Hobo Rxw-wcf series User manual

HOBO® RX Wireless Sensor Network

RXW Davis® Wind Speed and Direction Sensor (RXW-WCF-xxx) Manual

22245-2

This sensor measures wind speed and direction and is designed to work with the HOBO RX

Wireless Sensor Network in which data is transmitted wirelessly from the sensor mote across

the network to the RX3000 station and then uploaded to HOBOlink® web-based software. With

HOBOlink, you can monitor sensor readings, view graphs, set up alarms, download data, and

more.

Specifications

Sensor Wind Speed/Gust Wind Direction

Measurement Range 0 to 76 m/sec (0 to 170 mph) 0 to 355 degrees

Accuracy ±1.1 m/sec (±2 mph) or ±5% of

reading, whichever is greater

±7 degrees

Resolution 0.5 m/sec (1.1 mph) 1 degrees (0 to 355 degrees)

Starting Threshold ≤1 m/sec (2.2 mph) 1 m/sec (2.2 mph)

Turning Radius 108 mm (4.25 in.) Approximately 135 mm (5.25 in.)

Measurement Definition Cup revolutions are accumulated

every three seconds for the

duration of the logging interval (see

Measurement Operation)

Wind speed: Average speed for the

entire logging interval

Gust speed: The highest three-

second wind recorded during the

logging interval

Unit vector averaging used; vector

components for each wind

measurement are calculated every

three seconds for duration of

logging interval (see Measurement

Operation)

ireless Mote

perating Temperature

Range

-25° to 60°C (-13° to 140°F) with rechargeable batteries

-40 to 70°C (-40 to 158°F) with lithium batteries

Radio Power 12.6 mW (+11 dBm) non-adjustable

Transmission Range At least 304.8 m (1,000 ft) line of sight at 1.8 m (6 ft) from the ground,

457.2 m (1,500 ft) typical

Wireless Data Standard IEEE 802.15.4

Radio Operating

Frequencies

RXW-WCF-900: 904–924 MHz

RXW-WCF-868: 866.5 MHz

RXW-WCF-922: 916–924 MHz

Modulation Employed OQPSK (Offset Quadrature Phase Shift Keying)

Data Rate Up to 250 kbps, non-adjustable

Duty Cycle <1%

Maximum Number of

Motes

50 motes per one RX Wireless Sensor Network

Battery Type/

Power Source

Two AA 1.2V rechargeable NiMH batteries, powered by built-in solar panel

or two AA 1.5 V lithium batteries for operating conditions of -40 to 70°C (-40

to 158°F)

Battery Life With NiMH batteries: Typical 3–5 years when operated in the temperature

range -20° to 40°C (-4°F to 104°F) and positioned toward the sun (see

Deployment and Mounting), operation outside this range will reduce the

battery service life

With lithium batteries: 1 year, typical use

Dimensions Sensor: 470 x 191 x 121 mm (18.5 x 7.5 x 4.75 in.)

Cable length: 3 m (9.8 ft)

Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)

Weight Sensor and cable: 1.332 kg (2 lb, 15 oz)

Mote: 223 g (7.87 oz)

RXW Davis Wind Speed &

Direction Sensor

Models:

•RXW-WCF-900 (US)

•RXW-WCF-868 (Europe)

•RXW-WCF-922

(Australia/NZ)

Items Included:

•Cable ties

Items required:

•Weather-resistant cable

ties or cable clips

•Electrical tape

•Handheld compass, local

area map, or handheld GPS

If mounting on tripod or mast:

•Adjustable wrench

If mounting on wooden surface:

•Drill with 5 mm (3/16 inch)

drill bit

Accessories:

•Grounding kit (M-GKA)

RXW Davis Wind Speed and Direction Sensor (RXW-WCF-xxx) Manual

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Specifications (continued)

Materials Sensor: Polycarbonate wind cups, sealed stainless steel bearing, UV-resistant

ABS wind vane and black-anodized aluminum anemometer arm

Mote: PCPBT, silicone rubber seal

Environmental Rating Sensor: Weatherproof

Mote: IP67

ompliance Marks RXW-WCF-900: See last page

RXW-WCF-868: The CE Marking identifies this product as

complying with all relevant directives in the European Union (EU).

