Overview
SJ-1 is a single-jet dry type with non-magnetic transmission water meter. Through mechanical and electrical conversion of the non-magnetic counting function, it transfers data via network. Its core advantage is compact design. With its ultra-low overall height, the meter easily adapts to various installation conditions.
Features
· Dry-type structure
· Supports forward and reverse metering
· Metrological class up to R160
· Low power consumption
· Precise sampling up to 0.008m³
· Supports OTA remote upgrade
· Optional communication ports
· Supports Multi-Alarm Alert
· Battery life up to 10 years
· Brass body
Dimensions


| Nominal Diameter | Length L (mm) | Width W (mm) | Height H (mm) |
| DN15 | 110 | 87 | 90 |
| DN20 | 130 | 87 | 90 |
Technical Data
| DN | mm | DN15 | DN20 |
| R | Q3/Q1 | R100/R160 | |
| Q4 Overload Flow | m³/h | 3.125 | 5 |
| Q3 Permanent Flow | m³/h | 2.5 | 4 |
| Q2 Transitional Flow | m³/h | 0.025 | 0.04 |
| Q1 Minimum Flow | m³/h | 0.015625 | 0.025 |
| Connection | G3/4"B | G1"B | |
| Flow Sensor Type | Single-Jet, Dry | ||
| Flow Sensor Material | Brass | ||
| Temperature Class | T30/T50/T90 | ||
| Pressure Loss | △P63 | ||
| Flow Profile Sensitivity | U10/D5 | ||
| Operating Pressure | 16 bar | ||
| Accuracy Class | 2 | ||
| Environment Class | B | ||
| Electromagnetic Ambient Condition | E1 | ||
| Installation Direction | Horizonta/Vertical | ||
| Power Supply | DC3.6V, Lithium Battery | ||
| Meter Life | 10 years | ||
| Ambient Temp | 5°C~55°C | ||
| Storage Temp | -20°C~60°C | ||