Endress+Hauser PMP71-1QA1W11RDADU Cerabar Pressure Transmitter 0-400 bar

Name: PMP71 Cerabar 0-400 bar (PMP71-1QA1W11RDADU) – Price Oman
Brand: Endress+Hauser (E & H)

Description

Overview

The Endress+Hauser PMP71 Cerabar is a digital process pressure transmitter built around a robust ceramic or metallic measuring cell, and this configuration, order code PMP71-1QA1W11RDADU, is factory-calibrated to a 0-400 bar gauge range. This high-pressure span is specified precisely where the PMD75 or a low-range PMP71 cannot survive the duty, and choosing the correctly rated PMP71 from the outset prevents costly premature sensor failure in the field: hydraulic power units, high-pressure water injection systems, test benches, and high-head pump discharge lines where process pressure regularly reaches hundreds of bar.

With engineering support in Muscat, Seven Star LLC supplies the PMP71 Cerabar to oil and gas facilities, hydraulic equipment manufacturers, and heavy industry across the Sultanate of Oman, Muscat, and the wider GCC region. Specifying the high-pressure PMP71 through Seven Star LLC comes with a formal quotation, the manufacturer datasheet and technical support with selection.

Measurement Principle

The PMP71 uses a process-isolated measuring cell in which the applied pressure deflects a metallic diaphragm, changing the capacitance of an internal reference element. The transmitter’s digital electronics convert this capacitance change into a linearized 4-20mA signal proportional to pressure, with continuous temperature compensation applied to correct for ambient and process temperature drift across the full 0-400 bar calibrated span.

At high pressures, sensor robustness matters as much as accuracy: the PMP71’s metallic measuring cell and heavy-duty process connection are engineered to withstand repeated pressure cycling, with an overpressure limit of 600 bar for the 400 bar cell, a critical property for hydraulic test stands and high-pressure injection pumps that experience frequent start/stop pressure surges. This overload margin protects the instrument from the water-hammer effects common in high-pressure piping systems, and it is one of the primary reasons the Endress+Hauser PMP71 is specified over lower-cost alternatives on critical hydraulic circuits.

Engineering Design of the Endress+Hauser PMP71

The PMP71 in this high-pressure configuration uses a two-chamber transmitter housing in aluminum (T14), that physically separates the terminal compartment from the electronics compartment so that field wiring can be serviced without exposure to the measuring circuitry. The process connection for a 0-400 bar span is typically a high-pressure male thread fitting rated to withstand the full calibrated range plus significant overpressure margin, selected at the point of order to match the application.

A backlit local display with a four-key operating concept allows field engineers to configure the zero and span, apply damping, and read diagnostic information without a separate handheld communicator, while the FOUNDATION Fieldbus output of this order code integrates with fieldbus-based control systems. Cerabar S transmitters with 4-20mA output can be ordered with a SIL declaration to IEC 61508 for safety instrumented functions, an important consideration for high-pressure systems where an undetected leak or overpressure event carries significant safety risk.

Key Features

The Endress+Hauser PMP71 combines high-pressure durability with precise, stable measurement. Core capabilities include:

Factory-calibrated 0-400 bar gauge pressure range suited to hydraulic and high-pressure injection duties.
Metallic process-isolated measuring cell engineered for repeated high-pressure cycling (overpressure limit 600 bar).
Continuous temperature compensation maintaining accuracy across the full 400 bar calibrated span.
Aluminum T14 housing isolating wiring from sensitive electronics.
Local backlit display with four-key configuration for on-site zero, span, and damping adjustment.
Cerabar S 4-20mA versions are available with a SIL declaration per IEC 61508 (not part of this order code).
FOUNDATION Fieldbus output (order code position Q) for integration with fieldbus-based DCS platforms.
High-pressure-rated process connection with substantial overpressure margin beyond the 400 bar span.

Industrial Applications

The 0-400 bar range of this Endress+Hauser PMP71 configuration is the standard specification for hydraulic power unit pressure monitoring, high-pressure water injection systems, and test bench applications across Oman’s oil and gas and heavy manufacturing sectors, where lower-range transmitters would be permanently overloaded within minutes of commissioning. Its metallic sensor cell and heavy-duty connection make it the preferred choice wherever pressure spikes and water-hammer are routine operating conditions, and maintenance teams across the GCC increasingly standardize spares around the Endress+Hauser PMP71 platform to simplify calibration and reduce downtime.

