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Pressure Switch - 500(505)/18D Series

Pressure Switch - 500(505)/18D Series

Delivery Time : within 2 working days(depends on your quantity)

Sample Price : Depending on the quality demanded

Place of Origin : china

Category : Pressure Switches

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The Sensor of Switches utilize Diaphragm-Piston Conbination, 500/18D Switches use Diaphragm Sensor can be suitable for neutral gas, lubricating oil, light fuel ect. Fluid medium. 505/18D Switches use no-leak piston sensor, can be fit for lubricating oil, light fuel such neutral lube medium. The Set Point is adjustable, and its adjustable range is from 0.5Mpa to 40Mpa.
Working Viscosity: Ambient temperature: -25º C~+55º C
Medium Temperature: -25º C~+80º C
Mount Position: Pressure connection virtically downward (15° Inclination is allowed)
Protection Class of Enclosure: IP54
Anti-Vibration: Max: 100m/s2
Repeatablity Error: ‰¤ 2.5%
Working Life: 1x105
Electric Rating: AC 220V 6A(resistance)
(If special requirments is needed, please refer to our Application Handbook )
Ultra-compact designed control system, guarantee the switching frequence to be 100 times/min., and good perofrmance of vibration resistance.
Remarks: In the practice, even the temporal peak value of pressure, should no exceed the Max. Allowable Pressure.
I-means the connection is Female Screw,
P-means the connection is Flange
The Adjustment of Set Point
[Example] Choose Order No. 0882200 Switch, a contact signal is required to be generated when pressure falls to 8Mpa(The Decreasing Set Point), see steps as following:
To screw the Switch into connection of Oil Pressure Checkout Test Set(if the connection is Flange, then choose the Flange connection of the Checkout Test Set). Exert pressure on it for 2 minutes simulate its practical working situation, thereafter to make the setting.
Link the Out-put lead with Multimeter.
Screw-off the screws on the housing.
Add the pressure to 8Mpa, this value can be read from the standarded pressure gauge.
Loose the locknut, use socket screwwrench (Φ 5mm), clockwise rotate the Set-point Adjusting Bolt, to make the Set-Point become bigger, until it switches at 15Mpa.
Tighten the locknut, vering the testing pressure to make it change up and down arround 8Mpa, check if the Switch switches at 8Mpa when pressure falls, this value is the Decreasing Set Point need to be set, the correspondent Increasing Set Point to be 0.8Mpa plus 2.3Mpa(The Dead Band), namely 10.3Mpa(approximately).
Selection and Installation
*The Set Point must be within the aAdjustable Range, Dead Band is expressed as Typical at mid-range. Normally it is the 20% to80% of the Ajustable Range.
*If the switches are outdoor application, sufficient protections are necessary, for the severe variation of the ambient temperature, radiation of the sunlight, permeation of the corrosive gas or water, will influence the life of the switches.
*During the process of installation or disassembly, a spanner MUST be used to clip and tighten the sensor, absolutely avoid the countermovent between the sensor and housing of the switches(please refer to the drawings)
*Regarding those controlled fluid medium with peak value of pressure and plusation pressure, a damper can be installed at the connection, to eliminate negative influence
*On-Off current should not be greater than the Rating.
*If the connection of the Switches are threaded type, the depth for the pipe to go in should not exceed 12mm.
*During the process of installation or disassembly, a spanner MUST be used to clip and tighten the sensor, absolutely avoid the countermovent between the sensor and pipe.
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Set Point adjustable range          Mpa       Dead Band No Greater ThanMax. Allowable pressure* Mpa      Material of sensorProcess Connection     TypeConnection(F)  Weight       KgOrder Content No.
Lower limit of Set Point Range     MpaUpper limit of Set Point Range     MpaShellSealing RingPiston
500/18D Diaphragm Type Pressure Switch
-0.1¦00.0150.028AlNitrile RubberSteelIG1/4"0.20880100
-0.1¦00.0150.02P 0881100
0.02¦ 0881200
0.05¦ 0881300
0.1¦ 0881400
505/18D Piston Type Pressure Switch
0.5¦70.8240AlNitrile RubberSteelIG1/4"0.20882100
0.5¦70.82P 0883100
1¦161.23.5P 0883200
2.5¦251.54P 0883300
4¦401.84.560P 0883400

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