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Brand: Endress+Hauser (E & H)
Endress+Hauser PMP23 Cerabar Hygienic Pressure Transducer
Description
Endress+Hauser PMP23 Cerabar flush hygienic pressure transducer
The Endress+Hauser PMP23 is the hygienic version of the Cerabar metal-diaphragm transducer. It measures gauge or absolute pressure in gases, vapors, liquids and dust where cleanability matters, using a flush-mounted 316L diaphragm on hygienic process connections. Seven Star LLC supplies the PMP23 in Oman and the GCC as an independent supplier in Muscat, mainly for food, beverage, water, pharmaceutical-grade utility and similar duties.
The model name is fixed, and the variation is carried by option codes. In the datasheet the cell code runs from 1F (400 mbar gauge) to 1S (40 bar gauge) and from 2F (400 mbar absolute) to 2S (40 bar absolute); the connector code selects cable (A, B, C), valve plug (U, V), M12 plug (M) or a metal M12 plug (N) for IP66/69; and the process-connection code selects clamp, dairy-fitting, thread or universal adapter versions.
PMP23 technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / part number | Endress+Hauser Cerabar PMP23 |
| Measuring principle | Gauge and absolute pressure, metallic flush diaphragm |
| Measuring range | –400/+400 mbar up to –1/+40 bar (–6 to +6 psi up to –15 to +600 psi) |
| Reference accuracy | Up to ±0.3 % of calibrated span, turn down up to 5:1 |
| Output / supply | 4–20 mA; 10–30 V DC; IO-Link needs at least 18 V |
| Process temperature | –10 to +100 °C; SIP at +135 °C for 1 hour maximum |
| Ambient temperature | –40 to +85 °C; hazardous-area and IO-Link versions –40 to +70 °C |
| Pressure limits | Over pressure limit up to 160 bar (2,400 psi); MWP depends on cell and connection (nameplate) |
| Wetted materials | 316L (1.4435) diaphragm and process connection |
| Housing | 316L (1.4404) |
| Fill fluid | Synthetic PAO oil, FDA 21 CFR 178.3620, NSF H1 |
| Protection | IP66/68 cable; IP65/67 M12; IP66/69 metal M12; IP65 valve plug; NEMA Type 4X |
| Process connections | ISO 228 thread, Clamp / Tri-Clamp, DIN 11851, M24 × 1.5, universal adapter, SMS, Varivent |
| Options | EHEDG/3-A, hazardous area, min. alarm current, 3.1 certificate, calibration certificate, weld-in adapter, IO-Link |
How the PMP23 works and why flush matters
Pressure pushes the 316L isolating diaphragm, and the fill oil passes the pressure to a silicon measuring element with a Wheatstone bridge. The electronics convert the bridge signal to 4–20 mA or, on the IO-Link version, to the C/Q communication output in SIO mode.
The flush diaphragm sits level with the process wall, so product cannot collect in a dead space. That is the key difference from the PMP21, which has a similar sensor but is offered with conventional thread connections for general industrial use. The fully welded connection and gap-free design are also what let the unit tolerate CIP and SIP cleaning without removal from the line.
Where the PMP23 fits: related parts and adapters
Within the Cerabar line the PMP23 sits between the industrial PMP21 and the PMP43, which offers a display, HART and higher accuracy for hygienic duty. The ceramic PMC21 has no hygienic connections. For threaded versions, the datasheet points to a separate weld-in and process adapter document for 3-A and EHEDG-tested adapters, and several of the listed connections reach EHEDG or 3-A status only in combination with that adapter. Keep the adapter, seal (EPDM or FKM O-ring on the M24 versions) and transducer as one validated set.
Selecting the PMP23: ordering checklist
- Hygienic connection: Tri-Clamp size, DIN 11851 DN 25, 40 or 50, Varivent F or N, SMS, M24 or thread.
- Seal material, for example EPDM or FKM O-ring, matched to the cleaning chemicals.
- EHEDG and 3-A requirement, and whether the weld-in adapter is part of the certified assembly.
- Cell and gauge or absolute principle; remember the over pressure limit of the connection.
- Metal M12 plug for IP69 wash-down, or cable versions where the transducer must be submerged briefly.
- IO-Link if the line is on an IO-Link master; the supply must be at least 18 V.
- Certificates: 3.1 material, calibration and any required material compliance statement.
PMP23 installation, cleaning and maintenance
Install the transducer so that the connection self-drains and the diaphragm is not shadowed by a branch. In vapor service, use a siphon, and for liquids mount at the tapping height. Align connector and cable downward so washing water cannot run into the plug.
