Equipment (A/S/P): Calibration tab - HxGN EAM - 12.00.00 - Feature Briefs - Hexagon

HxGN EAM Calibrations

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English
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HxGN EAM
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Feature Briefs
HxGN EAM Version
12

After creating a device record, navigate to the Calibrations tab to enter device level, calibration specific data. Any information entered on this tab is stored, in the database, in the same table as the device record itself (i.e., R5OBJECTS).

It is not a requirement to populate any of these fields to be able to calibrate the device; however, entering field values here can make the downstream process more efficient.

Some fields on this tab function as default values for all test points created for the device while other values do not default to test points but instead, will be copied to the work order for the test point if the corresponding device test point value is blank (see Equipment (A/S/P): Test Points tab for details).

The following fields are found on the Calibration tab for Equipment. Brief descriptions are provided as well:

  • Instrument / Loop (check boxes) - Identifies whether the device is an ‘instrument’ or a ‘loop.’ See loop specific behavior discussed elsewhere in this document.

  • Instrument Type - If the device is a loop, then set Instrument Type = Reading Taken From. If the device is an instrument and the instrument is part of a loop, then set Instrument Type = Reading Applied To or Accessory. Else, Instrument Type has no impact on system behavior.

  • Test Point UOM - The unit of measure for the characteristic being calibrated. If a temperature display device is being calibrated, then the Test Point UOM value could be Fahrenheit or Celsius. This value, if populated, will default to the same field for each test point created for the device. The default value can be changed for each test point.

  • Output UOM - The Output UOM would be relevant if the characteristic being calibrated is different from the standard characteristic applied to the device. For example, if Current (in Milliamps) is being applied as a standard for calibration purposes, but the device output is in Pressure (in PSI), then Output UOM would be set to PSI while Test Point UOM is set to Milliamps in this case. Output UOM, if populated, will default to the same field for each test point created for the device. The default value can be changed for each test point.

  • Percentage / Absolute (radio buttons) - If the Device Tolerance From / To are entered as a percentage, then set to Percentage; otherwise, set to Absolute. If set to Percentage for the device, then the Percentage check box for each test point created for the device will default to selected. Otherwise, the Percentage check box will default unselected. The default value can be changed for each test point.

  • Device Tolerance From/To - The number entered here will be interpreted by the system as a percentage or absolute value based on the Percentage / Absolute radio button value. When performing the calibration defined by a device test point, this range will indicate the range of values above and below the test point value that are considered as a Pass by the system. This will be the default tolerance for each test point created for the device. The upper and lower ends of this range can be different.

  • Alert Tolerance - When performing the calibration defined by a device test point, this range will indicate the range of values above and below the test point value that do not require a recalibration. In other words, this is a range that is tighter than the Device Tolerance From / To described above. If the observed value during a calibration is inside this tolerance, then it is considered as a PASS. If the observed value is outside this range, but still inside the Device Tolerance range, then is considered as a RECAL (i.e., although the test point did not fail its calibration, an adjustment/correction needs to be made to the device and the calibration performed again). It is used to ‘alert’ the technician that while the calibration test point passed, the device may need attention soon before a failure occurs. Because there is only one field here, the upper tolerance and lower tolerance MUST the same. If a value of 10 is entered here, the system will calculate the alert tolerance for a test point of 200 as 180 – 220. This value will not default to each device test point created. If the alert tolerance on the test point is left blank, the system will use the device level value (i.e., from Calibration tab) during the calibrations process on a calibration work order. If the alert tolerance on the test point is populated, the system will use the value on the test point i.e., the test point value overrides the device level value. Increment does not impact the Calibration tab for Test Points tabs for Equipment.

