AIR FORCE A-A-50692-1990 OSCILLOGRAPH PORTABLE《便携式示波器》.pdf

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1、A-A- SO692 11 October 1990 COMMERCIAL ITEM DESCRIPTION OSCILLOGRAPH, PORTABLE The General Services Administration has authorized the use of this Commercial Item Description. Abstract. This Commercial Item Description (CID), decribes a Oscillograph Recorder. This CID is meant as a minimum requirement

2、 for the Oscillograph Recorder in which only those manufacturers that meet or surpass the following requirements are qualified per this CID. Salient characteristics. bid sample tested within the accuracies, limits, and specifications herein. The equipment shall be capable of operation and be 1. Clas

3、sfication. Equipment covered by this CID shall be commercially available equipment modified to the extent necessary to meet the following description. The equipment shall be type III, class 5, style E and color R in accordance with MIL-T-28800. 2. Order of precedence. In the event of a conflict betw

4、een the text of this CID and the references cited herein (except for associated detail specifica- tions, specification sheets or MS standards) the text of this CID shall take precedence. Nothing in this CID, however, shall supersede applicable laws and regulations unless a specific exemption has bee

5、n obtained. a 3. Safety and environmental. The equipment shall meet all safety and environ- mental requirements as specified in MIL-T-28800 for the classification as stated herein. 4. Electrical power sources. The equipment shall operate from nominal commer- cial, military, and shipboard power sourc

6、es of 100, 120, 220, 240 volts ac (+lo%) at line frequencies of 50 Hz to 60 Hz. Power consumption shall not exceed the classification specified herein. . is0 watts. Transient st-a.t_e conditions shall meet MIL-T-28800 requirements- for 5. TemDerature reauirements. a. Non-operating temperature. The e

7、quipment shall meet its perf ormance and accuracy requirements in an non-operating environment of -1OOC to +5OoC. b. Operating temperature. The equipment shall meet its performance and accuracy requirements in an operating environmental of OC to 4OOC. Beneficial comments, recommendations, additions,

8、 deletions, clarifications, etc. and any data which may improve this document should be sent to: Support Division, SA-ALC/MMDEM, Kelly AFB TX 78241-5000. AMSC NIA FSC 6625 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. a Provided by IHSNot for ResaleNo reproduction

9、 or networking permitted without license from IHS-,-,- A-A-50b92 bb 7799774 0057462 9 9 A-A- 50692 6. Mean Time Between Faflures (MTBF). The equipment Mean Time Between Failures (MTBF) shall be 2,000 hours. The lower test MTBF shall be 2,000 hours and the upper test MTBF shall be 4,000 hours. 7. Pre

10、-conditioning requirement. Each deliverable equipment shall be capable of being subjected to the environmental screening effects of burn in and thermal cycling, with thermal cycling being accomplished in the sample testing phase. 8. Calibration and maintenance adjustments. The design of the system s

11、hall provide for readily accessible calibration adjustments and maintenance adjust- ments. 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 specific

12、ally approved. The calibration adjustments, wherever possible, shall be accessible without 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. 9. Performance characteristics. Number of Channel

13、s Channel Width Writing Method Inputs Input Impedance Input Over Voltage Protection Frequency Response (+5%, -10%) 40mm pk-pk 2Omm pk-pk 1Omm pk-pk Chart Speeds Full Scale Input Ranges Approximate Dimensions Paper Take Up Spool Approximate Weight 2 40 or 50mm Thermal or Ink Differential and balanced

14、 to ground SlMohm for both differetial and balanced to ground - Capable of withstanding + 100 V on the mV range + 500 V on V range - dc to at- least 35 Hz dc to at least 50 Hz dc to at least 70 Hz Shall cover the range of iOOmm/sec to iOmm/min Shall cover the range of 50mV to 200 V 8.0in. x 8.0in x

15、17in. or smaller. Stores written paper internally. Provides environmental protection for written paper. 281bs. or less. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A- 50692 or order. Notes. , Contractor certification. The contractor shall cer

16、tify and maintain substan- tiating evidence that the product offered meets the salient characteristics of this Commercial Item Description, and that the product conforms to the produ- cers own drawings, specifications, standards and quality assurance practices. The Government reserves the.right to r

17、equire proof of such conformance prior to first delivery and thereafter as may be otherwise provided for under the provi- sions of the contract. Metric products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pound units, provided t

18、hey fall within specified tolerances using conversion tables contained in the latest revision of Federal Standard No 376, and all other requirements of this Commercial Item Description are met. If a product is manufactured to metric dimensions and those dimensions exceed the tolerances specified in

19、the inch/pound units, a request should be made to the contracting officer to determine if the product is acceptable. O The contracting officer has the option of accepting or rejecting the pro- duct * Regulatory requirements. Acquisition Regulations, the Governments policy is to acquire items compose

20、d of the highest percentage of recovered materials practicable, consistent with main- taining a satisfactory level of competition without adversely affecting perfor- mance requirements or exposing the suppliers employees to undue hazards from the recovered materials. In accordance with section 23.40

21、3 of the Federal MIL-T-28800 is available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094. t 1 Review activity: Air Force - 99 3 Preparing activity: Air Force - 82 (Project 6625-F985) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-