Backed by genuine manufacturer documentation, Seven Star LLC distributes the high-pressure Cerabar PMP71 to EPC contractors and plant operators throughout the Sohar and Salalah economic zones, supporting hydraulic press monitoring, high-pressure pump protection, and enhanced oil recovery injection systems. Facility engineers across the region rely on Seven Star LLC for both the initial specification of the correct calibrated range and the long-term parts and calibration support that follows commissioning of the Endress+Hauser PMP71.

Technical Specifications

Full technical parameters for the Endress+Hauser PMP71 pressure transmitter, order code PMP71-1QA1W11RDADU, are summarized below to help engineers confirm the Endress+Hauser PMP71 matches their process requirements before submitting a purchase order:

Parameter	Specification
Model	Endress+Hauser PMP71 Cerabar
Order Code	PMP71-1QA1W11RDADU
Measuring Principle	Metallic Process Pressure Cell
Calibrated Range	0 to 400 bar gauge (measuring cell 1W)
Output Signal	FOUNDATION Fieldbus (order code position Q), bus powered 9 to 32 V DC
Housing	Aluminium T14 housing, IP66/67, M20x1.5 cable gland (order code position A)
Safety Rating	SIL declaration (option E) applies to 4-20 mA versions and is not part of this order code
Display	Local backlit display, 4-key operation
Process Connection	1/2 in MNPT thread with bore, AISI 316L (order code RD)
Product status (endress.com)	Successor listed: PMP71B
Measuring cell 400 bar (code 1W)	Gauge; LRL -1 bar, URL +400 bar; smallest calibratable span 4 bar; MWP 400 bar; OPL 600 bar
Reference accuracy, 400 bar cell	Standard ±0.1 % up to TD 5:1; Platinum ±0.065 % at TD 1:1
Long-term stability	±0.05 % of URL per year, ±0.07 % per 5 years, ±0.10 % per 10 years
Process temperature	Internal membrane connections: -40 to +125 °C (150 °C for max. one hour)
Ambient temperature	-50 to +85 °C without display; with LCD -20 to +70 °C without restriction
Current consumption	FOUNDATION Fieldbus 15.5 mA ±1 mA
Approval (order code 1)	ATEX II 1/2 G Ex ia IIC T6
Process membrane / fill fluid	AISI 316L membrane; silicone oil
Certificates and accessories (order code D, U)	EN 10204 3.1 material certificate for wetted parts plus NACE MR0175; wall/pipe mounting bracket, AISI 304

PMP71-1QA1W11RDADU Order Code Decoded from the Cerabar S Product Structure

The order code PMP71-1QA1W11RDADU can be read position by position against the ordering structure published in the Cerabar S Technical Information TI00383P. The first character, 1, is the approval: ATEX II 1/2 G Ex ia IIC T6. The second, Q, defines output and operation: FOUNDATION Fieldbus with operation inside the housing and an LCD. The third, A, is the aluminium T14 housing with M20x1.5 cable gland and IP66/67 protection. Readers should note that this code therefore describes a fieldbus transmitter, not a 4-20 mA HART device.

The two characters 1W select the 400 bar gauge pressure measuring cell with an overpressure limit of 600 bar. The following 1 means the device is calibrated to the nominal sensor range in mbar/bar units, and the next 1 specifies an AISI 316L process membrane. RD is the process connection: a 1/2 inch MNPT male thread with bore, in 316L, with CRN registration. A designates silicone oil as the fill fluid behind the membrane.

The last two positions are the additional options. D adds an EN 10204 3.1 material test certificate for the wetted components together with NACE MR0175 material compliance. U adds a wall and pipe mounting bracket in AISI 304. No SIL declaration (option E) and no overvoltage protection (option M) are part of this code.

PMP71 400 bar Measuring Cell Performance and Limits

For the 400 bar cell Endress+Hauser lists a measuring range of -1 to +400 bar, a smallest calibratable span of 4 bar, a maximum working pressure of 400 bar and an overpressure limit of 600 bar. Reference accuracy is not the same as for the lower ranges: the 400 bar and 700 bar cells are specified at ±0.1 % of the calibrated span up to a turn down of 5:1, and ±0.065 % in the Platinum version at 1:1. Long-term stability is ±0.05 % of the upper range limit per year.

The PMP71 uses a welded metallic membrane with an oil-filled silicon sensor. With an internal membrane connection such as the 1/2 MNPT thread, the process temperature may be -40 to +125 °C, with 150 °C tolerated for up to one hour. Ambient limits are -50 to +85 °C without display. Fieldbus versions are powered from the bus at 9 to 32 V DC and draw 15.5 mA on FOUNDATION Fieldbus. The Endress+Hauser web page names the PMP71B as the successor model.

