E+H Cerabar PMP71B Pressure Transmitter

Fits continuous gauge or absolute pressure measurement on process loops that need a metal-membrane Cerabar PMP71B with measuring cells from 400 mbar to 700 bar and optional Heartbeat Technology verification.

Key advantages

400 mbar…700 bar cells — Gauge/absolute metal-membrane platform.
Platinum ±0.025% — Standard up to ±0.05%; Platinum up to ±0.025%.
Protocol choice — 4–20 mA HART; PROFINET over Ethernet-APL; PROFIBUS PA; optional Bluetooth SmartBlue.
Heartbeat Technology — Optional in-situ verification with HistoROM.
Diaphragm-seal path — Process temperature to +400 °C class with seal options.

Typical applications

Continuous gauge or absolute pressure on process vessels and lines.
Loops that need Heartbeat verification without removing the transmitter.
Plants standardizing on HART, PROFINET APL, or PROFIBUS PA pressure points.

Selection guide

Measuring range — Measuring cells 400 mbar … 700 bar (6 … 10,500 psi).
Accuracy — Standard up to ±0.05%; Platinum up to ±0.025%.
Long-term stability — 0.05% URL/year; 0.07% URL/5 years; 0.10% URL/10 years.
Output — 4–20 mA HART; PROFINET over Ethernet-APL; PROFIBUS PA; optional Bluetooth SmartBlue.
Supply — Ex d / Ex e / non-Ex: 10.5–35 V DC; Ex i: 10.5–30 V DC.
Process temperature — Standard −40…+125 °C; diaphragm seal −40…+400 °C (−70 °C seal option class).
Ambient — −60…+80 °C (−76…+185 °F).
Process connection — Threads G1/2…G2, MNPT/FNPT/R; flanges DN25…DN100 / NPS 1…4; pancake 2…4 in.
Wetted materials — 316L, Alloy C, tantalum, Monel, PTFE, gold membranes.
Turndown / OPL — Max 100:1; smallest calibratable span 5 mbar; max OPL 1,050 bar.
Housing — Aluminum or 316L.
Approvals — ATEX; IECEx; CSA; NEPSI; INMETRO; UK Ex; SIL; NSF; NACE; Marine.

Common mistakes

Picking cell URL from process max only — use calibrated span and turndown (max 100:1; smallest span 5 mbar).
Leaving protocol blank — 4–20 mA HART vs PROFINET APL vs PROFIBUS PA changes electronics.
Ignoring diaphragm-seal need when process temperature exceeds standard −40…+125 °C.
Assuming Platinum ±0.025% without ordering that accuracy class.
Claiming SIL/Ex coverage without the matching order codes on the quote.

When to RFQ / what to tell us

Gauge vs absolute, calibrated span, and accuracy class (standard vs Platinum).
Media, process temperature, connection, and wetted materials / seal need.
Protocol, housing, Heartbeat/Bluetooth needs, required marks.
Quantity, ship-to country.

Request a Quote · Get selection help

Specs

Spec	Value
SKU	48462
Brand	Endress+Hauser
Model	Cerabar PMP71B
Product type	pressure_transmitter
Measuring range	Measuring cells 400 mbar … 700 bar (6 … 10,500 psi)
Accuracy	Standard up to ±0.05%; Platinum up to ±0.025%
Long-term stability	0.05% URL/year; 0.07% URL/5 years; 0.10% URL/10 years
Output	4–20 mA HART; PROFINET over Ethernet-APL; PROFIBUS PA; optional Bluetooth SmartBlue
Supply	Ex d / Ex e / non-Ex: 10.5–35 V DC; Ex i: 10.5–30 V DC
Process temperature	Standard −40…+125 °C; diaphragm seal −40…+400 °C (−70 °C seal option class)
Ambient temperature	−60…+80 °C (−76…+185 °F)
Process connection	Threads G1/2…G2, MNPT/FNPT/R; flanges DN25…DN100 / NPS 1…4; pancake 2…4 in
Wetted materials	316L, Alloy C, tantalum, Monel, PTFE, gold membranes
Turndown	Max 100:1; smallest calibratable span 5 mbar (0.075 psi)
Overpressure	Max OPL 1,050 bar (15,750 psi)
Housing	Aluminum or 316L
Special features	Heartbeat Technology; SmartBlue Bluetooth; HistoROM; SIL commissioning wizards; LED status
Approvals	ATEX; IECEx; CSA; NEPSI; INMETRO; UK Ex; SIL; NSF; NACE; Marine

Documents

FAQ

Q: What accuracy classes are listed? A: Standard up to ±0.05%; Platinum up to ±0.025% .

Q: Does it support Heartbeat Technology? A: Yes — Heartbeat verification is listed among special features.

Q: What should I send for a quote? A: Cell/span, accuracy class, protocol, Ex, connection, materials, quantity. Compatible with systems using Endress+Hauser Cerabar PMP71B — we do not claim authorized-dealer status.