Analog-Digital Converter, this electronic components are used to digitize analogous measuring-signals and make them readable to microprocessors. Depending on the required accuracy the digitizing is performed with 8, 16 or 24 bit resolution.

an important message, sent imediately to the central monitoring system

Dragging is used to move an object on the screen from one location to another. Dragging is also used to resize an object by moving the objects border. Click and hold down the mouse button to move or resize an object.

A focus is a visible border or color-effect emphasizing preselected controls

A filter is used to prevent invalid character-input. The set of valid characters are usually annotated with rectangular brackets, for instance
[0-9], [ASCII 32-127]

Final-Values are the result of the signal-postprocessing. Post-processing is used for data-correction by applying calibration-values, or if the use of different technical units is required for data-evaluation (i.e. ppm versus µg, or m/sec versus km/h).

A Graphical User Interface (GUI) allows the user to interact with the system in a shophisticated way.

Halfhour-Meanvalues (HMV) are the result of the standard data-processing. The environmental monitoring system is capable to store up to 21 days of HMV for up to 48 components.

A component may be a physical or a logical component. For instance the wind-gust is described by 3 logical components: wind-gust, related wind-direction and related time-marking of the occurence.

For detailed information see Sun's homepage at java.sun.com

A progress-bar is an indicator showing the progress of timeconsuming operations

Raw-Values are the result of the signal-conversion - the electrical input-signal is converted in technical units by use of a polynomial. For instance the signal-voltage of the temperature-sensor is converted in °Celsius.

RS-232 is a communication-link used for data-transfer over short distances (suitable for up to 15 meters of cable-length).

The sub-identifier is used to distinguish devices of same type. The unique Device ID consists of two digits describing the type of measuring device (ie. temperature sensor = 13) and a sub ID from 1 - 9.

The task-bar is used by the operating system (ie. Win98, WinNT) to indicate running user-applications. A small part of the task-bar is provided for system-activities, for instance time-display.

A hooverhelp or tooltip is used to explain abbreviations or technical expressions

A User Password is required to access data or execute operations

Variable-Meanvalues (VMV) are the result of user-defined data-processing. VMVs may be established for up to 8 components. The storage of VMVs depends on the number of components and the choosen time-interval.

The environmental monitoring system is capable to store exactly 3 days of VMV for 8 components with measuring-intervals of 1 minute. If the number of components is decreased, or the time-interval is increased, the storage-capacity will increase accordingly.

For detailed information see the W3C homepage at www.w3.org

Uwedat® Servicetool

Calibration-View

The Calibration-View shows the recorded calibration-events. Each calibration-event is listed with time-mark, nominal-value, calibration-value, calibration result and reason of calibration. These detailed informations are usefull for maintenance and data-quality prove. The environmental monitoring station is capable to record up to 120 calibration-events.

Description

Datafields

The calibration-table consists of 8 columns

1 column: time-mark of the calibration-event

2 column: the calibrated device

3 column: nominal value at zero-point

4 column: calibration value at zero-point

5 column: nominal value at calibration-point

6 column: calibration value

7 column: calibration result (quality)

8 column: calibration reason

Time-mark This display-field shows the time and date the calibration-event has occured at.
The date-format is DD-MM (day-month)
The time-format is 24 hours from 00:01 to 24:00

CompNr This display-field indicates the calibrated measuring-device by device-number (Device ID and Sub ID).

Calibration-value The calibration-values are grouped into two couples. The first couple of values shows the nominal-value and the calibration-value for zero-point calibration, the second couple of values shows the nominal-value and calibration-value for span-calibration.

Quality The result of the calibration is described by the quality indicator

VALID: valid calibration is used for data-correction

POOR: poor calibration is used for data-correction

valid: valid calibration, is not used at all

poor: poor calibration, is not used at all

INVALID: calibration not applicable for data-correction

invalid: calibration is not used at all

Reason The reason for the calibration is described by a single letter

P: scheduled calibration (periodic)

L: forced calibration due to limit-exceedings

I: forced calibration after power-fail (initialize)

M: calibration initiated by central monitoring system or technician

A: forced calibration after device power-fail (analizer-device)

Sorting The calibration-events are sorted by time-marks in ascending order (new events first). You can re-sort the events in descending order (oldest event first) by double-click on the time-mark table-head.

Each column of the calibration-table can be sorted in ascending and descending order, sometimes the result may be not very usefull. To restore the initial sorting-sequence simply close and re-open the Calibration-View.

Main Menu ButtonQuit the Calibration-View and returns to the Main-View.

Help ButtonCalls the online-help for the Calibration-View (this chapter)

Load File ButtonLoad a calibration-file from a archive (harddisk or floppy) to the Servicetool and display them. Use the file-dialog to select the approbiate file. The calibration-files always have the file-extension "kal".

Save File ButtonSave the actual loaded calibration-list to a archive-file (harddisk or floppy). Use the file-dialog for filename and subdirectory-selecting. The calibration-files always have the file-extension "kal".

File Dialog The look and behaviour of the file-dialog depends on the operation system of your Service-Tool PC. The example shows a file-dialog used with the operation system MS Windows.