MERRYIOT CD10 Air Quality Carbon Dioxide Sensor Owner’s Manual

Air Quality Carbon Dioxide Sensor
Owner’s Manual

Reference Manual| CD10-915
CD10-868
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Description

The MerryIoT Air Quality CO2 is designed for in-home and in-building usage for consumer or facility management applications. The design is optimized for high volume manufacturing, optimal battery lifetime, and pleasing aesthetics for in-building placement.

Specifications

2.1 Mechanical

2.1.1 Sensor

2.2 Environmental

2.3 Power

2.4 Radio

2.5 User Interface

2.6 Certifications and Conformity

2.7 Additional Features
Battery Monitoring

Operation

3.1 Installation Mode

• Users need to press the button over 5 seconds to activate the operation into installation mode. When the Sensor tries to join the network, it will keep blinking the yellow LED for 3 seconds.
• Once the sensor joins the network, the yellow LED will keep on for 3 seconds and send an uplink with a CO2 value of
• Users can press the button for over 5 seconds to try to join the network

3.2  Default Operation

• During default operation the device will send a message to the network anytime there is a sufficient delta in the environmental conditions
  • CO2 over the threshold (Buzzer alarm)
  • Button pressed (No buzzer alarm)
  • Keepalive message (No buzzer alarm)
• The precise trigger values can be found in 1.2.
• Users can press the button to send a test message to the
• When the user waves in front of the sensor, the LEDs will show the CO2 status as below for 5 seconds. (Table 1). Default
• The device will send a message that it has been inactive for 60
• The device will detect the environment every 5
• While in default mode the device will flash the yellow LED 3 times within 100ms only when the user presses the test button.

Table 1. CO2 Air Quality LED indicator

Messages

LoRaWAN Packets for this device use port 127
4..1  Status

4.1.1 Triggers
CO2 Sensor Packet Triggers:

• 60-minute inactivity

• CO2 > 1000 ppm

• The device will scan the environment every 5 minutes.
  Button Pressed Trigger:

  • Immediately send a message with Temp, RH values, and CO2 as 0 within the first 5 minutes after
  • Immediately send a message with Temp, RH, and CO2 values with the last time reading after joining for more than 5 minutes

4.1.2 Payload

0 – Keepalive
1 – Button pressed, 0 – Button released
RFU
RFU
1 – CO2 is over the threshold (CO2 > 1200 ppm) RFU
---|---|---
Battery| Battery level
Bits [3:0]
Bits [7:4]| unsigned value ν, range 0 – 15. battery voltage in V = (21 + ν) ÷ 10. RFU
Temp| Environment Temperature
Bits [7:0]| sign integer temperature in °C -20~50 °C
RH| Relative humidity as measured by the digital sensor
Bits [6:0] Bit [7]| unsigned value in %, range 0-100. RFU

CO 2

| CO2 equivalent estimate
Bits [15:0]| Estimation of the CO2 level in ppm.

Battery

2.1  Replacement

****Use ER14505 (3.6V AA Li-SOCI2) only.
Remove the battery cover and replace the batteries. (cross-slot screwdriver required).

5.2   Cautions
CAUTION: Disposal of a battery (or battery pack) into a fire or a hot oven, or mechanically crushing or cutting of a battery (or battery pack) can result in an EXPLOSION!
Leaving a battery (or battery pack) in an extremely high temperature surrounding environment can result in an EXPLOSION or leakage of flammable liquid or gas.
A battery (or battery pack) subjected to extremely low air pressure may also result in an EXPLOSION or leakage of flammable liquid or gas.
Discard used batteries according to the manufacturer’s instructions. CAUTION: The unit is provided with a battery-powered circuit.
There is a danger of explosion if the battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instructions.
Risk of Explosion if Battery is replaced by an Incorrect Type. Dispose of Used Batteries according to the Instructions.

