Seametrics MJ / MJH Series Pulse Meters

Bronze Body Pulse Meters for Cold and Hot Water

MJ-Series meters use the multi-jet principle, which has been an internationally-accepted standard for many years. This type of meter is known for its wide range, simplicity, and accuracy in low-quality water. Seametrics offers cold or hot water models. 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).

Changing the pulse rate can easily be done in the field. Mechanically, all MJSeries meters are the same. The difference among *MJE/MJHE, *MJR/MJHR and *MJT/MJHT meters is in the sensor. MJE/MJHE meters use a solid-state, long-lasting Hall-effect sensor, which requires power. It is suited for use with Seametrics controls and metering pumps that have sensor power. MJR/MJHR meters use a two-wire reed switch. They provide a dry contact closure and do not require power. MJT/MJHT meters totalize only and do not have a sensor.

*Note on Nomenclature: Meter names that include "H" are hot water models. Without the "H" = cold water models.

Features and Specifications
  • Designed for metering pump pacing or water treatment control
  • Hot or cold water models
  • Rugged epoxy-coated bronze bodies with union ends
  • Mechanical register
  • Reed switch (MJR) or Hall-effect (MJE) output
  • 100:1 turndown
  • Wide range of field-changeable pulse rates
  • True dry-top construction
MJ / MJH Series

73 items

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  • Seametrics Certified Cold Water Pulse Meter MJNR-100-1G
    MJNR-100-1G

    Seametrics

    Product Type: Pulse Meters

    Flow Range: 0.44 - 52 gpm

    Max. Pressure: 150 PSIG

    Seametrics MJN-Series NSF-61 Certified Cold Water Pulse Meter, 1.0 FPT, dry contact, two-wire reed switch sensor, eco-brass alloy body, 150 psig@ 105 deg F, 0.44-52 gpm, 1 gal/pulse, 24 VDC 20 mA output.
    Qty in Cart: 0
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  • Seametrics Certified Cold Water Pulse Meter MJNR-150-1G
    MJNR-150-1G

    Seametrics

    Product Type: Pulse Meters

    Flow Range: 0.88 - 88 gpm

    Max. Pressure: 150 PSIG

    Seametrics MJN-Series NSF-61 Certified Cold Water Pulse Meter, 1-1/2 FPT, dry contact, two-wire reed switch sensor, eco-brass alloy body, 150 psig@ 105 deg F, 0.88-88 gpm, 1 gal/pulse, 24 VDC 20 mA output.
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  • Seametrics Certified Cold Water Pulse Meter MJNR-075-10P
    MJNR-075-10P

    Seametrics

    Product Type: Pulse Meters

    Flow Range: 0.22 - 22 gpm

    Max. Pressure: 150 PSIG

    Seametrics MJN-Series NSF-61 Certified Cold Water Pulse Meter, 3/4 FPT, dry contact, two-wire reed switch sensor, eco-brass alloy body, 150 psig@ 105 deg F, 0.22-22 gpm, 10 pulse/gal, 24 VDC 20 mA output.
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  • Seametrics Cold Water Pulse Meter MJR-075-10G
    MJR-075-10G

    Seametrics

    Product Type: Pulse Meters

    Flow Range: 0.22 - 22 gpm

    Max. Pressure: 150 PSIG

    Seametrics MJ-Series Cold Water Pulse Meter, 3/4 FPT, dry contact, two-wire reed switch sensor, cast bronze body, 150 psig @105 deg F, 0.22-22 gpm, 10 gal/pulse, 24VDC 20 mA output.
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  • Seametrics Cold In Line Pulse Meter MJR-200-1G
    MJR-200-1G

    Seametrics

    Product Type: Pulse Meters

    Cable Length: 12 ft.

    Flow Range: 1.98 - 132 gpm

    Max. Pressure: 150 PSIG

    Seametrics MJR-200-1G Pulse Meter, Cold water, Reed switch, 2", 1 Gal/Pulse
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  • Seametrics Cold Water Pulse Meter MJR-075-1G
    MJR-075-1G

    Seametrics

    Product Type: Pulse Meters

    Flow Range: 0.22 - 22 gpm

    Max. Pressure: 150 PSIG

    Seametrics MJ-Series Cold Water Pulse Meter, 3/4 FPT, dry contact, two-wire reed switch sensor, cast bronze body, 150 psig @105 deg F, 0.22-22 gpm, 1 gal/pulse, 24VDC 20 mA output.
    Qty in Cart: 0
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  • Seametrics Cold Water Pulse Meter MJR-150-1G
    MJR-150-1G

    Seametrics

    Product Type: Pulse Meters

    Flow Range: 0.88 - 88 gpm

    Max. Pressure: 150 PSIG

    Seametrics MJ-Series Cold Water Pulse Meter, 1-1/2 FPT, dry contact, two-wire reed switch sensor, cast bronze body, 150 psig @105 deg F, 0.88-88 gpm, 1 gal/pulse, 24VDC 20 mA output.
    Qty in Cart: 0
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  • Seametrics MJR-100-1G Pulse Meter Seametrics MJR-100-1G Pulse Meter
    MJR-100-1G

    Seametrics

    Product Type: Pulse Meters

    Cable Length: 12 ft.

    Flow Range: 0.44 - 52 gpm

    Max. Pressure: 150 PSIG

    Seametrics MJR-100-1G Pulse Meter, Cold water, Reed switch, 1", 1 Gal/Pulse
    Qty in Cart: 0
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