- Observe the SIP limit of +135 °C for one hour; do not rely on the specification during that time.
- Never exceed the lower of the cell rating and the connection OPL during cleaning cycles.
- Tighten clamps with the correct gasket and torque so the seal is hygienic and not crushed.
- For repeated extreme temperature steps, allow time for internal compensation before reading small ranges.
During commissioning, record the zero output after installation, because mounting orientation and clamp loading can shift the zero slightly on small ranges. Calibration is typically verified at each product-change shutdown.
Typical PMP23 applications in Oman and the GCC
The PMP23 fits the growing food, dairy, beverage and bottled-water industry in the Gulf, where CIP skids, filling lines, pasteurisers and storage tanks need hygienic pressure points. It is equally useful on potable-water treatment skids, pharmaceutical utilities and process-water loops where cleanability and 316L compatibility are specified. Washdown and warm ambient temperatures in production halls are well within the –40 to +85 °C ambient range; keep versions with IO-Link or approvals within –40 to +70 °C.
PMP23 process connection overview
| Family | Examples listed | Approval notes |
|---|---|---|
| Clamp | ISO 2852 DN 22; Tri-Clamp 1–1½ in and 2 in | 3-A and EHEDG listed on clamp versions |
| Dairy fittings | DIN 11851 DN 25, 40, 50 | 3-A and EHEDG listed |
| Varivent | Type F (DN 25–32), type N (DN 40–162) | 3-A and EHEDG listed |
| Thread | ISO 228 G 1 in with O-ring seal; M24 × 1.5 with EPDM or FKM O-ring | EHEDG/3-A with weld-in adapter |
Information to send with an RFQ for the PMP23
- Process connection type and size, and seal material.
- Gauge or absolute, range and unit.
- EHEDG, 3-A or other hygienic requirement.
- Connector and cable length; IO-Link if required.
- Medium, cleaning temperature and chemicals.
- Certificates and quantity for delivery in Oman or the GCC.
Documents and quotation
The manufacturer technical information for the PMP23 is attached to this page. Check the connection table and approval notes against your hygienic design requirements.
Send the part number, connection and range, and Seven Star LLC will confirm availability and prepare a quotation for delivery in Muscat and across the GCC.
Other Models in the Eh Cerabar Pmp Pmc Range
Seven Star LLC supplies models from the Eh Cerabar Pmp Pmc range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.
| Model | Category | |
|---|---|---|
| Endress+Hauser PMP11 Cerabar Pressure Transducer | Pressure Instrumentation | View details |
| Endress+Hauser PMC11 Cerabar Ceramic Pressure Transducer | Pressure Instrumentation | View details |
| Endress+Hauser PMP21 Cerabar Metal Pressure Transducer | Pressure Instrumentation | View details |
| Endress+Hauser PMC21 Cerabar Ceramic Pressure Transducer | Pressure Instrumentation | View details |
| Endress+Hauser PMP23 Cerabar Hygienic Pressure Transducer | Pressure Instrumentation | You are viewing this model |
Datasheets & Documents
- Datasheet Endress+Hauser PMP23 Datasheet Download
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About brand
Endress+Hauser makes process measurement instruments for flow, level, pressure, temperature and liquid analysis. Georg H. Endress and Ludwig Hauser started the business in Lörrach, Germany, on 1 February 1953, first selling level meters, and the Endress+Hauser name has been used since 1957. The group is headquartered in Reinach, Switzerland, and has been wholly owned by the Endress family since 1975.
Seven Star LLC is an independent supplier listing Endress+Hauser flowmeters, level and pressure transmitters, temperature assemblies and liquid analysis products for buyers in Oman and the GCC. Instruments are matched from the full order code on the nameplate.
Endress+Hauser company profile
| Origin | Founded in Lörrach, Germany, on 1 February 1953 by the Swiss engineer Georg H. Endress and Ludwig Hauser |
|---|---|
| Headquarters | Endress+Hauser AG, Reinach (Basel-Landschaft), Switzerland |
| Ownership | Family owned; the Endress family has been the sole shareholder since 1975, and a family charter commits the company to stay family owned |
| Size | About 16,500 employees and sales of about EUR 3.7 billion (2023, as reported by the company) |
| Product families | Proline flowmeters, Micropilot and Levelflex radar, Liquiphant switches, Cerabar and Deltabar pressure, iTEMP and iTHERM temperature, Liquiline and Memosens liquid analysis |
Milestones
- 1953: Georg H. Endress and Ludwig Hauser start the business in Lörrach on 1 February, first selling level meters.
