Siemens valve locator product technical description of characteristics and advantage
Siemens intelligent electric valve positioner SIPART PS2 is used to control the pneumatic straight travel or quarter-turn actuators such terminal control components. Electric valve positioner drive to the corresponding valve position and set point. Additional input function can be used for locking valve position or drive the valve to a safe location. In order to achieve this function, a digital input channels has been as standard integration in the base type of product.
Siemens valve locator technical description:
The working principle of Siemens valve positioner and traditional locator is completely different. The microprocessor to set point and actual location. If the microprocessor deviation was detected, it USES a five step switch program to control the piezoelectric valve, piezoelectric valve regulating the flow of into the actuator gas chamber.
Microprocessor based on deviation (set point) and the actual position and direction, the size of the output a control instruction to piezoelectric valve. Piezoelectric valve transfer control instruction for pneumatic position increment.
When the control deviation is large (high speed), Siemens valve positioner output a continuous signal; When little control deviation (low speed), Siemens continuous pulse valve positioner output; When the control deviation is small adjustable (dead zone), there is no positioning signal output.
Advantages: Siemens intelligent electric valve positioner SIPART PS2 provides crucial optimal adaptive or
1, simple installation, automatic initialization (zero adjustment and automatic range);
2, easy to operate, the use of three buttons and user friendly double line shows the local operation and configuration can be performed.
3, high quality control source online adaptive procedures;
4, steady work negligible gas consumption;
5, "close close" function (the largest positioning pressure) ensure that the valve seat;
6, "the position" function: the power or segment of the signal at the current location (SIL requirement does not apply to any occasion);
7, through a simple configuration can achieve a variety of functions (such as setting the characteristic curve and limit value);
8, the valve positioner and actuator extension diagnosis function;
9, straight stroke and stroke operation using the same type of valve positioner;
10 and few moving parts, therefore, is not sensitive to vibration;
11, under extreme environmental conditions, can choose external non-contact sensor;
12, intelligent electromagnetic valve: part of checkerboard solenoid valve functions integrated in one device;
13, the entire test, multi-stage step response test, valve performance testing, for the maintenance of the valve positioner.
14, low gas consumption: Siemens valve positioner itself very low gas consumption. Traditional valve positioner gas consumption is very large. Due to the use of modern technology of piezoelectric valve, Siemens valve positioner in action only when the gas consumption, this means that in a short time to recover investment valve positioner itself.