RXW-WCF-922: See last page

Mote Components and Operation

Sensor Mote Closed, Front Sensor Mote Closed, Back

Sensor Mote Opened

Mounting Tab: Use the tabs at the top and bottom of the mote

to mount it (see Deploying and Mounting).

Solar Panel: Position the solar panel towards the sun to charge

the mote batteries (see Deploying and Mounting).

Sensor Cable: This is the cable that connects the mote to the

sensor.

Eyelet: Use this eyelet to attach a 3/16 inch padlock to the

mote for security.

Latch: Use the two latches to open and close the mote door.

Ground Wire Port: Use this port to connect a ground wire (see

Deploying and Mounting).

Antenna: This is the built-in antenna for the radio

communications across the RX Wireless Sensor Network.

Solar Panel Cable: This cable connects the built-in solar panel

to the mote circuitry.

LEDs: The blue LED to the left of the LCD screen blinks at 4

seconds during normal operation. It blinks more frequently

when initially joining a network. If the mote is not currently

part of a network, the blue LED will be off. If the LED is on and

not blinking, there is a problem with the mote. Contact

Technical Support at www.onsetcomp.com/support/contact.

The yellow-green LED to the upper right of the batteries only

blinks during the process of joining a network.

Battery Holder: The location where the rechargeable AA

batteries are installed as shown (see Battery Information).

USB Port: Use this port to connect to the mote to a computer

via USB cable if you need to update the firmware (see Updating

Mote Firmware).

Button: Push this button for 1 second to illuminate the LCD or 3

seconds for the mote to search for an RX Wireless Sensor

Network to join (see Adding the Mote to the RX Wireless Sensor

Network).

LCD Screen: The mote is equipped with an LCD screen that

displays details about the current status. This example shows all

symbols illuminated on the LCD screen followed by definitions

of each symbol in the table.

LCD Symbol Description

The battery indicator shows the approximate

battery charge remaining.

This is a signal strength indicator. The more bars,

the stronger the signal between motes. This icon

will blink when you press the button on the mote

to search for a network to join (see Adding the

Mote to the RX Wireless Sensor Network for

details).

This indicates that the mote is not part of a

network. See Adding the Mote to the RX Wireless

Sensor Network for details on how to add a mote

to the network.

Solar Panel

Button

USB Port

Battery Holder

LCD Screen

Latch

LED

Eyelet

Ground Wire

Port

Mounting

Tab

Sensor Cable

Solar Panel Cable

Antenna

LED

RXW Davis Wind Speed and Direction Sensor (RXW-WCF-xxx) Manual

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Sensor Components

The sensor includes the components shown below.

The sensor also includes a hardware kit with the items most

commonly needed for installation as shown below. The items

you use from the kit depend on where you install the sensor.

You may need to adapt or purchase additional hardware to fit

your individual requirements.

Adding the Mote to the RX Wireless Sensor

Network

The mote must join an RX Wireless Sensor Network before it

can begin measuring wind speed and direction and transmitting

data. This requires accessing the RX3000 Station and the mote

at the same time so it is recommended that you complete

these steps before deploying the mote.

Important: If you have not configured the RX3000 Station with

the RXW Manager, follow the instructions in the RX3000 Quick

Start before continuing.

To add a mote to the RX Wireless Sensor Network:

1. If the LCD is blank on the RX3000 station, press any button

to wake it up.

2. Press the Select button once (which shows the number of

smart sensors installed) and then press it again once if the

HOBO RXW Manager is installed in the left slot (module 1)

or twice if it is installed on the right slot (module 2).

3. Press the Search button (the magnifying glass). The

magnifying glass icon will blink while the RX3000 is in search

mode.

4. Open the mote door and install the batteries if you have not

already done so.

5. Press the button on the mote for 3 seconds. The signal

strength icon will flash and then cycle.

6. Watch the LCD on the mote. The signal strength icon and

the LEDs will quickly blink while the mote searches for the

wireless network. Once it has found the network, the icon

will stop blinking and the signal strength bars will slowly

cycle from left to right. As the mote completes its

registration process with the network, the “x” icon to the

right of the signal strength icon will flash and the yellow-

green LED will stop blinking. Once the registration is

complete, the signal strength bars will stop cycling and

remain solid and the channel count on the RX3000 LCD will

be updated. This process may take up to five minutes. Note:

The channel count on the LCD will increase by 3: two for

wind speed and direction, and one for the mote battery.

