MTV-Go!
The MTV-Go! is the indoor sensor unit of the HortiMaX-Go!. The MTV-Go! is a special Smart Switch, enclosed in a naturally ventilated dual housing, that measures both the temperature and humidity levels inside the greenhouse. The electronic humidity sensor is located at one end (the bottom end) of the printed circuit board (PCB); the power supply and bus connections are located at the other end (the top end). The top end is installed in a moisture-resistant inner housing.
Figure 35: MTV-Go!
Installation instructions
| Step | Description |
|---|---|
| 1 | To install the sensor unit, first detach the entire outer tube from the top cover. |
| 2 | Then detach the inner housing from the top cover and screw it open. Do this using a Phillips screwdriver PH11. |
| 3 | Set the DIP switch address, as described in Setting the DIP switch address. |
| 4 | Insert the cables through the cable gland and connect them, preferably using matching ferrules. To remove wires, use the flat-blade screwdriver provided (4.0 mm). |
| 5 | Close the inner housing tightly and reattach it to the top cover. |
| 6 | Reattach the outer tube to the top cover. |
| 7 | Hang the sensor unit in a representative location inside the greenhouse (see: Representative location) |
Representative location
The MTV-Go! sensor unit is essential for controlling the climate inside the greenhouse. That is why it must be hung in a location that is representative of the entire climate zone. Recommended locations are:
- For tall crops: in between the plants
- For short crops: just above the plants
Do not hang the sensor unit too close to a path or wall. To avoid the bus cable becoming too long, hang the sensor unit near to the other Smart Switches.
If the distance is too long and the supply voltage drops below 24V, you will need to install a separate power supply for the sensor unit in question.
Use the free Green-Green-White wire to feed power from a control cabinet (housing the Smart Switches) to the sensor unit. Use the Brown (A) and Brown-White (B) wires for the return if the sensor unit is not the last device on the bus. This does require the Smart Switch before and after the sensor unit to be located in the same control cabinet.