Label format information

Device back label

6.1.1  All QR code
URN:LW:D0: 0016160000000003:0016160000XXXXXX:01632001
The total maximum resulting character sentence is 48 alphanumeric characters long.
6.1.1.1   JoinEUI
900MHz: 0016160000000003. (US)
800MHz: 0016160000000004. (EU)
Uses a hexadecimal representation resulting in 16 characters.
6.1.1.2   DevEUI
0016160000XXXXXX.
Uses a hexadecimal representation resulting in 16 characters
6.1.1.3   ProfileID
The profile identifier encodes a Vendor Identifier and a Vendor Profile Identifier as a hexadecimal representation resulting in 8 characters.
6.1.1.3.1 VendorID
0163
VendorID is assigned by the LoRa Alliance.
6.1.1.3.2.VendorProfileID
900MHz: 2001 (US)
800MHz: 3001 (EU)
6.1.2  Serial Number
SN: CD10915XXXXXX
Not including in QR code.
6.1.3  Model Name
MODEL: CD10.
Fixed code, not including in QR code
6.1.1  FCC ID
2AAS9CD10
6.1.2  IC ID
26296-CD10
6.1.3  Caution!
For more information, please refer to chapter 5.2. and 10.
6.2.  Packaging label

GS1 DataMatrix

• The GS1 Application Identifier (21) indicates that the GS1 Application Identifier data field contains a serial
• The GS1 Application Identifier (92) assigned to the company’s internal information is

Barcode (Code 128) SKU No.:
SEN-000104-915
*NOTE: different SKU with different numbers.

Important Product & Safety Instructions

For the most current and more detailed information about Browan features and settings as well as safety instructions, please download the user manual for the products online at www.browan.com before the use of any Browan products or services.
Certain sensors contain magnets. Keep away from ALL
Children! Do not put it in your nose or mouth. Swallowed magnets can stick to intestines causing serious injury or death. Seek immediate medical attention if magnets are swallowed.
These products are not toys and contain small parts that can be dangerous to children under 3 years old. Do not allow children or pets to play with products.
Observe proper precautions when handling batteries. Batteries may leak or explode if improperly handled.
Observe the following precautions to avoid a sensor explosion or fire:

• Do not drop, disassemble, open, crush, bend, deform, puncture, shred, microwave, incinerate, or paint the sensors, Hub, or other hardware.
• Do not insert foreign objects into any opening on the sensors or Hub, such as the USB port.
• Do not use the hardware if it has been damaged—for example, if cracked, punctured, or harmed by water.
• Disassembling or puncturing the battery (whether integrated or removable) can cause an explosion or fire.
• Do not dry the sensors or battery with an external heat source such as a microwave oven or hairdryer.

Warnings

• Do not place naked flame sources, such as lighted candles, on or near the equipment.
• The battery shall not be exposed to excessive heat such as sunshine, fire, or the like
• Do not dismantle, open or shred battery packs or cells
• Do not expose batteries to heat or fire. Avoid storage in direct sunlight.
• Do not short-circuit the battery. Do not store batteries in a box or drawer where they may short-circuit each other or be short-circuited by other metal objects.
• Do not remove a battery from its original packaging until required for use.
• Do not subject batteries to mechanical shock.
• In the event of a battery leaking, do not allow the liquid to come in contact with the skin or eyes. If contact has been made, wash the affected area with copious amounts of water, and seek medical advice.
• Do not use any charger other than that specifically provided for use with the equipment.
• Observe the plus (+) and minus (-) marks on the battery and equipment and ensure correct use.
• Do not use any which is not designed for use with the product.
• Do not mix cells of different manufacturers, capacity, size, or type within a device.
• Keep batteries out of the reach of children.
• Seek medical advice immediately if a battery has been swallowed.
• Always purchase the correct battery for the equipment.
• Keep batteries clean and dry.
• Wipe the battery terminals with a clean dry cloth if they become dirty

Notices

• Avoid exposing your sensors or batteries to very cold or very hot temperatures. Low or high-temperature conditions may temporarily shorten the battery life or cause the sensors to temporarily stop working.
• Take care in setting up the Hub Gateway and other hardware. Follow all installation instructions in the User Guide. Failure to do so may result in injury.
• Do not install hardware equipment while standing in water or with wet hands. Failure to do so can result in electric shock or death. Use caution when setting up all electronic equipment.
• When charging the sensors, do not handle the sensors with wet hands. Failure to observe this precaution could result in electric shock.
• PROP 65 WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm
• Cleaning Browan Products: Use a clean dry cloth or wipe to clean Browan products. Do not use detergent or abrasive materials to clean the Browan products, as this may damage the sensors.

Cautions

CAUTION: Disposal of a battery (or battery pack) into a fire or a hot oven, or mechanically crushing or cutting of a battery (or battery pack) can result in an EXPLOSION! Leaving a battery (or battery pack) in an extremely high temperature surrounding environment can result in an EXPLOSION or leakage of flammable liquid or gas.
A battery (or battery pack) subjected to extremely low air pressure may also result in an EXPLOSION or leakage of flammable liquid or gas.
Discard used batteries according to the manufacturer’s instructions.

