Name: Dwyer 便攜式超聲波流量計套件 PUF
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Dwyer 便攜式超聲波流量計套件 PUF

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產品簡介

PUF系列便攜式超聲流量計套件，利用傳輸時間差測量管道流量

產品介紹

PUF系列便攜式超聲流量計套件，利用傳輸時間差測量管道流量。它是一款小巧輕便的儀器，采用了的電子和信號處理技術，實現了高性能和易于操作。該設備內置電池，可連續工作20小時。 PUF配備了一個IP67的保護箱，帶有模制泡沫插入件，以容納和保護所有設備，防止灰塵和水。屏幕提供易于閱讀的文本與方便的背光。功能鍵的有效布局增加了本單元的易于使用的編程。該設備配有RS232和USB接口，可以方便地連接到任何個人電腦或打印機。

操作原理兩個傳感器被放置在管道的外部，每個傳感器通過管道和流體向另一個發送超聲波脈沖。液體流經管道的速度使脈沖加速或減速。利用兩個脈沖的傳輸時間之差來計算流量。通過時間的使用使流量計不受壓力或溫度變化的影響。

Service:Homogeneous liquids that do not contain air bubbles capable of ultrasonic wave propagation.

Inputs:Lemo connector cable from sensors.

Range:0.33 to 65.62 ft/s (0.1 to 20 m/s).

Display:240 x 64 pixel graphic display, high contrast black on white with backlight; Languages: English, French, German, Swedish, Italian, Spanish, Portuguese, Russian, Norwegian, and Dutch; 5.2" W x 1.5" H (132.1 x 38.1 mm).

Accuracy:± 0.5 to 2% of flow reading for flow rate > 0.66 ft/s (0.2 m/s) and Pipe ID > 3 in (75 mm). ± 3% of flow reading for flow rate > 0.66 ft/s (0.2 m/s) and Pipe ID in range 0.5 to 3 in (13 to 75 mm). ± 6% of flow reading for flow rate < 0.66 ft/s (0.2 m/s).

Power Requirements:9 to 24 VDC; (1) 5-Cell NiMH battery, internal, factory replaceable (continuous operation time: 20 hours with back light and output off); (recharging time: 6.5 hours, power adapter used).

Power Consumption:10.5 W.

Power Adapter:110/240 VAC adapter; UK,US, European adapters included.

Temperature Limits:-4 to 275°F (-20 to 135°C).

Outputs:

Analog:
1 opto-isolated output: 4 to 20 mA, 0 to 16 mA or 0 to 20 mA (selectable); Error current: 0 to 26 mA (selectable); Load resistance: 620 O max;
Pulse:
1 opto-isolated MOSFET relay, 150 mA max, 500 pps max, 200 Hz max.

Serial Communications:USB; RS-232.

Enclosure Rating:Transducers: IP51; Carrying Case: IP67; Converter: IP54.

Materials:Flame retardant injection molded ABS plastic.

Repeatability:±0.5 % of measured value or ±0.066 ft/s (0.02 m/s).

Electrical Connections:Multi-pin Lemo plugs.

Turbidity:<3% by volume of particulate content.

Permissible Air Content:<3% by volume.

Response Time:<500 ms.

Weight:Unit without accessories: 2.30 lb (1.06 kg); Unit with accessories in carrying case: 14.40 lb (6.52 kg).

Agency Approvals:CE.

ADDITIONAL SPECIFICATIONS

Applicable Pipe Material:Carbon steel, SS, copper, UPVC/PVDF, concrete, galvanized steel, mild steel, glass, brass.

Applicable Pipe Lining:Rubber, glass, concrete, epoxy, steel, other*.

Pipe Wall Thickness:0.04 to 3" (1 to 75 mm).

Pipe Lining Thickness:< 1" (< 25 mm).*Selectable option for special material with known propagation rate of the lining material.

Model	Description
PUF-1001	Portable ultrasonic flowmeter Type A/B, 0.5 to 78" (13 to 2000 mm) pipe size, transducers with data logger.
PUF-1002	Portable ultrasonic flowmeter Type A, 0.5 to 4.5" (13 to 115 mm) pipe size, transducers with data logger.
PUF-1003	Portable ultrasonic flowmeter Type B, 2 to 78" (50 to 2000 mm) pipe size, transducers with data logger.

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