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Extech Instruments 45158 User Manual

Extech Instruments 45158 User Manual

Mini hygro thermo-anemometer

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User's Manual
Model 45158
Mini Hygro Thermo-Anemometer
Introduction
Congratulations on your purchase of Extech's
Model 45158 Anemometer. The dual display
indicates Air Velocity and Humidity, Dew Point,
Ambient Temperature, or Temperature with
wind-chill factor. With careful use, this meter
will provide years of reliable service.

Specifications

Range Specifications
Measurement
MPH (Miles per hour)
km/hr (kilometers per hour)
Knots (nautical miles per hour)
m/sec (meters per second)
ft/min (feet per minute)
Beaufort force
Temperature
Relative Humidity
Dew Point
General Specifications
Display
Sensors
Average Mode
Max and Data Hold Displays
Sample time
Water-resistant
Operating conditions
Power supply
Dimensions / Weight
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
Visit us at www.TestEquipmentDepot.com
Back to the 45158 Product Info Page
Range
1.1 to 62.5 MPH
1.8 to 100.6 km/h
1.0 to 54.3 knots
0.50 to 28.00 m/s
100 to 5500 ft/min
1 to 17 BF
0 to 122
F (-18 to 50
C) 0.1
o
o
10 to 95%
32 to 122
F (0 to 50
C)
o
o
Dual LCD with low battery and multifunction indicators
Sapphire bearing, non-corrosive vane for air velocity; Precision
thermistor for temperature measurements
Choice of 5 or 10 reading averaging (2 second factory default)
Max recalls the highest reading; Data Hold freezes the display
1 reading per second for air velocity and temperature
(1 reading per 15 seconds for humidity with 2 second updates)
To 3' (1m)
5 to 122
F (-15 to 50
C) / < 80% RH
o
o
Lithium battery (CR-2032 or equivalent) / 400 hour battery life
Instrument: 5.25 x 2.75 x 0.75" (133 x 70 x 19mm)
Vane: 1" ( 24mm ) diameter / 3 oz. ( 95 g )
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Resolution
Accuracy (% of reading)
0.2 MPH
± (3% + 0.4 mph)
0.7 km/h
± (3% + 1.4 km/hr)
0.3 knots
± (3% + 0.6 knots)
0.01 m/s
± (3% + 0.2 m/s)
20ft/min
± (3% + 40 ft/min)
1 BF
± 1
F/C
± 1.8
o
1%
± 5% RH
0.1
F/C
± 3.6
o
F (± 1
C)
o
o
F (2
C)
o
o

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Summary of Contents for Extech Instruments 45158

  • Page 1: Specifications

    99 Washington Street Melrose, MA 02176 Phone 781-665-1400 User's Manual Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com Back to the 45158 Product Info Page Model 45158 Mini Hygro Thermo-Anemometer Introduction Congratulations on your purchase of Extech’s Model 45158 Anemometer. The dual display...
  • Page 2 Meter Description Vane impeller Impeller set screw (on rear of meter) Relative Humidity sensor Temperature sensor LCD display ON/OFF, HOLD key UNITS, MODE key Battery compartment (on rear) Tripod mounting hole Lanyard (neckstrap) Operation Turning the meter ON and OFF •...
  • Page 3 Maintenance Battery Replacement The 45158 has a low battery indicator (battery symbol). Important: Turn the meter off before opening the battery compartment. Using a coin, turn the battery compartment cover CLOCKWISE to remove it. Once opened, observe the position of the battery, placing the new one in the same position.
  • Page 4 Unit of Measure Conversion Tables Units Conversion Table ft/min Knots km/h 1 m/s = 196.87 1.944 2.24 1 ft/min = 0.00508 0.00987 0.01829 0.01138 1 knot = 0.5144 101.27 1.8519 1.1523 1 km/h = 0.2778 54.69 0.54 0.6222 1 MPH = 0.4464 87.89 0.8679...