Kimo KH 30 User Manual

1. Quick Start Guide

Thank you for choosing a KH 30 product. For a quick installation, the following quick start guide is available:

• Install Kimo Track and connect to your KH 30.

More advanced operations such as setting up and starting a new record are detailed later in this manual.

1.1 Install Kimo Track and connect to your KH 30

1. Install the Kimo Track application

   Available on Google Play and the App Store.

   Get it on Google Play

   Download on the App Store

2. Launch the application and connect your KH 30 module by scanning the QR code on the module

   In order to activate the Bluetooth features, the application asks for permissions when it first starts. It is necessary to accept all the authorizations for the application to work properly.

3. Congratulations! You have access to your KH 30!

   Take advantage of its many features:

   • Access the history of the measurements recorded on the KH 30.
   • Locate your KH 30 by flashing it.
   • Share the history of measurements.

   Example of displayed data: Temperature 23.44°C, Dew Point 11.25°C, Battery: Full, Current Recording Start Time: 17/03/2008 9:17, Duration: 1 month, Points: 8487600.

2. Technology

2.1 Overview of the technology

The KH 30 is a compact temperature and humidity data logger that can record regular data over long periods of time in a secure manner. It has a battery life of up to 8 years. The Bluetooth Low Energy communication allows consultation or retrieval of data with a smartphone and the application "Kimo Track".

Features:

• Data recording
• Sealed shell
• Easy to attach
• High precision temperature and humidity sensor
• LED indication and identification
• Integrated battery, battery life up to 8 years

2.2 Use cases

The KH 30 allows monitoring of the environment during storage or transport of any material sensitive to temperature and/or humidity. The data logging enables tracking the history of environmental evolution to determine if the material has been exposed to critical conditions.

Common uses include:

• Transport and storage of perishable goods (food, wine, etc.).
• Transport and storage of sensitive products (medical, biological, etc.).
• Transport and storage of precious objects (furniture, paintings, musical instruments, etc.).
• Wireless measurement in sealed containers (laboratories, R&D, etc.).

3. Characteristics

3.1 Dimensions

Dimensions: 31.8 mm / 1.16/64" (height), 24 mm / 60/64" (width), 11.5 mm / 29/64" (depth), 3.5 mm / 9/64" (mounting hole diameter).

3.2 Lifetime

The KH 30 is optimized for low consumption with a non-removable battery providing up to 8 years of life, depending on usage and conditions. Standard conditions examples:

• Autonomy of 3.5 years with one measurement per second.
• Autonomy of 8 years with one measurement every 10 seconds.

More frequent measurements decrease autonomy. Active Bluetooth connection and operating outside indicated temperature ranges also reduce autonomy.

3.3 Memory

The KH 30 uses a specific algorithm to compress recorded data. It can store a minimum of 172,000 humidity and temperature measurement points, equivalent to a 120-day history at one measurement per minute. Optimal data compression occurs when variations between points are within -0.20/+0.15 %RH and -0.35/+0.30 °C. The number of points can reach up to 516,000 within these ranges.

3.4 Measuring capacities and range of use KH 30

Using KH 30 outside the indicated temperature range may alter its operation, cause irreversible damage, and/or significantly reduce its lifespan.

Technical specifications

General features

• Battery: Button cell: CR2450 (non-replaceable)
• Standards & Directives: 2014/53/EU; EMV 2014/30/EU; RoHS 3; Reach
• Protection: IP 68
• Autonomy in standard conditions (with a 540 mAh battery): 3.5 years with 1 measurement per second, 8 years with 1 measurement every 10 seconds.
• Recording capacity: Temperature on 11 bits, res. 0.09 °C / Humidity on 11 bits, res. 0.06%: Min. 172,000 temperature/humidity recordings. 120-day history with one measurement per minute.
• Operating conditions: -40 to 70 °C / -40 to 158 °F. Working pressure (experimental laboratory tests): Working altitude: 0 to +2000 m / 0 to +2188 yd. Working absolute pressure: 0.05 MPa to 2 MPa (20 Bar). Typical RH error with absolute air pressure: 0.05 MPa to 0.3 MPa (3 bars): -0.35%/MPa (-0.035%/bar). 0.3 MPa to 2 MPa (20 bars): -0.49%/MPa (-0.049%/bar).
• Storage temperature: -40 to 70 °C / -40 to 158 °F
• Bluetooth: Frequency band: Bluetooth LE 2402MHz to 2480MHz ISM Band. Maximum RF output power: < 4 dBm.

