BRESSER 7110300 Air Quality Monitor with Wireless Sensor Instruction Manual

June 5, 2024
BRESSER

BRESSER 7110300 Air Quality Monitor with Wireless Sensor

INSTRUCTION MANUAL

About this Instruction Manual
These operating instructions are to be considered a component of the device. Please read the safety instructions and the operating instructions carefully before use. Keep these instructions for renewed use at a later date. When the device is sold or given to someone else, the instruction manual must be provided to the new owner/user of the product.

GENERAL WARNINGS

  • Risk of electric shock — This device contains electronic components that operate via a power source
    (batteries). Children should only use the device under adult supervision. Only use the device as described in the manual; otherwise, you run the risk of an electric shock.

  • Choking hazard — Children should only use the device under adult supervision. Keep packaging material, like plastic bags and rubber bands, out of the reach of children, as these materials pose a choking hazard.

  • Risk of chemical burn — Keep batteries out of the reach of children! Make sure you insert the batteries correctly. Leaking battery acid can lead to chemical burns. Avoid contact of battery acid with skin, eyes and mucous membranes. In the event of contact, rinse the affected region immediately with a plenty of water and seek medical attention.

  • Risk of fire/explosion — Do not expose the device to high temperatures. Use only the recommended batteries. Do not short-circuit the device or batteries, or throw them into a fire. Excessive heat or improper handling could trigger a short-circuit, a fire, or an explosion.

  • Do not disassemble the device. In the event of a defect, please contact your dealer. The dealer will contact the Service Centre and can send the device in to be repaired, if necessary.

  • Use only the recommended batteries. Do not use batteries from different brands or with different capacities. The batteries should be removed from the unit if it has not been used for a long time.

SCOPE OF DELIVERY

Air Quality Monitor (Main unit console), Air Quality Sensor), Operating instructions, 3x AA rechargeable batteries for the Air Quality Sensor (NiMH, rechargeable)

BEFORE YOU BEGIN

  • We recommend using alkaline batteries. If temperatures regularly fall below 0°C (32°F), we recommend using lithium batteries.
  • Avoid using rechargeable batteries. (Rechargeable batteries cannot maintain correct power requirements.)
  • Insert batteries before first use, matching the polarity in the battery compartment. 2x AA batteries are required for the Air Quality Monitor and 3x AA batteries (NiMH, rechargeable) are required for the Wireless Air Quality Sensor.

INTRODUCTION

  • Why PM2.5?
    PM2.5 (particles less than 2.5 micrometers in diameter) can penetrate deeply into the lungs, irritate and corrode the alveolar wall, and consequently impair lungs function, thus triggering asthma attack or contributing to cardiovascular disease. Example of PM2.5 are fine dust from vehicle exhaust, wildfire, power plant emissions, other combustion activities.

  • Why PM10?
    PM10 (particles less than 10 micrometers in diameter) can irritate exposed mucous such as the eyes and throat. Thus high levels of PM10 could easily make people cough, nose run and eyes sting. PM10 includes dust from construction sites, highways, roadways, landfills and agriculture, wind fires and bush/waste burning, industrial source; wind-blown dust from open lands, pollen, mold spores, and fragments of bacteria.

  • Swiss sensor technology with MCERTS certification
    The device comes with Swiss made SENSIRION Particulate Matter Sensor SPS series designed for indoor and outdoor air quality application. Its measurement principle is based on laser scattering and innovative contamination-resistance technology, which enables precise measurements from the device’s first operation and throughout its lifetime of usage.

  • Multi-zone feature
    Through our multi-zone technologies, each device has a unique device code with a user selectable channel number. Up to 4 separate air quality sensors can be placed in an open proximity covering an area across 100m radius from its main display unit (Air Quality Monitor).

  • Low maintenance
    The Swiss sensor is expected to have a lifetime of over 10 years while operating continuously for 24 hours/day. With its contamination-resistance material, there is no need for cleaning and/or maintenance, thus avoiding problems related to sensor drift or malfunction.

OVERVIEW

WIRELESS PM2.5/PM10 AIR QUALITY SENSOR

  1. LCD display
  2. [ MODE ] key
  3. [ CHECK ] key
  4. Wall mounting holder
  5. [ CH1 ~ 4 ] slide switch
  6. [ RESET ] key
  7. Battery compartment
  8. DC adapter USB power port

BATTERY INSERTION

  1. Unscrew and remove the battery door of sensor with a screwdriver.
  2. Insert the 3 rechargeable batteries (included) into the battery compartment in the following order:
  3. Screw the battery door compartment on tightly.
  4. After inserting batteries, all LCD segment will be shown for 1 second.

