102 of 124  Construction of Giresun Wastewater Treatment Plant  Tender Dossier Volume 3 Employer’s Requirements  Section 8: Electrical Works  The system shall contain the double number of cards necessary.  Preventive Maintenance Schedule Types:  It shall be possible for the system to generate the following schedules:   A work order after a specific time period (days)   A work order a certain length of time after the last maintenance has been done   A work order after a certain meter interval (hours, Cycles)   A work order after a certain meter interval or time period   A work order on any number of different days in the year. Also used for seasonal work order.   A work order based on high and low warning values.  It shall be possible for the operator to reset the counters if he has gained access.  Editing of Data:  Curves:  The editing shall be carried out via a menu program.  It shall be possible to write text on screen pictures including on flow-diagrams and curves.  Curves shall be selected via a menu. It shall be possible to select pictures of curves of 1 year, 1 month,  7 days, 24 hours, 6 hours, 1 hour and 1/4 hour.  It shall also be possible to select historical curves from and to a specific date. It shall for example be  possible to shown curves of 24 hours duration from 5 days ago. It shall be possible to indicate a minimum of 8 different curves on the same picture. Each curve shall  be presented in a different colour.  The unit, the Y-axe and the name of the curve shall be indicated in the same colour as the curve.  Static and dynamic screen pictures shall be shown. For dynamic pictures the screen picture shall be  updated every time new data is being recorded.  It shall be possible to print the actual digital values for the curves including the time for the actual  value.   Zoom-in and zoom-out shall be possible for the X- and Y-axe direction.  Print of curves shall be initiated by activating a function key or by operating the mouse. Configuration of screen pictures of curves shall be easy and only involve a few commands.  Screen pictures of curves shall be provided with explanatory text and date and time for print shall be  included. It shall as a minimum be possible to include up to 60 curves.  A number of flow pictures of the process shall be provided. The flow pictures shall indicate the actual  status of the process and the pictures shall continuously be updated. Updating of the pictures shall be  less than the following time values:   Updating of picture after change of picture: 2 sec.  8.22.4 Flow pictures  8_Vol3_d4.3_Section 8 electrical works_en_GIR.rev8.doc 