KROHNE OPTIFLUX 2100 C Electromagnetic Flowmeter

Technical Attributes

Measuring principle

Electromagnetic / Faraday's law

Primary application

Standard water and wastewater applications

Medium

Electrically conductive liquids

Flow sensor

OPTIFLUX 2000

Signal converter

IFC 100

Version

Compact (C)

Nominal size family

DN25–DN1200 / 1–48 in

Process connection

Flange

Pressure class family

Up to PN40 / ASME Class 300, configuration dependent

Standard accuracy

±0.3% of measured value; exact conditions/configuration apply

Conductivity

≥5 μS/cm; water ≥20 μS/cm

Outputs

4–20 mA, pulse, frequency, status, HART®

Flow direction

Bidirectional measurement supported

Measuring tube

Full bore

Moving measuring parts

None

Liner family

PP or hard rubber; exact liner depends on configuration

Calibration

Standard wet calibration

Applications and Description

Product Overview

The OPTIFLUX 2100 C is designed for reliable flow measurement of conductive liquids in standard water and wastewater applications.

The compact measuring system combines the OPTIFLUX 2000 electromagnetic flow sensor with the IFC 100 signal converter. Depending on the selected configuration, the instrument can provide current, pulse, frequency, status and HART communication outputs.

The full-bore sensor contains no moving measuring parts in the flow path. This makes the product suitable for many general water and wastewater duties where a robust electromagnetic measuring principle is preferred.

Because liner, electrode, pressure, electrical and approval options can vary by order code, replacement instruments should be confirmed using the complete model code or existing nameplate rather than appearance alone.

Typical Applications

• Water treatment
• Water distribution
• Wastewater collection
• Wastewater treatment
• Industrial process water
• Utility water systems
• Compatible conductive process liquids

Selection note: Media conductivity and material compatibility must be confirmed before final selection.

How Electromagnetic Measurement Works

Electromagnetic flow measurement uses Faraday’s law of electromagnetic induction. When a conductive liquid moves through the magnetic field generated by the sensor, an induced voltage is detected by the electrodes and used to determine flow velocity and volumetric flow.

Because the measuring principle depends on electrical conductivity, electromagnetic flowmeters are intended for conductive liquids rather than gases or non-conductive fluids.

Configuration & Selection Points

Before quotation or model confirmation, check the following information:

• Pipe size / DN
• Measured medium
• Electrical conductivity, if known
• Minimum, normal and maximum flow
• Process pressure
• Process temperature
• Flange / process connection standard
• Liner requirement
• Electrode material requirement
• Output / communication requirement
• Power supply
• Installation environment
• Quantity

For replacement projects, send the complete existing nameplate whenever possible.

Installation Considerations

The measuring tube should remain completely filled during normal operation. Avoid installation conditions that can create persistent empty-pipe or excessive entrained-air conditions.

Confirm pipe and flange compatibility, grounding, installation orientation and available straight-run space before installation.

Exact installation requirements should be checked against the applicable KROHNE documentation for the selected configuration. Do not apply one universal straight-pipe rule to every installation.

Replacing an existing OPTIFLUX flowmeter?

Send AERX:

• complete model / order code;
• nameplate photo;
• sensor and converter photos if available;
• pipe size;
• process medium;
• flow range;
• pressure;
• temperature;
• flange / connection standard;
• required output or communication;
• quantity.

AERX can review the identification and requested configuration before quotation.

Product-Specific FAQ