A Controlled Calibration consists of a unique feature of the Software Premium to help and record all calibrations operations performed on the Station. This prevents a large number of fuel deviations that are not controlled when used manual calibration, since operators could not necessary return product to the tank.
The Controlled Calibration is oriented by the SmartConsole (or in the screen) and guides the operator to do an assisted calibration operations. All actions are recorded for future viewing in several reports. To perform a controlled calibration, the system put the probe in fine reading mode, that allows evaluate minimal product oscillation inside the tank. Is important to say that fuel tank movements in and tank dimensions could create some inaccuracies. For a correct compensation a pump concentrator must be linked to the Supervisor.
Principle of Controlled Calibration
S2 System can monitor every step and verify if any operation abnormal. To do this, the operator has to make a selection of which hose should be used. This selection can be made directly on the console or in the system screen. In a same way, the operator must inform that he finished the calibration procedure. After that, system evaluates the time between start and finish calibration and validating all operation, making check of the correct product return to the tank.
The same hose can be used multiple times (for example, a calibration for low flow, high flow, and to one another for a conference) without needing inform the system. The report itself tells how many calibrations were performed in the period.
Operation Conditions
For a correct use of Controlled Calibration, some procedures must be followed:
- Previous Tank Calibration
The tanks must be previously calibrated (should have real measures launched in the tank register). Check if tank balance are among less than 0.3% value. If the tank is not correctly calibrated, some values may be distorted and you could receive wrong alerts.
- Probes Calibrated
The probes are automatically calibrated during use. For controlled calibration, must be ensured that the process of self-calibration is complete.
- Avoid tank dispensing at the beginning of the calibration
As a tank can have several hoses, it is essential that there is no sale in other hoses at the beginning. The system waits for all hoses in Ready status. An informational message is displayed to the operator if there is a hose dispensing that can avoid calibration.
- Correct Hose Register x Pumps x Tanks
The system uses the database of Hoses x Pumps x Tanks to decision control, blocking other hoses and increase the sensitivity of the probe from the. An error in this database make it impossible to check the measurement.
- Always finish the Measurement
The system waits for a long time (30 minutes) for end of calibration process of each hose. After the return the product to the tank, you should inform that the process has been completed. It may cause error if you do not terminate or perform product output during this interval.
- Diesel Tanks Calibration with Filters
The calibration process in diesel tanks that uses filters could have large deviations. Because the filter tank is not monitored, any leaks of product (due to faulty valves) or product removal is not accounted for, causing calibrations errors messages.
Detailed Report
The list is sorted by sequence of calibration. See details of each column.
Start Time: Displays the time when the user begin the Hose Calibration
End Time: Displays the time that the user ended the Hose Calibration
Hose: Number of Calibrated Hose
Tank: Number of the tank in which the product must be returned
Result: System analysis of the Calibration Process
Calibrated Volume: Displays the total liters used during calibration (typically 20 liters for Low Flow test and 20 liters for High flow test)
Liters *: Indicates the total sold by the hose since the last Calibration. This information can be used to determine preventive maintenance of the hose.
Report Grouped by Hose
This report allows the analysis of deviations found in each hose. The values of deviations found in benchmarking should be entered directly into the system.
Report Grouped by Product
Possible results presented in the report are:
- Calibration Cancelled
Indicate that the hose calibration process was not completed. This can occur if the users manually cancel operation or because time expired (more than 30 minutes).
- Returned Volume Measured
Indicate that the volume returned is closer expected.
- Volume Returned under Measured
Indicate that the volume returned was under expected.
- Volume Returned above Measured
Indicate that the volume returned was above the expected.
- Supply not Found
Indicate that the calibration process has no record or the hose was not found. This can occur if the pump concentrator are not logically connected at the time of calibration, or if the calibration was closed manually via the console or the expiration of the time limit.
- Unexpected supply in the measured Hose
Indicates that a supply was detected in the calibration process is not compatible with the 20 liters standard.