Basic Info.
Component
Mechanical Structure Type
For
Strain Gauge Pressure Transmitter
Output Signal Type
Digital Type
Production Process
Normal Wirewound
Customized
Non-Customized
Repeatability Error
Le 1.5%
Medium Temperature
0~120 Degree
Explosion-Proof Type
Intrinsically Safe
Specification
-0.1~2.5MPa
Product Description
Product Name: 502/7D Explosion-proof Pressure Switch
The Sensor of Switches utilize Diaphragm style, the housing material for partial specification is stainless, it can be suitable for neutral gas and water, hydraulic pressure oil, lubricating oil, light fuel ect. Fluid medium. The Set Point is adjustable, and its adjustable range is from --0.1Mpa to 2.5Mpa.
Characteristic: Can be used for vacuum. Special requirements on Pressure Range from -0.1 to 6.3Mpa can be design customized.
The Adjustment for Dead Band Non-Adjustable Switches
Example 1, Choose 502/7D, Order No. 0811600 Switch, a contact signal is required to be generated when pressure rise to 0.5Mpa( the Increasing Set Point)
1) Loose the locknut, screw the Hi-Pressure Port into the threaded connection of Checkout Test Set. Use the spanner to clip the flat port of the sensor to avoid countermovement of the housing and the sensor. Leave Lo-Pressure Port free.
2) Open the front cover of the switch, let the cable pass through electrical connection and link to the terminal, link another end to the multimeter.
3) Add the pressure to 0.5Mpa, this value can be read from the standard pressure gauge.
4) Clockwise rotate the Set Point Adjusting bolt, to make the Set Point change from big to small, until it switchs at 0.5Mpa.
5) Screw the locknut, adjust the pressure of the testing desk, to make the pressure change up and down around 0.5Mpa, to test if it switches at 0.5Mpa when pressure is rising. Its correspondent Decreasing Set Point just to be 0.5Mpa minus Dead Band 0.03
Example 2. Choose 502/7D, Order No. 0811700 Switch, a contact signal is required to be generated when pressure fall to 0.8Mpa (The Decreasing Set Point)
1. ) Loose the locknut, screw the Hi-Pressure Port into the threaded connection of Checkout Test Set. Use the spanner to clip the flat port of the sensor to avoid countermovement of the housing and the sensor. Leave Lo-Pressure Port free.
2. ) Open the front cover of the switch, let the cable pass through electrical connection and link to the terminal, link another end to the multimeter.
3. ) Add the pressure to 0.8Mpa, this value can be read from the standard pressure gauge.
4. ) Contrarotate the Set Point Adjusting bolt, to make the Set Point change from small to bigl, until it switchs at 0.8Mpa.
5. ) Screw the locknut, adjust the pressure of the testing desk, to make the pressure change up and down around 0.8Mpa, to test if it switches at 0.8Mpa when pressure is falling. This value is just the Decreasing Set Point, Its correspondent Increasing Set Point to be 0.8Mpa plus the Dead Band 0.075Mpa, just 0.875Mpa
TheAdjustment for Dead Band Adjustable Switches.
Example 3, Choose 502/7D, Order No. 0801600 Switch, a contact signal is required to be generated when pressure rise to 0.5Mpa( the Increasing Set Point)
1) Loose the locknut, screw the Hi-Pressure Port into the threaded connection of Checkout Test Set. Use the spanner to clip the flat port of the sensor to avoid countermovement of the housing and the sensor. Leave Lo-Pressure Port free.
2) Open the front cover of the switch, let the cable pass through electrical connection and link to the terminal, link another end to the multimeter.
3) Add the pressure to 0.4Mpa, this value can be read from the standard pressure gauge.
4) Contrarotate the Set Point Adjusting bolt until it switches at 0.4Mpa, this is to fix the Decreasing Set Point.
5) Contrarotate the Set Point Adjusting Bolt again, to ensure the Dead Band value become larger until it switches at 0.6Mpa when pressure is rising.
6) Tighten the locknut, adjust the pressure of the testing desk, to make the pressure traversing between 0.4Mpa to 0.6Mpa, the test if it switches at 0.6Mpa when pressure is rising. This value is just the Increasing Set Point. And to test if it switches at 0.4Mpa when pressure is falling. This is the Decreasing Set Point.
