NASA/George C. Marshall Space Flight Center, Procurement Office, Marshall Space Flight Center, AL 35812

66 -- TEMPERATURE HUMIDITY TEST CHAMBER SOL 8-1-8-06-B7586 DUE 032198 POC Rita J. Mason, Contract Specialist, Phone (205) 544-5511, Fax (205) 544-9354, Email rita.mason@msfc.nasa.gov -- David A. Iosco, Contracting Officer, Phone (205) 544-0387, Fax (205) 544-9354, Email david.iosco@msfc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/MSFC/date.html#8-1-8-06-B7586. E-MAIL: Rita J. Mason, rita.mason@msfc.nasa.gov. NASA/MSFC plans to issue a Request for Offer (RFO) for a Temperature Humidity Test Chamber. ITEM I Temperature operating range of -1870C to 1770C, cooling rate capacity to lower chamber air temperature from 230C to -- -1870C in 90 minutes or less, heating capacity to raise chamber air temperature from 230C to 1770C in 60 minutes or less. Temperature control accuracy shall be +/- 10C over the full range. Humidity operating range of 10% to 95% Relative Humidity, with a maximum dry bulb temperature range of +850C and a minimum dew point of +4.450C. Humidity control accuracy shall be +/-4% Relative Humidity over the temperature range. Heating and cooling performance shall be controlled by sensors located in the supply air to the chamber workspace. Dry bulb sensor shall be a 100 ohm @ O0C platinum Resistance Temperature Device. Solid state humidity sensors shall be used for humidity control. High and Low Temperature Limit monitoring safety devices shall be provided for chamber shutdown. Chamber Shutdownwill include thermal conditioning systems as well as the air circulation fan. A running time meter shall be provided to continuously monitor the system run time. Heating system shall be 8 Kilo Watt of air heaters minimum. The refrigeration system shall consist of (2) 5 Horse Power compressors, Cascade type, using OZONE FRIENDLY refrigerants in each respectively capable of achieving -750C. Material Safety Data Sheet shall be provided. Pressure taps and gauges for monitoring the refrigeration systems shall be provided. It shall have hot gas bypass and liquid injection cooling for both compressors. A water cooled condenser with water regulating valve to reduce water consumption shall be provided. Compressors shall be deactivated by a time-out timer when chamber is in heating mode. An Liquid Nitrogen boost cooling system shall be used to achieve the low temperature requirements of -- -750C to -1870C. Chamber shall be of size to have 64 cubic ft. of internal volume for working space (48"x 48" x 48"). Exterior Dimensions shall not exceed 65" wide x 90" deep x 100" high. These dimensions are critical because of the limited size of the door opening through which the chamber shall be brought through for installation. All requirements shall be met for Mil Standard 810 C, D, & E, including upstream and downstream sensors and air baffle. All cooling coils, heating elements and other related conditioning components shall be properly baffled and do not protrude into the workspace. Chamber interior shall be of 304 stainless steel construction, interior floor of 14 gauge or larger, other interior surfaces of 18 or 20 gauge minimum. All welds shall be heliarc welded to insure a hermetic seal preventing moisture migration into the chamber during low temperature operation. The floor shall be capable of holding 300 pounds per square foot Uniform Static Loads, and have a water drain. Three (3) adjustable shelves shall be provided inside the chamber capable of supporting a 100 lb. distributed load. Insulation shall be non-hygroscopic, non-settling and sealed against the atmosphere. Four (4") diameter ports with covers, two per side, shall be provided for instrumentation and cabling . There shall be an internal light provided controlled by an exterior switch. A 24" x 24" multi-pane thermal viewing window with wiper in the door shall be provided. A Honeywell DR-4200GP 1 Pin Microprocessor Recorder and a Honeywell DR-4500 Truline 1 channel Microprocessor Recorder shall be provided for humidity and temperature chart recording. The chamber shall operate off 208/230 VAC, 3 phase, 60 hertz with power indicator lights. Chamber temperature and humidity functions shall be controlled by a RI Dimension II programmer/controller, mounted in the chamber or in a separate instrumentation cabinet. Specification for Honeywell DR 4200 GP Circular Chart Recorder, for recording chamber humidity range. The chart recorder shall utilize microprocessor operation to generate 10-inch charts. The microprocessor shall use the chart range data as will as the input data to determine proper pen position. It shall be user configurable for ready adaptation to varying application requirements associated with environmental chambers. The configuration parameters shall include type of input, chart speed, chart range, alarm settings, control setting, power requirement, mode of operation, and temperature units. The recorder shall have include a self-test system that checks critical operations and draws a test pattern on the chart. The self-test shall be a microprocessor controlled diagnostic program that runs tests on selected circuitry when the recorder is powered up in the Setup mode. CONFIGURABLE PARAMETERS: Chart Speed: 8 hrs, 24 hrs, or 7 days set by means of Jumper Temperature Unit: 0F or 0C set by means of DIP Switch Mode of Operation: Run or Setup set by means of DIP Switch Chart Range: Adjustable within range of sensing element set by means of DIP Switch Alarm Settings: Adjustable within measurement range set by means of DIP Switch Control Settings: Adjustable within measurement range set by means of DIP Switch Input Type: Thermocouples, RTD or Linear set by means of DIP Switch Specification for Honeywell DR 4500A Truline Circular Chart Recorder, for recording