Overview
MJ-1 is a multi-jet water meter that uses an inductive target (nonmagnetic) to transfer measurement data via the cable or network to the smart metering management system.
Features
· The transmission module and base meter are separately installed, easily exchanged. The power supply battery is independently packaged and is convenient to replace.
· Using the latest data transmission technology, the flexible connectivity options include LoRaWAN, RS485, M-Bus.
· The transmission position is 1L.
· The base meter adopts an independent function pointer, after installing the electronic module, it doesn't affect any readings.
· ER18505+SPC1520 power combination technology; its service lifetime is up to 8 years.
Dimensions
| Nominal Diameter | Length L (mm) | Width W (mm) | Height H (mm) | Thread Diameter D |
| DN15 | 165 | 107 | 144 | G3/4"B |
| DN20 | 190/195 | 107 | 144 | G1"B |
Meter Sizes
| Performance | Parameters | ||||||
| Nominal Diameter |
Q3/Q1 | Minimum Flow Rate Q1 (L/h) |
Transition Flow Rate Q2 (L/h) |
Permanent Flow Rate Q3 (L/h) |
Overload Flow Rate Q4 (L/h) |
Minimum Reading(L) |
Maximum Reading(L) |
| DN15 | R160 | 10 | 16 | 1600 | 2000 | 0.05 | 999999 |
| DN20 | R160 | 16 | 25 | 2500 | 3125 | 0.05 | 999999 |
Technical Data
| Power Supply | 3.6V (non-rechargeable lithium battery) |
| Accuracy Class | 2 |
| Q3/Q1 | R100/R160 |
| Nominal Diameter | DN15/DN20 |
| Operating Pressure | 16 bar |
| Environment Class | B |
| Temperature Class | T30/T50 |
| Flow Profile Sensitivity | U5/D3 |
| Electromagnetic Ambient Condition | E1 |
| Communication Interface | LoRaWAN/RS485/M-Bus |
| Protection Class | IP68 |
