At a Glance. Endress+Hauser (E+H) covers the full process instrumentation chain. The right instrument depends on what you measure: for flow — Coriolis (Promass F 100) for mass flow of any liquid, electromagnetic (Promag P 100) for conductive liquids; for level — radar (Micropilot FMR62) for non-contact, capacitive (Liquicap FMI51) for interface/sticky media; for pressure — Cerabar PMC51B; for temperature — iTHERM TM131; for analysis — Liquiline CM44. This guide maps each family to its application and gives a selection flow.
1. Instrument Families Side-by-Side
| Measurand | E+H Family | Principle | Best For | Stock Example |
|---|---|---|---|---|
| Mass flow | Promass F 100 | Coriolis | Any liquid/gas mass flow, density, batching | Promass F 100 |
| Volumetric flow | Promag P 100 | Electromagnetic | Conductive liquids, water, slurry | Promag P 100 |
| Level (non-contact) | Micropilot FMR62 | Radar (80 GHz) | Clean liquids, small tanks, hygienic | Micropilot FMR62 |
| Level (point/interface) | Liquicap FMI51 | Capacitive | Interface, sticky conductive media, overfill | Liquicap FMI51 |
| Pressure | Cerabar PMC51B | Diaphragm / absolute | Process pressure, level via hydrostatic | Cerabar PMC51B |
| Temperature | iTHERM TM131 | RTD / thermocouple | Process temperature, hygienic or industrial | iTHERM TM131 |
| Liquid analysis | Liquiline CM44 | pH / ORP / conductivity / O2 | Water quality, CIP, wastewater | Liquiline CM44 |
| Level (ultrasonic) | Prosonic FDU91 | Ultrasonic | Open channels, water/wastewater, budget | Prosonic FDU91 |
2. Decision Flow — Which E+H Instrument Do You Need?
- What are you measuring? → Flow, level, pressure, temperature or water quality.
- FLOW — do you need mass flow or volume flow?
Mass flow (kg/h, density, batching) → Coriolis Promass F 100. Volume flow of conductive liquid (S/m) → electromagnetic Promag P 100. - LEVEL — non-contact or contact?
Non-contact clean liquid → radar Micropilot FMR62. Interface or sticky conductive → capacitive Liquicap FMI51. Open water budget → ultrasonic Prosonic FDU91. - PRESSURE — absolute, gauge or level?
Process pressure → Cerabar PMC51B. Level via hydrostatic → Cerabar with flush diaphragm. - TEMPERATURE — process or hygienic?
Both covered by iTHERM TM131 (select thermowell + transmitter). - ANALYSIS — pH, conductivity, O2?
Multi-parameter → Liquiline CM44 transmitter + matching sensor.
3. Coriolis vs Electromagnetic — The Flow Question
| Aspect | Coriolis (Promass F 100) | Electromagnetic (Promag P 100) |
|---|---|---|
| Measures | Mass flow + density + temperature | Volume flow only |
| Media | Any liquid/gas (conductive or not) | Conductive liquids only (> 5 µS/cm) |
| Accuracy | ±0.05 % mass | ±0.2 % volume |
| Cost | Higher | Lower |
| Use case | Batching, custody transfer, density control | Water, wastewater, general transfer |
4. Quick FAQ
Q: Can Promag measure non-conductive fluids?
No. Electromagnetic flowmeters need conductivity > 5 µS/cm. For oil/gas/solvent, use Coriolis (Promass).
Q: Micropilot FMR62 — what frequency?
80 GHz, giving a narrow beam that works in small nozzles and tight vessels.
Q: Can Cerabar PMC51B measure level?
Yes — hydrostatic level is a standard Cerabar application, especially for pressurized tanks.
Q: Liquiline CM44 — how many parameters?
Up to 4 channels, mix and match pH, ORP, conductivity, dissolved oxygen and turbidity sensors.
5. Related E+H Products in Stock
- E+H Promass F 100 — Coriolis mass flowmeter.
- E+H Promag P 100 — Electromagnetic flowmeter.
- E+H Cerabar PMC51B — Pressure transmitter.
- E+H Micropilot FMR62 — 80 GHz radar level.
- E+H Liquicap FMI51 — Capacitive level probe.
- E+H iTHERM TM131 — Temperature transmitter.
- E+H Liquiline CM44 — Liquid analyzer.
- E+H Prosonic FDU91 — Ultrasonic level sensor.
Need help selecting the right Endress+Hauser instrument for your process? Request a quote with your medium, range, accuracy target and approvals; our engineers will recommend the exact E+H model and configuration.