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FTB8020B-PR流量計 美國omega
顯示累加流量和流速的水表，可提供脈沖輸出
FTB8000B Series
顯示累加流量和流速的水表，可提供脈沖輸出
Flow Rates from 0.22 to 132 GPM
150 psi Maximum Operating Pressure
40°C (105°F) Maximum Operating Temperature
場脈沖輸出可調（可選）
ftb8000b系列儀表使用的多射流原理，已成為*的標準很多年了。這種儀表稱為其廣泛，簡單，精度和低質量的水。葉輪的中心是一個環形射流，在另一層面和出口射流進氣喉。一個齒輪驅動寄存器積算儀表盤。脈沖輸出，一個圓盤的齒輪代替，使磁鐵是由封裝的傳感器檢測到的透鏡的外螺紋。脈沖頻率由齒輪確定，撥號齒輪上放置。改變脈沖的速率不需要工具，可在現場完成的。
機械，所有ftb8000b米是一樣的。之間的差異- PR，PT，和標準模型中的傳感器。PR模型米使用固態，持久的霍爾效應傳感器，這需要功率。PT模型米用2線簧片開關。他們提供干接點閉合，不需要電源。ftb8000b米總計只有基本沒有輸出。沒有安裝水表的上方或在地方的泄漏會造成損傷。
| 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
產品型號/產品描述
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
注釋: 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.
FTB8020B-PR流量計 美國omega
美國omega FTB3002齒輪流量計
