Ceramic Capacitive Pressure Transmitter
EST340 is kind of ceramic capacitive pressure transmitter, by using a high-purity ceramic (99.9% pure ceramic substrate), EST340 is both extremely resilient and chemically resistant, so it can be used in water applications as well as in waste water and chemical or biogas plants.
Despite its mechanic robustness, the ceramic pressure sensor is extremely precise 0.1%/FS, with high measuring sensitivity. This means that even very low filling heights (starting from 20 cm, for example) can be recorded reliably and accurately.
EST340 capacitive ceramic pressure transmitter provides either an analogue or a digital output signal with which different analogue or digital interfaces can be implemented.
Features & Benefits
- Sensing Principle: Ceramic Capacitive
- Pressure Range: -1bar… 0bar～0.1bar … 70bar
- Electrical Connection: DIN43650, Direct Cable
- Accuracy: ±0.1%/FS; ±0.25%/FS ±0.5%/FS;
- Output: 4mA～20mA, 0V～10VDC, I2C, RS485
- Response Time: ≤3ms (10%-90%)
- Medium: Compatible with SS304/316/Ceramic
Applications
- Waste Water Treatment
- Chemical or Biogas Plants
- Seawater Measurement
- Other Aggressive Media
EST340 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% |
EST340 Environment & Working Conditions
| Compensation Temperature | 0℃～+50℃（≤200kPa），-10℃～60℃（＞200kPa） |
| Measuring Temperature | -20℃～+85℃（regular type）/-20℃～+150℃(with heat radiator） |
| Storage Temperature | -40℃～+125℃ |
| Ingress Protection | IP65 (IP67) |
| Atmospheric Pressure | 86kPa～106kPa |
| Vibration | 10g（@10Hz～2000Hz） |
| Shock | 100g/11ms |
| Life-Span/usage | >10 million load cycles (within the measuring range) |
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