| General Type | Explosion-proof Type |
Working viscosity | < 1×10 -3 M2 /s | < 1×10 -3 M2 /s |
Switching Elements: | Micro switch | Sealed switch |
Explosion Class | -- | Exed II CT4 ~ T6 |
Protection Class of Enclosure | IP65 (accord with DIN40050) | IP54 (accord with DIN40050) |
Ambient temperature | - 40 º C ~ 50 º C | - 40 º C ~ 50 º C |
Medium Temperature | 0 ~ 120 º C | 0 ~ 120 º C |
Mounting Position | -- | Pressure Connection vertically downwards |
Anti-vibration | 502/7D: 4 0 m /s² 502/7DK : 20 m /s² | Max: 20 m /s² |
Repeatability Error | ≤1% | ≤1% |
Electrical Rating | AC 220V 6A (Resistance) | DC 250V 0.25A (Resistance) 60 Wmax AC 250V 5A (Resistance) 1250 VAmax |
Set Point Adjustable Range MPa
| Dead Band No Greater Than | Max. Allowable Pressure *MPa | Switching Frequence Time/Min | Material of Sensor | Connection (F) | Weight kg | Outline Figure No. | Order content No. |
Lower Limit of the Set Point Range MPa | Upper Limit of the Set Point Range MPa | Shell | Bellows | General Type | Explosion-proof Type | General Type | Explosion-proof Type |
-0.1^0 -0.1^0.1 -0.1^0.16 -0.1^0.25 | 0.006 0.007 0.008 0.009 | 0.007 0.008 0.009 0.012 | 1 1 1
| 20
| Brass | Stainless Steel 00Cr17 Ni14 Mo2 ( 316L ) | G1/ 4"
| 1.0 1.0 1.0 1.0 | 01 | 04 | 0810100 0810200 0810300 0810400 | 0850180 0850280 0850380 0850480 |
0^0.1 0^0.16 0.01^0.25. | 0.007 0.008 0.009 | 0.008 0.009 0.01 | 1 1 1 | 1.0 1.0 1.0 | 01 | 04 | 0811100 0811200 0811300 | 0851180 0851280 0851380 |
0.02^0.4 0.03^0.6 0.03^1 | 0.03 0.03 0.03 | 0.03 0.035 0.04 | 2 2 2 | 0.85 0.85 0.85 | 02 | 05 | 0811400 0811500 0811600 | 0851480 0851580 0851680 |
0.05^1.6 0.05^2.5 | 0.07 0.07 | 0.08 0.09 | 5 5 | 0.9 0.9 | 03 | 06 | 0811700 0811800 | 0851780 0851880 |
Set Point Adjustable Range MPa
| Dead Band No Greater Than | Max. Allowable Presure*MPa | Switching Frequence Time/Min | Material of Sensor | Connection (F) | Weight kg | Outline Figure No. | Order content No. |
Low Limit of the Set Point Range MPa | UpperLimit of the Set Point Range MPa | Housing | Bellows | Typical | Explosion-proof Type | Typical | Explosion-proof Type |
-0.1^0 -0.1^0.1 -0.1^0.16 -0.1^0.25 | 0.018^0.08 0.019^0.1 0.02^0.2 0.022^0.25 | 0.019^0.08 0.021^0.1 0.022^0.2 0.024^0.25 | 1 1 1 1 | 20 | Brass | Stainless Steel 00Cr17 Ni14 Mo2 ( 316L ) | G1/ 4"
| 1.05 1.05 1.05 1.05 | 01 | 04 | 0800100 0800200 0800300 0800400 | 0840180 0840280 0840380 0840480 |
0^0.1 0^0.16 0.01^0.25. | 0.015^0.08 0.018^0.1 0.02^0.2 | 0.016^0.08 0.02^0.1 0.024^0.2 | 1 1 1 | 1.05 1.05 1.05 | 01 | 04 | 0801100 0801200 0801300 | 0841180 0841280 0841380 |
0.02^0.4 0.03^0.6 0.03^1 | 0.08^0.25 0.08^0.5 0.09^0.8 | 0.08^0.25 0.09^0.5 0.1^0.8 | 2 2 2 | 0.9 0.9 0.9 | 02 | 05 | 0801400 0801500 0801600 | 0841480 0841580 0841680 |
0.05^1.6 0.05^2.5 | 0.17^1.2 0.18^2 | 0.19^1.2 0.2^2 | 5 5 | 0.95 0.95 | 03 | 06 | 0801700 0801800 | 0841780 0841880 |
Set Point Adjustable Range MPa
| Dead Band No Greater Than | Max. Allowable Presure* MPa | Switching Frequence Time/Min | Material of Sensor | Connection (F) | Weight kg | Outline Figure No. | Order content No.
|
Low Limit of the Set Point Range MPa | UpperLimit of the Set Point Range MPa | Shell | Bellows |
-0.1^0 -0.1^0.1 -0.1^0.16 -0.1^0.25 | 0.003 0.003 0.003 0.0045 | 0.0045 0.005 0.0065 0.01 | 1 1 1 1 | 20 | Brass | Stainless Steel 00Cr17 Ni14 Mo2 ( 316L ) | G1/ 4" G1/ 4" G1/ 4" G1/ 4" | 1.0 1.0 1.0 1.0 | 01 | 0810107 0810207 0810307 0810407 |
0^0.1 0^0.16 0.01^0.25. | 0.003 0.003 0.0045 | 0.0045 0.006 0.007 | 1 1 1 | G1/ 4" G1/ 4" G1/ 4" | 1.0 1.0 1.0 | 01 | 0811107 0811207 0811307 |
0.02^0.4 0.03^0.6 0.03^1 | 0.012 0.015 0.018 | 0.016 0.02 0.03 | 2 2 2 | G1/ 4" G1/ 4" G1/ 4" | 0.85 0.85 0.85 | 02 | 0811407 0811507 0811607 |
0.05^1.6 0.05^2.5 | 0.03 0.03 | 0.05 0.06 | 5 5 | G1/ 4" G1/ 4" | 0.9 0.9 | 03 | 0811707 0811807 |
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.