Press this button to view the module

where the RXW Manager is installed

Press this button so the station is ready

to have motes join the network

Press this button for 3

seconds for the mote to

join the network

RXW Davis Wind Speed and Direction Sensor (RXW-WCF-xxx) Manual

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7. Press the Search button (the magnifying glass) on the

RX3000 Station to stop searching for motes.

Measurements will be recorded at the logging interval specified

in HOBOlink, transmitted to the RX3000 Station, and uploaded

to HOBOlink at the next connection interval (readout). Use

HOBOlink to monitor mote status and health. If a mote is

temporarily offline, any logged data is saved until it is back

online. In addition, if a mote is offline for 30 minutes, the

RX3000 Station will automatically connect to HOBOlink and

report the mote as missing. Once the mote is back online, any

logged data will be uploaded the next time the RX3000 station

connects to HOBOlink.

See the HOBOlink Help for details on how to change the logging

and connection intervals, view data, check mote status, add the

mote to a map, and more.

Assembling the Sensor

Attaching the Wind Vane

The wind direction has been calibrated in the factory so that

the wind direction will be correct when the arm is installed

pointing north and the vane is installed correctly.

1. Slide the wind vane onto the wind vane shaft. The shaft’s

cross-section is D-shaped to ensure that the anemometer is

installed correctly.

2. Tighten the set screw in the wind vane with the Allen

wrench.

Attaching the Wind Cups

1. Push the wind cups onto the anemometer’s stainless steel

wind cup shaft.

2. Slide the wind cups up the shaft as far as possible.

3. Use the Allen wrench provided to tighten the set screw on

the side of the wind cups. The wind cups should drop

slightly when you let go.

4. Ensure the set screw is screwed in fully and very tight.

Failure to do so will cause the anemometer to function

improperly.

5. Spin the wind cups; they should spin freely. If they do not

spin freely, take them off and repeat these steps

Attaching the Anemometer Arm to the Base

1. Insert the anemometer arm into the base, sliding the cable

through the notch in the base as shown below. Be sure to

line up the small hole in the arm with the holes in the base.

2. Insert the machine screw through the holes in the base and

arm.

3. Slide the tooth-lock washer and hex nut onto the machine

screw. Tighten the hex nut while holding the screw with a

Phillips head screwdriver to prevent it from turning.

4. Press the sensor cable firmly and completely into the zig-

zagging channel in the base, starting from the arm and

progressing downward to the bottom of the base.

Deployment and Mounting

Mounting and Positioning the Mote

•Use cable ties to mount the mote via the holes on the

mounting tabs.

•Avoid mounting the mote near metal, which can cause

interference with the signal.

•Position the mote towards the sun, making sure the solar

panel is oriented so that it receives optimal sunlight

throughout each season. I It may be necessary to

periodically adjust the mote position as the path of the

sunlight changes throughout the year or if tree and leaf

growth alters the amount of sunlight reaching the solar

panel.

•Make sure the mote door is closed, with both latches fully

locked to ensure a watertight seal.

Press this button again to

stop searching for motes

RXW Davis Wind Speed and Direction Sensor (RXW-WCF-xxx) Manual

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•Consider using a 3/16 inch padlock to restrict access to the

mote. With the mote door closed, hook a padlock through

the eyelet on the right side of the door and lock it.

•To maximize the communication between motes, place

the mote within 304.8–457.2 m (1,000–1,500 feet) and full

line of sight with the next mote in the network and at least

1.8 m (6 feet) from the ground.

•If there is an obstruction between two sensor motes or

between the sensor mote and the RXW Manager, then use

an RXW Repeater (RXW-RPTR-xxx) mounted higher than

the two motes. For example, if there is a hill or mountain

between the sensor mote and the RXW Manager, place a

repeater at the top of the hill between the sensor mote

and the RXW Manager.

•There should not be more than five motes in any direction

from a repeater or the RXW Manager. Data logged by a

wireless sensor must travel or “hop” across the wireless

network from one mote to the next until it ultimately

reaches the RXW Manager at the RX3000 station. To make

sure the data can successfully travel across the network,

the sensor mote should not be more than five hops away

from a repeater or manager.

•The RX Wireless Sensor Network can support a maximum

of 50 motes.

•Use a #4-40 screw to attach a ground wire to the port on

the back of the mote if you are deploying the mote in a

location where lightning is a concern.

