Wireless sensors

Wireless sensors - Summary of selection guide

The rTM system is available with new product codes, as the improvements introduced regarding the ZigBee wireless communication protocol mean it is not compatible with the previous series.

The CAREL rTM  system consists of the following components:

• Battery powered sensors:
  - two versions for two specific needs:
  Temperature sensor fitted inside the showcase, version SE BP (Built-in Probe);
  Sensor with two external NTC probe and two digital inputs, version SE EP (External Probe) for showcases and cold rooms;
  -sensor powered at 12 to 24 Vac;
• Sensor with two external NTC probe and two digital inputs, version EP1/Router SE (External Probe) for showcases and cold rooms. This device also integrates the Router function;
• Access Point. Wireless receiver that acquires data from the various sensors in the ZigBee™ network, making such data available to the supervisor via Modbus® RTU. Up to 30 sensors can be directly associated with each Access Point, or a maximum of 60 if one or more Routers are used. The supervisor (PlantVisorPRO or PlantWatchPRO) can thus see all the variables in the rTM SE system;
• Router. To be used when the distance between the sensors and the Router exceeds 30 m, or if there are more than 30 sensors in the network. There can be a maximum of 60 Routers in the wireless network, 48 of which are visible to the supervisor. The Access Point automatically assigns a serial address in the order in which these are "associated", starting from 200 up to 247;

Selection Tool. CPQ is CAREL's tool for selecting sensors (and more), available at cpq.carel.com. Complete list of codes, detailed information and links to documentation are just some of the main features of the sensors selection module in the CPQ platform. More information