Ion balance manual adjustment mode, Ion balance adjustment function, 2 ion monitor functions – KEYENCE SJ-M200 User Manual
Page 9: Ion monitor functions
8
3-1
SJ-M Series Operations
■ Tube Installation Setting
Advance to the tube head setting from the Select mode in page 7,
and select either of the followings.
(1) Normal nozzle (green) (Default)
(2) Tube nozzle (red)
■ Initialization of settings
Returns settings to their defaults.
(1) Press
,
or
for a short time:
Returns to the Select mode without initializing the settings.
(2) Hold down
for at least 2 seconds:
Initializes the settings and returns to the Select mode.
When settings are initialized, the ion monitor indication moves
towards both ends of the display.
Blink
Blink
Select an appropriate nozzle according to the
head. Incorrect setting may cause accidents or
malfunction. When the tube nozzle is selected, the
ion level alarm will not be output correctly.
Important
1
Blink
Tip
3-1
SJ-M Series Operations
Ion Balance Manual Adjustment Mode
In this mode, you can adjust the zero point, the point for reference for the I.C.C. function.
Ion Balance Adjustment Function
The SJ-M Series automatically senses the charged level of the target body by the I.C.C. function to
automatically control the generated amount (balance) of plus and minus ions.
The zero point, the point for reference for the I.C.C. function, is adjusted before the SJ-M Series is
shipped from the factory. However, in some environments, the zero point sometimes drifts. If this
reference zero point drifts, adequate static elimination cannot be maintained. For this reason, you can
adjust the SJ-M Series to the desired zero point.
Do not turn the power OFF while the ion balance is being adjusted (about 1
minute).
■ Setting the ion balance
1
Hold down
for at least one second to enter the ion
balance manual adjustment mode.
The ion balance indicator blinks.
CAUTION
Hold down for at
least 1 second.
3-1
SJ-M Series Operations
Holding down
for about
three seconds when setting
the ion balance clears the
preset ion balance zero
point and returns the ion
balance to its default
setting.
2
Set the ion balance using
.
The LED on the ion monitor corresponding to the set value lights.
3
Press
to end ion balance setup.
Note
During this operation,
the ion monitor indication
moves towards both ends
of the display.
Key
Function
Key
Shifts the zero point in the + direction.
Key
Shifts the zero point in the – direction.
Blink fast
The mode changes to the Run mode.
After you have finished setting up the ion balance, the ion
balance indicator will blink fast for about 1 minute, indicating
that the ion balance setup is being written to memory.
After you have finished setting up the ion
balance, do not change the ambient
environment for about 1 minute. If you do, the
zero point sometimes cannot be set accurately.
Note
3-2
Ion Monitor Functions
This section describes the ion monitor functions of the SJ-M Series.
Ion monitor functions are enabled in the Run mode.
Ion Monitor Functions
The charged level of the target object and the level of ions generated from the static elimination head
are indicated on the ion monitor.
The ion monitor indication can be switched by
.
■ Charge monitor
This monitor indicates the charged and decharged
states of the target object.
The indication of this monitor fluctuates towards the
+ and – sides according to the charged level. The
further the indication is away from the center LED,
the larger the charged level. When static elimination
is completed, the indication returns to the center
LED so that you can easily tell how static
elimination is progressing.
The ion balance indicator lights when the charge
monitor is operating.
■ Ion level monitor
This monitor indicates the level of ions being
generated by the Static Elimination Head.
The level of plus ions being generated is indicated
on the upper side, while the level of minus ions is
indicated on the lower side. The further the
indication is away from the center LED, the larger
the level of ions. In a state where ions are being
sufficiently generated, both ends of this monitor light
(green).
The ion balance indicator lights when the ion level
monitor is operating.
Red
Orange
Orange
Green
Orange
Orange
Red
Green
Green
Orange
Red
Orange
Green
Green
Max.
+ ion
Min.
Min.
- ion
Max.