•Make sure the mote remains in a vertical position once it

is placed in its deployment location for optimal network

communications.

Sensor Mounting Guidelines

Use the following guidelines to determine the best location for

installing the sensor.

•To ensure correct orientation of the wind vane, the sensor

must be mounted so that the anemometer arm points

north. See North Alignment for steps on finding true north.

•For the most accurate readings, the sensor should be

mounted 2 m (7 ft) or more above the ground and

consistent with meteorological standards for the

application. The sensor should be mounted at least 2.1 m

(7 ft) above the roof line if mounted on a roof and

mounted at a distance of at least five times the height of

the nearest tree, building, or other obstruction. You may

do this by mounting the sensor on an Onset tripod or

mast, or a metal pipe. You may mount the sensor on a

wooden post if it has a side facing due north for mounting.

•The tripod or mounting mast must be properly grounded.

For field installations, you can use Onset’s Grounding Kit

(M-GKA).

•If you live in an area subject to frequent thunderstorms,

installing a lightning rod nearby can reduce the risk of

damage.

•Be sure to secure the sensor cable with cable ties to

protect it from damage.

•Secure the mast the wind sensor is mounted on so that it

does not vibrate. If you are using Onset masts or tripods,

secure them with guy wires.

•The sensor can be damaged with improper handling. Store

the sensor in its shipping box until you are ready to install it.

•To minimize measurement errors due to ambient RF, use

the shortest possible probe cable length and keep the

probe cable as far as possible from other cables carrying

high frequency or high current signals.

Sensor Mounting on a Mast

Follow these instructions for mounting the sensor on a tripod

or mast. The U-bolts included can be used for mounting the

sensor on a mast or tripod with an outside diameter ranging

from 32–44 mm (1.25–1.75 inches). Larger U-bolts (not

supplied) can be used to mount on a mast or tripod with a

maximum outside diameter of 64 mm (2.5 inches). To mount

the sensor on a mast or tripod smaller than 32 mm (1.25

inches), use a U-Bolt that fits the anemometer base openings,

but has a shorter threaded section.

1. Place the U-bolt around the pole so that its two ends

extend through the holes in the mounting base. Loosely

secure with the flat washers, lock washers, and hex nuts.

2. Raise the anemometer to the desired height on the pole

and swivel it so the anemometer arm is pointing north.

3. Using an adjustable wrench or 7/16 inch wrench, tighten

the hex nuts until the anemometer is firmly fastened on the

pole.

Sensor Mounting on a Wooden Post or Surface

Follow these instructions for mounting the sensor on a wooden

post or surface. The sensor must be mounted on the side that is

facing due north (the mounting arm must point north for

proper wind direction measurements).

1. Hold the anemometer base against the wood surface and

use a pencil to mark the location of the two holes on the

base.

2. Use a drill with a 5 mm (3/16 inch) drill bit to make pilot

holes in these locations.

RXW Davis Wind Speed and Direction Sensor (RXW-WCF-xxx) Manual

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3. Drive the 3-inch lag screws through the holes in the

anemometer base and into the wood.

Securing the Sensor Cables

To prevent fraying or cutting the anemometer cables where it is

exposed to weather, secure it so it does not whip about in the

wind. Use cable clips or weather resistant cable ties to secure

the cable. Place clips or cable ties approximately every 1 to 1.6

m (3 to 5 ft). Do not use metal staples to secure cables as they

can cut the cables.

Measurement Operation

Wind speed measurements are averaged automatically every 3

seconds within each logging interval. Wind speed is reported as

the average speed for the entire logging interval. For example,

if the logging interval is set to 1 minute, then 20 measurements

(1 measurement every 3 seconds for 60 seconds) are averaged

together and the result is logged each minute. The gust speed is

the highest 3-second wind recorded during the logging interval.

Unit vector averaging is used to determine wind direction

because traditional averaging would produce inaccurate

results. For example, three measurements of 350, 11, and 12

degrees—which are all winds from the north—averaged

together would result in 126 degrees, which incorrectly

indicates a southeasterly wind. Instead, the vector components

(North/South and East/West) for each wind measurement are

calculated every three seconds for the duration of the logging

interval. At the conclusion of the logging interval, the

North/South and East/West components are averaged and

then re-combined to calculate the average wind direction for

the logging interval.

