Naval Surface Warfare Center, Carderock Division, Philadelphia Purchase Branch, Code 335, Bldg. 4, Philadelphia Business Center, Philadelphia, PA 19112-5083

C -- MARKET SURVEY ANNOUNCEMENT ON STEAM GENERATING DEVICES POC Ted Ptashkin, (215) 897-7596 E-MAIL: E-mail address for Ted Ptashkin, ptashkin@mailgate.navsses.navy.mil. NSWC-SSES Philadelphia is seeking sources for materials to support ongoing programs such as control system upgrades on stea generating devices. Many existing Navy steam controls sysstems have become antiquated and training for these systems has become expensive. Therefore NSWC-SSES is in the process of installing state of the art electronic controllers and process transmitters. NSWC-SSES is seeking possible suppliers that can provide microprocessor based control system transmitters that can function as both transmitters and controllers. These units should be physically lightweight, compact, rugged, and durable. Additionally, in their typical mounting configuration, these units must meet Navy shock (Grade A) and vibration requirements as per MIL-S-901D and MIL-S-167 respectively. The transmitter/controller should contain proportional plus integral plus derivative(PID) control capabilities and allow for any combination thereof. Furthermore, the units must have a Windows 95 based software configuration package which supports HART protocol communications. This software package must allow the user to access all configuration settings and should be capable of displaying output data of the unit. These configuration settings include, bare are not limited to: set-up configurations which include inserting the gain and damping parameters for the various modes of control (PID) as determined appropriate for the application; range settings of the input; mathematical functions performed on the input (such as square root functions for flow calculations); display settings of the output; and fail-safe settings. NSWC-SSES desires that the manufacturer be able to provide a unit for each application input range, as is currently the norm for system upgrades. The approximate input ranges of the transmitter/controllers in typical Navy applications are as follows: first, a gage pressure transmitter/controller capable of 0 to 1000 inches of water column; second, a gage pressure transmitter/controller capable of 0 to 2000 psi; third, a gage pressure transmitter/controller capable of 0 to 300 psi; fourth, a differential pressure transmitter/controller capable of 0 to 200 inches of water column; fifth, a differential pressure transmitter/controller sealed sensor (remote seal) unit, with silicone fill capillaries, capable of 0 to 200 inches of water column which will function in applications which may be exposed to vacuum pressures; sixth, temperature transmitter/controllers which works with various RTD's and/or other sensors with resistance or millivolt outputs; and seventh, a differential pressure transmitter/controller capable of 0 to 20 inches of water column. Additionally, the differential pressure transmitter/controller (non-vacuum unit) must allow for mounting of a three value equalizing manifold and associated o-rings on industry standard mounting configurations (2 -- 1/8" center to center connections). The transmitter/controllers must be compatible with fresh water, condensate, steam, oil, nitrogen and other inert gases. Theoutput shall be 4 -- 20 mAdc. The transmitter/controllers must allow for high turn-down ratios on the order of 40:1 as may be required to suit applications. These units must be safety rated for high pressure and/or temperatures. They must be operable in humid and high temperature environments and must be water tight as per MIL-STD-108E and NEMA 4 specifications. Input power requirements shall be 24+/-4.5 volts dc. The interested manufacturer should supply the following information to NSWC-SSES: 1) typical company literature which is normally available to the public; 2) information which states the capabilities of the transmitter/controller and it's software; 3)drawings displaying the size and weight of the unit as well as typical moutning configuration; 4)information stating the design pressure for the transmitter/controller and any related safety information must also be provided; 5) shock test and vibration test reports for the unit (if not already on file with NSWC-SSES) or intentions to perform thesetests are also required (units will not be installed on Naval vessels without conforming to these tests). NSWC-SSES point of contact is Mr. Ted Ptashkin, (215) 897-7596. (0126)

Loren Data Corp. http://www.ld.com (SYN# 0026 19980508\C-0005.SOL)