Hot water meter JS, type JS-02 SMART+, DN15 (1/2"), Q3=2.5 m³/h, R100, Tmax: 90°C, L=110 mm, connection GZ3/4", dry-running, anti-magnetic, brass body 60-3162103-A00

Purpose and Operating Conditions

The water meter is designed for measuring the volume of hot water up to 90°C and cold water up to 50°C in closed systems with full flow. Installation is permitted both horizontally (dial positioned on top or side) and vertically (dial on the side). Maximum operating pressure is 16 bar (PN16), meeting standard requirements for district heating and water supply systems.

Construction and Durability

The housing is made of brass, ensuring durability and corrosion resistance in humid conditions. The measuring mechanism features a turbine wheel with a double-bearing rotor—minimizing friction and extending service life. The meter is anti-magnetic, effectively protecting against unauthorized interference from strong magnetic fields that may disrupt other meter types. The dial is hermetically sealed, resistant to fogging, and features an eight-digit scale protected against mechanical tampering—e.g., with a rotation lock that activates after more than 360° of rotation.

Communication and Installation

The advanced design allows for the installation of communication modules—Wireless M-Bus, M-Bus, and pulse output—without replacing the meter itself. Additionally, the Ti/Ir version enables reading via an inductive overlay, facilitating data access in hard-to-reach locations. IP65 protection rating ensures resistance to dust and water jets—sufficient for installation in technical rooms, stairwells, or distribution cabinets. The connection is a cylindrical internal thread G¾ (BSPT-Rp), with a mounting length of 110 mm—a standard value for DN15, easily integrable with existing piping systems.

Accuracy and Compliance

An R ratio of 80 means the minimum flow rate (Q1) is 0.03125 m³/h, enabling accurate measurement even under low-load conditions, such as when only one tap is in use. The metrological class R100 complies with MID (Directive 2014/32/EU), ensuring legally valid readings for billing purposes. The meter requires no calibration throughout its entire certification period (5 years), and its design includes protection against damage caused by freezing water.