These enclosures are constructed of die cast aluminum with an epoxy coating for chemical and corrosion protection. Purchase Order Terms and Conditions. French German Portuguese Spanish. One digital input is also included. Skip directly to content. High temperature option only available on P models without electrical options, indicators, gauges, limit switches, or feedback devices.
Call a Lesman sales specialist at Feedback circuits direct the actuator’s position, ensuring adherence to the control instrument signal. In all cases, including bottom-loading applications, a Model 73 Built-In Pneumatic Valve Positioner is mounted directly on the topwork of the valve, with no external levers or other exposed mechanisms. A spool valve is used to load the actuator for positioning in response to an input signal. No additional parts are necessary to change between single- or double-acting actuators or direct and reverse action. Call a Lesman sales specialist at A complete catalog number will look like this: They are made with a vibration-resistant design and a corrosion-resistant aluminum diecast body.
The base pneumatic unit provides cam characterization, split ranging, direct or reverse action, and single or double acting without requiring additional parts. Series valve positioners include provisions for internal limit switch mounting and position feedback devices without requiring additional housings.
Blog Product Profile Sizing Software. Intrinsically safe versions are also available. A complete catalog number will look like this: The positioner operating mode automatic or manual and alarm messages are also shown.
Thus, the need to stack housings that impede access to the main enclosure are eliminated. For cam activated indication of sreies travel limits, two output formats are offered: Solutions for Industry go. The air supply shall be controlled by Piezo valve technology which offers reduced air consumption during operation and zero bleed during steady state.
Provisions for internal limit switch mounting and position feedback devices without requiring additional housings in most models. Bray Series 6A Electro-pneumatic Positioner or approved equal. With the housing cover removed, the keypad push buttons are accessible to perform a variety of functions:.
Turn off more accessible mode. Extra high capacity pilots ensure maximum frequency response and optimum stroking speeds for all actuator sizes.
Feedback circuits direct the actuator’s position, ensuring adherence to the control instrument signal. A solid workhorse you can depend on for consistent, reliable control.
Posicionador siemens sipart ps2 manual
Belt Scale and Weighfeeder Systems go. The electro pneumatic positioner moves the actuator to a valve position corresponding to the setpoint. The LCD display is viewed from behind a sodium glass explosion proof window.
Don’t see the option you need? Auto Calibration Calibration is easily performed by entering only three parameters into keypad push buttons. Industries Quality Design Certifications. Series 73 Built-in Pneumatic Valve Positioner. Model Selection Guide Use this table to find the right model for your application. Click the file icon to view the file online, or right-click on the file icon and select “Save Target As Their modular concept allows all models to be built on the base pneumatic unit P.
These modules increase air volume output and decrease response time. Negative feedback pilot circuit allow the positioner to operate with a push-pull gain of more than This mA DC output board indicates valve position to the control room. Series 6A Electro-Pneumatic Positioner.
Valve position can be manually adjusted locally by removing the housing cover, then using the push buttons to override the remote command signal. The standard waterproof enclosure is constructed of a durable, lightweight polymer, providing excellent chemical and corrosion resistance. Products Resilient Seated Valves. Key design features include non-interaction of the zero and span adjustments. Other Positioners – Series The alarm is shown locally on the LCD and may be sent to the remote control panel.
Units for rotary single acting and double acting actuators are offered as standard.
Two semiconductor switch outputs and one alarm output may be programmed to activate at various travel positions. Provides visual confirmation of valve position in precise one degree increments, operating status and keypad entries with the housing cover in poicionador.
Conventional Valve Positioners – Siemens
Model 74 Pneumatic Valve Positioners are universal positioners that provide versatility, dynamic performance, and high positioning accuracy. Tools Siemens Industry, Inc. If you want to print a large file, download it to your PC first.
Process Instrumentation and Analytics go. Explosion Proof Designed for hazardous and severe applications, Series 6A explosion proof positioners offer all the features of the waterproof units in a flame-proof enclosure. We’ll post videos we create, and those our manufacturer partners posicipnador with us, so you don’t have to look in multiple places to find the video training you need.
An internal monitor shall be provided to transmit a fault signal alarm if the air supply fails. If you are outside that area, you can find your local sales office or get technical assistance by calling oror sending an email to piabusales.
Pneumatic Regulators and Relays go.