Basic Info.
Number of Switch
Single Control Switch
Structure
Amplifier Built-in Type
Explosion-proof Type
Non Explosion-proof
Contact Type
Type a Contact
Detection Method
Correlation Type
Switching Elements
Microswitches
Protection Class of Enclosure
IP44
Ambient Temperature
-25ºC~55ºC
Anti-Vibration
2~25Hz,1.6mm
Repeatablity Error
Please Refer to The Sheet
Electrical Rating
AC 380V ,3A(Resistance)/ DC 220V ,2.5A(Resistance)
Transport Package
Inner Package, Carton
Product Description
YWK-50-C Pressure Switches for VesselThe sensor of YWK-50-C Pressure Switches is Bellowes. The Switches can be suitable for gas, steam such
gasous medium and fluid medium. The Set Point is adjustable, the adjustable range is from -0.1 Mpa to 4Mpa.
It utilize waterproof Cast-Aluminum enclosure, so it can meed the requriement for vessel.
Dead Band Adjustable |
Series No. | Set Point Adjustable Range Mpa | Dead Band Adjustable Range Mpa | Set Point Error Mpa | Repeatablity Error Mpa | Remarks |
1 | -0.1…0 | 0.0035…0.026 | ±0.004 | 0.002 | same subjects as series No. from 6 to 11 |
2 | 0…0.1 | 0.006…0.028 | ±0.004 | 0.002 | Medium to be controlled will not exert corrosion to Brass, Tin-Bronze,Lead,Tin welding material. |
3 | 0…0.2 | 0.01…0.08 | ±0.008 | 0.004 |
4 | 0…0.3 | 0.025…0.01 | ±0.012 | 0.006 |
5 | 0…0.5 | 0.03…0.1 | ±0.02 | 0.001 |
6 | 0…0.8 | 0.07…0.25 | ±0.032 | 0.016 | Medium to be controlled will not exert corrosion to Brass,1Cr18Ni9Ti SS,Tin-Lead welding materials |
7 | 0…1 | 0.07…0.25 | ±0.04 | 0.02 |
8 | 0…1.5 | 0.1…0.28 | ±0.06 | 0.03 |
9 | 0…2 | 0.12…0.3 | ±0.08 | 0.04 |
10 | 0…3 | 0.15…0.5 | ±0.12 | 0.06 |
11 | 0…4 | 0.25…0.6 | ±0.16 | 0.08 |
The Adjustment of Set Point
The steps of how to adjust the Set Point, please refer to belows
[Example] Choose Switch of 0~0.8mPa, it is required that the Out-put pressure of the gas compressor to
preserve between 0.5~0.6Mpa.
Put-in the junction box of the Switch into the compressor control circuit (terminal 1.3 actuate when pressure
falls, and will deactuate when pressure rises). Release the gas which is to be controlled to the bellows chamber.
Rotate the Set Point Adjusting Bolt, to make the pointer stay at the 0.5Mpa of the calibration. This is the
Decreasing Set Point.
Electrify the compressor, to make the pressure rising. Repeat to change the Set Point Adjusting Bolt, to test and
ensure it switches when pressure rise.
Installation
Open the cover, put the Switch onto the gauge dash board, Any hand or tool touch with the is forbidden, to
avoid the change of the performance.
Screw-off the Lock-nut and rotate the Set Point Adjusting Bolt, to make the pointer stay at the calibration which
is to be set, fasten the Lock-nut.
Rotate the Dead Band Adjusting Bolt, to the value of needs.
Screw-off the connector, weld the Pilot Pressure Pipe with OD 6mm on the sleeve, fasten the connector to seal
the connecting pipe, medium to be controlled goes into Bellows chamber through Pilot Pressure Pipe. Just refer
to below sketch map.
Countercheck if the installation is steady, re-cover the enclosure, electrify the power. Regular calibrating the
Switches according to its application situation.
Cautions
What the pointer indicates is the Decreasing Set Point, the Set Point Adjustable Range just the Adjustable
Range of the Decreasing Set Point.
The figures on the Dead Band Adjusting Bolt NOT REPRESENTS the actual value of the Dead Band but the
magnitude grade. The actual value should be read from the standard gauge.
When the medium which is to be controlled does not exceed a certain given pressure, the pointer should be at
the position which is smaller than the given figuer, once it is fixed, DO NOT rotate the Dead Band Adjusting Bolt.
The Dead Band Adjustable Range in the table are the minimum adjustable range which can be guaranteed, the
practical range can be wider. º C
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.