DR3702 Digital Pressure Gauge
DR3702 Digital Pressure Gauge
The 3702 series digital manometer provides a 4-20mA pressure transmition or RS485 communication, which make the unique digital manometer is suitable for remote monitoring. and the gauge adopts high-performance diffused silicon pressure sensor and high-performance digital processing circuit, so it has the characteristics of high anti-interference, the performance is also stable and reliable.
Applications
- Petroleum, chemical, electric power
- Mechanical engineering
- Process control and automation
- Hydrology and flow pressure measure
- Hydraulic pressure
Features
- Output signal 4~20mA or RS485
- LCD display with backlight
- 4-digit or 5-digit display
- Nonlinear correction
- Reset the master variable
- Active or passive migration
- Five pressure unit switching (bar, psi, kPa, MPa, kg / cm2)
Technical Specs
| Measurement range | -1bar…0bar~0.1bar…1000bar | Sealing ring | Viton |
| Medium Type | used for non corrosive fluid to 316L stainless steel and fluororubber | Diameter | 70mm |
| Pressure type | gauge, absolute or sealed gauge pressure | Housing thickness | 1.5mm |
| Display range | 4-digit or 5-digit | Compensated Temp. | 0 ℃ ~ + 50 ℃ |
| Over pressure | 200%FS or 1100bar（Take the minimum value） | Working temp. | – 20 ℃ ~ + 70 ℃ |
| Total accuracy | ± 0.25% FS / ± 0.5% FS | Storage Temp. | -30℃～+70℃ |
| Stability | ±0.20 %FS(1 year) | Pressure interface | NPT1/2 NPT1/4 G1/2 G1/4 M20 * 1.5 |
| Output | 4mA～20mA (two wires) | Protection level | IP65 |
| Housing | stainless steel 304 | Power supply | 12~28VDC |
| Diaphragm | stainless steel 316L | Cable | 1.5m |
Ordering Guide
| DR3702 | Digital Pressure Gauge | |||
| Range | -1bar…0bar~0.1bar…1000bar | |||
| [0～X]bar | X: the actual measured pressure | |||
| Code | Output signal | |||
| E | 4mA～20mA DC | |||
| R | RS485 | |||
| Code | Notes | |||
| B4 | Plug in 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 | |||
| DR3702- | [0~1]bar | E | B4C5G | The whole spec. |
Outline Construction (Unit: mm)
FAQ
Why do we need pressure gauge with output signal?
Pressure gauges with output signal combine the advantages of reading of digital Manometer and the electrical output signal of a pressure transmitter. It has been designed for all industrial applications to allow both a local pressure reading and a 4-20 mA remote signal transmission.
What are the most common thread type of connection ?
Standard pressure gauges provide NPT, BSP(G) or M connections, and these connections are available in stainless steel, brass and monel (wetted parts).
Our digital manometer and pressure sensor threads available as bellow:
NPT – American Taper Pipe Thread
1/8″ NPT
1/4″ NPT
1/2″ NPT
BSPP (G) – British Standard Pipe Parallel
G 1/8″
G 1/4″
G 3/8″
G 1/2″
M – ISO THREAD (METRIC)
M 20 * 1.5
M 14 * 1.5
What is wetted part?
Wetted part is the component of a sensor on the measurement side, which contact the liquid media. Always make sure that the wetted parts are compatible with the liquid.