低摩擦軸承，壽命長，1/2至8“管道（12.7至203 mm）
PDWS插入式葉輪流量計設計用于1/2至8”的管道尺寸，可用材料包括黃銅、不銹鋼、PVC和聚丙烯。PDWS系列適用于PWF系列、各種定制三通、鞍座或青銅、PVC和不銹鋼焊接配件。
工作原理
使用葉輪旋轉來測量流量。液體流動推動轉子，旋轉由霍爾效應傳感器檢測。輸出為電流衰減脈沖信號，可連接至系列RTI以顯示流量和總流量，或連接至系列BAT以顯示4至20 mA模擬信號。
附件
BAT，盲模擬變送器，將脈沖輸出轉換為4至20 mA模擬輸出。外殼通電，儀表回路通電。RTI2，速率總計指示器，將脈沖輸出轉換為4至20 mA模擬輸出，并帶有本地流量和累加顯示。該裝置為回路供電，可安裝在儀表外殼上，并提供高/低流量警報。PWD，脈沖分配器，用于起搏電子計量泵。該裝置使用旋轉開關將輸入頻率分為1到9999之間的任意數字，以適應多個計量泵的輸入。
產品應用
工業水和廢水處理冷卻水監控工業流體控制化學配比波動流體傳導性應用
特點
軸承減少摩擦系數，保持高精度
PVC和聚丙烯主體材料提供抗腐蝕性介質
Service:Compatible clean liquids.
Range:0.3 to 30 ft/s (0.09 to 9.14 m/s).
Wetted Materials:
Sensor: Brass, 316 SS, PVC, or polypropylene; Rotor: PVDF; Shaft: Nickel-bonded tungsten carbide (ceramic optional); Bearings: Ruby jewel; O-Ring: EPDM (fluoroelastomer optional).
Accuracy:±1.5% FS.
Temperature Limits:Brass, 316 SS: 200°F (93°C); PVC, Polypropylene: 130°F (55°C).
Pressure Limits:
Brass: 200 psi (14 bar); 316 SS: 250 psi (17 bar); PVC, polypropylene: 175 psi (12 bar) @ 75°F (24°C); High pressure option: 400 psi (28 bar) (SS only).
Process Connection:See catalog page.
Output:
Current sinking, square wave pulse, opto-isolated.
Power Requirements:6 to 24 VDC, 2 mA (max. 20 mA).
Electrical Connection:#22 AWG, 3 conductor, 18' (5.5 m) cable (max. 2000' run).
Enclosure Rating:NEMA 4X (IP66).
Weight:2 lb (907 g).
| EXAMPLE | PDWS | 1 | B | CRS | Series PDWS-1B-CRS |
| SERIES | PDWS | Insertion Paddlewheel Flow Sensor | |||
| SIZE | 1 2 | 1-1/2 to 3 inch pipe 4 to 8 inch pipe | |||
| MATERIAL | B P S Y | Brass PVC 316 Stainless steel Polypropylene | |||
| OPTIONS | CRS FOR HPO IMM MPU PC4 PC5 SCC | Ceramic shaft Fluoroelastomer o-ring High pressure option Immersible Micropower pickup Metering pump 4-pin connector Metering pump 5-pin connector 3-pin control connector | |||
| Note: Need to purchase with Series PWF fitting for proper installation. |
