New Endress Hauser PMC71B Pressure Measurement Sensor Absolute Gauge Pressure Transmitter With 4-20ma Hart Output
What Is the Cerabar PMC71B?
- The Cerabar PMC71B is a smart digital pressure transmitter from Endress+Hauser.
- It uses a dry, oil-free ceramic measuring cell to measure pressure.
- It’s part of the “Cerabar” family — designed for robust and reliable pressure measurement, especially in challenging process environments.
Key Specifications
Here are some of its main technical characteristics:
|
Parameter |
Value / Details |
|
Pressure Range |
100 mbar … 40 bar (≈ 1.5 psi … 600 psi) |
|
Accuracy |
Standard: up to ± 0.05% |
|
Process Temperature |
–40 °C … +150 °C (–40 °F … +302 °F) |
|
Wetted (Process) Materials |
Ceraphire ceramic; seal materials: FKM, EPDM, HNBR, Perlast, Kalrez, Chemraz |
|
Membrane / Sensing Element |
Ceramic membrane |
|
Power / Communication |
Supports 4-20 mA output; also supports digital communication (HART, etc.) through configuration |
Special Features & Advantages
- Vacuum Resistance: The PMC71B is fully vacuum resistant up to +150 °C, making it suitable for vacuum applications.
- High Purity & Durability: The ceramic measuring cell is very resistant to corrosive or abrasive media, offering long-term stability.
- Membrane Breakage Detection: It has built-in diagnostics to detect if the ceramic diaphragm is damaged, improving safety.
- Heartbeat Technology: This enables continuous self-diagnostics and monitoring, so you can detect anomalies like loop characteristic changes while the device is running.
- Remote Configuration: The device can be configured and controlled wirelessly via a secure Bluetooth connection using the SmartBlue app.
- User-Friendly Software: Setup, proof tests, and verification are streamlined via intuitive wizards — simplifies commissioning and maintenance.
- SIL Capability: It supports safety integrity levels (SIL) and guided proof testing, helping reduce systematic failures.
Typical Applications
- Vacuum Systems: Because of its vacuum resistance and ceramic cell, it's ideal for vacuum pressure measurement.
- Aggressive Media: Suitable for corrosive or abrasive fluids/gases due to the ceramic membrane.
- Process Monitoring: In critical processes where you need to continuously monitor the health of the transmitter (via Heartbeat Technology).
- Hygienic / High-Purity: Where contamination or leakage of process fluid must be avoided.
Limitations & Considerations
- Ceramic sensors can be more expensive than metallic ones, so cost may be higher, especially for simple, non-aggressive applications.
- While robust, it needs to be correctly configured (range, output, diagnostics) to get full value from features like self-verification.
- Bluetooth setup is very convenient, but in some highly restricted or classified zones, remote wireless configuration may not be desirable — check your process safety policy.
|
Parameter |
Specification |
|
Pressure Range |
100 mbar … 40 bar |
|
Accuracy |
Standard: ± 0.05% Platinum: ± 0.025% |
|
Process Temperature |
–40 °C … +150 °C |
|
Ambient Temperature |
–40 °C … +85 °C (depends on display variant) |
|
Overpressure Limit |
up to 60 bar (depending on version) |
|
Measuring Cell / Sensor |
Dry, oil-free ceramic (Ceraphire) |
|
Wetted Materials |
Ceraphire; Seals: FKM, EPDM, HNBR, Perlast, Kalrez, Chemraz |
|
Process Connection |
Thread: G1/2 … G2, R1/2, NPT, etc.; Flange: DN25 … DN80 |
|
Output / Communication |
4–20 mA + HART; optional Bluetooth (SmartBlue); PROFINET APL |
|
Power Supply |
10.5 … 35 V DC (non-Ex) |
|
Diagnostics / Safety Features |
Heartbeat Technology for self-diagnostics, membrane breakage detection |
|
Certifications / Approvals |
ATEX, IECEx, CSA, SIL, EN 10204-3.1 |
|
Long-Term Stability |
0.05% of URL / year |
|
Response Time |
HART cyclic: ~160 ms; acyclic: ~330 ms (typical) |
|
Vacuum Capability |
Fully vacuum resistant (0 mbar abs) |
Get in Touch
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