temperature, time date and year data. The chart recorder shall utilize microprocessor operation to print the chart and generate the analog traces at the same time to eliminate error due to variations in chart size caused by changes in temperature and humidity. The recorder shall be user configurable, the user configures the recorder by following English language prompts that appear in the digital displays. The configuration data shall be stored in nonvolatile memory for safe keeping in the event of a power failure. The digital display shall present the process variable(PV) value and by key selection, the controller set point, controller output, deviation from reference input, dry bulb temperature, totalization value, or engineering units as desired. The lower display can also be set to scroll or hold. In configuration mode, the digital displays shall be pre-empted by English language prompts and values that the operator use to enter configuration data. The display shall include indicator lights to show alarm condition, which channel PV is on display, use of remote set point, which output relay is on, selected temperature unit, and controllers mode of operation and a deviation bargraph to indicate if process variable is at, above, or below the controller s set point. The recorder shall include a self-diagnostic system that checks critical operations and provide error messages to alert the operator about detected faults. The power-up self-diagnostics shall be microprocessor controlled diagnostic program that runs tests on selected circuitry when the recorder is powered up. A "key" test shall allow the operator to initiate, on demand, a self-diagnostic routine that checks the keypad and front panel displays. The Configurable Parameters are set through the keypad: Chart speed: 8 hrs., 12 hrs., 7 days, or selected hours per revolution Temperature Units: 0F or 0C Mode of Operation: Manual Operation Automatic with local set point Automatic with remote set point Alarm Settings: Adjustable within measurement range Control Setting: Adjustable within measurement range Input Type: Thermocouples, RTD, or Linear Dimension II Controller Specifications: The controller shall be a microprocessor based programmable controller providing the following: A. RS232 Compatibility B. Operating Modes: Auto/Manual Selected for each loop of control separately Run/Hold Selected for each programmer separately C. Process Control Types: Manual Control 0.0 to 100.0 percent reverse output and / or 0.0 to 100.0 percent direct output Auto control PID Parameters D. Control Loops: Number One to eight control loops E. Programmer Capacities: Number of Programmers One to eight (one programmer for each loop of control) Number of Segments 256 (shared by all programmers) Number of Events 12 (programmed on a per segment basis) Max. Segment Time 99 hours Min. SegmentTime 0.1 second Segment Sequencing Forward or backward jumps with nested recycling Programmer Update Rate 0.1 seconds F. Analog Inputs: Number One to six per analog I/O module, max. of 3 analog modules G. Process Outputs: Output Action User configurable as reverse, direct or bi-modal Output Signal Types Analog: Four outputs per analog I/O module H. Alarms: Process Nine alarms per control loop. Input Two alarms for each analog input. I. Digital Outputs: Number of outputs 0 to 2 per analog module. Function User configurable for programmer event output and alarm outputs. ITEM 2 Two (2) sets of installation and interconnection drawings shall be furnished to assist in facilities and installation planning, and to ensure that all existing services are adequate to operate chamber. ITEM 3 Two (2) sets of operator and maintenance instruction manuals with manufacturer data sheets incorporated into the manuals. ITEM 4 The contractor shall provide a factory trained representative for startup and checkout of equipment andcomponents of the chamber at Marshall Space Flight Center, Huntsville, Al. The contractor is not required to install the chamber. MSFC shall provide installation of the chamber in the facility. All water, air, filtration and electrical service are in place. Contractor shall provide one day of training for 15 environmental test personnel in the operation of the complete system. The Government intends to acquire a commercial item using FAR Part 12. This procurement is a total small business set-aside. See Note 1. The SIC Code and Size Standard are 3569 and 500 employees, respectively. The DPAS Rating for this procurement is DO-C9. The provisions and clauses in the RFO and model contract are those in effect through FAC 97-03 All qualified responsible sources may submit an offer which shall be considered by the agency. The anticipated release date of the RFO is on or about 15 days after issuance of synopsis with an anticipated offer due date of on or about 30 days after issuance of RFO. An ombudsman has been appointed -- See Internet Note "B". The solicitation and any documents related to this procurement will be available over the Internet. These documents will be in Microsoft Office Suite (Word 6.0, Excel 5.0, PowerPoint 4.0) format and will reside on a World Wide Web (WWW) server, which may be accessed using a WWW browser application. The WWW address, or URL of the NASA/MSFC Business Opportunities home page is http://procurement.nasa.gov/EPS/MSFC/class.html. Prospective offerors shall notify this office of their intent to submit an offer. It is the offeror's responsibility to monitor this site and/or the CBD for the release of the solicitation and amendments (if any). Potential offerors will be responsible for downloading their own copy of the solicitation and amendments (if any). Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nnotes.htm. (0065)

Loren Data Corp. http://www.ld.com (SYN# 0402 19980310\66-0007.SOL)