DR3710A Ultra-high Pressure Digital Pressure Gauge
The DR3710A ultra-high pressure digital pressure gauge is engineered for the world’s most demanding hydraulic applications. Where analog gauges fail, our advanced thin-film pressure sensor technology delivers exceptional accuracy across three critical ranges: 1600bar, 2000bar, and 2500bar.
Thin-Film Pressure Sensor Technology
The DR3710A utilizes a sputtered thin-film alloy pressure-sensitive element combined with advanced manufacturing processes. The pressure media acts directly on the 17-4PH stainless steel diaphragm, where alloy thin-film strain units form a complete Wheatstone bridge. The alloy material is deposited as a thin-film strain resistor onto the elastic element at the molecular level, creating a molecular bond that “melts” the thin-film resistor with the elastic body. This enables stable operation over a long-term working temperature range of -40°C to +150°C.
During production, each sensor undergoes rigorous high and low-temperature cycling and 2,000 fatigue cycles, ensuring unmatched reliability. The DR3710A features:
High accuracy across full pressure range
Wide operating temperature range with minimal thermal drift
High stability and reliability for continuous operation
Excellent vibration, shock, and radiation resistance
The sputtered thin-film pressure-sensitive element is sealed with the stainless steel pressure port using laser welding (or electron beam welding) , creating an integrated encapsulated sensing element. The structural material is 17-4PH stainless steel, guaranteeing long-term stable operation in even the most severe environments.
Built for harsh industrial environments, the DR3710A features a rugged stainless steel housing and a high-definition digital display for clear, immediate readings in any light. It is the perfect choice for hydraulic press monitoring, high-pressure test stands, and waterjet cutting systems.
Worried about connectivity? The DR3710A Ultra-high Pressure Digital Pressure Gauge offers multiple high-pressure process connections, including HP UNF 9/16, G1/2″, 1/2″ NPT and M20×1.5, ensuring a secure, leak-free installation. Stop trusting silent analog needles and start measuring with confidence.
Key Features
| Feature | Description |
|---|---|
| Thin-Film Pressure Sensor | Sputtered alloy thin-film strain gauge technology with molecular bond to elastic body |
| 17-4PH Stainless Steel Diaphragm | Direct pressure media contact, excellent corrosion resistance |
| Wheatstone Bridge Design | Alloy thin-film strain units for precise pressure measurement |
| Wide Temperature Range | -40°C to +150°C operating temperature with minimal drift |
| Laser Welded Construction | Sensor element sealed to pressure port via laser or electron beam welding |
| Rigorous Testing | High/low temperature cycling + 2,000 fatigue cycles per sensor |
| High Accuracy Options | ±0.2% FS, ±0.5% FS, or ±1.0% FS |
| Pressure Ranges | 1600bar, 2000bar, 2500bar |
| Stainless Steel Housing (304) | Rugged construction for harsh industrial environments |
| High-Definition Backlight LCD | Clear readings in any lighting condition |
| Multiple Pressure Connections | HP UNF 9/16, G1/2″, 1/2″ NPT, M20×1.5 |
| Peak Value Holder | Max/Min capture for pressure spike analysis |
| Pressure Progress Bar | Visual pressure indication at a glance |
| 5 Pressure Units | bar, MPa, kg/cm² |
| Zero Clearing Function | Easy field calibration |
| Battery Indicator | Low battery warning |
| Ambient Temperature Display | 3-digit temperature readout |
| IP65 Protection | Dust-tight and water-resistant |
Outline Construction (Unit: mm)
High-Pressure Connection Selection Guide
Choosing the Right Pressure Port for Your DR3710AUltra-high Pressure Digital Pressure Gauge
Selecting the correct high-pressure connection is critical for system safety, leak prevention, and long-term reliability. This guide explains the most common high-pressure thread types used with the DR3710A ultra-high pressure digital pressure gauge.
