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9
.䎃 Troubleshooting
Ŷ Principal measures against failure
Symptom Possible cause Action / measures
No power supply Ɣ The oil concentration detector fuse was
blown out by an overvoltage on the oil
concentration detector.
Ɣ Check the supply voltage (90 to 240 V).
Turn off power to the oil concentration detector and
replace the fuse by a new one.
Inactive three-way valve Ɣ The three-way valve fuse was blown out
by an overload on the three-way valve
terminals.
Ɣ Check the cable between the oil concentration detector
and the three-way valve for short-circuit or damage.
Check the three-way valve for troubles. Replace the
fuse by a new one.
Asynchronous three-way valve and
Alarm1 operations
Ɣ An Alarm1 delay time has been set. Ɣ Check the setting data and ranges (see 6-2-1) and set
the Oil Alarm Delay 1 to "0 sec" (see "6-2-2. Setting
method").
䚚䎃
The Alarm1 output should work in synchronism with the
AL1 lamp.
䚚
You cannot set a delay for the three-way valve output
signal (VALVE).
Different Alarm1 and Alarm2
operations
Ɣ Oil alarm points and delay time set for
Alarm1 and Alarm are invalid.
Ɣ Correct the set values according to "6-2-2. Setting
method." To synchronize Alarm1 and Alarm2 operations,
the set values for Oil Alarm Points 1 and 2 of Oil Alarm
Delays 1 and 2 should be identical.
No alarm operation Ɣ The connection with the alarm panel and
cable connections may be wrong.
Ɣ The connected alarm panel may be
defective.
Ɣ The Alarm1/Alarm2 relay malfunctions.
Ɣ Check the cable connection. When the cable
connection is right, check cables for disconnection or
damage. Replace the cable if defective.
Ɣ Inspect the alarm panel.
Ɣ Check whether the terminal operation (output) of the oil
concentration detector is normal in the standby state
according to "7-1-6 Alarm Operation check."
Inactive measuring instrument
connected to the RECout terminal
Ɣ The connection of the measuring
instrument may be wrong or the
connection cable may be defective.
Ɣ The connected measuring instruments may
bedefective.
Ɣ RECout output failure
Ɣ Check the cable connection. When the cable
connection is right, check cables for disconnection or
damage. Replace the cable if defective.
Ɣ Inspect the connected measuring instruments.
Ɣ Check whether the terminal operation (output) of the oil
concentration detector is normal according to "7-1-4
RECout output check."
Inoperable switch Ɣ The operation switch malfunctions.䎃 Ɣ Check whether the switch button can be pressed.
The button may be locked by paint when the system is
installed and built. Remove paint if the button is locked
by paint and check whether the button is operable.䎃
䎃 Ɣ The oil concentration detector is frozen. Ɣ Press the RESET switch and make sure the clock ounts
up on the "Standby" screen. Then check whether the
button is operable.
No runnning
䎃
Ɣ The oil concentration detector is frozen. Ɣ Press the RESET switch and make sure the clock
counts up on the "Standby" screen. When the
pressure of water supplied from the bilge pump to the
sample water inlet becomes 0.03 MPa or higher, check
whether the oil concentration detector runs.
䎃 Ɣ The pressure may be low or the pressure
switch is disabled.
Ɣ When the pressure of water supplied from the bilge
pump to the sample water inlet becomes 0.03 MPa or
higher, check whether the oil concentration detector runs.
No clock count (in seconds) on the
LCD display screen䎃
Ɣ The oil concentration detector is frozen. Ɣ Press the RESET switch and make sure the clock
counts up on the "Standby" screen.
Ɣ When the oil concentration detector cannot be recovered by the above operations, call your local Fellow Kogyo distributor or Sales Division of
Fellow Kogyo.
%#76+10
In the maintenance works below, power to the oil concentration detector must be shut off to prevent electric shocks and
device failures.
Ɣ Demounting the operational log memory card, remounting the memory card, and replacing the clock backup battery.
(See "2-3-2 Terminal arrangement of terminal base and inside connection of FOCAS-2000.")
Ɣ Cleaning the sensor. (See "8-4 Cleaning the sensor (brush washing).")
Ɣ Cleaning the filter. (See "8-5 Cleaning the filter.")
Ɣ Replacing silica gel. (See directions attached to desiccant (silica gel) which is an optional parts.)
Ɣ Other works. (See the instruction sheets of the replacement parts if available.)
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