Ambient Weather WM-3 User manual

Version 1.0 ©Copyright 2014, Ambient LLC. All Rights Reserved. Page 1
Ambient Weather WM-3 Handheld Wind Meter with
Temperature and Humidity User Manual
Table of Contents
1. Introduction.....................................................................................................................................2
1.1 Parts List.................................................................................................................................2
2. Warnings and Cautions ...................................................................................................................2
3. Getting Started ................................................................................................................................2
4. General Description ........................................................................................................................3
5. Display............................................................................................................................................4
6. Operation.........................................................................................................................................4
6.1 Powering On and Off .............................................................................................................4
6.2 Selecting Wind Speed and Temperature Units of Measure ....................................................4
6.3 Backlight Feature ...................................................................................................................5
6.4 Low Battery Indicator ............................................................................................................5
7. Glossary of Terms...........................................................................................................................5
8. Specifications..................................................................................................................................6
8.1 General Specifications............................................................................................................6
8.2 Measurement Specifications...................................................................................................6
9. Troubleshooting Guide....................................................................................................................6
10. Accessories.................................................................................................................................7
11. Liability Disclaimer....................................................................................................................7
12. Warranty Information .................................................................................................................7
Battery Recycle Statement......................................................................................................................8

Version 1.0 ©Copyright 2014, Ambient LLC. All Rights Reserved. Page 2
1. Introduction
Thank you for your purchase of the Ambient Weather WM-3 Wind Meter with Wind Speed,
Temperature and Wind Chill. The following user guide provides step by step instructions for
installation, operation and troubleshooting.
To download the latest manual and additional troubleshooting tips, please visit:
http://ambientweather.wikispaces.com/wm3
The WM-3 wind meter features:
Wind speed in mph, Km/h, m/s, ft/min or Knots
Beaufort wind scale bar graph
Wind Speed min/max/average selection
“Open Air” temperature and humidity sensors for fast response
Temperature display in degrees Fahrenheit or Celsius
LED backlight
Wind Speed HOLD feature
Low battery display
Lanyard included
Soft case included
Auto power off with override feature
CE Certified & RoHS Compliant
1.1 Parts List
QTY
Item
1
Wind Meter
1
CR2032 3 Volt Lithium Battery
1
Lanyard
1
Soft Carrying Case
1
User Manual
2. Warnings and Cautions
Warnings:
This meter is accurate at low and mid-range air speeds. Consistent use at very high speeds
(example, from the window of a fast moving car) will damage the impeller’s bearing and
reduce accuracy.
This meter is not a personal safety device
3. Getting Started
1. Open the battery cover, as shown in Figure 1. Turn counter clockwise to open.
2. Inset the included 3V CR2032 lithium cell battery, with the (+) terminal up.
3. Replace the cover by turning clockwise. All of the LED segments will briefly light up.

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Figure 1
4. General Description
Figure 2
No
Description
1
Vane Impeller (wind speed)
2
Temperature and humidity sensors
3
LCD with backlight
4
Wind Speed Units and temperature selection button
5
Power button
6
Set button
7
Battery cover
8
Lanyard attachment point

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5. Display
Figure 3
No
Description
1
Beaufort Scale
2
Primary Display forAir Velocity (wind speed)
3
HOLD: Displayed when meter is on hold mode
MAX: Maximum wind speed recorded while in this mode
MIN: Minimum wind speed recorded while in this mode
AVG:Average wind speed recorded while in this mode
4
Temperature Display (℃/℉switchable)
5
Air Velocity measurement options:
m/s: Meters per Second
ft/min: Feet per Minute
knots: Knots
km/h: Kilometers per Hour
mph: Miles per Hour
6
Auto Power Off Function is overridden
Low battery indicator
Temperature is below 32 ℉(0 ℃)
7
Relative Humidity Display (%RH)
6. Operation
6.1 Powering On and Off
To power ON the meter, press the button. To save power, the meter will power off automatically
after 10 minutes.
To override the Auto Power Off, with the meter powered off, hold down the Set button and then press
the button at the same time. The power icon will remain on the display until the batteries run
down or the unit is turned off.
To power OFF the meter, press and hold the button.
6.2 Selecting Wind Speed and Temperature Units of Measure
Press the Units button to change the wind speed units of measure.

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Press and Hold the Units button to change the temperature units of measure.
6.3 Backlight Feature
The backlight will automatically turn off after 10 seconds of inactivity. To override this feature, hold
down the Units button and then press the button at the same time. The backlight will stay on.
6.4 Low Battery Indicator
If the low battery indictor is present, or there is no LCD display, it is time to change the battery.
7. Glossary of Terms
Term
Definition
Accuracy
Accuracy is defined as the ability of a measurement to match the actual value of the
quantity being measured.
Beaufort Scale
The Beaufort Scale is an empirical measure for describing wind speed based mainly
on observed sea conditions (on land it is categorized by the physical effects it has
on vegetation and structures). Its full name is the Beaufort Wind Force Scale.
Range
Range is defined as the amount or extent a value can be measured.
The Beaufort Scale is displayed on the top and left side of the display, and is defined as follows:
No
Description
m/s
kts
mph
km/h
ft/min
0
Calm
0-0.2
0-1
0-1
0-1
0-58
1
Light air
0.3-1.5
1-3
1-3
1-5
59-314
2
Light breeze
1.6-3.3
4-6
4-7
6-11
315-668
3
Gentle breeze
3.4-5.4
7-10
8-12
12-19
669-1082
4
Moderate breeze
5.5-7.9
11-16
13-18
20-28
1083-1574
5
Fresh breeze
8.0-10.7
17-21
19-24
29-38
1575-2125
6
Strong breeze
10.8-13.8
22-27
25-31
39-49
2126-2735
7
Near gale
13.9-17.1
28-33
32-38
50-61
2736-3385
8
Gale
17.2-20.7
34-40
39-46
62-74
3386-4093
9
Strong gale
20.8-24.4
41-47
47-54
75-88
4094-4822
10
Storm
24.5-28.4
48-55
55-63
89-102
4823-5609
11
Violent storm
28.5-32.6
56-63
64-72
103-117
5610-6417
12
Hurricane force
〉32.6
>63
>72
>117
>6417

