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Quick Reference: Sensor Connection, Power, and Alerts

Purpose

During the hiatus your sensors might have gone offline for a number of reasons, batteries might be running low or power was disconnected. This article will provide guidance to bring your sensors back online, ensure they are connected to their respective Hub, and providing the expected information within your Control Centre or E-mail.

Key Highlights

 Important Note: Check Junk or SPAM folder, so that you do not miss one of Checkit's vital alerts. 


Sensor+ Offline Recovery

When the Checkit AM monitoring system indicates that you have a Sensor that has not transmitted data back to your Checkit Cloud account for some time and is now showing ‘OFFLINE’. (for 30-minute ‘Offline’ Alert period)

Please Note: Data will not be stored or will be lost if a total loss of power, to the sensor, is experienced. If battery is dead or removed. This is highlighted below.

 

For 60-minute ‘Offline’ Alert period and if still not connected:

​ Last sensor reading

Alternating to:

 

System Administrators will receive an e-mail alert from the Cloud indicating Location and sensor description.

If you are logged into the control centre and you click on the sensor indicating ‘Offline’ and you see the following symbol, then the issue is with your Hub:

 

This typically means that more than one sensor is affected. Request information on how to ‘Recover your Hub’ from help@checkit.net

If you see this sensor symbol, then issue is sensor specific:

 

If you see both, resolve Hub issue first.

Please check on the following:

The Sensors Serial Number can be found where you connect the external sensor cable to the Power Unit.

 

Sensor+ Power Unit

There are several Sensor Head types that connect to this type of power unit.

There are a range of External Sensors, Temperature, Temperature and Humidity and also a Contact sensor for monitoring ‘Open’ & ‘Closed’ states.

​Air Temperature type. ​Contact type

 

Visual & Diagnostic inspection:

1. Is the sensor Head still located in the appliance in its mounting bracket?
If YES go to 2.
If NO, please try refitting or contact Checkit for further instructions.

2. Is the sensor Head connection cable firmly secured to both Head and Power unit? 
If YES go to 3.
If NO, please try to secure connection.

3. Is there any visible damage to cable, especially at point it may be passing through a Door seal or where it connects to Sensor Head or Power unit?
If YES, please contact Checkit for further instruction.
If NO go to 4.

4. Is the External Power unit still located on its mounting bracket?
If YES go to 5.
If NOT please try to refit or contact Checkit for further instruction.

5. Is the appliance still at its original location?
If YES go to 6.
If NO:

- The Power Unit/Transmitter may be out of range of a Checkit Repeater unit or Hub. Contact Checkit for advice.

- If possible, try taking back to original location and follow steps to force a re-connection, below.

6. Is another appliance or other, placed in front of the external Power unit?
If YES, try to give the Power unit more clearance by removing any blocking obstacles.
If NO carry on to section on forcing a re-connection, below.

7. Is the Mode or Health LED illuminated?
If YES contact Checkit for further instruction, the Health & Mode LED should not be illuminated, unless the device is contacted by a Checkit magnetic key Tag.

Trying to force sensor to reconnect to Hub unit and ultimately update Cloud reading.

Normally it is not practical to remove the sensor Head, Cable and Power Unit from its existing location and take it as close as possible to the nearest Checkit Hub, try performing in situ:

If you have a Checkit Magnetic Key Tag available, press the tag on the corner of the Sensor for 3 to 4 seconds. Make a note of what LED lights you see.

You may need to repeat, but what you are looking for is the Health LED showing green for a couple of seconds.

This should indicate that the sensor has reconnected to the Hub unit.

If Health LED shows Amber, there is a poor signal.

This could be an indication of the sensor’s battery getting too low, try repeating the 3 to 4 second Tag press until you get a Green LED.

Only as a last resort try refitting or replacing the battery (Ask Checkit for instructions on ‘Sensor+ battery replacement’)

 

Please note, this action will wipe any data still stored in the Power unit, contact Checkit for more assistance if this is an issue.

 

If Health LED just keeps indicating Red then it could be a number of issues:

· You are not pressing tag long enough or too long. (Try again)

· You are too far away from Hub or at the wrong Hub if more than one.

· Anything else please contact help@checkit.net

 

It can take up to 15 minutes before the sensor updates to Cloud. ​

Refresh your browser to check image has updated and you no longer see the OFFLINE status on the sensor.

Please note you will now need to clear the alerts from your cloud account to stop the sensors from flashing and If you are not an Administrator or Safety Manager of Checkit you will need to contact them to remove the alert.

