The All-Rounder for Water Networks: High-Performance Measurement Anywhere
The Proline Promag W 400 is the versatile workhorse of the global water and wastewater industry. Designed to handle everything from municipal drinking water to industrial effluent, it stands out with its IP68 rating (Type 6P enclosure), allowing for permanent underwater or underground installation (EN ISO 12944 corrosion protection). Whether you need precise billing via custody transfer (MI-001/OIML R49) or a simple, reliable sensor for remote locations, the Promag W 400 delivers constant accuracy without the need for straight inlet runs (0 x DN).
| Feature | Technical Data |
| Measured Variables | Volume flow, Conductivity, Mass flow |
| Nominal Diameter | DN 25 to 3000 (1" to 120") |
| Max. Accuracy | ±0.5% (Standard), ±0.2% (Optional Flat Spec) |
| Protection Degree | IP68 (Type 6P) for underwater/underground use |
| Custody Transfer | MI-001, OIML R49 (Optional Class I with 0 x DN) |
| Smart Features | Built-in Web Server, WLAN, Data Logger |
Built for the Elements: The optional C5-M corrosion protection and IP68 rating mean you can bury the sensor or submerge it without worrying about housing failure.
Revenue Protection: Approved for custody transfer. The integrated data logger ensures all measured values are monitored and stored for billing transparency.
No Straight Pipe Required: The 0 x DN inlet run capability allows installation immediately after elbows or pumps, crucial for retrofitting in existing tight chambers.
Effortless Maintenance: Use the integrated Web Server to perform diagnostics via WLAN. No need for proprietary software or to open the dual-compartment housing in the field.
The Challenge: A regional water utility needed to replace a mechanical billing meter that was inaccurate at low flow rates and located in a flood-prone pit.
The Solution: We installed the Promag W 400 (Remote IP68 version) with OIML R49 certification.
The Result: The utility improved billing accuracy by 8%, and the IP68 sensor continued to operate perfectly even after a major seasonal flood submerged the installation pit for two weeks.
