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2 Replies
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You’ll need resistive tank senders, as the Cerbo GX doesn’t support mA or 0-5V sensors without extra gear.
After hooking them up, go to the I/O menu on your GX device to enable them.
You can set up all sorts of things, like tank volume, capacity, and even custom shapes for tanks that aren’t linear.
Plus, the Cerbo GX is versatile enough to work with both European and US standard tank sensors.
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Here are some steps to take, in order to ensure that tank level sensors are properly connected to your Cerbo GX:
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Resistive Sensor Requirement: The Cerbo GX tank level inputs are designed for resistive tank senders. Therefore, any sensors that output a current (mA) or a voltage (0-5V) will not be compatible without additional hardware that converts their signals to a resistive output.
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Enabling Tank Sensors: Within the GX device settings under ‘Settings → I/O → Analog input’, you can activate the tank sensors. Upon enabling, the connected tank will become visible in the Device List, which is accessible from the main menu of the GX device.
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Tank Fluid Type Configuration: The system allows you to specify the type of fluid in each tank, choosing from fuel, freshwater, wastewater, oil, and more. This ensures that the GX device can accurately interpret the sensor data for the corresponding tank contents.
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Volume and Capacity Settings: You can define the volume units (liters, cubic meters, gallons) and total capacity for each tank. This is crucial for the system to calculate and display the percentage of tank fullness correctly.
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Custom Calibration for Tank Shape: The GX device provides the option to calibrate tank sensors for tanks with irregular shapes. This advanced calibration allows you to create a custom sensor curve with up to ten data points, ensuring the displayed levels match the actual tank content levels.
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Alarm Configuration: For each tank sensor, you can set distinct high and low level alarms. This feature is particularly useful for preventing tanks from running dry or overflowing by alerting you when the content reaches critical levels.
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Compatibility with European and US Standards: The tank level ports on the Cerbo GX can be configured to match either European (0 – 180 Ohm) or US (240 – 30 Ohm) tank sender standards, or a custom Ohm resistance range, depending on the firmware version of your device.
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Data Relay to VRM Portal: The tank level data is not only displayed locally on the GX device but is also sent to the VRM Portal. This allows for remote tracking and monitoring of tank levels from any location, as well as the ability to trigger relays for automated actions such as starting or stopping a pump based on the tank level.
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Physical Installation of Tank Probes: For a secure connection, the tank probes should have a ferrule or an exposed copper end of at least 10 mm, which is inserted into the removable terminal block connector on the GX device. This ensures a stable and reliable connection for accurate tank level measurements.
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Sensor Activation and Customization: Once a sensor is enabled and recognized by the GX device, you can customize its settings to suit your specific installation requirements, ensuring that the monitoring system is tailored to your needs.
Each of these steps is crucial for the successful integration of tank level sensors with the Cerbo GX, allowing for comprehensive monitoring and management of liquid resources within your system.
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