 


Sealed Sensor Offline Recovery

When the Checkit AM monitoring system indicates that you have a Sensor that has not transmitted data back to your Checkit Cloud account for some time now and is showing OFFLINE. (for 30-minute ‘Offline’ Alert period)

 

For 60-minute ‘Offline’ Alert period and if still not connected:

 

​Last sensor reading

Alternating to:

 

System Administrators will receive an e-mail alert from the Cloud indicating Location and sensor description.

If you are logged into the control centre and you click on the sensor indicating ‘Offline’ and you see the following symbol, then the issue is with your Hub:

 

This typically means that more than one sensor is affected. Request information on how to ‘Recover your Hub’ from help@checkit.net

 

If you see this sensor symbol, then issue is sensor specific:

If you see both, resolve Hub issue first.

 

Please check on the following:

Serial Number can be found on the back of the Sensor

 

 

Standard Temperature sensor

 

Visual & Diagnostic inspection:

 

· Is the sensor still located in the appliance in its mounting bracket?

· Is the appliance still at that location?

· Is anything with a large fluid content, frozen or not, placed in front of the sensor?

· The Mode and Health LED should not be illuminated unless the device is contacted by magnet

 

If none of above apply, remove the sensor from its mounting bracket and take it as close as possible to the nearest Checkit Hub:

 

If you have a Checkit Magnetic Key Tag available, press the tag on the corner of the Sensor for 3 to 4 seconds.

Make a note of what LED lights you see.

 

 

 

You may need to repeat, but what you are looking for is the Health LED showing green for a couple of seconds.

This should indicate that the sensor has reconnected to the Hub unit.

If Health LED shows Amber, there is a poor signal.

This could be an indication of the sensor’s battery getting too low, try repeating the Tag press until you get a Green LED

 

​If Health LED just keeps indicating Red then it could be a number of issues:

· You are not pressing tag long enough or too long. (Try again)

· You are too far away from Hub or at the wrong Hub if more than one.

· Anything else please contact help@checkit.net

 

It can take up to 15 minutes before the sensor updates to Cloud.​

Refresh your browser to check image has updated and you no longer see the 'OFFLINE' status on the sensor.

 

Please note you will now need to clear the alerts from your cloud account to stop the sensors from flashing and If you are not an Administrator or Safety Manager of Checkit you will need to contact them to remove the alert.

 

Note - If you need further help please do not hesitate to contact us.


Sensor Email Alerts

If you are receiving email alerts we have introduced a new alert system, Please see below for the Hub or Sensor that are showing as OFFLINE. 

 

Please go to step 8 if the sensors are no longer showing offline.

 

In your Checkit Automated Monitoring system, sensors connect to the hub using our wireless network and the hubs connect to the cloud using the internet. All these connections must be working for you to see your data in the cloud and for the sensor alerts to be received. There can be lots of reasons for connection issues – from sensors being damaged or moved, to Wi-Fi problems at your site.

 

From now on:

 

  • If the wireless connection from the sensor to hub is lost, an alert is generated after 60 mins, and the sensor reading flashed “offline”.
  • If the hub connection to the cloud is lost, an alert is generated after 60 mins and all sensors attached to that hub flash “offline”.
  • If any device doesn’t communicate to the cloud for any reason for an Hour, its sensor reading flashes black

We now send an email notification for each alert when any device in the sensor network or hub has lost connection. For more information on this new functionality, follow this link Hub and Sensor Email Alerts

 

If you have received an email from Checkit regarding the Hub / sensor alerts, please follow the steps listed below. If this issue is still not resolved please contact Checkit Support Team.

 


This is the proposed First Step (Hub Reset) if the Cloud Symbol is RED

On the bottom side face you will see 2 buttons, I and II (one is recessed so you will need a pen to press.) 

 



1. To reset/reboot Hub, press and hold both buttons in until the LED's go out, release immediately this happens. (About 7 to 8 seconds)

2. Do not keep buttons held down once LED goes out.

3. After a short period you will see LED start flashing on and off in different sequences, this is the Hub rebooting.

4. It can take up to 15 minutes to fully reboot at which point you should see that Mode, Cloud and Signal LED showing green. (This is the indication all is working correctly)

5. If you see a blue LED on the bell alert, this is just indicating one or more sensors are above or below temperature.

6. The Cloud readings should update shortly after everything connects.

7. Refresh your browser to check image has updated and you no longer see the OFFLINE status on the sensors.

 

8. Please note you will now need to clear the alerts from your cloud account to stop the sensors from flashing and If you are not an Administrator or Safety Manager of Checkit you will need to contact them to remove the alert.


If the issue is not resolved please do not hesitate to contact us if you have any questions. We will now close this ticket but it can be reopened with a response.

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