Endress Hauser Absolute and Gauge Pressure Ceraphant PTC31B PTP31B PTP33B
Product Overview
The Ceraphant PTC31B, PTP31B, and PTP33B are a family of cost-effective pressure switches from Endress+Hauser, designed for safe measurement and monitoring of absolute and gauge pressure in gases, vapors, liquids, and dust. With compact design and integrated switching electronics, they provide decentralized and economic process monitoring and control.
Key Features and Benefits
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Three Sensor Variants for Diverse Applications: The PTC31B features an oil-free ceramic sensor diaphragm for high process availability in vacuum and abrasive media applications. The PTP31B uses a welded metal sensor diaphragm, offering high corrosion and abrasion resistance for measuring in gases, steam, or liquids. The PTP33B, also with a fully welded metal sensor, is specifically designed for hygienic applications with CIP/SIP cleaning capability and 3-A/EHEDG certifications.
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High Long-Term Stability and Reliability: All models provide high reproducibility and long-term stability, with a reference accuracy of up to ±0.3% (Platinum version) and a long-term stability of 0.2% of URL/year.
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On-Site Function Check and Information: Equipped with LEDs and a digital display for easy local function checks and status information.
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IO-Link Connectivity: Available with IO-Link communication, enabling easy configuration and flexible integration into all fieldbus systems, reducing both cost and complexity.
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Designed for International Use: Backed by a broad range of approvals and process connections, making them suitable for global applications.
Technical Specifications (at a Glance)
| Specification | PTC31B | PTP31B | PTP33B |
|---|---|---|---|
| Sensor Technology | Oil-free ceramic (capacitive) | Welded metal (piezoresistive) | Welded metal (piezoresistive) |
| Measuring Range | +100 mbar to +40 bar | +400 mbar to +400 bar | +400 mbar to +40 bar |
| Process Temperature | -25 to +100°C | -40 to +100°C | -10 to +100°C |
| Reference Accuracy | Up to ±0.3% | Up to ±0.3% | Up to ±0.3% |
| Long-Term Stability | 0.2% of URL/year | 0.2% of URL/year | 0.2% of URL/year |
| Process Connections | Threads | Threads | Hygienic connections, threads |
| Communication | 1x PNP, 2x PNP, or 1x PNP + 4…20 mA (IO-Link optional) | 1x PNP, 2x PNP, or 1x PNP + 4…20 mA (IO-Link optional) | 1x PNP, 2x PNP, or 1x PNP + 4…20 mA (IO-Link optional) |
The Ceraphant series provides a versatile, reliable, and cost-effective solution for pressure monitoring across standard to hygienic applications, combining robust sensor technology with flexible integration options.