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The RXM detects the virtual resistance of the medium to control the level height.
It applies between 2 electrodes (or 1 electrode and the tank wall) a continuous current of 12 V
The high resistance range allows a height level detection of media such as:
The RXM detects the appearing resistance depending of medium properties but also of geometry of installation.
The maximum of sensitivity is equivalent to the maximum of the medium resistance for which the relay can works in the conditions of process:
- Adjustable with strap on the PCB
- Fine adjustment with a potentiometer
- Maximal value of 100 MW
- Standard value of 4.7 MW
Probe types and models available for the RXM correspond to all resistive level probes of our catalogue files 540-01, 541-01, 543-01. Please choose in correspondence with process conditions: medium, pressure, temperature...
Power supply: single phase 230 V - 50 / 60Hz
Consumption: < 10 VA
Response: 3 seconds as a maximum, or quicker depending of sensitivity
Maximal temperature: 65°C
Cable length: no maximum to specify, please ask us for over 200 meters
Output relay: SPDT – switching power 750 W / 380 V / 4A
Housing: Composite material
Mounting: DIN rail
The RXM 2851 accept a connection to one probe for one level control only.
The level detection electrode must be wired to the connector 4.
The reference, electrode or tank wall, must be wired to the connector 6.
The relay switches on when the medium touches the electrode: the NO contact closes and the NC contact opens.
The relay will be back to normal position when the medium does not touch the electrode.
Status of relay output: configuration on site
Standard safety status: the relay switches on when the medium is in contact with the electrode.
