Technical Data
ComparePressure
| Measuring Principle | Pressure switch |
| Characteristic | Intelligent pressure switch with metal diaphragm for hygienic applications, longterm stable |
| Supply voltage | 10....30 VDC |
| Reference Accuracy | 0.5 %, Platinum: 0.3 % |
| Long term stability | 0.2 % of URL/year |
| Process temperature | -40 °C...+100 °C (-40 °C...+212 °F) |
| Ambient temperature | -20 °C...+70 °C (-4 °F...+158 °F) |
| Measuring cell | +400 mbar....+40 bar (+6 psi....+600 psi) |
| Max. overpressure limit | 160 bar (2320 psi) |
| Process connection | Thread: M24 |
| Process connection hygienic | DIN11851, Tri Clamp, SMS, Varivent |
| Communication | 1x PNP switch 2x PNP switch 1x PNP switch + 4...20 mA analogue |
| Design approvals | EN 10204-3.1 final inspection report, Cleaned from oil and grease, Set min alarm |
| Hygienic approvals | FDA concurring 3A, EHEDG, EG1935/2004 |
| Specialities | Digital display, Fully welded process connections |
The PTP33B is a pressure switch for hygienic applications. For non-hygienic applications, use the metal diaphragm pressure switch PTP31B, and for ceramic diaphragms use PTC31B.
The Ceraphant PTP33B is a highly cost-effective pressure switch with a metal diaphragm sensor for safe absolute and gauge pressure monitoring. The compact pressure switch has high stability and strong overload resistance. The stainless steel PTP33B has 3-A and EHEDG approvals.
Advantages
Integrated electronic switch module for monitoring and control in discrete and process industries
Function check and on-site information display via LED indicator and digital display
Compact pressure transmitter that meets hygienic application requirements
Resistant to CIP/SIP cleaning
Small, flush-mounted hygienic process connection with 3-A and EHEDG approvals
Application areas
Pressure switch for absolute and gauge pressure monitoring of gases, steam, liquids or dust.
Process connection: hygienic connection, threaded connection
Process temperature: -10...+100°C (+14...+212°F) (+135°C (275°F): for 1 hour)
Process pressure: 400 mbar...+40 bar (6...+600 psi)
Measuring accuracy: max. ±0.3%
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Technical documentation
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Source:Endress+Hauserpublic information from the website
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Gauge and Absolute Pressure Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of Gauge and Absolute Pressure.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Gauge and Absolute Pressure for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · Gauge and Absolute Pressure Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of Gauge and Absolute Pressure.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Gauge and Absolute Pressure for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · Gauge and Absolute Pressure Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of Gauge and Absolute Pressure.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Gauge and Absolute Pressure for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · Gauge and Absolute Pressure Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of Gauge and Absolute Pressure.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Gauge and Absolute Pressure for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
