0.30 to 45.00 0.01
1.00 to 140.0 0.01
0.70 to 100.0 0.01
0.60 - 88.0 0.01
Temperature
Converter Resolution
o o
C 0.2 C
o o
F 0.4 F
Air Flow and Area
Range Resolution
0.001 to 100
0.001 to 100
2
Accuracy
(%FS)
± (3% + 20 ft/min)
± (3% + 0.1 m/s)
± (3% + 0.4 km/hr)
± (3% + 0.2 mile/hr)
± (3% + 0.2 knots)
Accuracy
o
±1.0 C
o
±1.8 F
Area
0.001 to 9999
0.001 to 9999
Model 451126 V2.0 6/08