Panasonic FD-F8Y Instruction Manual

INSTRUCTION MANUAL
Liquid Level Detection Fiber FD-F8Y
MJE-FDF8Y No.0099-10V
Thank you very much for purchasing Panasonic products. Please read this Instruction
Manual carefully and thoroughly for the correct and optimum use of this product.
Kindly keep this manual in a convenient place for quick reference.
Please refer to the instruction manual enclosed with the fiber sensor amplifier.
1
SPECIFICATIONS
Type Refelctive
Item Model No. FD-F8Y
Applicable fiber
FX-301(P), FX-311(P)
amplifiers
Sensing object Liquid (Note 1)
Repeatability 0.5mm or less (with water)
Allowable Tube: R40mm or more (Do not bend 26mm length from the tip)
bending radius Fiber cable: R15mm or more
Fiber cable length 2m free-cut [Do not cut the tube (Note 2)]
Ambient temperature
-40 to +125 (No dew condensation or icing allowed), Storage: -40 to +125
(Note 3) (Note 4)
Ambient humidity 35 to 85% RH, Storage: 35 to 85% RH
Ambient pressure
-49 to +490kPa
(Note 4)
Material Tube: Fluorine resin, Fiber sheath: Polypropylene
FX-CT2 (Fiber cutter): 1 pc.
Accessory
FX-AT3 (ø2.2mm fiber attachment): 1pc.
Notes: 1) Unclear liquid may not be sensed stably.
2) 1,000mm from the amplifier insertion end is the cutting range.
3) Liquid being detected should also be kept within the rated ambient
temperature range.
4) The ambient temperature and pressure under which these devices are used
are set separately.
For usage with both of these at or near the maximum permissible value,
please contact our office.
2
CAUTIONS
Take care that unclear liquid may not be sensed stably.
Take care that the tube may stretch by maximum 2% of the total length if it is used
at a high temperature.
Bending radius of the fiber cable must be R15mm or more (tube: R40mm or
more). However, do not bend 26mm length from the tip.
If the bending radius is smaller than the specified value, the sensing performance
may deteriorate.
Do not use the fiber at places having intense vibrations, as this can cause
malfunction.
Keep the fiber head surface intact. If it is scratched or spoiled, the detectability will
deteriorate.
Ensure that any strong extraneous light is not incident on the receiving face of the
fiber head.
Do not apply excessive tensile force to the fiber cable.
Take care that the sensor is not directly exposed to fluorescent light from a
rapid-starter lamp or a high frequency lighting device, as it may affect the sensing
performance.
3
MOUNTING
Use a commercially available fluorine resin joint, etc.,
to install FD-F8Y.
Fluorine resin joint
4
CUTTING FIBER CABLE
The fiber cables should be cut off at the ends with the fiber cutter FX-CT2
(accessory) before insertion into the fiber amplifier.
For the usage of the fiber cutter (FX-CT2), refer to the instruction manual
enclosed with this product other than this instruction manual.
Do not scratch the fiber sheath while cutting the fluorine resin tube.
Possible
10
mm
cutting range
Protective tube Fiber cable
5 SENSITIVITY SETTING
Do not move or bend the fiber cable after the sensitivity setting. Detection may
become unstable.
When using the FX-301(P)
<2-level teaching>
This is the method of setting the threshold value by teaching two levels,
corresponding to the immersed and not immersed conditions. Normally, setting is
done by this method.
Step Display Description
The fibers are mounted in the tank.
Press MODE key to light up MODE indicator /
TEACH (yellow).
Press jog switch in the fiber immersed condition.
If the teaching is accepted, the read incident
light intensity blinks in the digital display.
MODE indicator / TEACH (yellow) blinks.
Press jog switch in the fiber not immersed
condition.
If the teaching is accepted, the read incident light intensity blinks in the digital
display and the threshold value is set at the mid-value between the incident
light intensities in the immersed and the not immersed conditions. After this,
the judgment on the stability of sensing is displayed.
In case stable sensing is possible: ' ' is displayed. Stability indicator
(green) blinks.
In case stable sensing is not possible: ' ' is displayed. Stability indicator
(green) is off.
The threshold value is displayed.
' ' blinks in the digital display.
The incident light intensity appears in the digital dispaly and the setting is
complete.
<Limit teaching>
This is the method of setting the threshold value by teaching only the water absent
condition (not immersed condition).
Step Display Description
The fibers are mounted in the tank.
Press MODE key to light up MODE indicator /
TEACH (yellow).
Press jog switch in the not immersed condition.