- 1957: The Endress+Hauser name comes into use.
- 1975: The Endress family becomes sole shareholder.
- 2023: About 16,500 employees and sales of about EUR 3.7 billion, as reported by the company.
Endress+Hauser product lines
| Line | Measuring principle | Typical use |
|---|---|---|
| Promass F 300, Promass 80F, 83F/84F | Coriolis mass flow | Direct mass flow and density of liquids and gases, hydrocarbon transfer and chemical dosing |
| Promag P 300, P 500, H 300, W 400, W 10, 50P | Electromagnetic flow | Water, wastewater, slurries and other conductive liquids |
| Prowirl F 200, 72F | Vortex flow | Steam, gas and low-viscosity liquids |
| Prosonic Flow 92F, t-mass 65F | Ultrasonic and thermal mass flow | Water lines; compressed air and industrial gases |
| Micropilot FMR62, FMR67, FMR60, FMR10B, FMR20, FMR50, FMR52 | Free-space radar level, 80 GHz and 26 GHz | Tanks, process vessels, silos and open water channels |
| Levelflex FMP51, FMP50, FMP54, FMP55 | Guided wave radar level | Level and interface in vessels, separators and bypass chambers |
| Liquiphant FTL51, Prosonic S FMU90 | Vibronic point level; ultrasonic level | High and low level alarms, pump protection, open channel flow |
| Cerabar PMC71B, PMP51B, PMP71, Deltabar PMD78B, PMD75 | Pressure and differential pressure | Process pressure, hydrostatic level and DP flow |
| iTEMP TMT82, TMT162, iTHERM TM101, TR66, TR10 | Temperature transmitters and thermometers | RTD and thermocouple points with thermowells |
| Liquiline CM444, CM442, Memosens CPS11E, Stamolys reagents | Liquid analysis | pH, ORP, conductivity, dissolved oxygen and nutrient analysis in water treatment and process |
Where Endress+Hauser instruments are used
In Oman and the GCC, Endress+Hauser instruments are common in oil and gas production and processing, refineries and petrochemicals, desalination and water networks, wastewater treatment, power plants and food and beverage plants. Coriolis meters measure hydrocarbon and chemical flows, electromagnetic meters cover water and wastewater, radar transmitters handle tank and silo level, and Liquiline analysers monitor water quality. Proline 300 and 500 flowmeters include Heartbeat Technology for in-situ verification, which reduces the need to remove a meter for checks.
Ordering Endress+Hauser instruments: what we need
The order code on the nameplate (for example PMP71-1QA1S11RDADU) defines every option: measuring range, process connection, materials, output, approvals and display. Send it with the serial number; Endress+Hauser can retrieve the original configuration from the serial number. For a new instrument add the medium, operating and design pressure and temperature, range, line size or tank geometry, process connection, wetted materials, output or protocol (4-20 mA HART, PROFIBUS, FOUNDATION Fieldbus, Modbus) and the hazardous-area approval required. Older models such as Promass 80/83 or Micropilot M are replaced by current Proline or 80 GHz Micropilot devices.
Facts checked against Endress+Hauser company history and product information, October 2026.
Browse Endress+Hauser products by category: Flowmeters, Level Transmitter, Pressure Instrumentation, Temperature, Liquid Analysis Sensors, Liquid Analytical Systems.
FAQ
Questions about the Endress+Hauser PMP23 Cerabar Hygienic Pressure
Answers from our engineering team on installation, compatibility and integration.
01What makes the PMP23 a hygienic transducer?
It has a fully welded 316L construction with a flush-mounted metallic diaphragm and hygienic process connections such as Tri-Clamp, DIN 11851, Varivent, SMS and M24 × 1.5, so there are no crevices in the process wetted area.
02What temperatures does the PMP23 allow?
Process temperature is –10 to +100 °C. For SIP cleaning, up to +135 °C is permitted for a maximum of one hour, during which the device runs but is not within its measurement specification.
03Does the PMP23 carry EHEDG and 3-A approval?
EHEDG and 3-A are listed as options on selected connections, and for some threaded versions only together with a suitable weld-in adapter. Confirm the exact connection and option when ordering.
04What protection does the PMP23 offer for wash-down?
The metal M12 plug version is rated IP66/69 and the cable versions IP66/68. IP69 withstands high-pressure, high-temperature wash-down, which is common in food and beverage plants.
05What fill oil is used in the PMP23?
The fill fluid is a synthetic polyalphaolefin oil, FDA 21 CFR 178.3620 and NSF H1. This is the grade the datasheet specifies for the reference conditions.
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