Basic Info.
Number of Switch
Single Control Switch
Structure
Power Built-in Type
Explosion-proof Type
Non Explosion-proof
Contact Type
Type a Contact
Detection Method
Retro-reflective Mode
Certification
ISO9001, CE
Working Viscosity
<1× 10-3m2/S
Ambient Temperature
-25o C~+55o C
Medium Temperature
-25o C~+80o C
Mount Position
Pressure Connection Virtically Downward
Protection Class of Enclosure
IP54
Anti-Vibration
Max: 100m/S2
Repeatablity Error
≤ 2.5%
Electric Rating
AC 220V 6A(Resistance)
Product Description
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.
(If special requirments is needed, please refer to our Application Handbook )
Features
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
| Dead Band Non-Adjustable |
| Set Point adjustable range Mpa | Dead Band No Greater Than | Max. Allowable pressure* Mpa | Material of sensor | Process Connection Type | Connection(F) | Weight Kg | Order Content No. |
| Lower limit of Set Point Range Mpa | Upper limit of Set Point Range Mpa | Shell | Sealing Ring | Piston |
| 500/18D Diaphragm Type Pressure Switch |
| -0.1…0 | 0.015 | 0.02 | 8 | Al | Nitrile Rubber | Steel | I | G1/4" | 0.2 | 0880100 |
| -0.1…0 | 0.015 | 0.02 | P | | 0881100 |
| 0.02…0.2 | 0.02 | 0.04 | I | G1/4" | 0880200 |
| 0.02…0.2 | 0.02 | 0.04 | P | | 0881200 |
| 0.05…0.8 | 0.04 | 0.13 | I | G1/4" | 0880300 |
| 0.05…0.8 | 0.04 | 0.13 | P | | 0881300 |
| 0.1…1.6 | 0.06 | 0.24 | I | G1/4" | 0880400 |
| 0.1…1.6 | 0.06 | 0.24 | P | | 0881400 |
| 505/18D Piston Type Pressure Switch |
| 0.5…7 | 0.8 | 2 | 40 | Al | Nitrile Rubber | Steel | I | G1/4" | 0.2 | 0882100 |
| 0.5…7 | 0.8 | 2 | P | | 0883100 |
| 1…16 | 1.2 | 3.5 | I | G1/4" | 0882200 |
| 1…16 | 1.2 | 3.5 | P | | 0883200 |
| 2.5…25 | 1.5 | 4 | I | G1/4" | 0882300 |
| 2.5…25 | 1.5 | 4 | P | | 0883300 |
| 4…40 | 1.8 | 4.5 | 60 | I | G1/4" | 0882400 |
| 4…40 | 1.8 | 4.5 | 60 | P | | 0883400 |
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.
Address:
Guohe Industrial Park, Menghe Town, Xinbei District, Changzhou, Jiangsu, China
Business Type:
Manufacturer/Factory
Business Range:
Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters
Company Introduction:
Changzhou Tianli Controller Manufacturing Co., Ltd.Is a ISO9001:2000 proved high-Tech.Enterprise.We are professional in manufacturing products includes:Pressure/Differential Transmitters, Indicating Pressure Switches, Two-level Pressure Switches, Stainless Pressure Gauges, Shakeproof Pressure Gauge, etc.We serve a countrywide market of oil and gas, chemical, petrochemical, chemical fiber, power industries, metallurgy, medical, light industry, telecommunication industries and Self-check & Control center of refregrating equipment, Self-alarm in process application and protection.Our brand "Tianxiang" is recogonized as high accuracy, High quality, reliability and varietal of specifications by the customers.
Since the company was founded in 1984, Tianli′s dedicated in producing high quality products, continually technical innovation.Our typical products could normally meets your requirements, meanwhile, we have ability in designing customized.We purse a Customer-oriented service philosophy.We make it our business to continuously improve our service and product strategies to be responsive to customer requirements.
We sincerely hope to cooperate users and friends worldwide, please feel wecome to call us or send e-mail to us.
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