User manual HONEYWELL RP7517B

[. . . ] ELECTRONIC/PNEUMATIC TRANSDUCER PRODUCT DATA RP7517A RP7517A/B SPECIFICATIONS Type No. APPLICATION An E/P Transducer accepts a proportional voltage signal from an electronic controller and converts it into a proportional pneumatic signal of 0. 2 to 1. 0 bar to operate pneumatic actuators or reset pneumatic controllers. The RP7517A accepts a 2. . . 10 Vdc / 4. . . 20 mA signal directly from a MicroniK 100 output. The RP7517B includes a voltage-to-current converter for use with an Excel DDC output and Delta CPA. [. . . ] Wiring and connections NOTE: The E/P Transducer connection wire 24 V (black) must be connected to the same potential 0 V level as the controller or Delta DGP. ® U. S. Registered Trademark Copyright © 2008 Honeywell Inc. · All rights reserved EN0B-0635GE51 R0908 RP7517A/B ELECTRONIC/PNEUMATIC-TRANSDUCER OPERATION The basic operation is similar for both E/P-Transducers: The input signal 2. . . 10 V is fed directly to a coil on the RP7517A or into a voltage to current converter in the RP7517B. The current through the coil produces a magnetic force on the flapper. This force is balanced by the feedback force developed by the nozzles pressure on the opposite side of the flapper. When the magnetic force on the flapper changes due to a change in current, the position of the flapper over the nozzle changes, and a new pressure is established. This pressure is used to pilot the pneumatic amplifier, which converts the low capacity pilot pressure to a high capacity branch line. The operation span is fixed and the start-point of the output signal is factory calibrated. Both transducers are compensated to eliminate ambient temperature influence. The transducers are protected by a rigid plastic cover. 51. 5 4. 5 47 38 1. For test or indication gauge 78 diameter 4. 1 2. Additional length to dismount from rail Fig. Mounting 5° 7 62 13. 5 START-UP INSTRUCTIONS Before starting up the system, the following checks should be made on the transducer: 1. Check that main line pressure is available and input voltage is at maximum i. e. [. . . ] Rail mounting using the European Standard Rail 35 x 7. 5 (EN 50022) (see Fig. Mount the transducer in the vertical position ONLY with a maximum of 5 angular degree tolerance to the perpendicular line (see Fig. 2). Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Ecublens, Route du Bois 37, Switzerland by its Authorized Representative: Automation and Control Solutions Honeywell GmbH Böblinger Strasse 17 71101 Schönaich / Germany Phone: (49) 7031 63701 Fax: (49) 7031 637493 http://ecc. emea. honeywell. com Subject to change without notice. [. . . ]