Glossary Of Terms Used In Measurement Technology - Hydac FluidControl Unit FCU 8000-1 Série Manuel D'utilisation Et D'entretien

Operating and Maintenance Instruction FCU 8000-1 series

14 Glossary of terms used in measurement technology

Measuring point: The name of the position at which the FCU is connected to the
hydraulic system.
This name (max. 20 characters) can be input into the FCU for logging.
Example: Pump Press W3
Measurement value: The actual value of the contamination class.
Example : ISO 16/13/10
Measurement: Immediately after pressing the "OK/START" key a measurement begins.
New measurement values of the particular contamination class are displayed in the LCD
typically once per minute (depending on the flow rate).
Averaging interval: The time interval (in minutes), pre-set by the user, over which the
FCU measurement values are averaged. The average value will be printed out and
stored. In the display the actual measurement values are displayed.
Example: 10 minutes (but also, for example, 24 hours = 1440 minutes possible)
Memory: Once started, a measurement runs continuously, i.e. new values are obtained
constantly which are filed one after the other as log lines in the measurement value
memory. If the memory is full, the oldest measurement values are overwritten with the
newest (rolling memory). Therefore it is always guaranteed that no current measurement
values are lost.
Log: A measurement range is described as a log. It consists of the log heading and the
log lines.
The FCU stores up to 100 logs.
Log heading: It contains:
· A log number (numbered consecutively automatically after each measurement starts).
· The name of the measuring point (can be input by the user)
· Date + time of the start and end of the measurement (created automatically)
· Averaging interval
· Number of log lines (measurement values)
· Duration of the measurement range
HYDAC Filtertechnik GmbH
Doc.: 3109776 Ed.: 01/13.02.2002
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