CAUTION: The unit is provided with a battery-powered circuit.
There is a danger of EXPLOSION if the battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instructions.
Risk of EXPLOSION if Battery is replaced by an Incorrect Type. Dispose of Used Batteries According to the Instructions.

Regulatory

Hereby, Browan Communications Inc. declares that the radio equipment for Browan products complies with Directive 2014/53/EU.
This device complies with Part 15 of the FCC Rules and RSS Standards of Industry Canada. 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.
This symbol means that according to local laws and regulations your product should be disposed of separately from household waste. When this product reaches its end of life, take it to a collection point designated by local authorities. Some collection points accept products for free. The separate collection and recycling of your product at the time of disposal will help conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment.

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

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. 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.

IMPORTANT NOTE:
Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator & your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Country Code selection feature to be disabled for products marketed to the US/CANADA Operation of this device is restricted to indoor use only

11.2 Industry Canada statement:
This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science, and Economic Development Canada’s license-exempt RSS(s). Operation is subject to the following two conditions:

1. This device may not cause interference
2. This device must accept any interference, including interference that may cause undesired operation of the device.

Radiation Exposure Statement:
This equipment complies with Canadian radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance 20cm between the radiator & your body.

Configuration Downlink Command

12.1 Configuration Common

12.1.2 Payload

0x00 – Set keep-alive value & Detection Interval.
Keepalive default value: 12 => 125 min = 60 min Per unit: 5min
Value range: 1~216 (5min ~ 18hours)
Note: 0 means no changes
Detection Interval value (0 means no change): 5 minutes value range: 1~216 (5min ~ 18hours)
*Note: Must be shorter than or equal to keepalive
0x03 – Set buzzer alarm period(seconds) only for over CO2
threshold, Enable/Disable CO2 and Enable/Disable proximity sensor
Buzzer alarm period default: 3
CO2 Sensor default: Enable
Proximity Sensor default: Disable
0x04 – Set CO2 threshold
CO2 threshold default value:1000
value range: 400~65535
0x05 – Set CO2 Calibration Value.
default value :400
value range: 400~2000
Config| Configuration| 0~11 bytes

See the table as follows:

Keepalive value [8~15] Detection Interval (must be shorter than or equal to keep alive)| 2 bytes
| Note little-endian format.|
---|---|---
0x03| [0~5] Buzzer alarm period in seconds 0~63 seconds
[6]  Enable/Disable CO2 sensor 0: disable
1: enable(default)
[7]  Enable/Disable proximity sensor 0: disable (default) 1: enable| 1 byte
0x04| Set CO2 threshold
Note little-endian format.| 2 bytes
0x05| Set CO2 Calibration Value (400~2000 PPM)
Note little-endian format.| 2 bytes
Payload Content| Command content Ex:
000C01 || 0343 || 04E803 || 059001
00 0C01 => Set keep alive value: 0x0C -> 12 (5min) = 60 min (per unit:5min) ,
Detection Interval 0x01-> 1 (*5min) = 5 minutes (if 0 means no change)(per
unit:5min) 03 43 => Buzzer alarm period in 3 seconds, enable CO2 and disable proximity
sensor: 0x43
04 E803 => Set CO2 threshold: 0xE803 -> 1000
05 9001 => Set CO2 calibration: 0x9001 -> 400
06 05 => Set CO2 Detection Interval: 0x05 -> 5 minutes
---|---

12.2 Response Content
(Only for unconfirmed downlink)

Ex: 000C01 0343 04B004 0590 0605
00 0C01 => Set keep alive value: 0x0C -> 12 (5min) = 60 min (per unit:5min), , Detection Interval =1 5 minutes (if 0 means no change)(per unit:5min)
03  43 => Buzzer alarm period in 3 seconds, enable CO2 and disable proximity sensor: 0x43
04  E803 => Set CO2 threshold: 0xE803 -> 1000 05 9001 => Set CO2 calibration: 0x9001 -> 400 06 05 => Set CO2 Detection Interval: 0x05 -> 5

12.3 Frame Count 1 Content

Ex: 01 01200000 7ff1f102
01 => command ID
01200000 => HW ID: 0x00002001 (little-endian format)
7ff1f102 => FW Version: 0x02f1f17f (little-endian format)

BROWAN COMMUNICATIONS INC. All rights reserved.

References

• BROWAN COMMUNICATIONS INC.

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