DOE/Federal Energy Technology Center, P.O. Box 10940, MS 921-107, Pittsburgh, PA 15236-0940

66 -- RESIDUAL GAS ANALYZER SOL S9900830 DUE 061899 POC Cynthia Y. Mitchell, (412) 892-4862 E-MAIL: mitchell@FETC.doe.gov, mitchell@FETC.doe.gov. This is a combined synopsis/solicitation for a commercial item prepared in accordance with the format in FAR Subpart 13.5, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; proposals are being requested and a written solicitation will not be issued. This solicitation number S9900830 is issued as a Request for Quote (RFQ). Propsals are due June 18, 1999. This requiremnt is being issued as Request for Quotation using Simplified Acquisition Procedures. The following item is to be purchased by the U.S. Department of Energy's Federal Energy Technology Center (FETC), Pittsburgh, PA and is to be shipped to the Pittsburgh site. Item being purchased is as follows: COMPETITIVE PROCUREMENT ACTION FOR A PARTIAL PRESSURE ANALYZER A new partial pressure analyzer (also referred to as a residual gas analyzer or RGA) is required for the on-line monitoring of gasses in an experimental program. It is envisioned that the instrument will be set-up withstandard operating parameters by a chemist or engineer but that the day-to-day operation will be performed by a technician. The requirement is for a system including: 1. a quadrupole mass spectrometer, 2. the vacuum system necessary for successful operation of the spectrometer, 3. an interface for non-discriminatory sampling of gasses, 4. IBM PC compatible software for data acquisition and instrument control, 5. all necessary interfacing hardware including, but not limited to, cables, transfer lines, and required PC boards. The IBM compatible PC is not to be supplied. The vendor may assume that a Pentium-class machine will be used. Specifics on some of the sub-systems are given below. PROCESS CONDITIONS: The process gas will range from near atmospheric pressure to about 2000 psig and a temperature between 0oC and 55oC. Let down to near atmospheric pressure is not the responsibility of the vendor but tolerance to higher inlet pressures is favored. QUADRUPOLE MASS SPECTROMETER Detector: Dual Faraday cup + electron multiplier. Mass Range: 1-300 amu. Ion Source: Closed ion source. Ionization Energy: Variable from a lower limit of at most 30 to an upper limit of at least 100 volts. Filament: Dual filament with degassing capability. Detection Limit: < 5 x 10-14 torr (electron multiplier) Resolution: Mass resolution <0.5 amu at 10% valley is required across the entire range (as per AVS Standard 2.3). Stability: + 0.1 amu on the mass axis and + 2% on the partial pressure axis over 8 hours. The warm up time necessary to achieve stable operation must not exceed 1/2 hour. Sensitivity: Faraday cup: 2 x 10-4 amp/torr (nitrogen) Speed: Scan mode: from 1 to 300 amu at least twice a minute at above resolution. Ion monitoring (also known as SIM and Trend): One set of 8 ions once every 0.1 sec. Construction: Parts in direct contact with the gas must be compatible with the following: nitrogen, carbon dioxide, carbon monoxide, hydrogen, oxygen, hydrocarbons, water vapor, hydrogen sulfide, sulfur oxides, nitrogen oxides, mercury and mercuric chloride. Maintenance: Routine maintenance such as filament replacement and source cleaning must be accomplishable on-site by in-house personnel. Construction should allow for ease of maintenance. Normal down time for routine periodic maintenance should not exceed 4 hours per incidence. VACUUM SYSTEM The vacuum system must be capable of establishing and maintaining the system pressure necessary for MS measurements outlined above. An oil-free diaphragm pump is desired to limit contamination. The vacuum system must be compatible with a coal research environment. The vacuum system must be able to achieve operating pressure within 30 minutes from initial conditions of non-energized, ambient lab temperature, and ambient atmospheric pressure. Pumps should have over-temperature protection. DATA ACQUISITION AND CONTROL SOFTWARE Control: The system must be controllable from a PC using software that is fully compatible with the Windows multi-tasking environment. Provision must be made for the storage and recall of control parameter and data files. To facilitate operation, a user defined automatic start-up operation, such as but not limited to that which can be achieved with macro programs, must be available. All normal adjustments needed to tune and operate the instrument such as, but not limited to, lens voltages and emission current, must be controlled from the PC. Display: The following real-time features are required. 1. A display of mass (x-axis) vs partial pressure (y-axis) readings, updated at least every 30 seconds, which provides a visual indication of the resolution between adjacent peaks: that is, an analog or analog-like display. 2. A display of time (x-axis) vs partial pressure (y-axis) for a minimum of sixteen different ions. 3. A means of viewing the two displays simultaneously or sequentially without loosing the time-pressure data. That is, the ability to obtain a mass scan while monitoring pressure-time trends. A split display showing both plots simultaneously is also acceptable. 4. A leak check mode is also required. Calibration: It must be possible to calibrate the mass axis and the partial pressure axis of the instrument. In particular, it is desired to calibrate the pressure axis using certified gas mixtures and/or literature response factors and to display accurate concentration data. Disc Storage: It must be possible to store the data from an entire run (as defined below) to disc. The data must be retrievable and displayable in the same format as outlined above for real-time features using vendor supplied routines. Data files must be either directly importable into Excel, or easily converted via a vendor supplied program into an importable file. PC Interface: An RS-232 port must be available to provide for control via a lap-top PC. PROCESS INTERFACE The system must be able to operate within the given specifications with an interface (envisioned as a capillary tube) of up to 3 meters in length. The interface must provide a representative sample of the gas stream being monitored. The interface must be of low volume. If heaters or other auxiliary equipment are needed to ensure non-discrimination during sampling, they should be included. SYSTEM REQUIREMENTS Fail Safe: The spectrometer must be able to tolerate unanticipated power outages without damage. Also, the system is to provide a mechanism (may be part of the software) for protecting against QMS damage (such as filament burn out or destructive detector overload) in an over pressure situation. Further, provisions must be available for limiting the loss of data such as by the generation of back-up or multiple files. In the later case, file size is to be determined by the user. Documentation: All information necessary for the installation, operation, and maintenance of all of the major hardware and software components of the system must be provided. Documentation must be provided in hard-copy form with a Table of Contents and an Index. On-line "Help" is not an acceptable substitute. The information must be of sufficient depth that thesystem can be made operational in the described application. Run Time: The system must be capable of continuous, unattended operation for a minimum of 16 hours (overnight). Dimensions: The system, excluding PC, must fit into a confined area. It should not exceed 32" in width, 29" in depth, and 78" in height. Portability: The system, excluding PC, must be sufficiently portable that it can be moved from one location to another by one person. No single component should exceed 40 lbs. Power: The system, excluding PC, should not require greater than 15 amp service at 110 VAC. Service: Timely service and support must be available. Posted 06/02/99 (W-SN338171). (0153)

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