Dwyer 液用差压变送器 629C系列
629C系列湿/湿差压变送器，以0.5％的精度监测空气及兼容气体和液体的压差。该设计采用双压力传感器将压力变化转换为标准的4至20 mA输出信号或现场可选电压。内部体积小，移动部件少，因此具有出色的响应和可靠性。 在顶盖下方可以轻松接触到接线盒和零点调整按钮。 629C系列差压变送器的设计符合NEMA 4X（IP66）结构。

介质：兼容的气体和液体。
接液材质：不带阀门：316，316L不锈钢。可选阀门的附加接液部分:丁腈橡胶，硅脂，PTFE，黄铜360，铜和增强共聚物。
精度：正负0.5%FS（包括线性，滞后和可重复性）
稳定性：正负1%FS/年
温度限制：0 to 200°F（-18 to 93°C）
补偿温度限制：0 to 175°F（-18 to 79°C）
热效应：平均0.04%/°F
（0.072%/°C）（包括零点和跨度）
电源要求：2线：10至35VDC；3线：13至35VDC或隔离16至33VAC（反极性保护）。
信号输出：2线:4至20mA；3线：现场可选0至5,1至5,0至10或2至10 VDC。
零点和单位：按下导管外壳内的按钮。
响应时间：400毫秒
机构认证：CE

The Series 629C Wet/Wet Differential Pressure Transmitter monitors differential pressure of air and compatible gases and liquids with 0.5% accuracy. The design employs dual pressure sensors converting pressure changes into a standard 4 to 20 mA output signal or field selectable voltage. Small internal volume and minimal moving parts result in exceptional response and reliability. The terminal block, as well as a zero adjustment button, are easily accessed under the top cover. 

The Series 629C, with the optional factory installed remote sensors, are connected to the unit, either via armored or shielded cable and available in 10 and 20' lengths. Installation is much simpler, reducing labor and material cost versus traditional copper piping installations and no need for valve manifolds. 

The 629C family has a robust NEMA 4X (IP66) construction, which is also available with an integral LCD for localized data monitoring.