Test-Operation Method By The Automatic Operation Function ・・・・・・ Page - Fellow Kogyo FOCAS-2000 Instruction Manual

Page. 13
Operation
5
.
Test operation method by the Automatic operation function
5-2.
Use the Automatic Operation to test-operation the oil concentration detector after installing and constructing it or in the following cases:
when you want to operation the bilge pump and execute an alarm test including the three-way valve output signal.
when a water pressure of 0.03 MPa or higher can be applied to the sample water inlet.
The Automatic Operation enables you the following:
When a water pressure of 0.03 MPa or higher is applied to the sample water inlet, the oil concentration detector always starts operation. When
detecting a low water pressure (lower than 0.03 MPa) for a preset time period, the oil concentration detector ends the washing operation and
returns to the standby state.
The alarm operation test can be executed when the concentration is less than the specified oil alarm point during auto operation.
Test operation procedure by the Automatic Operation
With this, the test-operation check by the Automatic Operation is completed.
Check and make sure the bilge separator is ready to run or when both sample water and fresh water
can be supplied to the oil concentration detector. In the standby state while "Standby" and the
current time are displayed on the screen, the oil concentration detector automatically starts operation
when the bilge pump and the bilge separator runs or sample water of 0.03 MPa or higher is supplied
to the sample water inlet.
This screen is displayed for about 5 seconds and the auto operation starts.
"Warming up " is displayed on the bottom line of the screen.
The remaining time (in seconds) is displayed to the right side of "Warming up."
(Press "Esc" for 5 seconds or longer to stop the auto operation halfway.
However, the oil concentration detector starts to run again about 5 seconds later when the bilge
pump and the bilge separator is running or when the sample water pressure at the inlet is 0.03Mpa or
higher.
Shows an oil concentration during operation. This screen shows the state of the three-way valve
output signal and the measured oil concentration.
When the oil concentration is less than the oil alarm point (when "Alarm" is not output), you can
execute an alarm test including the three-way valve output signal.
Press "Enter" for 2 seconds or longer. The alarm test starts.
When the alarm test starts, the oil concentration detector artificially increases the oil concentration to
enable the alarm test. "sim" appears in the center of the upper row of the screen. The ppm value
"x" is increased by one each time you press " ."
You can reduce the value similarly by pressing " " but cannot reduce the value under the current
(
measured concentration value.)
When the measured oil concentration exceeds the oil alarm point (Alarm1 and Alarm2), the oil
concentration detector enters the alarm state and turns off the three-way valve output signal. You
can confirm the alarm operation. Both AL1 and AL2 lamps blink. The alarm test is disabled when
the oil concentration of the sample water goes over the oil alarm point in the test.)
Press "Esc" after confirming the alarm test.
5 minutes later with "Esc" unpressed, "sim" disappears from the screen and "Operation" returns.
"sim" disappears and "Automatic operation" returns. This screen shows the ON/OFF state of the
three-way valve output signal and the measured oil concentration.
When the bilge pump and bilge separator stop and the water pressure at the sample water inlet goes
below 0.03Mpa, the oil concentration detector ends operation and moves to the washing process.
The remaining time(in seconds) is displayed to the right of "washing."
When the washing operation ends, the oil concentration detector waits for judgment of whether the
inside of the detection tube is clean. "Wait Stable" appears and the remaining time (in seconds) is
displayed to the right of "Wait Stable."
After judging the detection tube is clean, the oil concentration detector returns to the standby state.