Graphical representation of tolerances:

• Humidity tolerance graph showing typical and maximum tolerance ranges relative to relative humidity.
• Temperature tolerance graph showing typical and maximum tolerance ranges relative to temperature.

3.5 Bluetooth communication

The KH 30 features Bluetooth 5.0 Low Energy, compatible with all smartphones using this standard via the "Kimo Track" application. The maximum connection range is 10 meters / 32' without obstacles.

3.6 Labels

Each KH 30 has three labels: a small integrated label (24x12 mm) on the module, a medium label (36x12 mm) on the packaging box, and a large label (31x36 mm) for user use. These labels contain a QR code with the KH 30 serial number, facilitating connection with the Kimo Track application.

Module Label (24x12 mm)

Contains KH30, CE, 9A-9D, and serial number.

Interior Label (31x36 mm)

Contains KH30, CE, 9A-9D, and serial number.

Box Label (36x12 mm)

Contains KH30, CE, 9A-9D, and serial number.

3.7 Packaging

The module is packed in a cardboard box (14x40.5x35 mm) with the KH 30 logo and a QR code. The package includes: 1x KH 30 module, 1x Sticker 31x36 mm with the serial number. The box also has a label with the serial number.

3.8 Installation

The KH 30 should ideally be installed against a vertical wall or ceiling, fixed with one or two screws (not included). Avoid placing the module flat, as dust can settle on the sensor and distort measurements. Ensure the temperature and humidity sensor opening is not covered. Inaccurate measurements may occur if the module is placed upside down or if the sensor opening is obstructed.

3.8.1 Usage Instructions and Limitations

Humidity and temperature sensors require special care due to their susceptibility to pollutants like volatile chemicals, acids, and cleaning agents. Exposure to Ketenes, Acetone, Ethanol, Isopropyl Alcohol, Toluene, etc., can cause irreversible drift.

• Avoid exposing the sensor to pollutants, especially volatile chemicals.
• Be aware of chemicals in epoxies, glues, adhesives, and plastics that may affect the sensor.
• Avoid exposure to acids and bases (HCl H2SO4, HNO3, NH3) and high concentrations of ozone or H2O2.
• Avoid contact with cleaning agents and strong air blasts.
• Ensure good ventilation to avoid high concentrations of volatile chemicals.

When packaging sensors, use materials that do not outgas. Antistatic shielded ESD bags, paper, cardboard, and deep-drawn plastic trays (PE, PET, PP) are suitable. Avoid antistatic polyethylene bags, bubble foils, and foams. Be cautious with stickers inside packaging; use minimal size and ensure full adhesion.

Materials emitting strong odors should not be used. Even recommended materials may contain additives that could pollute the sensor.

4. Kimo Track

4.1 Downloading and installation

The "Kimo Track" application is available on Google Play (Android) and the App Store (iOS).

Google Play Link

App Store Link

Accept all necessary permissions for the application to function correctly.

4.2 Symbols

4.3 Application pages

The Kimo Track application is divided into three groups of pages:

• Home page: Allows searching for KH 30 in your vicinity and initiating a connection.
• Device page: Allows viewing the status of the KH 30, current measurements, and history.
• Parameters pages: Allows setting up the KH 30, including recording parameters (measurement interval) and access settings.

4.3.1 Home Page

The Home page allows you to start searching for KH 30 in your vicinity and initiate a connection with one of them. It displays information about the application, a list of nearby KH 30 devices, and options for Bluetooth scanning and QR code scanning for pairing.

