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气动压力变送器顾名思义是测量压力信号的。然而,我们在实践中发现气动压力变送器(QBY-11或QBY-21)也可当作气动定值器、气动比值器和气动继动器使用。 1.压力变送器借作定值器使用在没有压力信号时,压力变送器的调零弹簧上的螺钉是调节零位用的。如果在压力变送器的调零螺钉上接装一只旋钮,就能够很方便地旋动旋钮而得到定值输出(0～1.2kgf/cm~2)。用压力变送器代替定值器使用,输出信号稳定,不易漂动,性能可靠。 2.压力变送器借作比值器使用气动比值器的输入与输出信号都是0.2～1.0kgf/cm~2,输出:输入是1:1,或1/4:1,或1:2,或1:3
Pneumatic pressure transmitters, as the name implies, measure pressure signals. However, we have found in practice that pneumatic pressure transmitters (QBY-11 or QBY-21) can also be used as pneumatic setters, pneumatic ratiors and pneumatic relays. 1. Pressure transmitter used as a fixed value device In the absence of pressure signal, the pressure transmitter zero adjustment spring on the screw is used to adjust the zero. If you attach a knob to the pressure transmitter’s zeroing screw, you can easily turn the knob to get the value output (0 ~ 1.2kgf / cm ~ 2). Pressure transmitter instead of the use of fixed value, the output signal is stable, not easy to drift, reliable performance. 2. The pressure transmitter is used as a ratio meter. The input and output signals of the pneumatic ratio meter are 0.2 ~ 1.0kgf / cm ~ 2. The output is 1: 1, 1/4: 1, 1: 2, Or 1: 3