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Pressure Transducers
QPress – QHY-AUTOH2 3100 Series
The QHY-AUTOH2 3100 Series is a hydrogen-compatible stainless-steel pressure transducer for automotive and pneumatic systems. Its stainless construction is selected for hydrogen-duty service, and it reads to 700 bar at ±0.5 % FS with a 4–20 mA output. Process threads including M20x1.5, G1/4, NPT 1/4 and 7/16-20 UNF suit vehicle and test-rig fitting, and the rugged body is built for the vibration and exposure of power, energy and automotive applications.
Measurement range
0–700 bar
Accuracy
±0.5 % FS
Output / communications
4–20 mA
Process connection
BSP / NPT / Metric threaded options
Process temperature
−40 to 125 °C
Approvals / Protection
up to IP67
Technical Specifications
| Response time | ≤ 90 ms |
|---|---|
| Max. working pressure | Overload 2× range; Burst 4× range |
| Process / ambient temperature | −40 to 125 °C |
| Power supply | 12–30 VDC; 5 VDC |
| Outputs | 4–20 mA; 0–5 V; 0–10 V; 0.5–4.5 V ratiometric |
| Environmental rating | IP65; IP67 |
| Electrical connection | M12×1; Mini 4‑pin; Round Packard |
| Housing material | Stainless steel body |
| Other ratings / standards | BCI high‑current injection; CE conducted/radiated emissions; Low‑frequency magnetic field immunity |
Key Features
- Stainless construction selected for hydrogen-compatible automotive and pneumatic pressure duty.
- Reads to 700 bar at ±0.5 % FS with a 4–20 mA output for vehicle and rig control.
- Process threads including M20x1.5, G1/4, NPT 1/4 and 7/16-20 UNF for vehicle fitting.
- Fast ≤ 90 ms response for dynamic measurement.
- Operates across −40 to 125 °C.
Typical Applications
- Hydrogen Measurement
- Hydrogen Vehicles
- High-Pressure Pneumatic Control