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Cisco Meraki Documentation

MT11 Sensor Probes

MT11 Probes Installation

Routing the probe cable through the hermetic seal

One of the easiest ways to set up monitoring in a cooler or a refrigerator is to route the probe cable through the hermetic seal. Follow the instructions below or simply refer to the video

Start by identifying the location of the install. 

  1. Make a note of the location where the sensor element will be installed and check how the cable can be routed. 

  2. Also make a note of any obstructions that may prevent or displace the cable.

  1. Once the location is decided, apply the included rubber gasket on the refrigerator body where the hermetic seal is making contact with the body. 

  2. Route the probe cable through the center of the rubber seal and install the sensor element at the desired location.

  1. After the probe cable is situated at the desired location, secure the remaining length of the cable outside the refrigerator using the cable clips included in the packaging for the Probes to avoid any slack.

  2. Optionally, you can use a piece of duct tape over the rubber seal to prevent displacing the cable.

As a final step, mount the MT11 body by referring to the instructions above. Make sure that when mounting MT11, it is within range of a qualified gateway.

The rubber seal gasket and sticky cable pads are included in the Probes packaging.

Drilling through the insulation of the refrigerator

In this method, we’ll be drilling a hole through the insulation of the refrigerator so the probe can be passed through while keeping the MT11 body outside within the operating range.

Drilling through a refrigerator may void your warranty. Please consult with your refrigerator manufacturer before making any physical modifications. 

 

Pre-install Preparations
  1. Specification - The diameter of the hole should be at least 15mm wide in order to successfully pass the probe. 

  2. Tools Required - This list will vary according to the type of material being used

    1. Drill

    2. Drill bits - pilot hole bit, boring hole bit

    3. Sealant or a Caulk

    4. Caulk gun

  3. Identify the location

    1. Start by identifying the location of the install. 

    2. Make a note of the location where the sensor element will be installed and check how the cable can be routed. 

    3. Also make a note of any obstructions that may prevent or displace the cable.

Drilling
  1. In our demonstration, we used a pilot drill bit to start the initial hole and made sure we went through the side of the refrigerator. This is an optional step if you have the appropriate drill bit for a 15mm wide hole.

  2. Once the pilot hole was made, we used a wider drill bit to make the hole at least 15 mm wide for the probe to pass through.

Installing the Probe
  1. After the appropriate hole is drilled, clean up the debris and use some sandpaper to smoothen the surface.
  2. Route the probe cable through the hole.
  3. Secure the sensor element at the intended location to prevent it from being displaced.
Mounting the MT11 body
  1. Once the probe is installed, take the excess cable and secure it using the sticky cable pads on the outside of the refrigerator.
  2. Plug in the 3.5 mm jack on the MT11 pigtail and mount the body using the appropriate mounting method.

 

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