JT Pressure Switches
Uploaded by
PHÁT NGUYỄN THẾJT Pressure Switches
Uploaded by
PHÁT NGUYỄN THẾALA Industries Limited
1150 Southpoint Drive, Ste. D
Valparaiso, IN 46385-6236
Tel: 219-465-4197
Toll Free: 877-419-8536
Fax: 219-477-4194 www.yuken-usa.com
JT-02-*-10 Semiconductor Type Pressure Switches
Th e s e pr e ssu r e swi t ch e s h a v e bu i l t -i n
electronic circuits on a semiconductor pressure
sen sor . An open colle ct or in sulat ed by a
photocoupler has been used for the output.
Since the u se of semi con duct ors has put
movable parts away from the sensor section,
high reliability and durability can be obtained.
The se pr essure switch e s are suit abl e for
applications that require not only compact,
light weight and vibration-proof features, but
are also a better substitute to conventional
p r e s s u r e s w i t c h e s .
Model Number Designation
J T -02 -100 -10
Series Type of Valve Max. Pressure Set- Design
Number Mounting Size ting (PSI) MPa Number
J: Semicon-
35: 508 (3.5)
ductor Type T: Threaded
02 100: 1450 (10) 10
Pressure Connection
350: 5082 (35)
Switch
Design numbers are subject to change, but installat ion dimensions remain as
shown for design numbers 10 through 19
Ratings
Description Model No. JT-02-35-10 JT-02-100-10 Jt-02-350-10
Max. Operating Pressure PSI (MPa) 1450 (10) 1450 (10) 5082 (35)
Proof Pressure PSI (MPa) 2904 (20) 2904 (20) 7623 (52.5)
Pressure Setting Range PSI (MPa) 14.5-508 (0.1-3.5) 145-1450 (1-10) 508-5082 (3.5-35)
Pressure Setting (ON Pressure Setting) Single Adjustment ON Trimmer Setting (Variable Res istor)*
Single Adjustment DIFF Trimmer Setting (-1 to –10% of the ON Presure
Differential Pressure Setting (OFF Pressure Setting)
Setting)*
Sign on act. When the ON Pressure, the LED Indicator Lights
Open Collector (Photocoupler Insulated) Maximum Operating Voltage: 35
Output Source
VDC; Maximum Current: 100 mA.
10 to 28 VDC (ripple included); A constant-voltage power supply must be
Power Source
used. Current consumption: 10 mA.
Insulat ion Resistance 100 MΩ or more
Response Time 20 ms 20 ms (Damper Contained)
Repeatability Approximately 0.5%
Operating Temperature Range Fahrenheit (Celsius) -24° to +158° F (-20° to +70° C)
50° F (10° C) 1% of less of the maximum operating pressure relat ive to
Setting Fluctuation with Temperature Drift
50° F (10° C) change
Storage Temperature Range Fahrenheit (Celsius) -80° to +158° F (-20° to +70° C)
Dust/Water proofness IP54 (JIS C 4520—JIS C 0920)
Vibration Resistance 10G (JIS C 3025)
Shock Resistance 10G
Mass 6 oz (175 g)
* Trimmer Rotation Angle 0° to 230°
** IP54 Indicates the protection form and protection grade of the housing structure in conformity with the IEC529 (International
Electrotechnical Commission)
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JT-02-*-10 Semiconductor Type Pressure Switches
Hydraulic Fluids Care in Application
• Types Of Hydraulic Fluid Voltage-proof test should not be carried out
Petroleum base oil as semiconductor has been used
Phosphate ester type fluids
Polyor ester type fluids • Recommended Viscosity and Oil
Water glycol type fluids Temperatures
Water in oil emulsion type fluids Viscosity ranging between 15 and 400 cSt
(mm2/s)
Oil Temperature between -80° to +158° F
(-20° to +70° C)
Use Hydraulic fluids which satisfy the
recommended viscosity and oil temperature
given above.
Mounting Dimensions
Adjustment
1. Before starting, turn the ON and DIFF trimmers
fully clockwise (Trimmer Rotation Angle: 0° -
230°).
2. Turn on the power.
3. <ON pressure setting>
Apply required pressure to the switch. Turn ON
trimmer slowly counterclockwise and stop it
when LED indicator lights, ON setting obtained.
4. <Differential pressure setting>
Gradually reduce pressure to obtain the
required OFF pressure. Then, turn DIFF
trimmer counterclockwise slowly and stop it
when LED indicator goes off. The OFF setting
is now obtained.
5. Make sure if “ON” or “OFF” setting is correct by
working of LED indicator when applying or
reducing pressure repeatedly several times.
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Application Examples of Electrical Circuit
• Output of Semiconductor Type Pres- • Direct Relay Drive
sure Switch (Internal Circuit) 1. Use relay operable at 100 mA or
lower.
2. Connect surge voltage absorption
diode (D) in parallel with the relay
coil.
3. Connect positive diode (D) be-
tween the white and green wires.
• Connection to Sequential Controller • The usage below is possible because
output circuit is insulated by a
photocoupler.
1. When AND circuit Two Pressures.
The sequential controller is signaled only
when pressure switches No. 1 and 2 are
both ON.
2. When OR circuit two pressures
The sequential controller is signaled
when either of pressure switches No. 1
and 2 is ON.
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Application Examples
• For hydraulic circuit pressure increase/ • For fatigue tester or other instrument
decrease monitoring or alarming. test counting.
• For actuator stroke completion • For simplified measurement.
confirmation or work chuck completion Hydraulic circuit shock pressure can
signaling. easily be measured (The pressure can be
estimated by locating the switch ON
point at differing ON settings.)
• For accumulator charge control. • For use under severe environmental
conditions. Operable in places where
great vibration occurs or the humidity is
high.
Brochure Layout by Kevin Hagen—July 2004
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