MClimate CO2 Sensor and Notifier LoRaWAN® User Manual

Introduction

This manual provides comprehensive instructions for the MClimate CO2 Sensor and Notifier LoRaWAN®. It covers device specifications, safety, legal notices, compatibility, parts identification, CO2 calibration, LED indicators, commissioning, and installation guidelines.

For extended documentation, scan the QR code or visit: mclimate.eu/lorawan-resources

Need help? Contact: lorawan-support@mclimate.eu

Support Phone: 00359 800 3 1010 (Monday-Friday 09:00 - 18:00)

Manufacturer Address: Melissa Climate Jsc, Aleksandar Malinov Boulevard 31, Campus X, Building 2, floor 1, office 1-2, Sofia, Bulgaria.

What's Inside the Box

The package contains the MClimate CO2 Sensor and Notifier LoRaWAN® device.

Visual Description: The device is a compact, white, rectangular unit with ventilation slots on the sides. It features a status indicator LED and a button on the top surface.

Technical Specifications

• Description: MClimate CO2 Sensor and Notifier
• Model: MC-LW-CO2-01
• Dimensions: 80 x 80 x 20mm
• Weight: 107gr
• Frequency Range: 863÷870MHz
• LoRaWAN® Device Type: Class A End-device
• Power Supply: 2xAA batteries 1.5VDC
• Sensors: Built-in CO2 sensor, pressure sensor, temperature & humidity sensor
• Operating Temperature: 0°C to +60°C
• Material: ABS

Environmental Conditions for Operation:

• Indoor use only
• Altitude up to 2000m
• Ambient temperature: 0°C to +60°C
• Maximum relative humidity of 80% for temperatures up to 31°C, decreasing linearly to 25% at 50°C
• Environment with a degree of contamination 2 (PD2)

Storage and Transportation Conditions:

• Ambient temperature: -40°C to +85°C
• Relative humidity: 5% to 90% without condensation

Safety Instructions

⚠️ Please read the safety instructions before installing the device!

Failure to follow the recommended instructions in this manual may be dangerous or in violation of the law. The manufacturer, Melissa Climate Jsc., is not responsible for any loss or damage caused by failure to follow the instructions in the operating manual.

Legal Notices

All information, including but not limited to, features, functionality, and/or product specifications are subject to change without notice. MClimate retains all rights to review or update its products, software, or documentation without being required to notify any natural or legal person.

The MClimate and MClimate logo are trademarks of Melissa Climate Jsc. All other brands and product names mentioned herein are trademarks of their respective owners.

EU Declaration of Conformity

This device complies with the essential requirements and other applicable provisions of the following EU directives:

• 2014/53/EC
• EN 50491-3:2009
• EEU 300 220-1 V3.1.1:2017
• EEU 300 220-2 V3.1.1:2017
• EN 60950-1:2006+A11:2009 +A1:2010+A12:2011+A2:2013 + AC:2015
• EN 301 489-1 V2.1.1:2017

Compatibility

To operate the MClimate CO2 Sensor and Notifier LoRaWAN®, you will need:

• A LoRaWAN® network
• Batteries: 2xAA batteries 1.5VDC
• Device operating voltage: 2.7 - 3.6VDC

Device Parts

Visual Description (Assembled View): The top of the assembled device shows a status LED and a button. The sides have ventilation slots.

Visual Description (Disassembled View): The internal components are visible. Key parts include the batteries holder, the main circuit board with components like a buzzer, LED, and status button connections.

• Batteries Holder: For the 2xAA batteries.
• LED Status: Indicates device status.
• Status Button: Used for interaction or diagnostics.
• Buzzer: Provides acoustic alerts.

CO2 Calibration Mechanism and First Steps

IMPORTANT: Please read carefully to ensure accurate CO2 measurements.

Upon first power-up, the CO2 sensor performs auto-calibration for 2-8 hours. During this period, the device must be exposed to fresh air for at least 15 minutes after joining the LoRaWAN® network.

The MClimate CO2 Sensor and Notifier automatically recalibrates its sensor every 8 days using an ABC (Auto Baseline Correction) algorithm. This process sets the sensor to 400 ppm based on the lowest value sensed during the last period, requiring exposure to fresh air.

The sensor can also be manually calibrated.

Auto-calibration is beneficial for spaces not occupied 24/7. For constantly occupied spaces, consider disabling the auto-calibration function.

LED, Buttons, and Behaviour

When the button is pressed, the device indicates:

1. CO2 Level:

• Green: Good CO2 levels (less than 900ppm by default)
• Yellow: Medium CO2 levels (between 900ppm and 1500ppm)
• Red: Bad CO2 levels (greater than 1500ppm)

2. Connection Status:

• Constant indication: The device is connected to a LoRaWAN® network.
• Blinking indication: The device is NOT connected to a LoRaWAN® network. (Pattern: 800ms on, 800ms off).

⚠️ Warning: CO2 level thresholds and indication colors can be changed via a downlink command.

Acoustic Alarm:

The acoustic alarm activates for medium or bad CO2 levels. Default settings:

• Good: No alarm
• Medium: 1 short beep every 10 minutes
• Bad: 1 short beep every 10 minutes

⚠️ Warning: Acoustic notification behavior can be changed with a downlink command.

Commissioning

Step 1: Open your LoRaWAN® Network provider access panel and add the device using the supplied Serial Number, DevEUI, AppEUI (JoinEUI), and AppKey.

Visual Description: An example interface shows fields for Device ID (e.g., 9X7621HS), DevEUI (e.g., 70B3D25DD30009E1), AppEUI (e.g., 70B3D25DD3000000), and AppKey (e.g., a0658dfae72131saf1249abc11). A "Register" button is present.

Note: The data provided is an example and should not be used.

You can obtain DevEUI, AppEUI (JoinEUI), and AppKey information from the LoRaWAN® credentials .csv file provided with your fulfillment confirmation.

Step 2: Continue the installation following the instructions from your LoRaWAN® Network provider.

Step 3: To remove the frontal plastic cover, apply pressure on the bottom and top sides of the device and gently lift one of the sides.

Visual Description: An illustration shows how to apply pressure to the sides of the device to detach the front cover.

Step 4: After inserting the 2xAA 1.5VDC batteries, the device will automatically connect to the network. Check the LED, Buttons, and Behaviour section to confirm network connection.

Visual Description: An illustration shows the disassembled device with two AA batteries inserted into the battery holder.

Installation

We recommend installing the device in an open environment (not in a recess) at a height of 1.5m.

• Avoid installing near air vents, as this can negatively impact measurements.
• Avoid large metal parts, as they can degrade RF performance.

Mounting options:

• Use double-sided tape for attachment.
• Remove the frontal plastic cover and use screws for a more permanent installation.

We recommend orienting the device so that the QR code with the serial number is on the bottom-right side to ensure good measurements.

Visual Description: An illustration of the back of the device shows screw holes for mounting.