Take a look at the diagnostic and troubleshooting capabilities of the Knick Stratos Multi.

Intuitive Diagnostics

The Stratos Multi transmitter provides intuitive diagnostics, along with the multi-color backlit display which indicates the operating state of the measurement loop. A change in the screen color clearly indicates status, along with the corresponding Namur NE 107 icon at the top of the display. Here you can see that our transmitter display is red with an X icon flashing. This is an indication that we are in alarm mode and that further messages are available.

Error Messages

By pressing the right soft key to access our Favorites Menu, we can go into the Message List to view the errors which we are experiencing. Here we can see several errors which are caused by channel 1 having a disconnected sensor. A code indicates the errors, which are followed by a brief description. You can find further information and tips on fixing the issue in the Error Messages section of the transmitters manual. Let’s start by connecting our sensor and see what happens.

Troubleshooting with Sensoface

When troubleshooting a Memosens sensor, the first place to start is the Sensoface display on the main screen. A smiley face indicates all as well with the health of your sensor. A neutral face indicates that the sensor needs attendance soon, and a frown indicates that the sensor needs maintenance or replacement. You may also notice additional icons on the main screen, further pointing to the issue at hand. Again, the Message List will assist you on what to do next.

Diagnostics Menu

To further diagnose your Memosens sensor, we will want to enter the Diagnostics menu in the Stratos Multi. We will do so by pressing Menu and then enter on Diagnostics. Please note you have the ability to setup any of these options as a Favorite. If you have not set up your Favorites Menu, please watch our video on the process.

Within the Diagnostics menu we have the option to view the Sensor Diagnostics for channel 1 in our transmitter. Within Sensor Information we can view specific details in a text format about our sensor. You can access raw sensor values under Sensor Monitor. Additionally, you can view the Calibration and Adjustment Record along with the Sensor Wear Monitor. The Sensor Wear Monitor gives an in-depth look at the number of operating hours on the sensor, percentage of wear, and most importantly, how many days of life we have left in our sensor.

Sensor Diagram

For a quick analysis of the condition of your connected sensor, use the Sensor Diagram when troubleshooting pH, ORP, and oxygen sensors. The Sensor Diagram provides single glance information on continuously-monitored sensor parameters. The parameter values in the diagram should lie between the outer 100% and inner 50%. When a value enters the inner portion of the diagram, the corresponding caption text flashes red and the sensor needs attendance. Cleaning and calibrating the sensor may remedy the situation, or the sensor may need a replacement.

All of these values are helpful in determining if your sensor needs to be cleaned, calibrated, and put back into service, or if you should replace the sensor. If followed properly, these tips will help to ensure a healthy and reliable measurement loop, along with getting the most life out of your sensor.

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