Available High-Pressure Connections
| Connection Type | Thread Standard | Typical Application | Max Pressure |
|---|---|---|---|
| HP UNF 9/16 Male | UNF (Unified Fine) | Hydraulic systems, industrial presses | Up to 2500bar |
| HP UNF 9/16 Female | UNF (Unified Fine) | Hydraulic systems, quick connections | Up to 2500bar |
| M20 × 1.5 | Metric | European equipment, test stands | Up to 2500bar |
| G1/2 (BSPP) | British Standard Pipe Parallel | General industrial, water systems | Up to 1000bar |
Detailed Connection Guide
1. HP UNF 9/16 Male
Thread code: HP UNF 9/16-MALE
Description:
The HP UNF 9/16 Male connection features external threads following the Unified Fine standard. It is the most common high-pressure port for industrial hydraulic systems.
Best for:
Hydraulic press main cylinder connections
High-pressure pumps and accumulators
Industrial hydraulic power units
Systems requiring frequent connection/disconnection
Compatible with:
HP UNF 9/16 Female ports
Standard UNF 9/16 fittings
Sealing method: Metal-to-metal cone seal or O-ring
2. HP UNF 9/16 Female
Thread code: HP UNF 9/16-FEMALE
Description:
The HP UNF 9/16 Female connection features internal threads. It is typically used on manifolds, valve blocks, or as the receiving port on equipment.
Best for:
Manifold mounting
Valve block integration
Female port on test benches
Direct mounting to existing UNF ports
Compatible with:
HP UNF 9/16 Male fittings
Standard UNF 9/16 male connectors
Sealing method: Cone seal or bonded seal
3. M20 × 1.5
Thread code: M20*1.5
Description:
The M20 × 1.5 is a metric fine thread widely used in European and Asian industrial equipment. It is the standard port for many high-pressure components.
Best for:
European-spec hydraulic systems
Test and measurement equipment
Mobile hydraulics
High-pressure test stands
Compatible with:
M20 × 1.5 male fittings
DIN 3852 / ISO 6149 ports
Sealing method: O-ring or copper washer
4. G1/2 (BSPP)
Thread code: G1/2
Description:
G1/2 (also known as BSPP) is a British Standard Pipe Parallel thread. It is commonly used in water systems, general industrial applications, and lower-pressure hydraulic systems.
Best for:
Water treatment equipment
General industrial processes
Low to medium pressure systems (up to 1000bar)
Replacement of standard pressure gauges
Compatible with:
G1/2 female ports
BSPP fittings
Sealing method: Bonded seal or PTFE tape
Range And Units
DR3710A Order Guide
| DR3710 A | Ultra-High Pressure Digital Pressure Gauge | |||
| Range | ||||
| 1600 | 1600bar | 1600bar | ||
| 2000 | 2000bar | 2000bar | ||
| 2500 | 2500bar | 2500bar | ||
| Accuracy | ||||
| A2 | 0.2%FS | |||
| A5 | 0.5%FS | |||
| A1 | 1.0%FS | |||
| Code | Notes | |||
| C1 | M20x1.5 male | |||
| C2 | G1/2 male | |||
| C3 | HP UNF 9/16 Male | |||
| C4 | HP UNF 9/16 Female | |||
| C5 | Custom connection | |||
| G | Gauge | |||
| DR3710A- | [2000]bar | A2 | C3G | the whole spec. |
FAQ 1: Which connection type should I choose for my hydraulic system?
Question:
*My system currently has an HP UNF 9/16 port. Can I use a gauge with M20 × 1.5 connection?*
Answer:
No, you must match the thread type exactly. Using mismatched threads (e.g., M20 × 1.5 into an HP UNF 9/16 port) will cause leakage, thread damage, or catastrophic connection failure under high pressure.
FAQ 2: What accuracy do I need – 0.2%, 0.5%, or 1.0% FS?
Question:
I am using this gauge on a 2000bar hydraulic press for quality control. Which accuracy option should I select?
Answer:
For hydraulic press quality control, we recommend ±0.5% FS. This provides sufficient precision to detect pressure variations that affect product quality without unnecessary cost.
FAQ 3: Can I use the G1/2 connection for 2500bar applications?
Question:
*I have a G1/2 port on my existing system. Can I order the DR3710A with G1/2 connection for 2500bar operation?*
Answer:
No. The G1/2 (BSPP) connection is rated for maximum 1000bar only. For pressures above 1000bar, you must use HP UNF 9/16 (Male or Female) or M20 × 1.5.