压力显控器 ( 以下简称仪表 ) 是在受压时，借助于弹性元件的位移同时进行压力指示和控制的新型自控仪表，由于采用了双重弹性元件分别进行压力指示和控制，因而其大幅度提高，同时具有结构合理，控制高、稳定可靠、抗震性优越。触点容量大，使用安装方便，可以进行现场调整等优点。
The pressure control monitor (hereafter refers to as the instrument) is a new kind of automatic control instrument that carries out the pressure indication and the control simultaneously with the aid of the displacement of elastic elements under pressure. Since it adopts the dual elastic elements to carry out the pressure indication and the control respectively, its precision rises substantially. At the same time, it has many advantages such as reasonable structure, high control precision, steady reliable, superior anti-seismic performance and large contact capacity, convenient to use and install as well as adjustable on-the-spot.
二、用途（Usage）:
本仪表适用于对无爆炸危险的非结晶和凝固的无腐蚀性介质压力进行一位或二位式控制。
This instrument is suitable for one or two type control to the amorphous substance with no explosion hazard and the coagulate medium without corrosiveness.
三、主要技术参数（Main technical parameter）:
1. 规格(Specifications)：单位为MPa(The unit is MPa)
注（Note）：1 MPa = 10.2 Kgf/em2
0-0.4; 0-0.6; 0-1; 0-1.6; 0-2.5; 0-4; 0-6; 0-10; 0-16; 0-25; 0-40; 0-60; 0-100.
2. 压力指示（Pressure indication precision）: 1.5
3. 压力控制（Pressure control precision）: 0.5
4. 压力控制范围，压力指示上限值的5-70%(Pressure control scope: 5-70% of the pressure instruction upper limit )
5. 控制方式(Control mode)：
（一）一位式控制（常闭或常开）A type control (closes or opens frequently)
（二）二位式控制（常闭或常开）Two type control (closes or opens frequently)
6. 压力差动值(Pressure differential value)：
不大于压力控制范围上限值的10%(Not larger than 10% of the upper pressure control scope limit.)
7. 触点容量 380V x 2A 220V x 3A(Contact capacity: 380V x 2A 220V x 3A)
8. 使用频率：≤25次/分(Frequency of use: ≤25 times / minute)
9. 使用环境条件：‐40 ― + 60℃相对温度不大于85%(Operating ambient conditions: ‐40 ― + 60℃.The relative temperature is not bigger than 85%.)
四、结构原理(Structural principle):
仪表由弹性元件，控制机构、调整机构、指示装置，表壳及接线盒等组成。
其工作原理是：在介质压力作用下，弹簧管末断产生位移，当压力达到所设定的控制值时，推动微动开关产生瞬间开关动作，使控制系统中的电路得以通断切换，达到自动控制或发出信号的目的。