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FTB8020B流量计 美国omega
显示累加流量和流速的水表，可提供脉冲输出
FTB8000B Series
显示累加流量和流速的水表，可提供脉冲输出
Flow Rates from 0.22 to 132 GPM
150 psi Maximum Operating Pressure
40°C (105°F) Maximum Operating Temperature
场脉冲输出可调（可选）
ftb8000b系列仪表使用的多射流原理，已成为*的标准很多年了。这种仪表称为其广泛，简单，精度和低质量的水。叶轮的中心是一个环形射流，在另一层面和出口射流进气喉。一个齿轮驱动寄存器积算仪表盘。脉冲输出，一个圆盘的齿轮代替，使磁铁是由封装的传感器检测到的透镜的外螺纹。脉冲频率由齿轮确定，拨号齿轮上放置。改变脉冲的速率不需要工具，可在现场完成的。
机械，所有ftb8000b米是一样的。之间的差异- PR，PT，和标准模型中的传感器。PR模型米使用固态，持久的霍尔效应传感器，这需要功率。PT模型米用2线簧片开关。他们提供干接点闭合，不需要电源。ftb8000b米总计只有基本没有输出。没有安装水表的上方或在地方的泄漏会造成损伤。
| Model No. | Fittings | Flow Range GPM | Output Type | Pulses per Gallon | Gallons per Pulse |
|---|---|---|---|---|---|
| FTB8007B | ? NPT | 0.22 to 22 | None, total only | — | — |
| FTB8010B | 1 NPT | 0.44 to 52 | None, total only | — | — |
| FTB8015B | 1? NPT | 0.88 to 88 | None, total only | — | — |
| FTB8020B | 2 NPT | 1.98 to 132 | None, total only | — | — |
| FTB8007B-PT | ? NPT | 0.22 to 22 | 2-wire reed switch | 1, 2, 10, 20* | 1, 5, 10, 50, 100 |
| FTB8010B-PT | 1 NPT | 0.44 to 52 | 2-wire reed switch | 1*, 2 | 1, 5, 10, 50, 100 |
| FTB8015B-PT | 1? NPT | 0.88 to 88 | 2-wire reed switch | 1*, 2 | 1, 5, 10, 50, 100 |
| FTB8020B-PT | 2 NPT | 1.98 to 132 | 2-wire reed switch | 1*, 2 | 1, 5, 10, 50, 100 |
| FTB8007B-PR | ? NPT | 0.22 to 22 | Hall-effect sensor | 1*, 10 | 1, 10, 100 |
| FTB8010B-PR | 1 NPT | 0.44 to 52 | Hall-effect sensor | 1*, 10 | 1, 10, 100 |
| FTB8015B-PR | 1? NPT | 0.88 to 88 | Hall-effect sensor | 1*,10 | 1, 10, 100 |
| FTB8020B-PR | 2 NPT | 1.98 to 132 | Hall-effect sensor | 1*,10 | 1, 10, 100 |
* Default setting.
Dimensions(related to table "dimensions")
NPT Size ? 1 1? 2
A (Body) 19 (7?) 26 (10?) 30 (11?) 30 (11?)
B(w/couplings) 32 (12 5/8) 40 (15 5/8) 45 (17 5/8) 45 (17 5/8)
C(BSP Thread) 2.5 (1) 3 (1?) 5 (2) 6 (2?)
D(NPT Thread) 1.9 (?) 2.5 (1) 3.8 (1?) 5 (2)
SPECIFICATIONS
Materials:
Case: Cast bronze
Internals: Engineered thermoplastic
Magnet: Permanent ceramic
Temperature: 40°C (105°F)
Max Operating Pressure: 150 psi
Accuracy: 1.5% of reading
Sensor:
-PR: Hall-effective device
-PT: Reed switch
Max Current:
-PR: 20 mA
-PT: 50 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
Typical Pressure Drop Curve
产品型号/产品描述
NPT Size, Flow Range (GPM), Pulses per Gallon(Default Setting)
FTB8007B 3/4, 0.22 to 22, None
FTB8010B 1, 0.44 to 52, None
FTB8015B 1?, 0.88 to 88, None
FTB8020B 2, 1.98 to 132, None
FTB8007B-PT ?, 0.22 to 22, 20
FTB8010B-PT 1, 0.44 to 52, 1
FTB8015B-PT 1?, 0.88 to 88, 1
FTB8020B-PT 2, 1.98 to 132, 1
FTB8007B-PR ?, 0.22 to 22, 1
FTB8010B-PR 1, 0.44 to 52, 1
FTB8015B-PR 1?, 0.88 to 88, 1
FTB8020B-PR 2, 1.98 to 132, 1
注释: Comes complete with 2 MNPT couplings (already installed), 4 m (12') cable, and operator’s manual.
Changing the pulse rate requires no special tools and can be done in the field.
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