Add Additional Meter to Service Revision

This document explains how you add different types of additional meters to a service revision. The following types of meters are described:

  • Competing meters
  • Time-phased meters
  • Fixed date meters
  • Absolute meters.

Outcome

Different types of meters are connected to the service revision and you have defined how the service is to be scheduled. See the descriptions under each heading in the Step Action list for further information.

Together with operation plans and calendar time, the settings you have defined will be used by the system to calculate when different services should be performed.

Information about the additional meters is stored in the AOMPGL table for maintenance limits.

Information about service dates is stored in the MOSEDT table.

Before you start

  • A service revision must be defined in 'Service Revision. Open' (ECS300).
  • The meter must be defined in 'Meter. Open' (MMS051).
  • The meters to be used against the service must be linked to the product or equipment in 'Item. Open' (MMS001/J) and 'Item. Connect Meter' (MMS004).
  • If an absolute meter is to be connected to a service revision, then this meter must also be defined as an absolute meter in 'Meter. Open' (MMS051).
  • If an absolute meter is to be connected to a service revision, then the revision must be defined as an unscheduled service.

Follow these steps

Add Competing Meter to Service Revision

Add competing meters when you want the service to be triggered either when the first or the second meter reaches the limit. One example could be a regular car service that should be performed either at 15,000 km or every 12 months, whichever comes first.

  1. Start 'Service Revision. Open' (ECS300/B).

  2. Highlight the service revision to which you want to add meters and select option 18='Maintenance Limits' to display 'Service Revision. Connect Maint Limits' (ECS311/B).

  3. Set panel sequence E and sorting order 1.

  4. Select a meter to link to the service revision and a threshold (optional). Select New to display the E panel.

    The threshold value indicates the first occurrence of the service. The interval may be different once the threshold is reached.

  5. Specify whether inventory time should affect the limits and whether the threshold value represents the lifetime limit for the maintenance object.

    Inventory maintenance should normally always be set to 2 to ensure correct calculation of maintenance intervals at all times.

  6. Specify a repeat interval to indicate the frequency of the service.

  7. Specify operational and economical tolerances (optional fields).

    The operational tolerance indicates how much the service can be exceeded.

    Economical tolerance 2 indicates how much earlier the service may be performed before it becomes uneconomical.

  8. Specify a sampling percentage and whether simulation should be performed (optional information and normally not used). Press Enter to save.

Add Time-Phased Meter

Use a time-phased meter when the frequency of a service changes over time. A service might, for example, have a frequency of 50,000 km the first 200,000 kilometers, but then a frequency of 25,000 km after that.

  1. Start 'Service Revision. Open' (ECS300/B).

  2. Highlight the service revision to which you want to add meters and select option 18='Maintenance Limits' to display 'Service Revision. Connect Maint Limits' (ECS311/B).

  3. Set panel sequence E and sorting order 1.

  4. Select a meter for which to define the time-phased interval and a threshold. Select New to display the E panel.

    One limit should already exist for this meter.

    The threshold equals the meter value at which the interval should change.

  5. Specify whether inventory time should affect the limits.

    This should normally always be set to 2 to ensure correct calculation of maintenance intervals at all times.

  6. Specify the new interval.

  7. Specify operational and economical tolerances (optional fields).

    The operational tolerance indicates how much the service can be exceeded.

    Economical tolerance 2 indicates how much earlier the service may be performed before it becomes uneconomical.

  8. Specify a sampling percentage and whether simulation should be performed (optional information and normally not used). Press Enter to save.

Add Fixed Date Meter

Use a fixed date meter when you want the service to be scheduled for particular dates or days of the week. If you define a fixed date meter, this will override all other meter options.

There are two ways of defining the service dates. Either you do it manually, or you let the system generate the service dates. Manual entry is described in steps 20 to 21. Automatic entry is described in steps 22 to 25.

  1. Start 'Service Revision. Open' (ECS300/B).

  2. Highlight the service revision to which you want to add meters and select option 29='Service Dates' to display 'Service. Connect Service Dates' (MOS322/B).

  3. Select panel sequence E and sorting order 1.

  4. Enter the start date and select New to display the E panel.

  5. Press Enter to add the service date and save.

  6. Select F13 to display the P panel.

  7. Select the days that the service should be allowed to be scheduled on and then press Enter to return to the B panel.

  8. Enter a start date for the meter generation and select F14=Create calendar.

  9. Enter the date to which the service dates should continue. Press Enter to save.

    The system will calculate all service dates until the end date. The repeat interval will be taken into account so that, for example, a service with an interval of four weeks will receive service dates every four weeks on the selected day.

Add Absolute Meter

Use an absolute meter if you want to trigger a service based on the condition of the equipment or product rather than on any form of time. A service with an absolute meter is triggered when reported values are outside specified limits. One example could be a service for checking the tires on a bus with a meter that is defined as a thickness meter linked to the service.

When a meter value outside the limits is reported, the service will be triggered. In the above example, the service could contain an operation for changing the tires.

  1. Start 'Service Revision. Open' (ECS300/B).

  2. Highlight the service revision to which you want to add meters and select option 18='Maintenance Limits' to display 'Service Revision. Connect Maint Limits' (ECS311/B).

    Note that this service revision should not be scheduled. Rather, it should describe the action to be taken when inspection results are outside the limits. In this example, the service could contain an operation for changing the worn tires.

  3. Select an absolute meter that is connected to the equipment or product and specify a minimum meter value in the Threshold field. Select New to display the E panel.

    The Threshold field will act as the minimum value field for absolute meters. The field heading will change to 'Min value' on the E panel.

  4. Enter the maximum value that is permitted. Also enter a trend value if applicable. Press Enter to save.

    If a trend value is entered, the service will be triggered if the reported value in (MOS160) is greater than this value.

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