E&H PTP31 pressure switch
| Model：PTP31-A1A13H1AC1A+1
Manufacturer: ENDRESS + HAUSER Size: 5*10*10cm Detail Specification: pressure switchComment:Carton Shipping Weight: 1Kg Estimated Lead Time: 12 Weeks Payment：T/T HS CODE：9026201090
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product details
E&H PTP31 pressure switch
ENDRESS+HAUSER Ceraphant PTP31 Pressure Switch: Complete Technical Datasheet for Industrial Monitoring
Smart Pressure Monitoring with the Ceraphant PTP31 Series
The Endress+Hauser Ceraphant PTP31 pressure switch delivers reliable absolute and gauge pressure monitoring in a compact, cost-effective package. Built with a piezoresistive sensor and welded metal diaphragm, this intelligent pressure switch is designed for safe measurement of gases, vapors, liquids, and dust across a wide range of industrial applications.-5-
The PTP31 pressure switch combines integrated switching electronics with optional IO-Link communication, enabling decentralized and economical process monitoring. Its stainless steel 316L construction ensures long-term stability even in harsh environments.-5
Technical Specifications
| Parameter | Specification |
| Measuring Principle | Pressure switch with piezoresistive sensor |
| Measurement Type | Absolute and gauge pressure |
| Measuring Range | 400 mbar to +400 bar (6 to 6,000 psi) |
| Max. Overpressure Limit | 600 bar (9,000 psi) |
| Reference Accuracy | Up to ±0.3% |
| Long-term Stability | 0.2% of URL/year |
| Process Temperature | -40 to +100°C (-40 to +212°F) |
| Ambient Temperature | -20 to +70°C (-4 to +158°F) |
| Supply Voltage | 10 to 30 VDC |
| Housing Material | 316L stainless steel |
| Process Connections | G1/4, G1/2, MNPT1/4, MNPT1/2, DIN13, JIS R1/2 |
| Output Options | 1x PNP switch, 2x PNP switch, 1x PNP + 4-20 mA analog, IO-Link |
| Electrical Connection | M12 connector |
| Enclosure Rating | IP65/IP67, NEMA Type 4X |
| Display | Digital display with LED status indicators |
| Approvals | EN 10204-3.1, Non-hazardous area |
Model Code Breakdown: PTP31-A1A13H1AC1A+1
The complete ordering code for the E&H PTP31 pressure switch follows a structured format where each position defines a specific configuration. Below is the detailed breakdown for PTP31-A1A13H1AC1A+1:
| Position | Code | Meaning |
| 1-5 | PTP31 | Ceraphant T series pressure switch |
| 6 | A | Approval: Non-hazardous area |
| 7 | 1 | Measuring range: Customer-specific/calibrated |
| 8 | A | Sensor range: 400 mbar to 40 bar |
| 9 | 1 | Process connection type: Threaded |
| 10 | 3 | Process connection size: G1/2 |
| 11 | H | Output: 1x PNP switch output |
| 12 | 1 | Electrical connection: M12 plug |
| 13 | A | Housing type: Standard |
| 14 | C | Display: Without display |
| 15 | 1 | Additional options: Basic configuration |
| 16 | A | Design: Standard |
| 17 | +1 | Special version: Standard factory setting |
This configuration delivers a non-hazardous area approved pressure switch with a threaded G1/2 process connection, single PNP switch output, M12 electrical connection, and a calibrated measuring range suitable for a broad spectrum of industrial pressure monitoring applications.
Other common Ceraphant PTP31 pressure switch configurations include:
PTP31B-AA7M1PGBWJJ – Gauge pressure, G1/2 thread, PNP + 4-20 mA output, IO-Link capable
PTP31B-AA4M1PGFVXJRZ – Threaded process connection with analog output
PTP31B-AA8M1MGFVXJR1 – Wide measuring range configuration
PTP31B-CA4E1PGFVWJ – Absolute pressure measurement variant
Key Features and Benefits
Robust Sensor Technology
The PTP31 pressure switch features a welded metal sensor diaphragm that delivers high reproducibility and long-term stability. The piezoresistive sensing element is overload-resistant up to 400 bar, ensuring reliable operation even under extreme pressure spikes.-5
Integrated Switching Electronics
With built-in switching electronics, the Ceraphant PTP31 enables decentralized process monitoring without requiring external control cabinets. The digital display and LED indicators provide on-site function checks and status information, with green indicating OK status and red signaling errors.-42
IO-Link Smart Communication
Select models of the E&H PTP31 pressure switch support IO-Link communication, reducing configuration complexity and enabling easy integration into all fieldbus systems. This digital capability transforms the pressure switch into an IIoT-ready device for Industry 4.0 environments.-5
Compact Design
The compact form factor allows installation in confined spaces where traditional pressure switches cannot fit. The 316L stainless steel housing provides excellent corrosion resistance and durability.
Application Fields
The PTP31 pressure switch is suitable for the following industrial applications:
| Industry | Typical Applications |
| General Process Industries | Pump monitoring, tank level control, filter differential pressure |
| Pneumatic Systems | Compressed air monitoring, vacuum systems |
| Hydraulic Systems | Pressure alarm and shutdown circuits |
| Machine Building | Equipment pressure monitoring, safety interlocks |
| Water and Wastewater | Pump protection, line pressure monitoring |
| Food and Beverage | Sanitary pressure monitoring (hygienic-compatible versions) |
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Selection Guide
When selecting the appropriate PTP31 pressure switch for your application, consider the following factors:
| Selection Factor | Available Options |
| Pressure Type | Absolute or gauge pressure measurement |
| Measuring Range | From 400 mbar up to 400 bar (6 to 6,000 psi) |
| Process Connection | G1/4, G1/2, MNPT1/4, MNPT1/2, DIN13, JIS R1/2 |
| Output Configuration | 1x PNP, 2x PNP, 1x PNP + 4-20 mA analog, IO-Link |
| Electrical Connection | M12 plug (various pin configurations) |
| Display | With or without digital display |
-5
Installation and Commissioning
The E&H PTP31 pressure switch is designed for straightforward installation:
Mount the device using the threaded process connection
Connect the M12 electrical plug (observe pin assignment)
Configure switch points using the three operating keys on the display (if equipped)
The device features a rotatable upper housing section (up to 310°) for optimal readability of measured values in any orientation-6
The operating menu allows configuration of technical units (bar, psi, kPa/MPa, %), zero point adjustment, display damping, and switch point settings.-42
Why Choose the Endress+Hauser Ceraphant PTP31?
The PTP31 pressure switch offers the ideal balance of performance and value for industrial pressure monitoring applications. Unlike general-purpose pressure switches that require external signal conditioning, the PTP31 integrates switching electronics directly into the device. With its wide measuring range from vacuum to 400 bar, multiple output options, and robust stainless steel construction, the Ceraphant PTP31 delivers reliable service across diverse industries.
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