PMP71 Cerabar FAQ

What is the calibrated range of the Endress+Hauser PMP71-1QA1W11RDADU?

This PMP71 is factory-calibrated to 0 to 400 bar, for hydraulic power units, high-pressure water injection systems and test benches.

What output and display does the PMP71 have?

This order code has a FOUNDATION Fieldbus output with a local LCD and operation inside the housing; 4-20 mA HART versions use a different code.

Is the Endress+Hauser PMP71 SIL capable?

Cerabar S transmitters with 4-20 mA output can be ordered with a SIL declaration per IEC 61508 (option E). This order code is a FOUNDATION Fieldbus version without that option.

Where can I buy the PMP71 in Oman?

Seven Star LLC supplies genuine Endress+Hauser PMP71 transmitters across Oman and the GCC. Use the quote request below with your order code.

Request a Quote for Endress+Hauser PMP71-1QA1W11RDADU Cerabar Pressure Transmitter 0-400 bar

To submit a formal Request for Quote (RFQ), confirm current availability and lead time, or obtain the complete technical datasheet for the Endress+Hauser PMP71-1QA1W11RDADU Cerabar high-pressure transmitter, please contact the instrumentation division at Seven Star LLC today. Working closely with plant engineers in the region, our engineers are ready to support specification, sourcing, and commissioning of your high-pressure measurement project.

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About brand

Level, flow and pressure measurement account for most of the Endress+Hauser instruments engineers ask us about, and each device is defined by the order code on its nameplate. Endress+Hauser, founded in 1953 and based in Reinach, Switzerland, builds process instrumentation for liquids, gases and bulk solids. Seven Star LLC is an independent supplier listing Endress+Hauser (E+H) flowmeters, radar and vibronic level instruments, pressure and temperature transmitters and liquid analysis equipment for plants in Oman and the GCC.

Endress+Hauser product families on this page

Level is the largest group: Micropilot free-space radar (FMR10B, FMR62 and the FMR67 for bulk solids, all 80 GHz), Levelflex guided radar (FMP50, and the FMP55 for interface measurement), the Liquiphant FTL51 vibronic point level switch and the Prosonic S FMU90 ultrasonic transmitter. Flow covers Proline Promag electromagnetic flowmeters (Promag P 300, Promag W 400) and the Prowirl F 200 vortex meter. Pressure is represented by the Cerabar PMP51B, temperature by the iTEMP TMT82 HART transmitter. For liquid analysis the listing has the Liquiline CM444 multiparameter transmitter and Memosens sensors such as the CPS11E pH electrode.

Where Endress+Hauser instruments are used

Water and wastewater plants rely on Promag W meters, radar level and Liquiline analysis. Oil and gas, chemical and power plants specify Levelflex and Micropilot on tanks and separators, Prowirl on steam and gas, and Cerabar on process lines. Food and pharmaceutical producers use hygienic versions of the same families, and cement and mining sites use the FMR67 on silos.

Ordering Endress+Hauser instruments: what we need

Send the order code and, for a replacement, the serial number from the nameplate. The extended order code is better still, because it spells out every option. Without a code we need the medium, pressure and temperature, measuring span, process connection, wetted materials, output signal or fieldbus, power supply, display and the hazardous area approval required. For flowmeters add line size and liner, for radar the tank height and nozzle size.

Frequently Asked Questions

What applications require the 0-400 bar PMP71 configuration?

The 0-400 bar PMP71 is specified for hydraulic power units, high-pressure water injection systems, test benches, and high-head pump discharge lines where process pressure routinely reaches hundreds of bar.

How does the PMP71 survive pressure spikes and water-hammer?

The PMP71 uses a metallic process-isolated measuring cell and a high-pressure-rated connection engineered to withstand repeated pressure cycling, with an overpressure limit of 600 bar for the 400 bar cell.

What process connections are available on the high-pressure PMP71?

The high-pressure PMP71 is typically supplied with a high-pressure male thread fitting rated to withstand the full calibrated range plus significant overpressure margin, selected at the point of order.

Can the PMP71 be used in SIL-rated safety systems?

Yes. The PMP71 is designed to IEC 61508 and can be applied in SIL2/SIL3 safety instrumented functions, an important consideration for high-pressure systems where an undetected fault carries significant safety risk.

Is Seven Star LLC an experienced supply partner for Endress+Hauser products?

Yes. Seven Star LLC is an experienced supplier of Endress+Hauser in Oman and the GCC, supplying genuine, factory-calibrated instruments with full local warranty and technical support.

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