GETTING STARTED

  1. Slide [ CHANNEL ] to set the channel number for your sensor(s).
  2. Use a pin to press [ RESET ] key for run the channel number.

Note:

If there are more than one sensor in use, ensure to assign different channel numbers for each sensor to enable the measurement is displayed correctly on the console.

LCD DISPLAY

  1. PM2.5 / PM10 display mode
  2. PM2.5 / PM10 concentration value
  3. PM2.5 / PM10 concentration level
  4. Sensor Wireless channel number
  5. Transmission signal
  6. Battery power indicator

DISPLAY MODE

Press [ MODE ] to toggle the display mode between PM10 and PM2.5.

MEASUREMENT INTERVAL

  • Powered by DC adapter
    The device measures PM2.5 or PM10 concentration every minute automatically when powered with a DC adapter.

  • Manual detection
    User can press [ CHECK ] button anytime to get an updated measurement of PM2.5 or PM10 concentration readings. (It takes approximate 10-12s to detect, the readings indicated by blinking PM2.5/PM10 icon.)

  • Operated by batteries
    When powered by batteries, it’s detecting every 10 minutes by default. To maximize the battery life, user can also change the detection interval from 10 minutes to 20 or 30 minutes.

  • Setting default measurement interval

  1. Press and hold [ CHECK ] for 2 seconds until the display is flashing
  2. Press [ MODE ] to choose which interval time.
  3. The setting sequence: 10m 20m  30m
  4. Press [ CHECK ] to finish the setting and back to normal display.

PM2.5/PM10 CONCENTRATION

For easy visualization of air quality, the device spreads the concentration readings over 6 level scale.

The following provides some gives health guidelines on activities between good and hazardous air quality*:

PM2.5| PM10| Healthy persons| Elderly, Children, Pregnant

women

| Persons with chronic

disease or heart disease

---|---|---|---|---
0~35| 0~50| Continue with normal activities| Continue with normal activities| Continue with normal activities
36~53| 51~75| Continue with normal activities| Continue with normal activities| Continue with normal activities
54~70| 76~100| Reduce prolonged or strenuous outdoor physical exertion| Minimize prolonged or strenuous outdoor physical

exertion

| Minimize prolonged or strenuous outdoor physical

exertion

71~150| 101~350| Avoid prolonged or strenuous

outdoor physical exertion

| Minimize outdoor activity| Avoid outdoor activity
151~250| 351~420| Minimize outdoor activity| Avoid outdoor activity| Avoid outdoor activity
251+| 420+| Avoid outdoor activity| Avoid outdoor activity| Avoid outdoor activity

Always consult/check with your doctors for any medical advice concerning the air quality and your health

Note:
This 6 level scale of PM2.5 / PM10 concentration is not the same as Air Quality Index (AQI).

BATTERY POWER STATUS

The device is powered by rechargeable batteries, and comes with battery power indicator. The battery life of the device from fully charged batteries is determined by the number of detections it performed, either through set intervals or manually activated by user.

When battery power fails to below 20%, user should recharge the batteries by connecting to a USB port using the cable provided.

Note:
When the wireless PM2.5/PM10 air quality sensor’s battery power is below 20%, its detection function will temporary suspension.

CHARGING THE BATTERIES

You can use the micro USB cable to charge the wireless PM2.5/PM10 sensor if the battery states show in “Low battery”. When Micro USB port plug in the micro USB cable for charging, the LCD will display and flashing battery icon.

Note:

  • Charged to full capacity from <20% battery power status require 24 hours.

REPLACE THE RECHARGEABLE BATTERIES

Over time, the batteries may degrade in terms of holding the highest capacity for which it was designed for. If you find the device’s battery power is not lasting as it used to be, it’s probably a good time to change them.

  1. Unscrew and remove the battery door of sensor with a screwdriver.
  2. Pull the black ribbon lying under the batteries. All batteries can be removed together.
  3. Insert new 3 x AA size rechargeable batteries into the battery compartment according to the polarity mark inside battery compartment.
  4. Screw the battery door compartment on tightly.
  5. After inserting batteries, all LCD segment will be shown for 1 second.

PAIRING WIRELESS SENSOR TO CONSOLE DISPLAY

This Wireless PM2.5/PM10 Air Quality Sensor can connect to the Air Quality Display console.

  1. After the wireless air quality sensor is switched on, it will automatically enter registration mode for 10 minutes until which it can be paired by the display console.
  2. Once the connection is successful, the signal strength indication and PM2.5/PM10 information will appear on the display console.

