DR3602 Intelligent Pressure Switch
DR3602 Intelligent Pressure Switch
The pressure switch is an intelligent digital pressure control switch, it integrates the functions of measuring, display, output signal and control. high-performance diffused silicon pressure sensor and digital signal processing circuit offers high long-term stability and precision. Big 4digits LED display and 2-relay make it is easy to operate on site. 2-relay and 4-20mA output available for multiple applications.
Applications
- Petroleum, chemical, electric power
- Mechanical engineering
- Process control and automation
- hydrology and flow pressure measure
- Hydraulic pressure
Features
- Easy Installation and operation;
- 4-digit LED digital display;
- Max two control points, setting on site;
- Switch point at any pressure within the range;
- Contact load capacity 220V 3A or 24V 3A;
- Support 4-20mA output;
- Power supply 24 VDC
Technical Specs
| Measurement range | -1bar…0bar~0.1bar…1000bar | Zero thermal drift | ≤±0.03%FS/℃ (≤1bar); ≤±0.02%FS/℃ (>1bar) |
| Pressure type | gauge, absolute or sealed gauge pressure | Span thermal drift | ≤±0.03%FS/℃ (≤1bar); ≤±0.02%FS/℃ (>1bar) |
| Over pressure | 200%FS or 1100bar (min. value is valid) | Compensated Temp. | 0 ℃ ~ + 50 ℃ |
| Accuracy | ± 0.1% FS / ± 0.25% FS / ± 0.5% FS | Working temp. | -30 ℃ ~ + 70 ℃ |
| Stability | ±0.3%FS(1 year) | Storage Temp. | -30℃～+70℃ |
| Output | 2 way relay+4mA~20mA DC(2-wire); | Pressure interface | NPT1/2 NPT1/4 G1/2 G1/4 M20 * 1.5 |
| Load | DC24V 1.2A/AC 220V 3A | Insulation resistance | 500MΩ@500V DC |
| Housing | stainless steel 304 | Protection level | IP44 |
| Diaphragm | stainless steel 316L | Power supply | 24V DC |
| Sealing ring | Viton | Cable | Φ7.5mm Polyethylene Special Cable |
Ordering Guide
| DR3602 | Pressure Controller | ||||
| Range | -1bar…0bar~0.1bar…1000bar | ||||
| [0～X]bar | X: the actual measured pressure | ||||
| Code | Input Power | ||||
| U1 | 24VDC | ||||
| U2 | 220VAC | ||||
| Code | Notes | ||||
| C1 | M20x1.5 male, face type seal | ||||
| C2 | M20×1.5 male, waterline seal | ||||
| C3 | G1/2 male | ||||
| C4 | G1/4 male | ||||
| C5 | G1/4 female | ||||
| C6 | NPT1/2 male | ||||
| C7 | NPT1/4 male | ||||
| G | Gauge | ||||
| A | Absolute | ||||
| S | Sealed gauge | ||||
| DR3602- | [0~1]bar | U1 | C5G | The whole spec. |
Outline Construction (Unit: mm)
Electrical Connection
FAQ
What’s the difference between pressure switch and differential pressure switch?
The pressure switch adopts high-stable performance, high-precision pressure sensor and transmission circuit, and then through the special CPU modular signal processing technology, it realizes the detection, display, alarm and control signal output of the medium pressure signal.
The differential pressure switch is composed of two pressure elements with high sensitivity. If the two elements are changed, it will cause the switching mechanism to act to control device such as motor-driven valves. The switch mechanism provides SPDT non-quick-acting (floating) action, so a common movable contact, either contacts one of the two fixed contacts, or stays between the two (no contact).
What is the principle of pressure switch?
The pressure switch is that when the pressure in the system is higher or lower than the rated safety pressure, the diaphragm in the sensor moves instantaneously, and the switch connector is connected or disconnected by connecting the guide rod. When the pressure drops or rises to the rated recovery value When the diaphragm is reset instantaneously, the switch resets automatically, or simply put, when the measured pressure exceeds the rated value, the free end of the elastic element is displaced, and the switch element is pushed directly or after comparison, and the on-off state of the switch element is changed. To achieve the purpose of controlling the measured pressure.