ECOWITT WH41 Manuel utilisateur
1
Wireless PM2.5 Air Quality Sensor
Model: WH41
Contents
1. Introduction ..................................................................3
2. Get Started ................................................................... 3
2.1 Parts List ................................................................ 3
3. Overview ......................................................................4
4. Setup Guide ..................................................................5
5. Mounting ......................................................................6
6. Wi-Fi Configure with gateway .................................. 10
6.1 Pair with Gateway ................................................11
6.2 Wi-Fi Connection for the Gateway ......................11
7. View Online Data on WS View Plus ......................... 11
8. Appendix .................................................................... 13
9. Specification .............................................................. 14
10. Warranty Information .............................................. 15
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Instruction manuals
https://www.ecowitt.com/support/download/58
Help
Our product is continuously changing and improving, partic
ularly online services and associated applications. To downl
oad the latest manual and additional help, please contact our
technical support team:
support@ecowitt.com
support.eu@ecowitt.net (EU/UK)
3
1. Introduction
Thanks for your purchasing this WH41 wireless
PM2.5 air quality sensor. This device measures PM2.5
content in the air. The data can be streamed by Wi-Fi
Gateway (sold separately) and can be viewed on our
WS View Plus mobile application after the Wi-Fi
configuration done. This sensor has a dedicated
console (wh0290) for displaying the sensor data
display. Also with HP2500, wh2680, WN1900
consoles, they can also receive data from this sensor
and push data to www.ecowitt.net cloud data hosting
service.
To ensure the best product performance, please read
this manual and retain it for future reference.
2. Get Started
2.1 Parts List
One PM2.5 Sensor
One USB Cable
One User Manual
Two Ni-MH Rechargeable Batteries
4
3. Overview
Figure 1
1
Solar panel
2
Battery Compartment Cover
3
Red LED Indicator (RF transmission)
4
Blue LED Indicator (charging status)
5
USB Port
6
Battery Compartment
5
4. Setup Guide
1. Remove the battery door on the base of the air
quality sensor.
2. Insert two rechargeable AA batteries.
3. After inserting the batteries, the remote sensor (red)
LED indicator will light for 4 seconds, and then
flash once per 10 minutes thereafter. Each time it
flashes, the sensor is transmitting data.
4. Close the battery door.
5. Connect the USB cable to a standard USB power
adapter (not supplied) and charge battery until blue
LED is turned off, indicating batteries are fully
charged.
6. Without the help of sufficient solar radiation, a fully
charged set battery can last for about 20 days(about
500hours), and battery status monitor on display
will reflect the battery power status. When battery
is empty, please charge sensor again to avoid a
complete battery discharge which is bad for
maintaining its charging performance.
7. When battery is empty, system will stop air quality
measurement, by then there will be no air quality
data measured but sensor sends out last measured
data all the time. If you see a not-changing PM2.5
value against low battery indicator, this means
sensor need to be charged immediately.
6
5. Mounting
Before you mount
Before proceeding with the outdoor mounting detailed
in this section, you may want to skip to Wi-Fi
configuration instructions in section 6 and onwards
first, while you keep the assembled outdoor sensor
package nearby (although preferably not closer than 5
ft from the gateway). This will make any
troubleshooting and adjustments easier and avoids any
distance or interference related issues from the setup.
After the WIFI configuration is completed and
everything is working, return here for outdoor
mounting. If issues show up after outdoor mounting
they are almost certainly related to distance, obstacles
etc.
Spiders are extremely liking to make their home
inside the air sensing tunnel, and once there was a
spider net built, then the sensor will not have air flow
to detect air particles. Spray insect compelling when it
is necessary. When this happened( 0 reading all the
time and battery status is healthy), please try to use a
can of compressed air to blow inside the sensor tunnel
to see if it is possible to blow out the spider net.
7
Outdoor Installation
Use four screws to fix the base of the sensor on a flat
surface. The sensor should not be installed so that it
is exposed directly to outdoor rain. It is
recommended to place it under the awning and raised
1M above ground level, so that each day a few hours
direct sun light or scattered light reaching to the
sensor for charging up the batteries. The solar panel is
optimized for higher charging efficiency at lower sun
lights intensity.
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Routine Service Procedure
The sensor works with a fan for air inspiration, thus it
is easy for dusts being accumulated at the sensor air
entrance. Also insects like spiders, ants likes finding
their home inside the air path tunnel which is an ideal
location for their easy home. So it is important to
check out the sensor for possible dust built up or
insects intrusion. Please make check up every 3
months in operation. The disassembling procedure can
be done in this procedure:
1) Remove the unit from the mount, pinching the
white tabs
2) Remove the batteries
3) Pinch the black tabs, and gently slide the sensor
9
away from the case, there is a wire connected to the
solar cell, so do this gently and leave the wire
intact. It has enough play to allow you to work on
the unit
4) Flip over the central unit, carefully.
5) Remove 3 black rubber covers that hide 3 screws,
use a small screwdriver or another tool to get access
6) Remove the 3 hidden screws
7) Separate the sensor cover from the body
8) Gently, pull up on the fan, it will separate and the
wires have enough play. Remember the orientation
of the fan
9) You will now be able to see the interior of the
sensor. "gently" blow it out with an air duster, or
even compressed air can be considered in case the
dust is built deep inside.
10) Reverse procedure and assemble the unit
Best Practices for Wireless Communication
Wireless communication is susceptible to interference,
distance, walls and metal barriers. We recommend the
following best practices for trouble free wireless
communication.
1.
Electro-Magnetic Interference (EMI).
Keep the console several feet away from computer
monitors and TVs.
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2.
Radio Frequency Interference (RFI).
If you have other 915/433/868 MHz devices(same
frequency with your device) and communication is
intermittent, try turning off these other devices for
troubleshooting purposes. You may need to relocate
the transmitters or receivers to avoid intermittent
communication.
3.
Line of Sight Rating.
This device is rated at 300 feet line of sight (no
interference, barriers or walls) but typically you will
get 100 feet maximum under most real-world
installations, which include passing through barriers
or walls.
4.
Metal Barriers.
Radio frequency will not pass through metal
barriers such as aluminum siding. If you have metal
siding, align the remote and console through a
window to get a clear line of sight.
6. Wi-Fi Configure with gateway
This PM2.5 sensor doesn’t have a display function and
you need to use our WS View Plus App to view the
data on your mobile application after pairing this
device with our Wi-Fi Gateway (sold separately).
Note: This PM2.5 sensor works with WH0290 Air
Quality Monitor display console (sold separately) and
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