502/7D-C (Small) Pressure Controller
■ Model 502/7D-C Pressure Controller adopts bellows type sensor and can be used for neutral gases such as air, gas, water and liquid media such as lubricating oil and light fuel.
■ The setting value of the controller is adjustable, and the adjustment range is – 0.1 to 4MPa.
■ The controller is made of cast aluminum housing and is waterproof for marine use.
■ The controller is a compact design; the non-adjustable controller is available in a small switching difference type.
- Price Term: FOB/CIF/EXW/DAP
- Package: Exported Wooden case or according to customer request
- Delivery Time: 7 to 10 working days
- Transports: By sea, by air, by high express
- Shipment Port: Shanghai Port
- Origin of Place: Jiangsu
- Warranty: 12 Months
- Main Technical Performance
- Specification
- Caution
- External Dimensions And Mounting Dimensions (Unit: mm)
| Operating Viscosity | <1×10－3m2/s |
| Service Life | 105 times |
| Ambient Temperature | － 25℃ ～55℃ |
| Medium Temperature | － 25℃ ～80℃ |
| Vibration Resistance | 40m/s2 |
| Repeatability Error | ≤1% |
| Contact Capacity | AC 380V 3A (resistive) AC 220V 6A (resistive) |
| Withstanding Voltage | 150% |
Switching Difference Is Not Adjustable
| Serial Number | Set Value
Adjustment Range Mpa |
Switching
Difference Is Not Greater Than Mpa |
Maximum Allowable Pressure
Mpa |
Switching times
Times/Min
|
Sensor Materials | |
| Housing | Bellows | |||||
| 1 | -0.1~0 | 0.007 | 0.5 | 20 | Brass | Steel
0Cr17Ni14 Mo2 (316L) |
| 2 | 0~0.1 | 0.008 | ||||
| 3 | 0.01~0.25 | 0.01 | ||||
| 4 | 0.01~0.3 | 0.01 | ||||
| 5 | 0.02~0.4 | 0.016 | 3.0 | |||
| 6 | 0.03~0.6 | 0.035 | ||||
| 7 | 0.03~0.8 | 0.04 | ||||
| 8 | 0.03~1.0 | 0.04 | ||||
| 9 | 0.03~1.6 | 0.08 | 6.0 | |||
| 10 | 0.05~2.5 | 0.09 | ||||
| 11 | 0.05~3.0 | 0.14 | ||||
| 12 | 0.05~4.0 | 0.2 | ||||
Switching Difference Is Not Adjustable(Small Switching Difference)
| Serial Number | Set Value
Adjustment Range Mpa |
Switching
Difference Is Not Greater Than Mpa |
Maximum Allowable Pressure
Mpa |
Switching times
Times/Min
|
Sensor Materials | |
| Housing | Bellows | |||||
| 1 | -0.1~0 | 0.0045 | 0.5 | 20 | Brass | Steel
0Cr17Ni14 Mo2 (316L) |
| 2 | 0~0.1 | 0.0025 | ||||
| 3 | 0.01~0.25 | 0.01 | ||||
| 4 | 0.01~0.3 | 0.01 | ||||
| 5 | 0.02~0.4 | 0.014 | 3.0 | |||
| 6 | 0.03~0.6 | 0.016 | ||||
| 7 | 0.03~0.8 | 0.02 | ||||
| 8 | 0.03~1.0 | 0.03 | ||||
| 9 | 0.03~1.6 | 0.035 | 6.0 | |||
| 10 | 0.05~2.5 | 0.04 | ||||
| 11 | 0.05~3.0 | 0.05 | ||||
| 12 | 0.05~4.0 | 0.06 | ||||
Setting Value Adjustment
See Example 1 and Example 2 for pressure controller setting value adjustment
- Do not turn the screws inside the controller to tamper with the internal parts when opening it;
- Select the controller so that the predetermined setting value is between 20% and 80% of the controller setting value range;
- The switching difference adjustment range in the specification is the guaranteed switching difference provided, the actual range can be slightly wider;
- The pressure should not exceed the maximum allowable pressure during commissioning;
- The surrounding environment should be free of corrosive gases;
- The installation (or disassembly) must use a wrench to hold the sensor part, to absolutely prevent the sensor and the controller case relative rotation To prevent the sensor from rotating relative to the controller body
