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Model-40 - 9 Pages

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Catalogue excerpts

Product Data PNEUMATIC CONTROLLERS AND TRANSMITTERS Model 40 Pneumatic Indicating Controllers DESCRIPTION Model 40 Pneumatic Controllers automatically position a valve or other final control element to maintain process pressure at the desired set point. As receiving controllers, they can control any process variable transmitted as a pneumatic signal. l Quality, flexibility, accuracy and dependability Standard models have proportional band adjustments for controlling processes where load changes are infrequent and can be corrected by the manual reset feature, standard in every controller. By a simple screwdriver adjustment, the standard proportional controller can be changed to two-position control action with adjustable differential gap. l Easy field calibration Model 40 controllers are available with control modes of 100% proportional, 200% proportional plus reset and 300% proportional plus reset plus rate (PID) for processes with frequent load changes. They not only satisfy ordinary control requirements, but are equally proficient in controlling processes with unfavorable characteristics. The basic instrument is also available as an indicating pneumatic transmitter. Mounted close to the point of measurement, it transmits an air pressure signal proportional to the measured variable to another indicator, recorder or controller. l Indication of measured variable l A non-bleed, high-capacity relay with excellent stability and fast response l Broad selection of control modes; proportional plus reset, proportional plus reset plus rate, differential gap and two position bypass l Wide selection of process measuring elements for pressure, differential pressure, flow and level l Large, easy-to-read black on white dial for maximum resolution l Case and door with epoxy powdered finish for environmental protection SPECIFICATIONS INDICATION ACCURACY: 1% middle half of scale, 1-1/2% remainder; most ranges may be calibrated to 1/2% accuracy at nominal extra charge SENSITIVITY: Less than 0.1% of full scale at 100% proportional band FREQUENCY RESPONSE: Flat to 400 CPM with 200 feet of 1/4" tubing and 1.2 cubic inch capacity. Flat to 120 CPM with 18' 3/8" tubing and 200 cubic inch capacity CONSTRUCTION: Moving parts are designed as light as possible to keep friction and inertia forces low, also resulting in higher resistance to vibration and shock MOUNTING: Surface, flush panel, pipe-supported or valvemounted; dimensions on page 8 AIR SUPPLY: 20 psi for 3-15 psi range; 35 psi for 3-27 and 6-30 psi range; 65 psi for 12-60 psi range. A filter and dripwell are recommended ahead of each controller to ensure clean, dry air supply; may be operated on natural gas or bottled CO2 CONNECTIONS: Standard back connections are 1/4" female NPT MEASURING ELEMENTS: A wide range of precalibration measuring elements for pressure available – consult factory Model 40 Pneumatic Controllers MODULAR CONSTRUCTION: Each of the following components may be removed without disturbing the other components: control chassis complete, precalibrated elements, feedback assemblies, complete relay units, or supply gauge only, nozzle feed orifice and cleaner assembly only, relay diaphragm housing and valve stem only, output gauge and tubing only On-line order fax: +1 215-323-9450 or e-mail: usg.sales@ametek.com Sales/Technical Support: +1 215-293-4100 | 205 Keith Valley Road | Horsham PA 19044 U.S.A. © 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. 12/2013 (160174) Specifications are subject to change without notice. Visit our Web site for the most up-to-date information.

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Product Data PNEUMATIC CONTROLLERS AND TRANSMITTERS Model 40 Pneumatic Indicating Controllers Guide to Controller Selection Type Of Process Dynamics Control Required Capacity Lag Large Tank Found when there is an appreciable inventory or storage of the controlled medium Level control in process retention tanks; batch heating Found when it is necessary to force corrective action through a resistive element before it affects the process Proportional plus rate plus reset Instantaneous Response Found when the manipulated variable is the same as the controlled variable or if they are dynamically equal Flow...

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Product Data PNEUMATIC CONTROLLERS AND TRANSMITTERS Model 40 Pneumatic Indicating Controllers FEATURES 1 ADJUSTING WRENCH – 1/4" x 1/8" stored on door can be used for all necessary adjustments on movement, pointers and nozzle. – Anodized aluminum shroud brightens dial area for greater visibility under adverse lighting conditions. – Die-cast aluminum with semi-flat black powdered epoxy finish. – Sapphire 0.008" bore with integral pushbutton cleaner. – Non-bleed, high capacity relay is standard on all controllers. Bleed rate of less than 0.1 SCFM at 9 psi output and the capacity to deliver over...

 Open the catalogue to page 3

Product Data PNEUMATIC CONTROLLERS AND TRANSMITTERS Model 40 Pneumatic Transmitters DESCRIPTION The Model 40 Pneumatic Transmitter is designed to sense pressure and transmit an air signal which is precisely proportional to the measured variable. This output signal from the transmitter may be fed to any remotely located monitoring, recording or control instrument. l Reliability – highly essential, since a transmitter must Model 40 pneumatic transmitters insure increased safety by eliminating the need for piping high-pressure, toxic, corrosive, inflammable or other dangerous fluids or gases through...

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Product Data PNEUMATIC CONTROLLERS AND TRANSMITTERS Precalibrated Measuring Elements PRESSURE “C” Type Bourdon Tubes: Model 40 Pneumatic Controllers and Transmitters are furnished with precalibrated “C” type Bourdon tube measuring elements. The wide, powerful Bourdon tube is carefully drawn, coiled and heattreated to ensure a precise measuring element, permanent in calibration, and having exceptional overrange capacity. Phosphor bronze tubes are soft-soldered into cast brass sockets. Stainless steel elements are inert gas welded to provide maximum corrosion resistance. Standard ranges are listed...

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