Note:

  • If you need to re-assign the sensor channel, slide the channel slide switch to the new channel position, then use a pin to press [ RESET ] key to restart the sensor.
  • To avoid the sensor(s) and console pairing failure during new channel number assigned and setup, please power up the sensor(s) first, and then press [ SENSOR ] key on the main unit.
  • After connected to the console display, the reading will transmit every 12 seconds in the first 5 minutes. Every reading transmission, the symbol of signal transmission , will flash 0.5 seconds at once.

DATA TRANSMISSION

The device transmits its updated reading at fixed interval of 60 seconds to the paired console receiver.

RESET THE SENSOR

In case of malfunction, use a pin to press the [ RESET ] button to reset the sensor.

SENSOR INSTALLATION

The sensor is designed for desktop or wall mount for easy viewing. Follow the guidelines below for the sensor placement.

  1. Choose an open area away from any emissions source of pollutants, heat source, or with air flow greater than 1m/s.
  2. Place the wireless PM2.5/PM10 sensor at least 1.5m to 4m above the ground to better illustrate the detection of air quality in the human breathing zone.
  3. Do not expose the sensor to direct sunlight.

Wall mounting

Sensor can be mounted on the wall at different angle, either at slant angle or vertically with the mounting adapter (included).

Place a screw on the wall where you wish to hang for sensor. Hang the sensor on to the screw with or without the mounting adaptor.

Note:
Higher siting may also be appropriate if the sensor is representative of a large area.

AIR QUALITY MONITOR

  1. LCD display
  2. [ MODE ] key
  3. [ SNOOZE / LIGHT ] key
  4. [ MAX ] key
  5. [ TIME SET ] key
  6. [ ALARM ] key
  7. Wall mounting holder
  8. [ ALERT ] key
  9. [ DOWN ] key
  10. [ UP / CH ] key
  11. [ PM2.5 / PM10 ] sliding switch
  12. [ RCC ] key
  13. [ RESET ] key
  14. [ SENSOR ] key
  15. Battery compartment

LCD DISPLAY

  1. Wireless sensor channel number
  2. PM2.5 or PM10 display mode
  3. AQI alert on
  4. Air Quality Index (AQI)
  5. Time with alarm
  6. Current PM2.5 / PM10 concentration value
  7. 1 hour Maximum PM2.5 / PM10 concentration value
  8. Current AQI
  9. 1 hour Maximum AQI value
  10. Indoor temperature & humidity

GETTING STARTED

  1. Open the battery compartment door.
  2. Insert 2 x AA size batteries into the battery compartment. Make sure you insert them the right way according to the polarity information marked on the battery compartment.
  3. Close the battery compartment door.

Note:

  • If no display appears on the LCD after installing the batteries, press the [ RESET ] key by using a pin.
  • After 5 minutes channel searching, it will turn to RCC signal reception automatically.
  • You may not receive the RCC and wireless sensor(s) signal immediately. Due to the atmospheric disturbance, the best reception often occurs during night time.

PAIRING THE WIRELESS SENSOR

  1. Make sure the Air Quality sensor is in registration mode (by pressing [ RESET]).
  2. Press [ SENSOR ] in the display console to start pairing with the Air Quality sensor as indicated by blinking
  3. Once the connection is successful, the sensor(s) signal strength indication will appear on the air quality monitor.

WIRELESS SENSOR SIGNAL INDICATOR

The main unit display signal strength of the wireless sensor(s), as shown below:

Note:

  • If no signal received, the PM2.5 / PM10 will display “—” for the corresponding channel.
  • If the signal has discontinued and does not recover within 1 hour. The PM2.5 / PM10 will display “Er” for the corresponding channel.
  • To reconnect, move the sensor closer to the display console, or press [ SENSOR ] for the display console to enter signal searching mode.

TIME SETTING

The time on the display console can be set manually or synchronized to local time with reception of the radio-controlled signal.
RECEPTION OF RADIO-CONTROLLED SIGNAL
The clock can automatically synchronize its time with the time signal transmitted from Germany (DCF77) or UK (MSF).
When used for the first time (after inserting the batteries or pressing the [ RESET ] key), the clock will start to receive the RCC signal after 5 minutes with the signal indicator flashing. You can also press [ RCC ] key to receive the RC signal once.
RCC SIGNAL INDICATOR
The signal indicator shows the reception quality of the radio-signal as shown below:

Note:

  • Every day the wireless sensor will automatically search for the time signal at 2:00, 3:00, 4:00 and 17:00.
  • Always place the unit away from interfering sources such as TV set, computer, etc.
  • Avoid placing the unit on or next to metal plate.
  • Closed area such as airport basement, tower block or factory is not recommended.
  • Do not start reception on a moving article such as vehicle or train.
  • User can permanently disable or enable the RC function by press and hold the [ RCC ] key for 8 seconds.

