Specifications - Extech Instruments AN400 User Manual

Specifications

Circuit description
Display
Measurement units
Data hold
Sensor Structure
Memory Recall
Data Logger
Auto Power off
Sampling Time
Water Resistance
Operating Temperature
Operating Humidity
Power Supply
Power Consumption
Weight
Dimensions
Air Velocity Range Specifications
Measurement
ft/min (feet per minute)
m/s (meters per second)
km/h (kilometers per hour)
mph (miles per hour)
knots (nautical miles per hour) 1.4 to 68.0 knots
Temperature Range Specifications
Range
o o o o
32 F to 122 F (0 C to 50 C)
Copyright © 2006 Extech Instruments Corporation
All rights reserved including the right of reproduction in whole or in part in any form.
Custom LSI microprocessor design
Dual function 9999 count LCD display
m/s, km/h, ft/min, knots, mph, Temperature
Freezes reading on the display
Air velocity sensor: Cup vane arm with low-friction ball-
bearing design. Temperature sensor: Precision thermistor
Record and Recall Maximum (MAX) and Minimum (MIN)
readings
Manual store/recall of up to 100 data points
After 10 minutes
Approx. 1 second
IP65
32 °F to 122 °F (0 °C to 50 °C)
Max. 80% RH
4 x 1.5V AAA batteries
Approx. 6.8mA DC (typical battery life: approx. 150 hrs)
0.4 lbs. (181g)
Main instrument: 7.5 x 1.6 x1.3" (190 x 40 x 32mm)
Cup Vane: 5.3" (135mm) diameter
Range Resolution
144 – 6895 ft/min 1 ft/min
0.9- 35.0 m/s 0.1 m/s
2.5 - 126.0 km/h 0.1 km/h
1.6 - 78.2 mph 0.1 mph
0.1 knots
Resolution
o o
0.1 F (0.1 C)
6
o o
C/ F
Accuracy
(of full scale)
± (2% + 40 ft/min)
± (2% + 0.2 m/sec)
± (2% + 0.8 km/hr)
± (2% + 0.4 mph)
± (2% + 0.4 knots)
Accuracy
o o
± 1.5 F (0.8 C)
AN400 V3.0 12/06