horiba LO-300, Инструкция по эксплуатации

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Troubleshooting
57
Tip
For the actions against setting value input error, input correct setting value by referring to“ Message
list ” (page 58).
LOW LEVEL LOW
Detection level
error (Detection
area error)
Light emission intensity of the
semiconductor laser decreases,
disabling to receive the laser
light.

Place a white paper under the optical
window, and check the laser light
emitting and scanning status.

When laser light is invisible or
scanning is not performed, contact us.
HIGH
LEVEL
HIGH
Detection level
error
(reflection light
error)
Upper limit error judgment criteria
is set to low (near the water level
of detection area)
Set the upper limit error judgment criteria
to a high value to the water level of
monitoring water surface (such as 21
mA).
Suspended objects of high
reflectivity such as aluminum foil,
vinyl, or PET bottles accumulate
on the detection area, receiving
excessively high laser light.
Remove the suspended objects from
detection area.
SYSTEM
ERROR
MTR
Instrument error
(Motor stop)
(Motor rotation
error
Stop due to motor fault or
abnormal rotation due to large
fluctuation of AC power frequency

Place a white paper just under the
optical window, and check the rotation
status of laser scanning light.

When the laser scanning light is not
rotating, contact us.
Instrument error
(Laser emission
stop) Deterioration of semiconductor
laser or fault of laser scanning
mechanism

Place a white paper just under the
optical window, and check the laser
emitting and scanning status.

When laser light is invisible or
scanning is not performed, contact us.
TEMP
Instrument error
(Internal
temperature
error)

Temperature inside the
detector abnormally increased
due to outside heat, direct
sunlight, and radiated heat
source

Temperature inside abnormally
increased due to fault of the
detector

Attach a steam protection hood
optionally available for a place of direct
sunlight or radiated heat source.

When no problem is found for the
installation environment, contact us.
LDL
Instrument error
(Laser
deterioration) Operation period has reached the
specified length from the start of
use (including laser replacement)
Laser needs to be replaced. Contact us.
CPU error LED in the
left of screen lights
up
Instrument error
(CPU error) CPU or memory operation is
abnormal

Restart the detector (power restart).

When the problem persists even after
restart, contact us.
Message History Error Main cause Correspondence method