DISABLE/ENABLE RCC SIGNAL RECEPTION

  1. Press [RCC] to disable the reception.
  2. Press [RCC] to enable automatic RCC reception.

DAYLIGHT SAVING TIME (DST)
This clock has been programmed to automatically switch when daylight saving time is in effect. User can disable the DST function in time and calendar setting mode.
Note:
DST AUTO/OFF setting only available when RCC function is ON.

MANUALLY TIME SETTING / TIME ZONE SELECTION

  1. In normal mode, press and holdkey for 2 seconds to enter date and time setting mode.
  2. Press [ ] or [ / CH ] key to adjust the setting.
  3. Press [ ] key to enter the next setting.
  4. The setting sequence: 12/24 format OFF
  5. Press [ ] key or leave the unit for 60 seconds to complete the setting and return to normal mode.

Note:
In setting mode, press and hold key for 2 seconds to quit time setting mode and return to normal mode.

PARTICULATE MATTER(PM2.5 / PM10) AND AIR QUALITY INDEX(AQI)

The device displays the maximum micrometer(µm) per cubic meter(m3) of PM2.5 / PM10 and AQI within 1 hour or 24 hours, and the maximum accumulated micrometer(µm) per cubic meter(m3) of PM2.5 or PM10 from the console power on. This device also displays the instant and 24hours average data of PM2.5/PM10 and AQI. All the database on current PM2.5 / PM10 is updated every 1 minute.

TO CHOOSE PM2.5 OR PM10 DISPLAY

  1.  Slide switch to display PM2.5 display mode.
  2. Slide switch to change PM10 display mode.

TO VIEW MAXIMUM READING

Press [MAX] button to toggle between:

Maximum Description
1h MAX (default) Display the maximum reading of past 1 hour
24h MAX Display the maximum reading of past 24 hour
Max Display the maximum reading since the last reset / memory clear

Note:
Press and hold the [MAX] button for 2 seconds to clear the memory.

TO VIEW 24 HOUR AVERAGE READING
Press the [MODE] button to toggle between normal display and 24-hour average.

AIR QUALITY INDEX (AQI)

AQI Is a yardstick that runs from 0 to 500. The higher the AQI value, the greater the level of air pollution and greater the health concern. This is determined by the PM2.5 or PM10 sensor’s air quality data.

AQI Warning General Health Effects
0~50 Good Air quality is satisfactory, and air pollution poses little or no

risk.
51~100| Moderate| Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
101~150| Poor| Members of sensitive groups may experience health effects. The general public is less likely to be affected.
151~200| Unhealthy| Some members of the general public may experience health effects; members of sensitive groups may experience more serious health effects.
201~300| Severe| Health alert: The risk of health effects is increased for everyone.
301~500| Hazardous| Health warning of emergency conditions: everyone is more likely to be affected.

AQI ALERT SETTING

AQI Alert can alert you the high AQI level based on instant AQI or 24 hour average AQI. Once the alert criterion is met, the alarm sound will activate and the LCD’s alert icon will flash.

TO SET ALERT

  1. In normal mode, press or to select the desired channel for setting the AQI alert.
  2. Press and hold the key to enter alert setting mode.
  3. Press or key to adjust the alert value, press and hold the key for changing value rapidly. (Setting range: 0~500, default 100)
  4. Press the key to activate/deactivate the alert function.
  5. Press key to quit the alert setting mode.

NOTE:

In alert setting mode, the unit will automatically exit alert setting mode and return to normal mode if no button is pressed in 30 seconds.
TO SILENCE THE ALERT ALARM
Press the [ SNOOZE / LIGHT ] key to silence the alert alarm. After 1 minute, the alarm will turn off by itself.

NOTE:

  • Once the alert is triggered, the alarm will sound for 1 minute and the alert icon and readings will be flashing.
  • If the alert alarm is automatically off after 1 minute, the alert icon and readings will still keep flashing until the AQI reading is below of the alert level set.
  • The AQI alert will sound again when the AQI readings rise above the alert level again
VIEW OTHER CHANNELS OF AIR QUALITY SENSOR

(OPTIONAL FEATURE WITH ADD ON EXTRA SENSORS)
This console is capable of paring up to 4 wireless air quality sensors. If you have 2 or more sensors, you can press the [ CHANNEL ] key to switch between different channels in normal mode. Press and hold the [ CHANNEL ] key for 2 seconds to enter auto-cycle mode to toggle the display of different channels at 4 seconds intervals. During auto-cycle mode, the icon will appear next to the channel number on the display. Press the [ CHANNEL ] key to stop auto cycle and display the current channel.

