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Pressure Transducers
QPress – QOM-CR 3400 Series
The QOM-CR 3400 Series is an automotive common-rail pressure transducer for engine and fuel-system measurement. It reads to 2600 bar with a 5 V ratiometric output that matches automotive ECU inputs directly, and ±1 % FS accuracy suits powertrain control and development. Compact M12x1.5 and M18x1.5 threads are built for the vibration and packaging constraints of automotive and general-industrial engines, giving a dependable reading on high-pressure fuel rails.
Measurement range
0–2600 bar
Accuracy
±1 % FS
Output / communications
Voltage output
Process connection
Metric threaded options
Process temperature
−40 to 140 °C
Approvals / Protection
CE / UKCA / RoHS
Technical Specifications
| Pressure type | Gauge |
|---|---|
| Response time | ≤ 10 ms |
| Max. working pressure | Overload 200 % FS; Burst 300 % FS |
| Process / ambient temperature | −40 to 140 °C |
| Power supply | 5 V |
| Outputs | 0.5–4.5 V; 0.3–3 V; 1–4.2 V |
| Electrical connection | 1928403968; 1928404074; AMP 174357-2; SICMA2 |
| Other ratings / standards | 30 g (50–2000 Hz) |
Key Features
- Measures common-rail fuel pressure to 2600 bar for engine and powertrain control.
- 5 V ratiometric output matches automotive ECUs directly, with ±1 % FS accuracy.
- Compact M12x1.5 or M18x1.5 threads built for under-bonnet vibration and duty.
- Fast ≤ 10 ms response for dynamic measurement.
- Operates across −40 to 140 °C.
Typical Applications
- Automotive diesel common-rail systems
- ECU pressure feedback and control