MLRTPS General Description

This document defines the properties of Micropelt’s maintenance free, indoor room temperature sensor with Set Point functionality and Presence Detection MLRTPS.

Installing the Micropelt MLRTPS system is simple. Use the provided screws and dowels to mount the back plate on the wall and mount the housing onto the back plate.

MLRTPS is an 868MHz LoRaWAN CLASS-A wireless actuator. LoRaWAN allows to control over long distances, even inside buildings. LoRaWAN end-devices of Class A allow for bidirectional communications whereby each end-device’s uplink transmission is followed by two short downlink receive windows. The transmission slot scheduled by the end-device is based on its own communication needs with a small variation based on a random time basis (ALOHA-type of protocol). Class-A operation is the lowest power end-device system for applications that only require downlink communication from the server shortly after the end-device has sent an uplink transmission.

Each standard production MLRTPS unit has a unique DEVEUI, JOINEUI (APPEUI) and a randomly generated APPKEY. Device credentials are secret and will only be submitted with the product delivery. Questions related to device credentials can be sent to devicecredentials@micropelt.com.

To operate the device, the unit must be paired with a compatible controller or gateway unit supporting its communication profile. Once mounted on the wall and activated using the magnetic key, the device attempts to connect to a gateway. If the connection to the gateway is successful, then it is ready for use.

Success of activation or deactivation is signaled by tone signals and LED.

The product is delivered with the Battery/Primary Cell disconnected to save energy. The installer has to connect the Primary Cell before mounting the device.

The room temperature sensor operates with a communication profile. Installation, activation and a successful join with the network server will immediately set the radio communication interval to every 10 seconds for an installation period of 5 minutes to provide rapid feedback.

The MLRTPS has a built-in temperature sensor to measure the ambient temperature of the room. A Passive Infrared Sensor (PIR) is used to detect motion in the room to reduce unnecessary heating when there is no one present. The MLRTPS also has a temperature set point functionality. The rotary dial is used to select the required Set Point Temperature.

The Set Point may be absolute or relative depending on the model of the MLRTPS.