North Alignment

The sensor must be oriented to true north to obtain meaningful

data. There are two methods to align the sensor:

•Compass Alignment

•Global Positioning Satellite (GPS) alignment

Note: The magnetic declination must be known to align the

direction sensor to true north using a magnetic compass.

Worldwide declination information is available from the

National Space Science Data Center at:

http://nssdc.gsfc.nasa.gov/space/cgm/cgm.html.

Compass Alignment

Tools required:

•Compass

•Binoculars

•Tape (such as electrical, packing, or duct tape)

Two people are required to complete this procedure.

1. Position the wind vane so that it points in the same

direction as the mounting arm. Secure the vane on the arm

with a piece of tape so that the vane cannot rotate.

2. While standing 150 to 200 feet south of the sensor, use the

compass to determine magnetic north. If true north is the

same as magnetic north, align yourself so the compass

points north and directly at the sensor. If you are in area

with an east variation, align yourself so that the station is

that number of degrees to the east of magnetic north. If

you are in an area with a west variation, align yourself so

that the station is that number of degrees to the west of

magnetic north.

3. While viewing the sensor through binoculars, instruct

another person to rotate the arm to point the vane north.

The vane should seem to disappear from sight when

properly aligned.

4. Once you’ve obtained the correct position, secure the

sensor base and remove the tape.

GPS Alignment

Tools required:

•Handheld GPS with WAAS-enabled receiver or any

similar high accuracy GPS device

•Flag, orange cone, or other temporary marker

•Access to your HOBOlink account

This procedure requires only one person, but is easier to

complete with two people. In this procedure, you will be using

the GPS receiver first to create an arbitrary waypoint and then

to determine the bearing from the sensor to that waypoint. You

will then align the sensor so that when the vane is pointed at

the waypoint, the direction reported by HOBOlink matches the

GPS receiver’s bearing to the waypoint.

1. In HOBOlink, temporarily set the logging interval to 1 minute

or the fastest logging interval supported by the device

communication plan (if applicable). Refer to the online help

for details on operating HOBOlink.

2. Pick a visible location that is at least 100 meters (110 yards)

away from the sensor and walk to it. Establish a waypoint

with the handheld GPS receiver. You may want to use

averaging to minimize the waypoint position error if your

GPS receiver is so equipped. (For best results, the estimated

position error of the waypoint should be less than 10 feet if

the distance to the sensor is 100 meters, and less than 20

feet for a distance of 200 meters. Mark the waypoint with a

flag, orange cone, or other suitable marker. Walk back to

the sensor and determine the bearing to the waypoint you

just created with the GPS receiver. Again you may need to

determine the average value of the bearing to keep the

errors to a minimum.

RXW Davis Wind Speed and Direction Sensor (RXW-WCF-xxx) Manual

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3. Check the latest reading in HOBOlink keeping in mind that

the data is only updated when the station connects to

HOBOlink. It may take a couple of connections before the

latest reading from the mote is transmitted to the station

and then uploaded to HOBOlink. The value should match

the angle obtained with the GPS receiver. If it does not,

reposition the sensor vane so that it is pointed directly at

the waypoint flag or marker and then rotate the sensor

mounting arm as needed and wait for the next HOBOlink

reading. Repeat this until the wind direction sensor value in

HOBOlink matches the angle obtained with the GPS

receiver.

4. Once the vane is in position, secure the mounting base and

then double-check that the reported angle is correct.

Maintenance

The sensor does not normally require any maintenance other

than an occasional cleaning. If the vane becomes dirty, rinse it

with mild soap and fresh water. Do not immerse the sensor in

water or use any organic solvents to clean the unit. Do not

attempt to lubricate the wind cup shaft or bearings or the wind

vane shaft. Natural or synthetic lubricants will inhibit the

normal operation of the anemometer.

The mote is designed for outdoor use, but should be inspected

periodically. When inspecting the mote, do the following:

•Verify the mote is free of visible damage or cracks.

•Make sure the mote is clean. Wipe off any dust or grime

with a damp cloth.

•Wipe off any water before opening the mote.

•Make sure the interior seal is intact and the latches are

fully locked when the mote door is closed.

Verifying Sensor Accuracy

It is recommended that you check the accuracy of the sensor

annually. The sensor cannot be calibrated. If the sensor is not

providing accurate data, then it is damaged or possibly worn

out if it has been in use for several years.

