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' Do not use this product under the environment including the following chemi-

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' Unclear or highly viscous liquid may not be detected stably.

 

' Take care that the sensing performance may deteriorate depending on 

 """

 

' Take care that the protective tube may stretch by maximum 2% of the 

total length if it is used at a high temperature.

 

' !""  """ 7 

performance can deteriorate. 

 

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the sensing performance may deteriorate.

 

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from a rapid-starter lamp, a high frequency lighting device or sunlight, 
etc., as it may affect the sensing performance.

 

' Do not use the product at places having intense vibrations, as this can 

cause malfunction.

 

' Do not use the joint in any kind of liquid. 

 

' The joint is made of resin. Take care of following items when using it.

| If the union nut on the joint is retightened many times, load is applied 

on the threads and secure tightening will not be possible.

| Take care that using a deformed ferrule may cause leaks.
| Make sure that stress by forcible bend or pulling is not applied di-

rectly to the joint. Liquid may leak from a tank or the joint may come 
off from a tank due to breakage or deform of the joint.

 

' Y   7!  

the joint 24 hours later to prevent leaking. Tighten the joint under the 
condition that a pressure is not applied to a tank and the liquid tempera-
ture is between -10 to +40°C.

 

' If the product is used under the environment that there is some tempera-

ture change, the joint may get loose. In that case, further tighten the joint 
not applying the pressure to the tank and keeping the liquid temperature 
between -10 to +40°C.

 

' If liquid leaks from a tank, tighten the joint since it may be loose. Tighten 

the joint under the condition that a pressure is not applied to a tank or 
the condition that the liquid temperature is between -10 to +40°C.

CAUTIONS

7

SPECIFICATIONS

6

Type

#`"R

Item

Model No.

FD-F41Y

FD-HF40Y

Z"

FX-300

($7

Sensing object

/O(

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J?

Applicable bending 
radius

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Fiber cable length

2m free-cut

Ambient temperature
(&7?

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Storage: -&J~^J3

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"
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Ambient humidity

??‚#{7@G??‚#{(€

Ambient pressure
(?7^

-49 to +490kPa

Material

Protective tube: Fluorine resin
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FD-F41Y

Accessory

FX-CT3

"G$"

FX-AT4

9$J" G$

(G $  ""

FX-301B

„7

FX-301G

„7

FX-301H

„

FX-301-F

„

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range.

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set separately. For usage with both of these at or near the maximum permissible 
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ambient temperature is +85

°C

^ !"  " -49 to 

+490kPa, the product may break.

PROTECTION OF THE PROTECTIVE TUBE END

5

 

' If liquid or gas enters into the protective tube from its end, the product 

can malfunction or break.

 

' Liquid preventive joint 

MS-FX-01Y

   R  

The mounting method is as follows.

<How to mount>

1. Assemble the liquid preventive joint as 

   

  However, when tightening the union nut on 

the body, keep a space so that the protective 
tube can be inserted.

Union nut

 

Body

2. Insert the liquid preventive joint which is as-

     $      

3. Insert the fibers into the two holes on the 

"!  
protective tube.

Protective tube

4. Insert the resin washer and the union nut 

 

5. Adjust the end of the protect tube with the 

center position of the liquid preventive joint. 
Tighten the union nut on the black ferrule side 
 Q 7 -
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6. Tighten the union nuts on the white ferrule 

side by hand till it is firmly fixed by hand. 
 7  $$%
by using a wrench.

Note:  Do not tighten the union nut on the white ferrule side before tightening the union nut on 

 "!""

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Fiber

#

SENSITIVITY ADJUSTMENT

4

 

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the sensitivity adjustment.

 

' Do not move or bend the fiber cable after the sensitivity adjustment.  

Detection may become unstable.

<Example 1> When using in combination with FX-301(P)

<2-point teaching>

 

' This is the method of setting the threshold value by teach-

ing two points, corresponding to the not immersed and im-
mersed conditions. Normally, setting is done by this method.

1. Press the jog switch in the not immersed condition to read 

incident light intensity.

Immersed 
condition

Not immersed 
condition

2. Press the jog switch in the immersed condition to read inci-

dent light intensity.

3.  The setting is done.

Troubleshooting

 

'

   

 FX-301

P

GK "  "

 FX-311

P

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duce the sensitivity level or use the timer function.

 

'

 

# R7"  

<Example 2> When using in combination with FX-311(P)

1. In the not immersed condition, slowly turn the sensitivity ad-

""!  
switched ON. 

Not immersed 
condition

Immersed 
condition

2. In the immersed condition, slowly turn the adjuster further 

clockwise until the fiber amplifier goes into the ON state 
again. Once it is switched ON, turn the adjuster counter-
""!  " *

3. The position at the middle of points described in the step 1 and 2 is the optimum 

sensing position. Turn the sensitivity adjuster to the optimum sensing position.

4. The setting is done.

Note:  In order to protect the mechanism, the sensitivity adjuster idles when over turned which 

may result in a backlash of 1 to 2 divisions.

<Limit teaching>

 

' This is the method of setting the threshold value by teaching 

     "    !  
"

1. Press the jog switch in the not immersed condition to read 

incident light intensity.

Not immersed 
condition

2. Turn the jog switch to “-= 

to lower the threshold value.

(G   

    #   
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tion Manual for details of the shift 
amount and the setting method.

3.  The setting is done.

0

100%

ON

OFF

Incident light in-
 
not immersed

15%

(

High

Low

Threshold 

value

Threshold value

Union nut

Union nut

5

6

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