Product Features
Full stainless steel body
Measuring low starting flow
No moving parts, accuracy will not change after long term working
With functions of self-diagnosis, flow sensor Alarm, Temperature Sensor Alarm, Over Range Alarm and battery under voltage alarm
With optic electric interface, hand-held infrared meter reading tool can read directly
Built-in wireless nb-iot
Stainless steel 316l is optional, meet the measurement of direct drinking water
Bi-directional measuring forward and reverse flow
According to sanitary standard for drinking water
Technical Parameter
| Max. Working Pressure | 1.6Mpa |
| Temperature Class | T30 |
| Accuracy Class | ISO 4064, Accuracy Class 2 |
| Body Material | Stainless SS304（opt. SS316L) |
| Battery Life | 6 Years(Consumption≤0.3mW) |
| Protection Class | IP68 |
| Environmental Temperature | -40～+70℃，≤100%RH |
| Pressure Loss | ΔP25（Based on different dynamic flow） |
| Climatic And Mechanical Environment | Class O |
| Electromagnetic Class | E2 |
| Communication | Wired M-bus, RS485; Wireless LoRaWAN; NB-IoT; |
| Display | 9 digits LCD display volume, flow rate, power alarm, flow direction, output etc. |
| Connection | Thread |
| Flow Profile Sensitivity Class | U5/D3 |
| Data Storage | Store the latest 24 years’ data including day, month and year, The data can be permanently saved even powered off |
| Frequency | 1-4 times/second |
Digital Display
Measuring Range and Dimensions（R250）
| Nominal Diameter | Permanent Flow Q3 | Transitional Flow
Q2 |
Minimum Flow Q1 | Installation without connection accessories(A) | Installation with connection accessories（B) | L | L1 | H | Length of connection accessories（S) | W |
| DN(mm) | (m3/h) | (m3/h) | (m3/h) | mm | mm | mm | mm | mm | ||
| 15 | 2.5 | 0.016 | 0.010 | G¾B | R½ | 165 | 135 | 82 | 53.8 | 96 |
| 20 | 4.0 | 0.026 | 0.016 | G1B | R¾ | 195 | 157 | 90 | 60 | 100 |
| 25 | 6.3 | 0.040 | 0.025 | G1¼B | R1 | 225 | 165 | 96 | 70 | 100 |
Measuring Range and Dimensions（R400）
| Nominal Diameter | Permanent Flow Q3 | Transitional Flow
Q2 |
Minimum Flow Q1 | Installation without connection accessories(A) | Installation with connection accessories（B) | L | L1 | H | Length of connection accessories（S) | W |
| DN(mm) | (m3/h) | (m3/h) | (m3/h) | mm | mm | mm | mm | mm | ||
| 15 | 2.5 | 0.016 | 0.006 | G¾B | R½ | 165 | 135 | 82 | 53.8 | 96 |
| 20 | 4.0 | 0.026 | 0.010 | G1B | R¾ | 195 | 157 | 90 | 60 | 100 |
| 25 | 6.3 | 0.040 | 0.016 | G1¼B | R1 | 225 | 165 | 96 | 70 | 100 |
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