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8. Specifications
8.1 General Specifications
Wind Speed Update Interval: 0.5 seconds
Temperature Update Interval: 0.1 seconds
Humidity Update Interval: 1 second
Power Source: 1 x 3V lithium cell (CR2032)
Battery Life: About 1 year
Dimensions (L x W x H): 1.6” x 0.75” x 4.5” (40 x 19 x 115 mm)
8.2 Measurement Specifications
The following table provides specifications for the measured parameters.
Wind speed range:
Unit
Range
Resolution
Threshold
Accuracy
M/s
0 ~ 30
0.1
0.1
±5%
Ft/min
0 ~ 5860
19
39
Knots
0 ~ 55
0.2
0.1
Km/hr
0 ~ 55
0.2
0.3
Mph
0 ~ 65
0.2
0.2
Temperature and Humidity range:
Unit
Range
Resolution
Accuracy
°C
-10 ~ 50
0.1
±1
°F
14 ~ 122
0.1
±2
%RH
20 ~ 90%
1
±5%
Other specifications:
Battery
CR2032 2.0V
Operating temperature
-10 ~ 50°C (14 ~ 122℉)
Operating humidity
≤90%
Current consumption
About 2.5mA
Weight
60g
9. Troubleshooting Guide
To download the latest manual and additional troubleshooting tips, please visit:
http://ambientweather.wikispaces.com/wm3
If your question is not answered here, you can contact us as follows:
1. Email Support: [e-mail]
2. Technical Support: 480-346-3398 (M-F 8am to 4pm Arizona Time)
Problem
Solution
Impeller appears imbalanced.
It is normal for the impeller to oscillate as it comes to a
stop, and it is not imbalanced. The unit contains a very
small magnet that responds to the earth’s magnetic fields.
This does not affect the accuracy of the wind speed

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Problem
Solution
readings and only appears when breaking or accelerating.
Vane is noisy at high speed.
This is normal for the vane to vibrate at high speed. Do
not operate above 67 mph. Above 67 mph, the unit will
display ---.
Display is dim or disappears.
The LCD display will not operate below approximately
14 °F. Use the warmth of your body or environment for
use in cold weather conditions, or Battery is dead.
Replace the battery.
1. The
10. Accessories
The following software and hardware accessories are available for this weather station at
www.AmbientWeather.com .
Accessory
Description
Ambient Outdoors CR2032 3 Volt Lithium
Button Cell Battery
Standard CR2032 3 Volt Lithium Battery (1 battery)
11. Liability Disclaimer
Please help in the preservation of the environment and return used batteries to an authorized depot.
The electrical and electronic wastes contain hazardous substances. Disposal of electronic waste in
wild country and/or in unauthorized grounds strongly damages the environment.
Reading the “User manual” is highly recommended. The manufacturer and supplier cannot accept any
responsibility for any incorrect readings and any consequences that occur should an inaccurate reading
take place.
This product is designed for use in the home only as indication of weather conditions. This product is
not to be used for medical purposes or for public information.
The specifications of this product may change without prior notice.
This product is not a toy. Keep out of the reach of children.
No part of this manual may be reproduced without written authorization of the manufacturer.
Ambient, LLC WILL NOT ASSUME LIABILITY FOR INCIDENTAL, CONSEQUENTIAL,
PUNITIVE, OR OTHER SIMILAR DAMAGES ASSOCIATED WITH THE OPERATION OR
MALFUNCTION OF THIS PRODUCT.
12. Warranty Information
Ambient, LLC provides a 1-year limited warranty on this product against manufacturing defects in
materials and workmanship.
This limited warranty begins on the original date of purchase, is valid only on products purchased and
only to the original purchaser of this product. To receive warranty service, the purchaser must contact
Ambient, LLC for problem determination and service procedures.
Warranty service can only be performed by a Ambient, LLC. The original dated bill of sale must be

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presented upon request as proof of purchase toAmbient, LLC.
Your Ambient, LLC warranty covers all defects in material and workmanship with the following
specified exceptions: (1) damage caused by accident, unreasonable use or neglect (lack of reasonable
and necessary maintenance); (2) damage resulting from failure to follow instructions contained in your
owner’s manual; (3) damage resulting from the performance of repairs or alterations by someone other
than an authorized Ambient, LLC authorized service center; (4) units used for other than hobbyist
use (5) applications and uses that this product was not intended and (6) extreme acts of nature, such as
lightning strikes or floods.
This warranty covers only actual defects within the product itself, and does not cover the cost of
installation or removal from a fixed installation, normal set-up or adjustments, claims based on
misrepresentation by the seller or performance variations resulting from installation-related
circumstances.
Battery Recycle Statement
Recycle Rechargeable Batteries
Recycle your old rechargeable batteries at one of the many collection sites
in the U.S. and Canada. To find the site nearest you, visit
www.call2recycle.org or call toll-free 1-877-2-RECYCLE.