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Brand: Endress+Hauser (E & H)
Endress+Hauser Promass I 100 Coriolis Mass Flowmeter
Description
Promass I 100 Coriolis flowmeter: single-tube sensor with viscosity capability
The Endress+Hauser Promass I 100 is a Coriolis mass flowmeter built around a straight, single titanium measuring tube and a very compact transmitter. Because the tube is straight and full-bore versions exist, it produces little pressure loss, treats the fluid gently and drains and cleans easily. That combination makes the Promass I 100 a natural fit for viscous, shear-sensitive or hygienic products where a bent two-tube sensor would be awkward. Seven Star LLC supplies the Promass I 100 in Oman and the GCC as an independent supplier in Muscat.
How the Promass I 100 is built and what the model name tells you
The name splits into a family and a transmitter generation. “Promass I” is the single-tube sensor design, nominal diameters DN 8 to 80 (3/8 to 3 in). “100” is the Proline 100 transmitter, the slim version with an integrated web server. The Promass I 100 is supplied only as a compact device, so the transmitter and the sensor form one mechanical unit. Housing options are coated aluminium, hygienic stainless steel, and an ultra-compact hygienic stainless version.
The sensor body and process connections are 1.4301 (304) stainless steel. The measuring tube is titanium grade 9 and the wetted process connection parts are titanium grade 2. The datasheet states that the sensor measures independently of temperature, pressure, viscosity, conductivity and flow profile.
Promass I 100 technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / part number | Endress+Hauser Promass I 100 (Proline Promass I 100, product root 8I1B) |
| Measuring principle | Coriolis, straight single-tube sensor (TMB technology) |
| Nominal diameters | DN 8, 15, 25, 40, 50, 80 (3/8 to 3 in), with full-bore (FB) options at DN 15, 25, 40 and 50 |
| Liquid full-scale range | DN 8: 0 to 2 000 kg/h; DN 15: 0 to 6 500 kg/h; DN 25: 0 to 18 000 kg/h; DN 40: 0 to 45 000 kg/h; DN 50: 0 to 70 000 kg/h; DN 80: 0 to 180 000 kg/h |
| Turndown (operable flow range) | Over 1000:1 |
| Mass and volume flow accuracy (liquids) | ±0.10 % of reading |
| Mass flow accuracy (gases) | ±0.50 % of reading |
| Density accuracy (liquids) | ±0.0005 g/cm³ at reference conditions; ±0.02 g/cm³ standard calibration over the full range; ±0.004 g/cm³ with the special density package |
| Repeatability | ±0.05 % of reading for liquid mass and volume flow; ±0.25 % for gas mass flow |
| Medium temperature | –50 to +150 °C (–58 to +302 °F) |
| Process pressure | Up to PN 100, Class 600 or 63K depending on flange standard and size |
| Wetted materials | Measuring tube titanium grade 9; process connection titanium grade 2 |
| Process connections | EN 1092-1 flanges, ASME B16.5 flanges, JIS B2220 flanges, DIN 11864-2 flanges, Tri-Clamp, eccentric Tri-Clamp, DIN 11851, SMS 1145, ISO 2853 and DIN 11864-1 threads |
| Outputs | 4–20 mA HART with pulse/frequency/switch, PROFIBUS DP, Modbus RS485, EtherNet/IP or PROFINET |
| Supply voltage | DC 20 to 30 V (Modbus RS485 intrinsically safe version is fed through the Safety Barrier Promass 100) |
| Power consumption | 3.5 W maximum (2.45 W for the Modbus RS485 intrinsically safe transmitter) |
| Ambient temperature | –40 to +60 °C (–50 to +60 °C with test certificate option JM) |
| Ingress protection | IP66/67, Type 4X enclosure as standard; IP69 available through the sensor options code |
Operating principle of the Promass I 100
The tube is driven to oscillate at its resonance frequency. When fluid flows through it, Coriolis forces delay the vibration at the inlet and advance it at the outlet, and the resulting phase shift is read by electrodynamic pick-ups. The phase shift grows in proportion to mass flow. The resonance frequency itself shifts with the mass of fluid in the tube, which gives density, and a temperature sensor on the tube provides the compensation signal and a temperature output.
Viscosity is the extra dimension of this model. With the Viscosity application package (order option EG) the transmitter evaluates the damping of the oscillation to report dynamic viscosity, kinematic viscosity and temperature-compensated values, for Newtonian and non-Newtonian liquids. Option packages also include Concentration (ED) and Heartbeat Verification and Monitoring (EB).
Where the Promass I 100 fits and which models sit beside it
Within the Proline Promass range the I 100 is the sensor for small and medium lines where gentle handling and hygiene matter. The bent dual-tube Promass O 300 targets high pressure up to PN 250, the Promass Q 300 targets custody-transfer grade accuracy and cryogenic duty, and the Promass X 300 covers very large lines of DN 300 to 400. The Cubemass C 300 is the choice below DN 8, from DN 1 to 6. The Promass I 100 stays the pick when a very small footprint and a viscosity readout matter.
Selection checklist for a Promass I 100
- Line size and flow range: keep normal flow well inside the full-scale values and decide whether a full-bore variant is needed.
- Fluid: confirm titanium wetted parts are compatible, and state the viscosity range if the viscosity package is wanted.
- Process connection: sanitary clamp, dairy thread or flange according to the line standard; eccentric clamps help drainage in horizontal lines.