ALARM TIME SETTING

  1. In normal mode, press and hold key for 2 seconds to enter alarm time setting mode.
  2. Press [ / CH ] or key to set the hours, and press the key to proceed.
  3. Press [ / CH ] or [key to set the minutes, and press key to exit the setup.

Note:

  • During alarm setting mode, press and hold [ ] key for 2 seconds to exit setting directly.
  • During setting, press and hold [ / CH ] or [ ] key to fast forward or fast backward.
  • The alarm function will turn on automatically once you set the alarm time.

ACTIVATING ALARM

In normal mode, press the key to activate the alarm function and show the alarm time for 5 seconds, or press the key twice to close the alarm function.

When the clock reaches the alarm time, the alarm sound will start. Where it can be stopped by the following operation:

  • Auto-stop after 1 minute alarming if without any operation and the alarm will activate again in the next day.

  • By pressing the [ SNOOZE / LIGHT ] key to enter snooze that the alarm will sound again after 5 minutes.

  • In snooze mode or alarm sound, by pressing and holding the [ SNOOZE / LIGHT ] key for 2 seconds to stop the alarm and snooze mode. The alarm will activate again in the next day.

  • By pressing a key to stopping the alarm and the alarm will activate again in the next day.
    Note:

  • The snooze could be used continuously in 24 hours.

  • During the snooze, the alarm icon “ ” will keep flashing.

USE THE LCD BACKLIGHT

In normal mode, press the [ SNOOZE / LIGHT ] key to turn on the backlight for 5 seconds.

SPECIFICATIONS

WIRELESS PM2.5/PM10 AIR QUALITY SENSOR

Dimensions (W x H x D)| 82 x 120.5 x 41mm (3.2 x 4.7 x 1.6 in)


Main power

| •   3 x AA size 1.2V NiMH rechargeable batteries

•   USB charging (5V1A)

•   1m/1.2m USB charging cable included

Operating temperature range| -10°C to 40°C ( -14°F to 140°F )
Operating humidity range| RH 1% to 90 %
PM2.5/pm10 Unit| ug/m³
RF frequency| 868MHz
RF transmission range| 100 meters (300 feet) line of sight
Number of channels| 4 (CH1~4)
Detection interval| 1 minute, 10 minutes (default), 20 minutes, 30 minutes
Transmission interval| 60 seconds



Mass concentration precision

| PM2.5:

•   ±15 μg/m³ @ 0 to 100 μg/m³ (at 25°C)

•   ±15% @ 100 to 1000 μg/m³ (at 25°C ±5°C )

PM10:

•   ±30 μg/m³ @ 0 to 100 μg/m³ (at 25°C)

•   ±30% @ 100 to 1000 μg/m³ (at 25°C ±5°C )

Mass concentration range| 1 to 1000 μg/m³
Mass concentration resolution| 1 μg/m³
Particle detection size range| •   Mass concentration: PM2.5 and PM10

•   Number concentration: PM2.5 and PM10

Lower limit of detection| 0.3 μm
AIR QUALITY MONITOR|
Dimensions (W x H x D)| 90 x 103.5 x 34.5 mm (size exclude table stand)
Main power| 2 x AA size 1.5V batteries
Operating temperature range| -5°C to 50°C ( 23°F to 122°F )
Temperature display range| -40°C to 70°C (-40°F to 158°F)
Humidity display range| RH 1% to 99 %
Resolution of temperature| 1 decimal place (°C/°F)
Resolution of humidity| 1%
Support sensors| Up to 4 wireless PM2.5/PM10 air quality sensor

DISPOSAL

Dispose of the packaging materials properly, according to their types, such as paper or cardboard. Contact your local waste disposal service or environmental authority for information on the proper disposal. Do not dispose of electronic devices in the household garbage!
As per the Directive 2002/96/EC of the European Parliament on waste electrical and electronic equipment and its adaptation into German law, used electronic devices must be collected separately and recycled in an environmentally friendly manner. In accordance with the regulations concerning batteries and rechargeable batteries, disposing of them in normal household waste is explicitly forbidden. Please make sure to dispose of your used batteries as required by law — at a local collection point or in the retail market. Disposal in domestic waste violates the Battery Directive. Batteries that contain toxins are marked with a sign and a chemical symbol.

WARRANTY & SERVICE

The regular guarantee period is 5 years and begins on the day of purchase. You can consult the full guarantee terms and details of our services at www.bresser.de/warranty_terms.

References

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