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The iGRAIN Relay Output Unit is a control module designed for automatic control of aeration and head space ventilation fans. The unit is controlled from the iGRAIN Dashboard Manager or control board via RS485 MODBUS. Each unit has 8 relays with NO (Normally Open) and NC (Normally Closed) relay contacts and the status of each relay is indicated with a diode. Each relay unit can be set to an individual address and be installed remotely where the aeration power relays are located. The unit is normally only used for aeration control if there is no PLC/SCADA system available. Advantages • Status and control by iGRAIN Dashboard Manager • Easy control board mount • Operates in either manual or automatic mode via the aeration control software

The iGRAIN Plenum Pressure Sensor confirms that the aeration control takes place at the right time. Situated in the silo plenum space or in the transition box from the aeration fan, the pressure sensor confirms that the aeration fan is running; this is necessary because when the iGRAIN dashboard software determines that the fans should run, then an alarm will be triggered if it does not happen. And vise versa, if the fan is running when the software has calculated it is not advantageous, then another alarm will be triggered. The pressure sensors are connected to the iGRAIN AIO-Hub. A CAT6 cable can be used for both power and the MODBUS data communication. The AIO-Hub can be connected to other sensors in the AIO family since they share the 24 VDC and the universal MODBUS communication protocol.

The iGRAIN AIO and AIO+ Sensor Cables combine several different digital sensor technologies into one advanced sensor cable. The AIO Sensor Cable may be used as the only monitoring solution in a single silo and it can be supplemented with additional iGRAIN Temperature Sensor Cables All-In-One Sensor Cable features: - Cost efficient total monitoring - CO2 monitoring: Infestation quantification - Moisture monitoring - Temperature monitoring - Headspace humidity monitoring - Grain level monitoring - AIO+ only: Organic volatile gasses monitoring Advantages: - Advanced total monitoring system in one cable - Intelligent use of sensor technology reduces the needed monitoring equipment - Smart communication Interface / Software: - MODBUS communication - Sensors connect directly to iGRAIN Control Board or any PLC/SCADA system or other platforms - Automatic aeration control incl roof vent control - Inventory management Now also available with Phosphine safe cables!