流量和总计输出
SFI-100T系列可视流量指示器和变送器是一种低成本、耐用的流量变送器，它将我们流行的100系列可视流量指示器与我们的a-711T输出传感器结合起来，用于可视和远程监测流量。A-711T输出传感器有两个脉冲电压信号，一个提供5 VDC脉冲，另一个提供所用输入电源电压的脉冲，范围为8至28 VDC，脉冲输出的频率变化与流速成比例。
产品应用
监控冷水或热水流量监控冷水机冷却和润滑回路中的水流量hvac系统
特征
由坚固的黄铜主体和钢化玻璃窗构成
鲜红的叶轮能清楚地显示出通过窗户的水流
前车窗可以很容易地拧下，以清除可视流量指示器
户外应用的理想选择，不受紫外线影响

Service:Compatible fluids.

Wetted Materials:

Body: Brass; Window: Tempered glass; Rotor: Red UV stabilized PBT; Rotor pin: 316 SS; Thrust washers: 300 series SS; Gasket: Buna-N.

Temperature Limits:-20 to 200°F (-29 to 93°C).

Pressure Limits:125 psi (8.62 bar).

Viscosity Maximum:200 SSU.

Weight:SFI Only: 1.5 lb (0.7 kg); with A-711T: 1.8 lb (0.8 kg).

ELECTRICAL SPECIFICATIONS

Temperature Limits:-20 to 212°F (-29 to 100°C).

Power Requirements:8 to 28 VDC.

Output Signal:White lead: 5 VDC; Green lead: 8 to 28 VDC equal to supply voltage. Pulsed output with frequency rate proportional to flow rate.

Accuracy:±5% of FS.

Frequency Output Range:0 to 100 Hz.

Mounting Orientation:Horizontal.

Electrical Termination:Black lead: Ground; White lead: 5 VDC out pulse; Green lead: 8 to 28 VDC out pulse; Red lead: 8 to 28 VDC supply.

Model    Description
SFI-100T-1/2-A711T    Brass sight flow indicator with A-711T sensor, range 2-20 GPM (7.6-75.5 LPM), 1/2" female NPT.
SFI-100T-3/4-A711T    Brass sight flow indicator with A-711T sensor, range 3-35 GPM (11.4-132.5 LPM), 3/4" female NPT.