Overview
Enviro Test Construct ultrasonic smart water flow meter with bi-directional measurement is an ultrasonic water meter with measurement grades R250/R400, offering an effective solution to reduce non-revenue water. Backed by over 20 years of industry experience, the company specializes in the research and manufacturing of high-quality water meters, committed to delivering accurate and reliable metering solutions to its customers.
Features
- No air measurement capability
- Bi-directional flow measurement
- Built-in display with error and leakage alarm codes
- Supports installation in any position or angle
- Compatible with AMR and AMI systems
- Resistant to external magnetic fields, shocks, and impacts
- IP68 protection for long-term stable operation
- Large-capacity battery for extended operation
Technical Specifications
| Flow Parameter | DN15 – ½” | DN20 – ¾” | DN25 – 1″ |
| Q1 Minimum flow (L/h) | 10 | 6.25 | 25.2 |
| Q2 Transitional flow (L/h) | 16 | 25.6 | 40.32 |
| Q3 Permanent flow (m³/h) | 2.5 | 4 | 6.3 |
| Q4 Overload flow (m³/h) | 3.125 | 5 | 7.875 |
| Q3/Q1 (R) | 250 | 250 | 250 |
| Starting flow (L/h) | 1.5 | 1.5 | 1.5 |
| ΔP (bar) | 0.40 | 0.40 | 0.63 |
| Dynamic range | R250 / R400 (optional) | ||
| Temperature class | T30, T50 | ||
| Straight pipe requirement | U10 / D5 (U5 / D3) | ||
| Accuracy Class (OIML R49) | According to ISO 4064, OIML R49, MID (2014/32/EU), Class 2 | ||
| Maximum Working Pressure | PN10 / PN16 | ||
| Water Temperature | T30 / T50 | ||
| Environmental Protection | IP68, Ambient operating temperature -25°C to +55°C | ||
| Power Source | 3.6V Lithium Battery (10 years) | ||
| Environment Class | M1, E1, B/O | ||
| Communication Options | LoRaWAN / WM-bus / 4G / RS-485 / NB-IoT / Pulse / Infrared | ||