- Pressure and temperature: check the pressure-temperature rating of the chosen connection against the duty, up to +150 °C medium temperature.
- Output and protocol: HART with pulse output, PROFIBUS DP, Modbus RS485, EtherNet/IP or PROFINET, and whether an intrinsically safe Modbus version with barrier is required.
- Housing: coated aluminium, hygienic stainless or ultra-compact hygienic, with or without local display.
- Application packages: Heartbeat Verification and Monitoring, Concentration, Viscosity, Special density.
Installation, commissioning and maintenance of the Promass I 100
No inlet or outlet run is needed, even behind valves, elbows and tees, as long as cavitation is avoided. Install the sensor so the arrow on the nameplate matches the flow direction, and follow the orientation guidance in the datasheet: vertical mounting drains and protects the tube from build-up, while horizontal lines may need eccentric clamps and a slight slope for full drainability. Keep the sensor clear of strong pipe vibration, and use the Applicator sizing tool to check the measured error and pressure loss for your fluid.
Zero point stability is listed per size, from 0.150 kg/h at DN 8 to 13.5 kg/h at DN 80. Maintenance is light: use Heartbeat Verification to document sensor and electronics health, read diagnostics in the web server, and keep cable glands and the housing seal in good condition. In Oman and the GCC keep the transmitter out of direct sun where possible, since the standard ambient range ends at +60 °C.
Typical applications of the Promass I 100 in Oman and the GCC
The Promass I 100 suits food, beverage, pharmaceutical and fine-chemical duties, but in the Gulf it also earns its place on process skids and package units: additive and chemical dosing, lube oil and glycol loops, fuel and solvent transfer, water-treatment chemicals and desalination dosing lines. Viscous products such as resins, oils and syrups are measured without the pressure drop of a bent-tube design. High ambient heat, dust and humidity are normal in Omani plants, and the transmitter is rated IP66/67 as standard.
Promass I 100 versus other Promass and Cubemass models
| Model | Sensor design | Nominal diameter | Typical role |
|---|---|---|---|
| Promass I 100 | Straight single tube, titanium | DN 8 to 80 | Viscous, hygienic, low pressure loss |
| Promass O 300 | Bent dual tube, 25Cr duplex | DN 80 to 250 | High pressure to PN 250, offshore |
| Promass Q 300 | Bent dual tube / four-tube, 316L | DN 25 to 250 | Highest accuracy, custody transfer, cryogenic option |
| Promass X 300 | Four tube, 316L | DN 300 to 400 | Very high flow rates |
| Cubemass C 300 | Single tube, 904L | DN 1 to 6 | Smallest quantities, up to 400 bar |
Information to send with a Promass I 100 RFQ
- Full order code or nameplate photo if you are replacing an existing unit
- Fluid name, density and viscosity range, operating temperature and pressure
- Line size, process connection standard and rating, and flow range
- Output and fieldbus required, power supply, housing and display preference
- Hazardous-area classification and any hygienic or marine documentation required
- Quantity, delivery location in Oman or the GCC and required lead time
Documents and quotation
The Endress+Hauser Technical Information (datasheet) for the Promass I 100 is attached on this page and lists the measuring ranges, accuracy figures, pressure-temperature curves and dimensions by size. Please check the exact order code against it before ordering.
Send the order code or the fluid, line size and output you need, and Seven Star LLC will prepare a quotation with delivery details for Oman and the GCC.
Other Models in the Promass Coriolis Range
Seven Star LLC supplies models from the Promass Coriolis 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 Promass I 100 Coriolis Mass Flowmeter | Flowmeters | You are viewing this model |
| Endress+Hauser Promass O 300 Coriolis Mass Flowmeter | Flowmeters | View details |
| Endress+Hauser Promass Q 300 Coriolis Mass Flowmeter | Flowmeters | View details |
| Endress+Hauser Promass X 300 Coriolis Mass Flowmeter | Flowmeters | View details |
| Endress+Hauser Cubemass C 300 Coriolis Mass Flowmeter | Flowmeters | View details |
Datasheets & Documents
- Datasheet Endress+Hauser Promass I 100 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 Promass I 100 Coriolis Mass Flowmeter
Answers from our engineering team on installation, compatibility and integration.
01What does the Promass I 100 measure?
It measures mass flow, density and temperature directly and calculates volume flow, corrected volume flow and reference density. With the optional Viscosity package it also reports dynamic and kinematic viscosity in the line.
02What sizes does the Promass I 100 cover?
Nominal diameters run from DN 8 to DN 80 (3/8 to 3 in), with full-bore options at DN 15, 25, 40 and 50. Full-scale liquid flow goes from 2 000 kg/h at DN 8 to 180 000 kg/h at DN 80.
03What accuracy does the Promass I 100 achieve?
Liquid mass and volume flow are ±0.10 % of reading, gas mass flow is ±0.50 % of reading, and liquid density is ±0.0005 g/cm³ at reference conditions. Repeatability is ±0.05 % of reading for liquids.
04What medium temperature and pressure can it handle?
The medium temperature range is –50 to +150 °C. Pressure ratings reach PN 100, Class 600 or 63K, depending on the flange standard and size selected.
05Does the Promass I 100 need straight pipe runs?
No special inlet or outlet runs are required, even behind valves or elbows, provided cavitation is avoided. Orientation should still be chosen for drainability.
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