Case Study: Endress+Hauser Ceraphant PTP33B Pressure Switch Replacement for an Industrial Process Application

Project Overview

An industrial customer in Tanzania required a replacement for an existing Endress+Hauser pressure instrument used in a process monitoring application.

The original model had been discontinued, so the key challenge was not simply sourcing another instrument, but identifying a suitable current Endress+Hauser replacement while maintaining the required pressure measurement and switching functionality.

Customer Requirement

The customer required:

  • Replacement of a discontinued Endress+Hauser pressure instrument
  • Compatibility with the existing process application
  • Reliable pressure monitoring and switching
  • Original Endress+Hauser equipment
  • Correct model verification before ordering
  • Fast and reliable international supply

Original Instrument

Original Model: PTP35-A2A17M1BBBA
Brand: Endress+Hauser
Status: Discontinued

Since the original model was no longer available, the configuration was reviewed to determine the appropriate current replacement.

Replacement Solution

The selected replacement was:

Product: Endress+Hauser Ceraphant
Model: PTP33B-66R4/0
Extended Order Code: PTP33B-AA4U1MGBWSJ+QJ
Pressure Range: -1 to 4 bar
Output: PNP
Quantity: 1 pc

The PTP33B provides a modern compact solution for pressure monitoring and switching in industrial process applications.

Why the PTP33B Was Selected

Reliable Pressure Monitoring

The instrument provides dependable pressure detection for continuous process operation and can be integrated into industrial control systems through its switching output.

Compact Industrial Design

Its compact construction makes it suitable for applications where installation space is limited while still providing the robustness required for industrial environments.

Replacement Support

For discontinued instrumentation, simply matching the product family is not sufficient. The pressure range, process connection, electrical output, materials, and other configuration details must be checked carefully before selecting the replacement.

For this project, the original configuration was reviewed before the new PTP33B model was supplied.

Order Execution

Zero Instrument supported the project throughout the complete procurement process:

  • Original model identification
  • Discontinued model verification
  • Replacement model selection
  • Configuration confirmation
  • Endress+Hauser order coordination
  • Product inspection after arrival
  • Shipping mark preparation
  • International logistics arrangement

Before shipment, actual product photos and identification information were checked to confirm that the supplied instrument matched the ordered configuration.

Delivery

After completion, the Endress+Hauser Ceraphant PTP33B was carefully packed and dispatched to the customer’s newly designated consolidation warehouse in China for onward air shipment to Tanzania.

This arrangement allowed the customer to combine the instrument with other cargo and manage the international transportation through their preferred logistics channel.

Project Result

The customer successfully received a current Endress+Hauser replacement solution without having to continue searching for the discontinued PTP35 model.

The project demonstrates the importance of correct model verification when replacing legacy process instrumentation.

Rather than simply supplying a similar pressure device, the replacement process considered the original configuration and selected the appropriate current Endress+Hauser model.

Project Summary

Country: Tanzania
Application: Industrial Pressure Monitoring
Original Model: PTP35-A2A17M1BBBA
Replacement Model: PTP33B-66R4/0
Extended Code: PTP33B-AA4U1MGBWSJ+QJ
Product Family: Endress+Hauser Ceraphant
Pressure Range: -1 to 4 bar
Output: PNP
Quantity: 1 pc
Project Type: Discontinued Instrument Replacement

Conclusion

Replacing discontinued instrumentation requires more than finding a product with a similar appearance or pressure range. Correct identification of the original configuration and careful verification of the replacement are essential to avoid compatibility problems during installation.

Through model verification, sourcing, inspection, and logistics support, Zero Instrument provided the customer with an efficient replacement solution using the current Endress+Hauser Ceraphant PTP33B platform.

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