Updating Mote Firmware

If a new firmware version is available for the mote, use

HOBOlink to download the file to your computer. Connect the

mote to the computer with a USB cable (open the mote door

and use the USB port to the right of the LCD). The mote appears

as a new storage device in the computer’s file storage manager.

Copy the downloaded firmware file to the new storage device

(the mote). After the file is copied, eject the storage device

from the computer and disconnect the cable from the mote.

The file will be installed automatically on the mote. Note to

Mac® users: A message may appear indicating the disk has not

ejected properly. The mote is operational and you can ignore

the message.

Battery Information

The mote uses two 1.2 V rechargeable NiMH batteries, charged

by the built-in solar panel. The quality and quantity of solar

light can affect whether the battery is sufficiently charged to

last through the night and cloudy periods. Make sure the mote

is placed in a location that will receive several hours of sunlight

each day. If the mote does not receive enough sunlight to

recharge the batteries, the battery life is estimated at 3–4

months. When batteries are regularly recharged, expected

battery life is estimated at 3–5 years. Battery life varies based

on the ambient temperature where the mote is deployed, the

logging interval, the number of tripped alarms, and other

factors. Deployments in extremely cold or hot temperatures

can impact battery life. Estimates are not guaranteed due to

uncertainties in initial battery conditions and operating

environment.

Mote operation will stop when battery voltage drops to 1.8 V.

Mote operation will return if the battery recharges to 2.3 V. If

the batteries are unable to be recharged, replace them with

fresh rechargeable batteries.

To replace rechargeable batteries:

1. Open the mote door.

2. Remove the old batteries and install the new ones

observing polarity.

3. Make sure the solar panel cable is plugged in.

You can use two 1.5 V lithium batteries (HWSB-LI) for operation

at the extreme ends of the mote operating range. Lithium

battery life is an estimated at 1 year, but varies based on the

ambient temperature where the mote is deployed, the logging

interval, the number of tripped alarms, and other factors.

Estimates are not guaranteed due to uncertainties in initial

battery conditions and operating environment. When using

lithium batteries, you must disconnect the solar panel cable

because the batteries will not be recharged.

To install lithium batteries:

1. Open the mote door.

2. Remove any old batteries and install the new ones

observing polarity.

3. Push in the side tab of the solar panel cable connector and

pull the connector out of the cable port.

Make sure

solar panel

cable is

installed

when using

rechargeable

batteries

RXW Davis Wind Speed and Direction Sensor (RXW-WCF-xxx) Manual

1-800-LOGGERS (564-4377) • 508-759-9500

www.onsetcomp.com/support/contact

trademarks of Onset Computer Corporation. Some material reprinted with permission from Davis Instruments

Corporation. Davis is a registered trademark of Davis Instruments Corporation. Mac is a registered trademark

of Apple Inc. All other trademarks are the property of their respective companies.

22245-2

4. Place the connector in the slot on the inside of the mote

door. Make sure the solar panel cables are tucked inside the

door so that they do not interfere with the interior seal

when the mote is closed.

WARNING: Do not cut open, incinerate, heat above 85°C

(185°F), or recharge the batteries. The batteries may explode if

the logger is exposed to extreme heat or conditions that could

damage or destroy the battery cases. Do not mix battery types,

either by chemistry or age; batteries may rupture or explode.

Do not dispose of the logger or batteries in fire. Do not expose

the contents of the batteries to water. Dispose of the batteries

according to local regulations.

Federal Communication Commission Interference Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide

reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and

used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user

is encouraged to try to correct the interference by one of the following measures:

•Reorient or relocate the receiving antenna

•Increase the separation between the equipment and receiver

•Connect the equipment into an outlet on a circuit different from that to which the receiver is connected

•Consult the dealer or an experienced radio/TV technician for help

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device

must accept any interference received, including interference that may cause undesired operation.

FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.

Industry Canada Statements

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and

(2) this device must accept any interference, including interference that may cause undesired operation of the device.

Avis de conformité pour l’Industrie Canada

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1)

l'appareil ne doit pas produire de brouillage, et (2) l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le

fonctionnement.

To comply with FCC and Industry Canada RF radiation exposure limits for general population, the logger must be installed to provide a separation distance of at least 20cm from