Icel Manaus AN-3040 User manual

MANUAL DE INSTRUÇÕES
DO ANEMÔMETRO DIGITAL
MODELO AN-3040
Leia atentamente as instruções
contidas neste manual antes de
iniciar o uso do anemômetro

AN-3040 to measure air temperature in
AN-3040 AN-3040 Anemometer.The Anemometer Congratulations on your purchase of the
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Introduction
measures air velocity in five units of measure: feet per minute (ft/min), meters per
second (m/sec), miles per hour (MPH), kilometers per hour (km/hr), & nautical miles per
hour (knots). An internal Type K sensor allows
Celsius or Fahrenheit units. The 16” (406mm) flexible gooseneck provides easy access
for air velocity and temperature measurement in difficult to reach locations. This meter is
shipped fully tested and calibrated and with proper use will provide years of reliable
service.
Meter Description
1. LCD display
2. Vane sensor
3. Hold/Backlight key
4. Units/°F/°C key
5. Max/Min key
6. On/Off key
Note: Battery compartment is on rear of unit
Display
1. MAX MIN Record mode
2. Temperature display
3. Temperature display
4. Velocity units
5. Hold mode
6. MAX or MIN mode
7. Velocity display
8. Low battery indicator
CFM
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shuts off after 15 minutes to conserve battey energy.
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Operation
Meter Power
1. Press the POWER button to turn the meter on. If the display does not switch on, check
that a fresh 9V battery is installed.
2. Press the POWER button to turn the meter off.
3. The meter is equipped with an AUTO POWER OFF feature. The meter automatically
Measuring Air Velocity and Temperature
1. Place the sensor in the air stream under test.
2. Read the Air Velocity and Temperature measurements directly on the LCD.
3. To calculate Air Volume in CFM (cubic feet per minute) or CMM (cubic meters per
minute) refer to the ‘Useful Equations and Conversions’ section.
Selecting the Temperature unit of measure (oC/oF)
Press and hold the UNITS key for 3 seconds to select the temperature unit of measure.
The meter will beep twice and the display will indicate the currently selected unit of
measure.
Selecting the Air Velocity unit of measure
Press the UNITS key to change the unit of measure for Air Velocity measurements. The
display will reflect the current selection. A list of measurement units is printed in the
specifications later in this manual.
Data Hold/Backlight
To freeze the LCD display, momentarily press the HOLD key. The 'HOLD' icon will appear
on the LCD and the reading will remain unchanged. Momentarily press the HOLD button
again to return to normal operation (the 'HOLD' icon will switch off).
Press and hold the key for 3 seconds to turn the backlight on/off.
Record and Recall MAX / Min Function
1. To begin capturing the Maximum (MAX) and Minimum (MIN) air velocity and
temperature readings, press the MAX/MIN key and the ‘RECORD’ icon will appear in
the display.
2. Now, use the MAX/MIN key to toggle the view from MIN to MAX to RECORD. The
‘MAX’ or ‘MIN’ will appear along with the recalled reading for convenience. In RECORD
mode, the meter will display the current reading but will continue to capture MAX and
MIN readings.
3. To return to normal operation, press and hold the MAX/MIN key for 3 seconds to clear
and stop MAX/MIN recording. The meter will beep twice and the ‘MAX’/‘MIN’ and
‘RECORD’ icons will switch off.

Max. 80% RH
32 °F to 122 °F (0 °C to 50 °C)
Dual function 8888 count LCD display
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Maintenance
Battery Replacement
When the battery power falls low, the low battery icon will appear on the LCD. Replace
the 9V battery by removing the Phillips screw on the battery compartment door and
accessing the battery compartment. Ensure that the compartment cover is securely
fastened when finished.
Cleaning and Storage
Wipe the meter and vane with a damp cloth as needed. Do not apply abrasive, solvents, or
other cleaners to the surface of the meter or vane. Store with the battery removed and
avoid extreme temperature and humidity.
Specifications
Circuit description Custom LSI microprocessor design
Display
Measurement units m/s, km/h, ft/min, knots , mph, Temperature: oC/oF
Data hold Freezes reading on the display
Sensor Structure Air velocity sensor: Conventional twisted vane arm with low-
friction ball-bearing
Memory Recall Record and Recall Maximum/Minimum (MAX/MIN) readings
Auto Power off After 15 minutes with disable feature
Operating Temperature
Operating Humidity
Power Supply 9V battery
Power Consumption Approx. 8.3mA DC
Air Velocity Range Specifications
Measurement Range Resolution Accuracy
(% of reading)
ft/min (feet per minute) 80 - 5900 ft/min 1 ft/min ± (3% + 40 ft/min)
m/s (meters per second) 0.40 - 30.00 m/s 0.01 m/s ± (3% + 0.20 m/sec)
km/h (kilometers per hour) 1.4 - 108.0 km/h 0.1 km/h ± (3% + 0.8 km/hr)
mph (miles per hour) 0.9 - 67.0 mph 0.1 mph ± (3% + 0.4 mph)
knots (nautical miles per hour) 0.8 - 58.0 knots 0.1 knots ± (3% + 0.4 knots)
Temperature Range Specifications
Range Resolution Accuracy
32oF to 122oF (0oC to 50oC) 0.1oF (0.1oC) ± 4.0oF (2oC)
CFM

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Useful Equations and Conversions
Volume Measurements
To determine CFM (cubic feet per minute) or CM M (cubic meters per minute) in a duct, the
area of the duct must first be measured (use the equations below). Then multiply an air
velocity measurement by the area measurement to obtain CFM or CMM.
Area equation for rectangular or square ducts
Area equation for circular ducts
Cubic equations
NOTE: Measurements made in inches
must be converted to feet or meters before using the above formulae.
Unit of Measure Conversion Table
m/s ft/min knots km/h MPH
1 m/s 1 196.87 1.944 3.6 2.24
1 ft/min 0.00508 1 0.00987 0.01829 0.01138
1 knot 0.5144 101.27 1 1.8519 1.1523
1 km/h 0.2778 54.69 0.54 1 0.6222
1 MPH 0.4464 87.89 0.8679 1.6071 1
Width (W)
Height (H)
Area (A) = Width (W) x Height (H)
CFM (ft
3/min) = Air Velocity (ft/min) x Area (ft 2)
Radius Area (A) = x r2
Where = 3.14 and r2 = radius x radius

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