Dawson DAM100B User manual

DAM100B
Digital Anemometer
User's Manual
DAM100B
Digital Anemometer

Out of the Box........................................1
Accessories.... ......................................1
Certification:.....................................3
Table of Contents
INTRODUCTION........................................2
Overview...............................................2
Important Safety Information.................4
USING THE METER...................................4
Figures and Components.......................4
Front Panel.............................................5
Back Panel...........................................6
Buttons..................................................7
Symbols .................................................8
Wind Speed and Air Velocity.......................9
Air Volume Area Setting..................................9
Air Volume Measurement............................9
Air Volume Unit Selection.................................9
Maximum/Minimum.................................10
Temperature Unit Selection............................10
Temperature Mode Selection..........................11
General Specifications...............................11
Technical Specifications.............................13
MAINTENANCE AND REPAIR....................15
Repair........................................................15
Replace Batteries.......................................16
CONTACT DAWSON.....................................16
FEATURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6
Table of Contents
LIMITED WARRANTY AND
LIMITATION OF LIABILITY..................1
MEASUREMENT.......................................9
SPECIFICATIONS..................................11

The Dawson DAM100B is a digital anemometer capable of
measuring air speed and volume, ambient temperature and
humidity, as well as dew point and wet bulb temperature. The
compact design allows the user to use the meter with one hand
or in a fixed position, and the large backlight LCD provides
easy to read results.
To ensure the anemometer will perform properly and to avoid
false readings from damage or misuse, please follow these
safety guidelines carefully.
meter
meter.
meter
meter complies to EMC
Dawson Tools Co.

after shutdown. If the meter is not going to be used for a
long period of time, the battery should be removed to avoid
any damage to the meter.
Wind speed (m/s, km/h, mil/h, ft/m, ft/s, knots), Air volume
(CMS, CMM, CFM). When in area mode (m
2
/ft
2
), press to
increase the flashing value. In wind speed/air volume,
hold to switch between temperature units (F°/C°).
(6) “Max/Min” - Displays maximum/minimum values recorded.
In area mode, press to move to the next value.
volume modes, hold to switch between temperature
modes (ambient temp/dew point temp/wet bulb temp).
If dirt appears on the fan blades, blow it with clean air
or scrub gently with a damp cloth and mild detergent.
Do not use abrasive chemicals or solvents on the meter.
meter
meter
The meter should only be used within the specified range
of ambient temperature and humidity.
The meter’s ability to acurately sense temperature and
humidity will decrease slowly over time. Please calibrate
the meter periodically for the best performance.
purposes (ex. calibration)
battery
exposing
meter
meter.
exposing the meter
meter.

9
11
10
(9) Connection for stand/tripod (not included)
(10) Battery cover screw
(11) Battery cover

Maximum reading
Minimum reading
Auto Power Off
may
less
button
button

Air Volume Area Setting
To measure air volume, first determine the area of the
opening of the items to be measured. In order to get
accurate air flow readings, this must be done first.
1. Press “FUNC” to enter “AREA” mode.
2. Use the “MAX/MIN” and “UNIT” keys to adjust the area
value and units (m
value and units (m
2
/ft
2
). Press “MAX/MIN” again after
adjusting the units and the meter will beep twice, confriming
the area adjustment is saved.
Air Volume Measurement
Place the meter in the test environment. Press “FUNC” twice
to switch to air volume measurement; “FLOW” will appear at
the top of the display. The fan surface should be placed
perpendicular to the wind direction.
Note:
• If the fan• If the fan’s surface is not perpendicular to the wind direction,
the meter will not accurately acquire the volume of air
movement.
• When using the meter to measure air volume, press “UNIT”
to select the desired measurement unit (CMS, CMM, CFM).
Maximum/Minimum Display
• To show the maximum reading, press “MAX/MIN” until
“
“MAX” is displayed.
• To show the minimum reading, press “MAX/MIN” until “MIN”
is displayed.
• To show the current readings, press “MAX/MIN” until neither
“MAX” or “MIN” is shown.
Temperature Unit Selection
Hold “UNIT” to switch between Fahrenheit and Celsius
(°F/°C).
(°F/°C).
• If the fan’s surface is not perpendicular to the wind direction,
the meter will not accurately acquire the speed of the wind.
• When using the meter to measure air velocity, press “UNIT”
to select the desired measurement unit (m/s, km/h, mil/h,
ft/m, ft/s, knots).
meter

• Max operating altitude: ~7000ft (2000m)
• Calculation principle: speed measured by RPM of fan
• Display: 9999 count LCD
• Sample rate: ~0.4s (2 to 3 times per second)
• Low Battery Indicator: “ ” symbol appears on display
• Battery: 1x 9V 6F22 battery
•
• Ambient sensor operation environment:
Relative humidity: 0~85% RH, no moisture condensation
Ambient temperature: 32°F~104°F (0°C~40°C), no moisture
condensation
• Fan operation environment:
Relative humidity: 0~95% RH, no moisture condensation
Temperature: -4°F~176°F (-20°C~80°C), no moisture
condensation
condensation
• Storage environment:
Relative humidity: 0~80% RH, no moisture condensation
Temperature: 14°F~122°F (-10°C~50°C), no moisture
condensation
• Dimensions (LxWxH): 6.5”x3.3”x1.5” (165x85x38mm)
• Weight: 0.4lbs (200g)
Temperature Mode Selection
Hold “HOLD/MODE” to switch temperature modes (default -
ambient temperature, DP - dew point temperature, and
WB - wet bulb temperature).
Note:
Temperature mode selection is disabled when display is in
MAX/MIN mode.
MAX/MIN mode.
Auto Power Off
When not in use, the meter will automatically turn off after
30 minutes of inactivity. To disable auto off, hold “FUNC”
until the “ ” symbol disappears from the display. Hold
“FUNC” again to turn auto power off back on.
Specifications
General Specifications
General Specifications
The meter’s accuracy is guarenteed between a temperature
of 64°F~84°F (18°C~28°C), a relative humidity of <75% for
one year. Annual recalibration is recommended.

2.62
157.5
1.8
2.88
1.6

R-00-05-2243