  • Increment - Increment identifies the smallest value increment that the device can display. Valid values range from 0 to 999999999999999999.999999. The system ensures that actual calibration readings entered for calibration work orders is divisible evenly by this value. So, if a pressure display device can display readings no smaller than .5PSI, the system will not allow any reading in a smaller increment. For example, if a reading of 20.1 PSI is entered, then an error will be displayed, while a reading of 20.5 or 20 will not receive an error. This value will not default to each device test point created. If the increment on the test point is left blank, the system will copy the device level value (i.e., from Calibration tab) to the calibration work order test point for use during the calibrations process. If the increment on the test point is populated, the system will copy this value to the calibration work order test point i.e., the test point value overrides the device level value. Increment does not impact the Calibration tab or Test Point tabs for Equipment. It only impacts calibration work order test point readings.

  • Precision - This value identifies the number of decimal places allowed for a calibration reading value on the calibration work order. Valid integer values range from 0 to 6. If precision = 3, then readings with a maximum of 3 decimal value can be entered. If less than 3 decimal places are entered, the system will add trailing zero out to the specified number of decimal places. For example, if a reading of 20.1 PSI is entered, then an error will be displayed, while a reading of 20.5 or 20 will not receive an error. This value will not default to each device test point created. If the precision on the test point is left blank, the system will copy the device level value (i.e., from Calibration tab) to the calibration work order test point for use during the calibrations process. If the precision on the test point is populated, the system will copy this value to the calibration work order test point i.e., the test point value overrides the device level value.

    Precision is also enforced for the Device Tolerance From / To fields on the Calibration and Test Points tabs for Equipment, but only when the Absolute radio is selected. It does not apply when the Device Tolerance From / To is expressed in terms of a percentage. Precision is always enforced on the Test Points tab for Equipment for the Test Point and Output Fields.

  • Device Range From/To - This is the operating range of the device. Valid values range from -999999999999999999.999999 to 999999999999999999.999999. This value will not default to each device test point created. If the device range on the test point is left blank, the system will copy the device level value (i.e., from Calibration tab) to the calibration work order test point for use during the calibrations process. If the device range on the test point is populated, the system will copy this value to the calibration work order test point i.e., the test point value overrides the device level value. There are no delivered business rules that impact, or are based on, this range; however, it is required when setting Output Calculation Type = ‘Linear’ or ‘Square Root.’

  • Output Range From/To - This is the output range of the device. See Device Range From/To for behavior.

  • Process Range From/To - This is the operating range for the overall process. See Device Range From/To for behavior, except this range is not required for Output Calculation Type = ‘Linear’ or ‘Square Root.’

  • Default Set - Set is used as a method of grouping, or categorizing, device test points. One device may have different frequencies for which it is calibrated (i.e., weekly, monthly, annually, etc.). Set can be used to identify these frequency groupings. For example, the weekly calibration might consist of 3 test points, the monthly calibration 5 test points, and the annual calibration 10 test points. Each of these groupings is called a ‘set’ and will have the same Set value assigned to all test points in that grouping. In the above example, you can call these Sets 1, 2, 3 or A, B, C or whatever you like. When creating a PM equipment record for the weekly calibration of the device, a Test Point Set = 1 would be assigned to the PM equipment record. When calibration work orders are generated for that PM equipment record, the system copies ONLY the test points on the device whose Set = 1 in this case.

    The Default Set value on the Calibration tab for Equipment will default for each test point created for the device; however, the user can change the default value for the test point. If no Default Set is defined, then an asterisk (*) will be used on the test points.

  • S.O.P. - Enter the S.O.P. that is relevant for the device (instrument or loop). See P&ID Drawing in Equipment (A/S/P): Create devices for behavior.

  • Output Calculation Type - This field is used when test point output values are not specifically stated on each test point for the device but are calculated based on the test point (or standard) value, output range, and device range. If Output Calculation Type = ‘Linear’ or ‘Square Root,’ then the test point output values will be calculated on the calibration work order. They cannot be entered for each test point on the Test Points tab for Equipment.

    The default value for this field is ‘Manual’ which allows Output to be specified for each device test point.