If the teaching is accepted, the read incident
light intensity blinks in the digital display.
MODE indicator / TEACH (yellow) blinks.
Turn jog switch to the '-' side.
If jog switch is turned to the '-' side, ' ' scrolls (twice)
the digital display from left to right, and the threshold level is
shifted to a value approx. 15% lower (higher sensitivity)
than that set at . (Note)
High
OFF
Incident light intensity
100%
with fiber not immersed
15%
Threshold value
ON
Low
0
Turn to '-' side
After this, the judgment on whether the setting shift amount can be shifted or
not is displayed.
In case shifting is possible: ' ' is displayed.
In case shifting is not possible: ' ' is displayed.
The threshold value is displayed.
' ' blinks in the digital display.
The incident light intensity appears in the digital dispaly and the setting is
complete.
Note: The approx. 15% amount of shift is the initial value. The amount of shift can be
changed in the PRO mode from approx. 5 to 80% (5% step).
Refer to 'our web site (https://industry.panasonic.com/)' for the setting method.
When using the FX-311(P)
Adjust the sensitivity, observing the
operation indicator (orange).
Sensing
However, since the condition for lighting
condition
up of the indicator depends on the
combination of the sensing condition
Immersed
and selected operation for L/D-ON,
verify it from the table on the right.
Not
The sensitivity adjuster is a 12-turn
immersed
potentiometer. The maximum sensitivity
is obtained by turning it fully clockwise.
The pointer shows the present sensitivity level.
Press <Assist function>
This product incorporates an 'assist function', which helps to easily search the
optimum sensitivity position by blinking of the pointer.
In order to make 'assist function' effective, switch the operation selection switch in the
order L-ON (not immersed ON) D-ON (immersed ON)
Press
Notes: 1) 'Assist function' turns off automatically once the sensitivity adjustment has
been completed.
2) In case 'assist function' is not to be used, set the operation selection switch
to D-ON (immersed ON) and wait for 2 sec., or more, to make 'assist
Press
function' ineffective.
Step Sensing method Operation
Make sure that the operation
selection switch is set to
L-ON (not immersed ON). Turn the sensitivity adjuster fully
In case 'assist function' is to counterclockwise.
be used, switch the operation (Minimum sensitivity)
selection switch in the order
of L-ON D-ON L-ON.
In the fiber not immersed condition, slowly
Fiber not immersed
turn the adjuster clockwise and find the point
where the sensor is switched ON.
The pointer blinks once at the point
. (Note 1)
In the fiber immersed condition, slowly turn
the adjuster further clockwise until the sensor
goes into the ON state again. Once it is
Fiber immersed
switched on, turn the adjuster counterclock-
wise a little and find the point
switched OFF. The pointer blinks twice at the
point . (Note 1)
If the sensor does not go into the ON state,
Press
MAX is the point
Turn the adjuster towards the point
the point slowly. The pointer starts blinking
when it approaches the optimum sensitivity
point and blinks faster at the optimum
sensitivity point for 3 sec. This point is the
Press optimum sensitivity point. (Note 2)
Select either L-ON (not immersed ON) or D-ON (immersed ON) according to your application.
When 'assist function' is not used, the pointer does not blink.
Notes: 1)
2) When 'assist function' is not used, the middle point of
as the optimum sensitivity point.
3) In order to protect the mechanism, the sensitivity adjuster idles when over
Turn to '-' side
turned, which may result in a backlash of 1 to 2 divisions.
4) Depending upon the sensing conditions, stable sensing may be possible at a
position which is slightly shifted from the optimum sensitivity point.
Troubleshooting
In case output chatter is caused by a liquid drop on the fiber head:
FX-301(P):
Use the limit teaching, or the timer function.
FX-311(P):
Turn the sensitivity adjuster further clockwise to raise the sensitivity level, or use
the timer function.
In case the tank bottom, etc., gets sensed:
Readjust the sensitivity after setting at the actual depth at which detection is to be
done.
: Lights up, : Lights off
Operation
MODE
indicator
L-ON (ON when not immersed)
D-ON (ON when immersed)
L-ON (ON when not immersed)
D-ON (ON when immersed)
L-ON (not immersed ON).
Sensitivity
indicator
0 MAX
ON
0 MAX
OFF
where it is
0 MAX
ON
.
from
Optimum point
0 MAX
and is regarded
Panasonic Industry Co., Ltd.
1006, Oaza Kadoma, Kadoma-shi, Osaka 571-8506, Japan
https://industry.panasonic.com/
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Panasonic Industry Co., Ltd. 2024
April, 2024 PRINTED IN JAPAN