Proportional pressure regulator for vacuum air pressure adjustment. Working pressure range -1.3~80 kPa (max 11.6 psi), rated voltage DC 24V or 12~15V, input signal 4~20mA current or 0~10V voltage, hose port 1/4”. The electronic proportional vacuum pressure regulator is applied in pneumatic system, using analog control replace multistage control. It is saves costs of pressure reducer valve, solenoid valve, hydraulic valve, etc.
Specification
Model | CHN-NITV209 |
Minimum supply vacuum | Set pressure - 13.3 kPa |
Maximum supply vacuum | -101 kPa |
Set vacuum range | -1.3~80 kPa |
Max. Flow | 1500L/min |
Power supply | Voltage | DC 24V ± 10%, DC 12~15V |
Current consumption | Power supply voltage DC 24V type: 0.12 A or less Power supply voltage DC 12~15V type: 0.18 A or less |
Input signal | Current type *Note 1 | DC 4~20mA, DC 0~20mA |
Voltage type | DC 0~5V, DC 0~10V |
Preset input | 4 points (Negative common) |
Input impedance | Current type | 250 Ω or less *Note 4 |
Voltage type | Approx. 6.5 kΩ |
Digital input | Power supply voltage DC 24V type: Approx. 4.7 kΩ. Power supply voltage DC 12V type: Approx. 2.0 kΩ |
Output signal (monitor output) *Note 2 | Analog output | DC 1~5V (Output impedance: Approx. 1 kΩ) DC 4~20mA (Sink type) (Output impedance: 250 Ω or less) Output accuracy ± 6% F.S. or less |
Switch output | NPN open collector output: Max. 30V, 80mA PNP open collector output: Max. 80mA |
Linearity | ± 1% F.S. or less |
Hysteresis | 0.5% F.S. or less |
Repeatability | ± 0.5% F.S. or less |
Sensitivity | 0.2% F.S. or less |
Temperature characteristics | ± 0.12% F.S./ ℃ or less |
Output pressure display *Note 3 | Accuracy | ± 2% F.S. ± 1 digit or less |
Minimum unit | kPa: 1 |
Ambient and fluid temperature | 0 to 50℃ (No condensation) |
Enclosure | ip65 |
Port size | 1/4 inch |
*Note
- 2-wire type 4 to 20 mA DC is not available. Power supply voltage (DC 24V or DC 12~15V) is required.
- Select either analog output or switch output. Further, when switch output is selected, select either NPN output or PNP output. When measuring NITV analog output from 1 to 5 VDC, if the load impedance is less than 100 kΩ, the analog output monitor accuracy of within ±6% (full span) may not be available. The product with the accuracy of within ±6% is supplied upon your request. Output pressure remains unaffected.
- Adjustment of numerical values such as the zero/span adjustment or preset input type is set based on the minimum units for output pressure display.
- Value for the state with no over current circuit included. If an allowance is provided for an over current circuit, the input impedance varies depending on the input current. This is 350Ω or less for an input current of 20mA DC.
Features
- Proportional pressure regulator adopts electrical proportional method to achieve stepless control of outlet pressure. It can realize remote control and program control.
- Compared with hydraulic proportional valves, proportional pressure regulators are small in size, light in weight, compact in structure, light in weight and low in cost.
- The control of proportional pressure regulator is continuous control, and its characteristic is that the output quantity changes with the change of input quantity (current value or voltage value), and there is a certain proportional relationship between the output and input.
- Proportional pressure regulator has many types, which can be used with various electrical equipment and computers to control various electro-hydraulic systems. High control precision, flexible installation and strong anti-pollution ability.
-1.3~80 kPa Proportional Pressure Regulator Dimensions (Unit: mm)
- Proportional Pressure Regulator with Flat Bracket*

- Proportional Pressure Regulator with L-Shape Bracket*

*Note: The bracket is the option.
Proportional pressure regulator especially for vacuum pressure adjustment. Pressure setting range -1.3~80 kPa (11.6 psi), power supply DC 24V or 12~15V, input signal 4~20mA current or 0~10V voltage, analog/switch output, connection hose diameter 1/4 inch. Vacuum air pressure regulator with electronic digital display, saving cost of various hydraulic valves in pneumatic control system.