1、 INCH-POUND A-A-59322B October 14, 2009 Superseding A-A-59322A April 27, 2006 COMMERCIAL ITEM DESCRIPTION OHMMETER The general Services Administration has authorized the use of this Commercial Item description, for all federal agencies. 1 SCOPE. This Commercial Item Description (CID) describes an Oh
2、mmeter herein referred to as equipment. This CID is meant as a minimum requirement in which only those manufactures meeting or surpassing the following requirements are to be supplied per this CID. 2 SALIENT CHARACTERISTICS. The equipment shall be capable of operation within the accuracies, limits,
3、and specifications herein. Equipment covered by this CID may be commercially available equipment modified to the extent necessary to meet the following description. The equipment assembly shall be Class 1 as described in the classification and class paragraphs of the latest version of MIL-PRF-28800
4、except as specified herein. 2.1 Size. The equipment dimensions shall permit efficient portable usage. The equipments weight, including any and all accessories (excluding written manuals) shall not exceed 20 pounds. 2.2 Safety and Environmental. The equipment shall meet all safety and environmental r
5、equirements as specified in MIL-PRF-28800 for the classification as stated herein. 2.2.1 Water Resistance. The equipment shall not be required to be watertight and splash proof. Drip proof requirements shall conform to MIL-PRF-28800, Class 2 while not operating and covers are closed. 2.2.2 Explosive
6、 Atmosphere. The equipment shall meet the explosive atmosphere requirements of MIL-PRF-28800 or the requirements of MIL-STD-810, METHOD 511. FSC 6625 Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any other data that may improve this document should be sent to W
7、R-ALC/742 CBSG/GBEC, 450 3rd St. Bldg 323, Robins AFB, GA 31098-1611. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil . Provided by IHSNot for ResaleNo reproduction or networking permi
8、tted without license from IHS-,-,-A-A-59322B 2.2.3 Dust Resistance. Dust resistance testing shall not be required. 2.2.4 Salt Exposure. Salt exposure verification testing shall not be required. 2.2.5 Temperature Operating. The equipment shall meet its performance and accuracy requirements in an oper
9、ating environment of at least 0 C to +40 C. 2.2.6 Transit Drop. The transit drop requirements shall conform to MIL-PRF-28800, Class 2 2.2.7 Random Vibration. The random vibration requirements shall conform to MIL-PRF-28800, Class 2. 2.3 Reliability. Unless otherwise specified, the design of the equi
10、pment shall be such that under normal use and operation the equipment does not fail within 2000 hours of operation with a statistical certainty of 95%. 2.4 Calibration and Maintenance Adjustments. The design of the system shall provide for readily accessible calibration and maintenance adjustments.
11、These adjustments shall be provided by variable value components, which are adjustable, by the use of simple means. The calibration by substitution of selected components or parts is unacceptable unless specifically approved. The calibration adjustments, wherever possible, shall be accessible withou
12、t removal of the instrument case or modules. The calibration interval shall be a period of one year or greater, based on an operating time of 2000 hours per year. 2.5 Electrical Power Sources and Connections. The equipment shall operate from an internal power source. Batteries shall be provided with
13、 the equipment. Batteries shall be easily accessible for maintenance and weatherproof from the environment. The equipment shall operate in accordance with the steady state conditions, transient state conditions, and interruption of power source requirements outlined the latest version of MIL-PRF-288
14、00. 2.6 Internal DC Power. DC power shall be supplied by internal batteries. The equipment shall be capable of operating away from AC power source. The batteries shall have the capability of operating the unit with full performance for a period of not less than eight hours. 2.7 Accessories. Accessor
15、ies to be supplied by the manufacturer and listed in the manufacturers catalog or data sheet, a written tutorial/user reference manual, a traceable calibration certificate, and a complete set of test leads with provisions for storage. 2.8 Warm-up Performance. The warm-up requirement shall be met whe
16、n the equipment has been subjected to a 2-hour not operating temperature stabilization period. The equipment shall perform to specifications after a warm-up period not to exceed thirty minutes after initiating power and all calibration and self-check routines have been accomplished. 2 Provided by IH
17、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59322B 2.9 Performance Characteristics. 2.9.1 Ranges. The equipment shall have the capability to perform measurements with a minimum of 4 ranges from 0 to 2000 milliohms with sufficient range selection to meet th
18、e resolution and accuracy stated herein. 2.9.2 Accuracy. The accuracy of the equipment shall be at least 1% of the reading on the selected range. 2.9.3 Maximum Test Current. The maximum test current of the equipment shall not be greater than 1.5 Amperes. 2.9.4 Maximum Test Voltage. The maximum test
19、voltage of the equipment shall not be greater than 1 volt. 2.9.5 Measurement Method. The equipment shall have a four terminal measurement method to assure measurement accuracy. 2.9.6 Display. The equipment shall have a 3.5-digit display with the resolution for the required accuracy stated herein. Th
20、e display shall also provide a means for illumination for use in low light conditions. 2.9.7 Resolution. The equipment shall have a minimum of 3.5-digits of resolution. 2.9.8 Probe. This equipment shall have connection for hand Grip probes. 3 REGULATORY REQUIREMENTS. 3.1 The offeror/contractor is en
21、couraged to use recovered materials to the maximum extent practicable, in accordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR). 3.2 Green Procurement Program. Green Procurement Program (GPP) is a mandatory federal acquisition program that focuses on the purchase and use of en
22、vironmentally preferable products and services. GPP requirements apply to all acquisitions using appropriated funds, including services and new requirements. FAR 23.404(b) applies and states the GPP requires 100% of EPA designated product purchase that are included in the Comprehensive Procurement G
23、uidelines list that contains recovered materials, unless the item cannot be acquired: a) competitively within a reasonable timeframe; b) meet appropriate performance standards, or c) subcontractors comply with this requirement. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted w
24、ithout license from IHS-,-,-A-A-59322B 4 PRODUCT CONFORMANCE PROVISIONS. 4.1 Product Conformance. The products provided shall meet the salient characteristics of this CID, conform to the producers own drawings, specifications, standards and quality assurance practices, and be the same product offere
25、d for sale in the commercial market. The government reserves the right to require proof of such conformance. 4.2 Metric Products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pound units, provided they fall within the specified to
26、lerances using conversion tables contained in the latest revision of Federal Standard No. 376, and all other requirements of this CID are met. If a product manufactured to metric dimensions exceeds the tolerances specified in the inch/pound units, a request should be made to the contracting officer
27、to determine if the product is acceptable. The contracting officer has the option of accepting or rejecting the product. 5. PACKAGING. Preservation, packing, and marking shall be as specified in the contract or order. 6 NOTES. 6.1 Sources of documents. 6.1.1 Military Specifications, Standards, and H
28、andbooks referenced herein may be obtained at http:/assist.daps.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094. 6.1.2 The Code of Federal Regulations (CFR) may be obtained at http:/www.gpoaccess.gov/cfr/index.html or available fr
29、om the Superintendent of Documents, U.S. Government Printing Office, Washington, DC, 20402. 6.1.3 FAR and DFARS may be obtained from the Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954. Electronic copies of the FAR may be obtained from http:/www.arnet.gov/far/. Electronic cop
30、ies of the DFARS may be obtained from http:/www.acq.osd.mil/dp/dars/dfars.html . 6.2 Key Words. Internal power source Portable Range selection 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59322B MILITARY INTEREST Custodian: Preparing activity
31、: Air Force - 84 Air Force - 84 Reviewer: Agent: Air Force - 99 Air Force 99 Project 6625-2010-002 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at http:/assist.daps.dla.mil . 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