4.3.2 Device page

The Device page provides an overview of the current data record and the status of the recording. It displays the local name of the KH 30, current temperature and humidity values with tolerances, battery status, and recording details. Options include consulting history, locating the KH 30, and sharing the current recording.

The Kimo Track application connects to one KH 30 at a time.

Measurement tolerances are typical and depend on the absolute value and time.

A horizontal slide on humidity displays the dew point.

The share button allows downloading data in .csv format via email.

4.3.3 Parameter pages

Measurement parameters

The "Measurements" parameter page allows starting a new recording sequence. You can set the time interval between measurements and the behavior in case of full memory. The measurement interval affects the KH 30's lifetime and the duration of the recorded history.

Measurement interval: Defines the time between measurements in seconds. A smaller interval provides a finer view of history but decreases standby time and increases consumption.

Example of interval impact:

Stop recording if memory full

This parameter defines the KH 30's behavior when memory is full. By default, it overwrites the oldest measurements. Activating "Stop recording if memory full" preserves all measurements.

KH 30 location

Pressing the location button makes the KH 30's indicator LED flash three times.

Dew point calculation

The dew point is calculated using the following formula (approximation of Heinrich Gustav Magnus-Tetens):

T_dp = [ T * ( ln(RH/100) + (b*T)/(c+T) ) ] / [ b - ln(RH/100) - (b*T)/(c+T) ]

Where:

• T_dp = Dew point [°C]
• T = Temperature [°C]
• RH = Relative Humidity [%]
• b = 17.62
• c = 243.12 [°C]

Alarm settings

The "Alarm" parameter page allows setting upper and lower limits for temperature and humidity. Exceeding these limits triggers an "alert" mode, indicated by the KH 30 LED flashing twice every 5 seconds, and temperature/humidity values appearing in red in the device list and on the Device page.

Information settings

The "Information" parameter page allows identifying and updating the KH 30. You can rename the KH 30 (up to 16 characters, with automatic replacement of ## with serial number values), view the module name, ID, versions (Kimo KH 30 application, firmware, hardware), and update the firmware.

Setting limits to maximum values (-46°C, +128°C, 0%RH, 100%RH) disables the alarm system.

Updating firmware requires the application to run constantly. Data from the current recording may be lost during an update.

4.4 Features

4.4.1 Start a new recording

When a new recording sequence starts, all previously stored measurements on the KH 30 become inaccessible.

When starting a new recording, you can set the measurement interval and the behavior in case of full memory.

4.4.2 Sharing the recording by email

Data collected by KH 30 can be retrieved and sent by email for further processing. A .csv file is transmitted, using a semicolon as a delimiter. The file structure includes recording information, limits, and values.

Example of the structure of the .csv file

Recording information

Limits

Values

5. Standards and safety

Observe safety instructions for proper use, accident prevention, user protection, and device durability.

5.1 Safety

5.1.1 Children

Keep KH 30 out of reach of children. Small items can be a choking hazard if swallowed. Store the product in a safe place when not in use.

[Keep out of reach of children icon]

5.1.2 Recycling

Follow proper recycling practices. Return products to the supplier or recycle them whole. They can be recycled with household batteries or smartphone/laptop accumulators. Collection points and procedures vary by country.

5.2 Materials and conception

The KH 30 is designed for waterproofness, vibration resistance, food compatibility, and data integrity. It cannot be disassembled, complying with directives 2012/19/EU #21 and 2006/66/CE art. 11. Its reduced volume and weight minimize ecological impact.

5.2.1 Batteries

KH 30 products use a 3V CR2450 button cell (approx. 500 mAh). Typical battery life is around 5 years, but can range from 2 to 10 years depending on configuration.

5.2.2 Plastic and resin

The KH 30 is manufactured from selected materials for robustness and durability. The shell is made from PBT (Polybutylene Terephthalate) plastic (Celanex 2401/MT Natural grade). The resin molded into the shell is a two-component Epoxy resin compliant with European food standards (EU) 10/2011 and 2020/1245.

5.3 IP68

KH 30 products comply with IP68 protection rating: