GF100 Standard Glass Micro-Fused Sensing Elements
GF100 pressure sensing elements feature a single-piece 17-4PH stainless-steel construction with excellent Proof performance. The pressure port contains no welds, silicone oil, or other organic materials, providing reliable sealing. The sensing element is firmly glass-bonded to the pressure fitting, significantly improving high-temperature and vibration resistance and ensuring Long term stability and reliability in harsh industrial environments.
Features
Single-piece stainless steel construction No O-rings, no welds exposed to pressure medium, no silicone oil Wide pressure range Suitable for harsh environments Wide pressure range coverage Strong Proof capability Wide operating temperature range
1. Product Overview
The GF100 glass-fused pressure sensing element features a one-piece 17-4PH stainless steel construction with high proof-pressure capability. The pressure port contains no welds, silicone oil or other organic materials, providing a robust pressure-sensing structure for demanding industrial environments.
The sensing element is bonded to the stainless steel pressure fitting using glass-fusion technology. This construction provides resistance to high temperatures and vibration, supporting long-term stability and reliable operation in harsh conditions.
2. Key Features
- One-piece 17-4PH stainless steel construction.
- No O-rings or welds exposed to the pressure medium.
- Oil-free pressure-sensing structure.
- Glass-fused sensing element for demanding industrial environments.
- Available full-scale pressure ranges from 1 to 300 MPa.
- Proof pressure: 3 times rated pressure.
- Operating temperature: −40 to +125 °C.
- Millivolt bridge output for integration with signal-conditioning electronics.
3. Performance Specifications
Reference conditions: 5 VDC excitation; ambient temperature of 25 °C.
| Parameter | Specification | Unit / Condition |
| Zero offset | −2 to +2 | % span |
| Sensitivity | >10 | mV/V |
| Accuracy (combined nonlinearity, hysteresis and repeatability) | ±0.25 | % span |
| Zero thermal shift | ±0.03 | % FS/°C |
| Span thermal shift | ±0.03 | % FS/°C |
| Long-term stability (1 year) | ±0.25 | % span |
| Insulation resistance | ≥100 | MΩ at 250 VDC |
| Proof pressure | 3 × rated pressure | — |
| Burst pressure | 5 × rated pressure | — |
| Pressure cycling endurance | 10 million cycles | 0 to full-scale pressure |
| Compensated temperature range | −20 to +85 | °C |
| Operating temperature range | −40 to +125 | °C |
| Storage temperature range | −40 to +125 | °C |
| Vibration | ±20 | g |
| Shock | 100 | g, 11 ms |
| Pressure port material | 17-4PH stainless steel | — |
FS = full scale. Span is the difference between the output at full-scale pressure and the output at zero pressure.
4. Pressure Range Selection
| Pressure Range | Equivalent Range |
| 0–1 MPa | 0–10 bar |
| 0–1.6 MPa | 0–16 bar |
| 0–3.5 MPa | 0–35 bar |
| 0–7 MPa | 0–70 bar |
| 0–10 MPa | 0–100 bar |
| 0–20 MPa | 0–200 bar |
| 0–35 MPa | 0–350 bar |
| 0–40 MPa | 0–400 bar |
| 0–70 MPa | 0–700 bar |
| 0–100 MPa | 0–1,000 bar |
| 0–200 MPa | 0–2,000 bar |
| 0–300 MPa | 0–3,000 bar |
5. Electrical Connection and Output
Connection: Direct wire leads
Output: Millivolt bridge signal
Excitation: 5 VDC
| Wire Color | Designation | Function |
| Red | E+ | Excitation positive |
| Blue | S+ | Signal positive |
| Yellow | E− | Excitation negative |
| Green | S− | Signal negative |
6. Dimensions
Mechanical dimensions depend on the pressure connection configuration. Please confirm the applicable dimensional drawing before designing the mating assembly.
7. Product Selection
To select a suitable GF100 configuration, please provide the following application requirements:
- Required pressure range and maximum system pressure.
- Pressure medium and operating temperature.
- Pressure connection and installation dimensions.
- Electrical connection requirements.
- Signal-conditioning and integration requirements.
- Required quantity and any special requirements.
Confirm that the pressure medium is compatible with 17-4PH stainless steel. Contact SensorDyna for configuration confirmation and product matching.
