INSTRUCTION MANUAL
Safety Liquid Leakage Sensor
SQ4-A
series
MJE-SQ4A No.0050-09V
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.
English and Japanese are original instructions.
WARNING
● This product is a sensor for detecting leak of fluids.
●
When this product is used with safety devices, construct the system such that
the device itself.
1
ATTENTION MARKS
This instruction manual employs the following attentions marks “
WARNING
”, and
“
CAUTION
”, depending on the degree of the danger.
WARNING
If you ignore the advice with this mark, death or serious injury could result.
CAUTION
If you ignore the advice with this mark, injury or material damage could result.
2
SAFETY PRECAUTIONS
●
Use this device as per its specifications. Do not modify this device since its
functions and capabilities may not be maintained and it may malfunction.
●
This device has been developed / produced for industrial use only.
●
This device is suitable for indoor use only.
●
Use of this device under the following conditions or environment is not presupposed.
1) Operating this device under conditions and environment not described in this manual.
2)
Using this device in the following fields: nuclear power control, railroad, aircraft,
automobiles, combustion facilities, medical systems, aerospace development, etc.
●
Use this device by installing suitable protection equipment as a countermea-
sure for failure, damage, or malfunction of this device.
●
Before using this device, check whether the device performs properly with the
functions and capabilities as per the design specifications.
●
In case of disposal, dispose this device as industrial waste.
WARNING
♦
Machine designer, installer, employer and operator
•
The machine designer, installer, employer and operator are solely responsi-
ble to ensure that all applicable legal requirements relating to the installation
and the use in any application are satisfied and all instructions for installa
-
tion and maintenance contained in the instruction manual are followed.
•
Whether this device functions as intended to and systems including this de-
vice comply with safety regulations depends on the appropriateness of the
application, installation, maintenance and operation. The machine designer,
installer, employer and operator are solely responsible for these items.
•
The engineer would be a person who is appropriately educated, has wide-
spread knowledge and experience, and can solve various problems which
may arise during work, such as a machine designer, or a person in charge
of installation or operation etc.
•
The operator should read this instruction manual thoroughly, understand its
contents, and perform operations following the procedures described in this
manual for the correct operation of this device.
•
In case this device does not perform properly, the operator should report this to
the person in charge and stop the machine operation immediately. The machine
must not be operated until correct performance of this device has been confirmed.
♦
Installation
•
There is the detection mount difference by directivity of a liquid leakage. When there
are a direction from which a liquid leakage happens, and an inclination, please in-
stall the nose-of-cam side (opposite side of a cable) of a sensor towards a top.
•
Use the mounting bracket
MS-SQ4-
□ (optional) which suits the liquid to de
-
tect. If selecting mounting bracket is wrong, it does not work properly.
•
Periodical checking of operation is recommended with the liquids which are
not dangerous (water, alcohol, etc.).
•
The amount of detection may change with the conditions of the installation surface.
•
Be sure to use the mounting bracket
MS-SQ4-
□ (optional) when installing this device to avoid
human error, etc. Reliable detection cannot be guaranteed when this sensor is used alone.
• After installing this product, fix the cable at 100mm of base of this product on floor. Use the
material which does not be effected by the chemical liquid for the fixing bracket for cable.
♦
Wiring
•
In case dangerous operation of the system installed this product by no wir-
ing to ground is not considered , it may cause serious injure or death.
•
To avoid turning the power ON by no wiring to ground, wire it to ground 0V
side when using PNP and wire it to 24V when using NPN.
♦
Environment
•
Avoid using this device in an explosive atmosphere because this product
does not have an explosive-proof protective construction.
•
Do not use a mobile phone or a radio phone near this device.
•
In case this device is used where electrostatic charge is present, use a
metal leak pan, which should be connected to an actual ground.
•
Do not install this device in the following environments.
