Oxygen Concentration Management in Underground Machine Room

This recipe measures the oxygen concentration level in underground workplaces and monitors the risk level from a distance.

This recipe is ideal for problems such as:

Conventional Monitoring of Oxygen Concentration

In underground facilities where production facilities use inert gas and large refrigerators use CFCs, gas leaks can occur without being noticed and can cause industrial accidents due to a lack of oxygen if adequate ventilation is not provided. It was indispensable to have regular walk-around checks to prevent such accidents.

There are limits and risks to walk-around checks by personnel…


Three Simple Steps to Introduction

Anyone can start using amnimo sense recipes quickly and easily.

STEP1 Purchase
STEP2 Installation
STEP3 Start

By introducing the Recipe for Monitoring of Oxygen Concentration in Underground Machine Room, it is possible to:


Monitor oxygen concentration from a distance.



Notify with a warning alert when the oxygen concentration level decreases.


It simplifies conventional walk-around checks and reduces the risks of industrial accidents due to a lack of oxygen and gas leakage.


Reduction in personnel expenses


Improved safety

amnimo sense
Recipe for Oxygen Concentration Management

–Schematic Diagram–

  • Real-time visualization
  • Accident prevention
  • Cost reduction

amnimo sense can be installed to suit any equipment environment.Combine amnimo sense with commercially available parts for easy installation.


Data is sent from the sensor and end-point devices.


LoRa arrow


Attach a sensor.


LTE arrow


Record and store oxygen concentration levels in the underground machine room in a database.



Customers can see oxygen concentration levels in the underground machine room on their computers and smartphones.

  • Please note that amnimo does not guarantee correct operation of amnimo sense in your environment.
    Please configure and use amnimo sense under your own responsibility.
  • The recipes developed as of May 2019 use LoRa endpoint devices with analog input.
  • The recipe should be regarded strictly as a sample case only. amnimo does not guarantee that it will solve your business issues.
  • The devices listed are produced by various manufacturers and are subject to discontinuation by the manufacturers at any time. amnimo does not guarantee the availability of the models listed.
  • Amnimo accepts no responsibility for incorrect operation of the recipe as configured by the customer, except where caused by a service error of amnimo.
  • If the recipe fails to operate as configured using equipment selected by the customer, amnimo offers no guarantee against, and accepts no responsibility for, incorrect operation.
  • Amnimo accepts no responsibility for cases in which cost, including the equipment listed in the recipe and amnimo's services, is higher than the customer anticipated.
  • Inquiries regarding recipe customization are not accepted by Amnimo.

Endpoint device

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  • picture1
You will need
  • One amnimo sense set(endpoint devices, gateway, communications, dashboard)

Subscribe amnimo sense
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*You can subscribe amnimo sense after account registration.
Please register your account at first.

Optional item
For 10 endpoint devices (measurement points)

  • Batteries (N alkali batteries) × 30(Or USB cable (Type C) × 1- + USB charging adapter × 10)
  • Wiring for connections × 40
    Recommended product
  • Monopole terminal board × 20
    Recommended product
  • Resistance of 250 Ohm × 10
    Recommended product
  • Oxygen Depletion Alarm × 10
    Recommended product
  • Endpoint storage case
    Recommended product
  • Cable glands
    Recommended product

iconThe amnimo sense set does not include sensors or parts. Please note that the companies that supply the sensors and parts used in this recipe cannot respond to inquiries regarding this recipe.

Procedure for using amnimo sense

Guide for procedures to implement recipes.

  1. You can subscribe amnimo sense after account registration.

  2. Gateways are activated first, followed by endpoint devices.


  3. Sensors, gateways and endpoint devices are wired up.


  4. Power is supplied to the endpoint devices to start up the system.


  5. Widget settings are established to display the data.


  6. For details please refer to the manual.

In addition to underground machine room, this recipe can be used in the following environments.



During deep underground excavation work, bubbles can erupt in nearby fields and rivers. These bubbles may be dangerous as they reduce oxygen levels. Simultaneous detection of these bubbles on-site and at remote locations is desired.


Oil tankers

There is a risk of gas leaking unnoticed from production equipment which uses inert gases to prevent explosions such as oil tankers. For this reason, management of oxygen levels is considered especially important.