TireTemp - Installation

Sensor mounting

First decide what spot or area of the tire you want to measure the temperature of. Then locate a mounting spot for the sensor. Consider the following:

• The sensor has a conical view. The closer the sensor is to the object, the smaller the measuring spot. A typical distance is 20mm;
• The tyre picks up dirt and other stuff you do not want on your sensor lens. If the lens is dirty, the temperature of the dirt on the lens will be measured instead of the tyre temperature. So, mechanical installation should include attention to air flow patterns to minimize dirt building on the lens;
• The bending radius of the cable is limited to a minimum of 80 mm (3.2 in.) while moving and a minimum of 53 mm (2.1in.) in static condition;
• Keep in mind that the sensor lens will need cleaning.

The sensor has two M4 mounting holes and two tie-rap cable spacings. To minimize the cable movement at the position where the cable enters the sensor, fix the cable 15 mm (0.6 in.) from the sensor housing with an extra tie-rap.

BaseUnit

Find a suitable location to mount de BaseUnit. This location should preferably be an electrically and mechanically friendly environment (low on moisture and dirt, no high temperatures and low on mechanical stress). Fix the BaseUnit to the vehicle using tie-raps or Velcro.

Route the sensor cables to the BaseUnit and make the connection of the sensor to the BaseUnit. If not all 4 sensor inputs are used, use a protection cap for the unused connectors at the BaseUnit.

The power supply is the standard vehicle 12V battery power system. Connect the TireTemp power supply cable to the same contacts as used for the data logging system power supply (ground loop prevention). Use a 4-pin Binder 712 connector to connect the power supply to the BaseUnit.

Connect the output cable to the BaseUnit and the data logging system.

Now all cables are connected to the BaseUnit. Use tie-raps to guide and fix these cables.

Connection to data logging system

The output signals are available at an 8-pin Binder 712 connector. Depending on the data logging system, a cross over cable has to be made. Since there are a lot of different data loggers on the market, all with their own specific connectors and pin out, it is hard to prepare specifications for these cables. Use the data logger documentation to assemble a suitable cable or ask your datalogger supplier.

The output voltage range is 0 to 4.5V. This output voltage is linear to 0 to 120 °C or 32 to 248 °F. The following formula can be used: