In municipal drainage and industrial effluent networks, monitoring fluid volume in gravity-fed, unpressurized transport lines is a notorious engineering hurdle. The KROHNE TIDALFLUX 2300 is a highly innovative partially filled pipe electromagnetic flowmeter engineered specifically to eliminate the maintenance headaches of traditional open-channel systems.
Unlike open channels, Venturi flumes, or V-notch weirs that restrict flow and invite debris buildup, this inline EMF features a completely closed, full-bore measuring tube with zero internal obstructions. Operating via an advanced combination of electromagnetic velocity induction and a patented integrated level measurement matrix, it accurately measures volumetric flow even when the pipeline is only partially filled. This makes it an incredibly accurate, cost-effective alternative for municipal sewage systems, chemical discharge networks, mining lagoons, and dredging brine lines.
For plants operating extensive closed manifold skids where standard full-pipe liquid pressure tracking must be tightly monitored alongside gravity lines, integrating a compact [Rosemount 3051SFC Conditioning Orifice Flow Meter] provides absolute process boundary control.
Submerged level sensors in raw wastewater loops frequently fail due to grease, fat, and ragging accumulation. The TIDALFLUX 2300 bypasses this physical bottleneck entirely:
Electrodes Shielded from Floating Deposits: The capacitive level measurement electronics are smoothly integrated into the sensor wall. Because they never come into contact with floating grease crusts or surface scums, the signal remains perfectly stable without drifting.
Abrasion-Resistant Polyurethane Liner: The internal bore is coated with a premium polyurethane (PUR) liner. This exceptionally smooth surface prevents the build-up of fatty deposits, minimizes internal fluid friction, and easily withstands the scour of sand and gravel present in mining effluent or dredging slurries.
IP68 Remote Configuration for Burial: For networks routed through underground utility paths or terrain prone to seasonal flooding, the sensor can be specified with a remote IP68 / NEMA 6P enclosure rating, making it fully safe for direct subsoil burial installation.
Municipal sewage systems and closed gravity pipelines are notorious breeding grounds for highly flammable and toxic hydrogen sulfide (H2S) gases. The TIDALFLUX 2300 is natively certified with ATEX, IECEx, NEPSI, and cQPSus Zone 1 explosion-proof approvals.
The flowmeter transmitter features a robust digital diagnostic suite that exceeds standard NAMUR NE 107 error reporting. It tracks structural anomalies, liner profile conditions, and core coil parameters in real time. For hazardous pump wells requiring high-pressure safety barriers, matching the gravity system with an explosion-isolated [Rosemount 3051S In-Line Pressure Transmitter] provides robust facility-wide security.
| Parameter | Specification Detail |
| Measurement Principle | Electromagnetic combined with patented capacitive level tracking |
| Product Positioning | Specialized inline flow meters for partially filled pipes and gravity lines |
| Measuring Accuracy | ±1% of Measured Value (MV) (Superior to traditional weir/flume systems) |
| Flow Dynamics Scale | Full bi-directional measurement tracking over a wide dynamic scale |
| Calibration Status | Standard factory wet calibration included (No complex on-site calibration needed) |
| Direct Mass Flow Upgrade: | For pressurized process chemical lines requiring raw mass tracking instead of unpressurized volumetric data, explore the [KROHNE OPTIMASS Coriolis Flowmeters]. |
| Component / Condition | Technical Data |
| Nominal Diameter Range | DN200 to DN1600 (8 inch to 64 inches) |
| Measuring Liner Material | Polyurethane (PUR) (Chemically stable and highly abrasion-resistant) |
| Process Connections | Heavy-duty flanged connections supporting EN 1092-1 and ASME B16.5 |
| Process Temperature Range | -5°C to +60°C (+23°F to +140°F) |
| Level Measurement Type | Integrated, non-contact capacitive level sensors |
| Output Communication Option | Description |
| Digital Smart Outputs | PROFINET, Modbus RTU, HART® (Optimized for remote RTU telemetry telemetry) |
| Analogue Loop Connections | 4–20 mA output loops |
| Discrete Alarm Interfaces | Limit switches, Active Pulse, Frequency, and Status alarms |
Minimum Level Requirements: For the capacitive level matrix to calculate volumetric metrics correctly, ensure the fluid level inside the tube achieves a minimum height of at least 10% of the nominal pipe diameter during standard operational windows.
Safety Loop Upgrades: The TIDALFLUX 2300 is highly optimized for gravity-fed utilities and industrial effluents. If your facility layout features hazardous pressurized chemicals requiring integration into an active Safety Instrumented System (SIS), the safety-certified [KROHNE OPTIFLUX 4400 SIL 2/3 Flowmeter] is required.
Slope and Alignment: Install the flowmeter on a continuous, slight downward slope to ensure that effluent moves smoothly without generating internal hydraulic jumps or backward wave reflections.
Avoiding Empty Tube States: While the meter tracks varying liquid heights perfectly down to 10%, avoid positioning the sensor on a vertical drop where liquid free-falls, as this shears the velocity profile and prevents accurate capacitive cross-section tracking.
Straight Pipe Run Metrics: To preserve uniform velocity distribution across the level sensor plane, maintain a clear run of at least 5D upstream and 2D downstream (where D is the nominal sensor diameter) away from any dramatic T-junctions, drop holes, or entry sluice gates.
Because the full-bore polyurethane sensor is completely free of paddles, wheels, or internal restrictions, the TIDALFLUX 2300 suffers no mechanical wear and reduces regular cleaning cycles to almost zero.
To satisfy regulatory environmental compliance reviews or annual water authority audits, municipal operators do not need to drain the sewer line or halt gravity transit. By connecting the handheld OPTICHECK service tool to the transmitter module, field technicians can run an in-situ health verification. The system tests core coil resistance, capacitive layer performance, and transmitter baseline calibration drift, generating an audit-ready compliance document while the effluent line remains active. For tiny chemical dosing lines feeding your wastewater treatment skids where a larger mag meter is unnecessary, the purely mechanical [KROHNE H250 M40 Rotameter] remains the ideal choice.
Q: How does the TIDALFLUX 2300 measure flow accurately when a pipe is only partially full?
A: The TIDALFLUX 2300 uses a patented, integrated non-contact capacitive level measurement system embedded inside the sensor walls alongside traditional electromagnetic velocity electrodes. By constantly tracking the shifting liquid cross-section and the fluid speed simultaneously, the meter calculates true volumetric flow without needing an open-channel flume.
Q: Why is the capacitive level sensor design superior to standard contact probes in wastewater?
A: Standard level sensors in sewers often fail because grease, fat, and floating debris coat the contact probes. The TIDALFLUX 2300 features capacitive sensors that are completely non-contact and shielded inside the smooth polyurethane wall. They are positioned where floating deposits cannot touch or insulate them, ensuring maintenance-free stability.
Q: What is the minimum liquid level required inside the tube for accurate measurement?
A: For the advanced level sensing matrix to compute accurate volumetric data within its rated plus or minus 1 percent specification, the process fluid must maintain a minimum height of at least 10 percent of the nominal pipe diameter. This ensures a stable capacitive baseline inside the polyurethane (PUR) lined tube.
Q: Is the TIDALFLUX 2300 safe to install in hazardous sewer chambers with toxic gases?
A: Yes. Wastewater gravity networks frequently contain dangerous levels of flammable hydrogen sulfide (H2S) gas. The TIDALFLUX 2300 is fully engineered and certified for use in hazardous areas with global ATEX, IECEx, NEPSI, and cQPSus Zone 1 explosion-proof ratings.
