ParTech 7200, Инструкция по эксплуатации

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7200 Monitor Instruction Manual
15 Clean Setup
The clean setup and manual clean menu’s are only display if the selected sensor type is capable of auto cleaning. If a
non self-cleaning sensor is being used, the following section is not applicable.
The Partech range of self cleaning sensors are designed such that the 7200 Monitor determines when a clean cycle is
performed. During a clean cycle, the 7200 Monitor display value, alarm outputs and analogue output are all frozen,
and are only unfrozen once the clean cycle is complete. The stage of the clean cycle is indicated on the measure
mode status bar throughout the clean cycle.
For further information regarding the clean operation of a self-clean sensor, please refer to the appropriate sensor
instruction manual.
15.1 Set Clean Interval
The clean interval determines the length of time between the sensor being cleaned. The user can select a clean
interval between 30 minutes and 24 hours, using the value adjustment method of data entry.
Note: The clean interval is entered in hours and minutes. (HH:MM)
15.2 Clean Mode
The clean mode menu is used to set whether the sensor will operate in its Normal or Reverse mode. The default
setting for clean mode is Normal and this is suitable for most applications.
Normal Mode
In this mode, the sensor is measuring most of the time with the sensor probes extended. The clean cycle causes the
retraction of the sensor probes into the sensor housing such that the probes are cleaned. The probes are then
extended back to the measuring position and measurement recommences.
Reverse Mode
When the sensor is used in reverse mode, the sensor probes are held in the fully retracted position for the majority of
time and a stored measurement is used for the display value, alarm and analogue outputs. The clean interval is used
to determine when the sensor probes are extended. Once fully extended a measurement is performed and the stored
value is updated. The sensor probes are then retracted to the fully in position.
Page 32 of 50 167300IM-Issue 12 Issue Date 14/10/2014
Clean Interval