DR3511 Intelligent Pressure Switch
DR3511 Intelligent Pressure Switch
The DR3511 intelligent pressure switch is an intelligent digital measuring instrument with pressure measurement, display, output and control functions. It has built-in high-performance diffused silicon pressure sensor and full digital circuit board. the advantages of intuitive display, simple operation, safe and reliable running and switch point setting on-site.
Applications
- Mechanical engineering
- Process control and automation
- Hydraulics and pneumatics
- Pumps and compressors
- Water and gas
Features
- 4-digit LED display, real-time display of pressure value
- Fast switch response, 300 times/s;
- Preset switching value and hysteresis switching output;
- The control value can be set arbitrarily in the measurement range;
- Easy to operate and press the key to set the parameters on site;
- Two way switch (NPN / PNP), load capacity 1.2A, 4-20mA output (optional)
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 | ± 0.25% FS / ± 0.5% FS | Working temp. | -30 ℃ ~ + 70 ℃ |
| Stability | ±0.1%FS(1 year) | Storage Temp. | -30℃～+70℃ |
| Output | 2 way NPN or PNP;2 way NPN or PNP+4mA~20mA DC(2-wire); | Pressure interface | NPT1/2 NPT1/4 G1/2 G1/4 M20 * 1.5 |
| Load | DC24V 1.2A | Insulation resistance | 500MΩ@250V DC |
| Housing | stainless steel 304 | Protection level | IP65 |
| Diaphragm | stainless steel 316L | Power supply | 12~30V DC |
| Sealing ring | Viton |
Ordering Guide
| DR3511 | Intelligent Pressure Switch | |||
| Range | -1bar…0bar~0.1bar…1000bar | |||
| [0～X]bar | X: the actual measured pressure | |||
| Code | Output | |||
| E | 4mA～20mA DC | |||
| P | PNP | |||
| N | NPN | |||
| J | Relay | |||
| Code | Option | |||
| B1 | 4-pin Plug connection | |||
| B2 | M12 Plug connection | |||
| 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 | |||
| DR3511- | [0~1]bar | EP | B1C5G | The whole spec. |
Outline Construction (Unit: mm)
Electrical Connection
FAQ
What’s the difference of Pressure Transmitter vs Pressure Switch?
A pressure transmitter and pressure switch have their similarities as both these devices can measure pressure. However, the difference is that a pressure control switch has an additional feature that enables it to ‘switch’ control when the pressure goes high or below a certain limit. This switch function can be anything from sounding an alarm to the shutting off the valves.
What’s the difference between digital pressure control compared with traditional pressure switches?
The digital pressure switch combines electronic pressure sensing and control technology with a pair of switching circuits. This allows the unit to function as a pressure gauge, pressure switch and pump protector.
What is the terms hysteresis with pressure or temperature switches?
Hysteresis is generally understood to be the difference between the switch point and the reset point.