EST383 Thin Film Pressure Transmitters for Construction Machinery
EST383 Thin Film Pressure Transmitters are industrial pressure transmitters for Construction Machinery, featuring heat-resistance, wide range and high stability.
The product is widely used for the measurements of gas and liquid, such as water, oil and light corrosive liquid and gas. Adopting 1Cr18Ni9Ti stainless steel construction and the professional V/I converting circuit, EST383 line is easy for zero/span trim.
Features & Benefits
- Pressure type: Gauge Pressure
- Range: 0~5MPa~80MPa
- Accuracy: ±0.5%F.S
- Stability: 0.2%F.S/Year (typical), 0.4%F.S/Year (maximum)
- Customized working temperature: -40℃~150℃
- Sensing: Sputter Thin Film
- Signal Output: 4~20mA, 0~10/20mA, 0/5~10V | IC2/RS485
- Power Supply: 3.3V/12~30Vdc
- Response Time: ≤3ms (10%-90%)
Applications
- Heavy Machinery
- Atmospheric Measurements
- Aerospace
- Packaging Machinery
- Petrochemicals
- Weather Monitoring
- Automatic Detection system
- Wind pressure Measurement
- High-rise Building Management
EST383 Technical Data & Performance
| Reference Accuracy (°C.) | 0.1 | 0.25 | 0.5 |
| Non-linearity | <=0.1% | <=0.2% | <=0.4% |
| Hysteresis | <=0.05% | <=0.05% | <=0.1% |
| Repeatability | <=0.05% | <=0.05% | <=0.1% |
| Long-term Stability (%FS) | <=0.1% | <=0.2% | <=0.5% |
| Including Linearity Hysteresis+ Repeatability from zero; Square root output accuracy=1.5X of the linear | |||
| Temperature. Drift @ Zero | <=0.01% | <=0.03% | <=0.05% |
| Sensitivity. Drift @ Zero | <=0.01% | <=0.03% | <=0.05% |
EST383 Environment & Working Conditions
| Compensation Temperature | 0℃～+100℃(≤default)，-20℃～120℃（optional） |
| Measuring Temperature | -40℃～+150℃（regular type）/-40℃～+200℃(with heat radiator） |
| Storage Temperature | -40℃～+125℃ |
| Ingress Protection | IP65 (IP67) |
| Atmospheric Pressure | 86kPa～106kPa |
| Vibration | 20g（@10Hz～2000Hz） |
| Shock | 100g/11ms |
| Life-Span/usage | >10 million load cycles (within the measuring range) |
Technology
Piezoresistive based transducers rely on the piezoresistive effect which occurs when the electrical resistance of a material changes in response to applied mechanical strain. In metals, this effect is realized when the change in geometry with applied mechanical strain results in a small increase or decrease in the resistance of the metal. The piezoresistive effect in silicon is due primarily to changes at the atomic level and is approximately two orders of magnitude larger than in metals.
Sputter deposited thin film pressure sensor is a kind of piezoresistive pressure sensors, difference exist that the thin-film sensor consists of a resistor pattern that is vaporized or sputter-deposited onto the force-summing element (the measuring diaphragm). In some transducers the resistors are not directly mounted on the diaphragm but are on a beam linked to the diaphragm by a push rod.
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