horiba LO-300, Instruction Manual

Page: 31 / 81

Overview
17

Oil film alarm (OIL ALARM)
The oil film alarm is triggered when the detection area which laser light reflection level is over
the set detection level exceeds the detection area setting (Alarm), and when the continuous
judgment time passes.
For setting the judgment criteria, refer to “ Detection level setting ” (page 35), “ Detection area
setting ” (page 36), and “ Continuous judgment time setting ” (page 37).
The screen when the oil film alarm occurs is as follows.
Fig. 9 Oil film alarm screen

Upper limit error (HIGH LEVEL)
The upper limit error occurs when the detection level exceeds the upper limit setting for 30
seconds (fixed) or more. For setting the judgment criteria, refer to “ Upper/lower limit level
setting ” (page 40).
The screen when the upper limit error occurs is as follows.
Fig. 10 Upper limit error screen
[OIL ALARM] is displayed.
Present detection level lights.
Present detection area lights.
Contact output release button is dis-
played.
[HIGH LEVEL] is displayed.
Current detection level is col-
ored in the unit of 1 mA. For 20
mA or more, it is colored up to
20 mA.
All is blank. (no color)
Contact output release button is
displayed.