美国omega FTB8007HW流量计
显示累加流量和流速的热水仪表，可提供脉冲输出 FTB8000HW Series 显示累加流量和流速的热水仪表，可提供脉冲输出
Flow Rates from 0.22 to 132 GPM 150 psi Maximum Operating Pressure 90°C (194°F) Maximum Operating Temperature Field-Adjustable Pulse Output (Optional)
The FTB8000HW 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 lowquality water. 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 dials is replaced by a gear, which turns a magnet that is detected by an encapsulated sensor threaded into the outside of the lens. Pulse rate is determined by the gear and the dial on which the gear is placed. Changing the pulse rate requires no special tools and can be done in the field. Mechanically, all FTB8000HW meters are the same. The difference between the -PR, -PT, and standard models is in the sensor. -PR model meters use a solid state, longlasting Hall-effect sensor, which requires power. -PT model meters use a 2-wire reed switch. They provide a dry-contact closure and do not require power. Basic FTB8000HW meters totalize only and do not have an output. Never install water meters above or over areas where leakage would cause damage. SPECIFICATIONS Materials: Body: Cast bronze Internals: Engineered thermoplastic Magnet: Permanent ceramic Max Temperature: 90°C (194°F) Max Operating Pressure: 150 psi Accuracy: 1.5% of reading Sensor: -PR: Hall-effect device -PT: Reed switch Max Current: 20 mA Max Voltage: -PR: 24 Vdc -PT: 24 Vdc or Vac Sensor Power (-PR): Minimum 6 mA at 12 Vdc Cable Length: 4 m (12') standard, 600 m (2000') max Flow Rates (GPM): NPT Size ? 1 1? 2 Minimum 0.22 0.44 0.88 1.98 Maximum 22 52 88 132
产品型号/产品描述 FTB8007HW 3/4NPT, 0.22 to 22 GPM, total only FTB8010HW 1NPT, 0.44 to 52 GPM, total only FTB8015HW 1 1/2NPT, 0.88 to 88 GPM, total only FTB8020HW 2NPT, 1.98 to 132 GPM, total only FTB8007HW-PT 3/4NPT, 0.22 to 22 GPM, 20 Pulse/gallon FTB8010HW-PT 1NPT, 0.44 to 52 GPM, 1 Pulse/gallon FTB8015HW-PT 1 1/2NPT, 0.88 to 88 GPM, 1 Pulse/gallon FTB8020HW-PT 2NPT, 1.98 to 132 GPM, 1 Pulse/gallon FTB8007HW-PR 3/4NPT, 0.22 to 22 GPM, 1 Pulse/gallon FTB8010HW-PR 1NPT, 0.44 to 52 GPM, 1 Pulse/gallon FTB8015HW-PR 1 1/2NPT, 0.88 to 88 GPM, 1 Pulse/gallon FTB8020HW-PR 2NPT, 1.98 to 132 GPM, 1 Pulse/gallon
注释: Comes with 2 MNPT couplings (already installed), 4m (12') cable, and complete operator’s manual.
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