MJN-Series meters use the multi-jet principle, which has been an internationally-accepted standard for many years. This type of water meter is known for its wide range, simplicity, and accuracy in low-quality water conditions. The Seametrics MJN-Series is certifed to NSF/ANSI 61 standards. The impeller is centered in a ring of jets, with inlet jets on one level and outlet jets on another. A gear train drives the register totalizer dials. For pulse output, one of the pointers is replaced by a magnet, which is detected by an encapsulated sensor attached to the outside of the lens. Pulse rate is determined by the dial on which the magnet is placed, and by the number of sensors (single or double).
The MJN-Series has a brass body and is available in 3/4”, 1”, 1 1/2” and 2” versions.
Sensors come in two versions. MJNE have a three wire solid state sensor and MJNR has a two wire reed switch. MJNT models do not have a sensor.