1) Areas exposed to intense interference (extraneous) light such as high-
frequency fluorescent lamp (inverter type), rapid starter fluorescent lamp,
stroboscopic lights, flash beacon lights or direct sunlight.
2) Areas with high humidity where condensation is likely to occur
3) Areas exposed to too much steam or dust. Areas exposed to corrosive or explo-
sive gases. And do not use this device where oil or grease splashes to this device
4) Areas exposed to vibration or shock of levels higher than that specified.
♦
Maintenance
•
When using chemical liquid, use proper protections such as groves, masks,
goggles, helmets etc. When using protections, me sure to read manuals of
them and use properly.
• Dispose or reinstall in different environment, flush with DI water.
3
STANDARDS / REGULATIONS
●
This product complies with following standards / regulations.
<International Standard>
IEC 61508-1 to 7(SIL1), EN ISO 13849-1: 2008 (Category 1, PLc)
IEC 60947-5-2 (Note)
Note: The conformity to IEC 60947-5-2 for this device has been evaluated by ourselves.
<Regulations in Korea>
S1-G-1-2009, S2-W-5-2009
●
This product is pursuant to following standard.
<SEMI standard>
SEMI-S2-0310a
4
PART DESCRIPTION
Detection output
indicator (Red)
Detection leakage
and wrong installation:
Light up
Detection auxiliary output indicator (Orange)
Initial detection, leakage detection and
wrong installation: Light up
Detection output indicator (Green)
Normal or Initial detection: Light up
CAUTION
In case of installation error, detection output indicator (red) and detection auxil-
iary output indicator (Orange) light up
5
MOUNTING
CAUTION
Keep enough space for maintenance when mount-
ing this product.
Space
Mounting method
1.
Mount the mounting bracket set
MS-SQ4-□
(optional)
with M4 stud-bolts or adhesive.
<Mounting with M4 stud-bolts>
1-1
Weld the M4 stud-bolts (length: 10mm or
more) to your system.
1-2
Insert the M4 stud-bolts (length 10mm or more)
welded on the user’s facilities into the mounting
hole of the mounting bracket and screw with an
M4 nut (purchase separately). The tightening
torque should be 0.98N·m or less.
<Mounting the PVC mounting bracket with adhesive>
1-1
Put the adhesive to underside of the mounting
bracket and stick it on surface of the system.
Thickness of the adhesive after sticking is set
to 0.1mm or less. And use adhesive for vinyl
chlovide (PVC).
Notes: 1) If the excess adhesive from the bottom surface of the exclu
-
sive mounting bracket is remained, the detection capability
may be affected.
2.
The attachment is set according to A part of the
mounting bracket.
3.
Inserts from a top by holding knob part. Then
press in downward in the attachment.
Notes: 2) In case the attachment incline on the floor, malfunction can be
occurred. Also, malfunction can be occurred by changing of the
shape of attachment and scratch or dust etc.
M4 nut
M4 stud-bolt
Mounting
bracket
Adhesive face
Mounting
bracket
3.
Press
Attachment
2.
Insert
A part
Chase
This
product
Knob part
Dismounting method
1.
Hold the knob part of this product and pull out
from mounting bracket upward.
Notes: 1) When pulling out this product, it may cause break of cables. Be
careful.
2) When detaching part, do not use tool etc. Malfunction can be
occurred by changing of the shape of the attachment and scratch
etc.
2.
Pull out the attachment upward from the mounting
bracket.
3.
In case the mounting bracket is mounted with the
M4 stud-bolts, remove M4 nuts.
In case the mounting bracket is mounted with the
M4 stud-bolts, do not remove.
Knob part
Attachment
This
product
1.
Pull out
2.
Pull out
6
I/O CIRCUIT DIAGRAMS
●
NPN output type
Main circuit
(Brown) +V
(Black) Detection output
(White) Detection auxiliary output
+
-
12 to 24V DC
±10%
Load
(Blue) 0V
Load
056 222 38 18
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AG
