Maintenance ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ Page - Fellow Kogyo FOCAS-2000 Instruction Manual

Page. 25
Maintenance and Checking
8
.
Maintenance (Maintenance Mode)
8-2.
The oil concentration detector has Manual Washing, Zero-Point Compensation, Operation Check, and Reset After Zero-Point Compensation
functions. (See "6. Setting (Outline) - Tabulated list of menu items.")
To use a testing function, keep on pressing "Esc" for 2 seconds or longer in the standby state.
(The testing function is not available while the oil concentration detector is running.)
Select a maintenance function by operating " " or " " in the "Maintenance Mode."
Manual washing (Washing press Enter)
8-2-1.
The Manual Washing function performs a simple washing operation using water from the fresh water inlet before cleaning the sensor.
The Manual Washing function flows water from the fresh water inlet into the detection tube in the sensor unit for a preset time period.
(But does not judge whether the detection tube is clean.)
Usually, you manually wash the inside of the detection tube and clean the sensor with brush while this function flows water (for a preset time
period), drain the spent water from the detection tube, and use this function again to feed water (for a preset time period) to wash the sensor
and the detection tube.
Manual washing procedure
Check and make sure the fresh water line is firmly connected to the fresh water inlet.
When started, the Manual Washing function opens the fresh water valve, flows water for a preset time period (set by "Manual washing time"),
and then stops.
With this, the manual washing is completed.
Perfomance check Perfomance press Enter
8-2-2.
Keep on pressing "Esc" for two seconds or longer
Press " " three times.
"Maintenance Mode" is set.
Press "Enter."
Starts to feed fresh water.
The remaining washing time (in seconds) is displayed on the lower left part of the screen.
Press "Esc."
"Main Menu" is displayed back.
This function is used to check whether a new sensor unit works normally (after replacement of the sensor unit).
The Operation Test Kit (separately sold) is required to use this function.
For details of the operating procedure, see the instructing sheet of the Operation Test Kit.