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General

Challenging installations come in different forms. In general the following may pose challenges during installations

  1. The more objects, such as walls, doors, coolers etc., are occluding the direct line of sight between a logger and a gateway, the less wireless signal strength can be expected. 
  2. The further away the logger is from the next gateway, the less signal quality.
  3. Humidity in the environment. The more humid, the less signal quality.
  4. The more devices and machines that emit electromagnetic noise, the more likely they are to affect other wireless devices.

Unless there are specific problems, such as described in chapters "Problems" and "Challenging Environments" below, most issues can be solved by the following methods:

  1. Moving logger and gateway closer together.
  2. Moving obstacles and/or move logger/gateway to reduce effect of occluding objects between the devices.
  3. Try Controlant supported antennas with increased gain to increase signal quality
  4. Add a new gateway closer to the logger
  5. Aligning antennas of gateways and loggers parallel, as shown in the picture below.

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For further information on installation challenges with wireless devices, please refer to the page 1.3.1 General Wireless Setup

Problems

If logger is close to gateway and, under normal conditions, should communicate with gateway the following issuse might apply.

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Challenging environment

In some cases, users want to monitor in spaces where wireless connectivity is hard to ensure. In such cases, different installation methods can be used.

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FM Sunset

Problems

#

Problem

Symptom

Solution

1

The gateway doesn't connect to the Controlant cloud

The green LED indicator on the gateway ON for 3 sec and OFF for 0,5 sec or ON for 0,5 sec and OFF for 3 sec, see 1.3.4.4 Gateway LED light behavior

The User Interface indicates Data missing

Check if the gateway is connected to power, see 1.3.2 Quick Installation Guide - Gateway

Check if the Cellular antenna is fastened to the gateway, see 1.3.2 Quick Installation Guide - Gateway

Check the behavior of the LED light indicator on the gateway, see 1.3.4.4 Gateway LED light behavior

Check the cellular signal strength where the gateway is located, see 1.3.4.3 Gateway Cellular Connection

2

The gateway sometimes loses connection to the Controlant cloud

Data connection warning

Data missing in the User interface (Note the data is stored in the logger and it will be uploaded when it has a connection to the gateway)

It is likely that the gateway has a bad connection to the cellular network. Review the gateway location and installation, see 1.3.4 Device installation

3

Logger shows connection in the user interface

Data missing in the User interface (Note the data is stored in the logger and it will be uploaded when it has a connection to the gateway)


Check the location of the logger and make sure that the logger isn't surrounded by isolating materials such as metal, thick walls, liquid etc, see 1.3.4.1 Warehouse

Check the location of the gateway and the distribution of them, see 1.3.4.1 Warehouse

4

Logger sometimes loses connection to a gateway

Unnecessary data connection warnings

NO connection warning in the user interface

Improve the gateway distribution and gateway and logger location see 1.3.4.1 Warehouse