90年来，SPRIANO设计和制造电子和气动仪表。SPRIANO不仅仅是压力、液位和温度变送器，还是采用 Hart 和 Fieldbus 协议的扭矩管液位变送器的制造商，其可靠性得到了行业认可，如今也适用于特殊应用（PED IV 类）。
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SG77 - PNEUMATIC RELATIVE P.TRANSMITTER PZ
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XC - Body material: AISI 316L
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1 - Bellow: AISI 316 L - Range limits: ±25 bar - Span limits: 1.7 ÷ 17 bar
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A - Gaskets: PTFE
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2 - Bolts and nuts: AISI 316 Class A4 - 70 ISO 3506 NACE MR0175
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1 - Process connection/Supply: 1/2" NPT-F
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1 - Output signal: 0.2 ÷ 1 Kg/cm2
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A - Options: Without
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0 - Options: Without
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Calibration: 2 Kg/cm
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SPRIANO压力变送器SG77系列介绍
SG77 基于力平衡原理工作，由两个主要单元组成： 检测压差变化的测量单元，由两个锻造体和一个波纹管组成。 传输单元将施加到测量元件上的差力转换成比例输出气动信号。 由挡板喷嘴继电器产生的输出压力以不断上升的压力供给反馈波纹管，直到波纹管力和测量元件之间达到平衡。 整个传输单元包含在防水外壳内。
The SG77 works on the force balance principle and consists of two main units: The measuring unit which detects the differential pressure variation and consists of two forged bodies and a bellows. The transmission unit converts the differential force applied to the measuring element into a proportional output pneumatic signal. The output pressure, generated by a flapper nozzle relay, feeds the feedback bellows with a rising pressure until the balance between bellows force and measuring element is reached. The whole transmission unit is contained within a water-resistant housing.
SPRIANO压力变送器SG77系列其他常用型号：
SPRIANO SG77-XC3B100A0
SPRIANO SG77-XC1A211A0
SPRIANO SG74