Fluke 742A-1 Скачать руководство пользователя | Manualshive

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Содержание 742A-1

Страница 1: ...P N 850255 September 1988 1988 John Fluke Mfg Co Inc all rights reserved Litho in U SA ...

Страница 2: ...transportation prepaid and a description of the malfunction to the nearest Fluke Service Center The instrument shall be repaired at the Service Center or at the factory at Fluke s option and returned to purchaser transportation prepaid FLUKE ASSUMES NO RISK FOR IN TRANSIT DAMAGE THE FOREGOING WARRANTY IS PURCHASER S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIE...

Страница 3: ...environment within the range of 18 to 28 C The standards come with six month and one year uncertainty specifications Depending on the accuracy required a 742A can be recertified at intervals based on either specification Each 742A comes with a Report of Calibration and a rear panel label showing the mea sured value The rear panel also has a Fluke Primary Standards Lab calibration label labels that...

Страница 4: ...racy The initial resistance is trimmed to 2 ppm of nominal The measured value is printed on the rear panel Operating Temperature Range 23 5 C Storage Temperature Range 0 to 40 C Report of Calibration The report of calibration includes a table of resistance values in 0 5 increments from 18 to 28 C Size 8 64 cm H x 10 54 cm W x 12 70 cm L including binding posts 3 4 in H x 4 15 in W x 5 0 in L inclu...

Страница 5: ...ermal emf material FEATURES Figure 1 shows a front panel view Figure 2 shows a rear panel view Table 2 describes binding post functions Table 3 describes the rear panel labels Figure 1 Typical Front Panel View Table 2 Functions of the Binding Posts 742A BINDING POST FUNCTION CURRENT HI Input for the current source from an ohmmeter CURRENT LO Input for the current source from an ohmmeter SENSE HI M...

Страница 6: ...l Shows alpha and beta centered on 23 C Refer to How Temperature Correction Factors are Calculated further on in this manual for definitions of alpha and beta and the formula to predict exact resistance at different temperatures Fluke Primary Standards Lab Calibration Label documents traceability to the U S National Bureau of Standards Serial number label Shows the standard s serial number This nu...

Страница 7: ...Use these binding posts as described in Table 2 For the case to act as a shield the CHASSIS GROUND binding post must be connected to earth ground or instrument guard at some point in a calibration system Normally when two or more instruments with guards are connected together the use of a single common grounding point avoids ground loops If applicable ground the 742A CHAS SIS GROUND binding post t...

Страница 8: ...f alpha and beta are individual ized for each 742A Alpha and beta are established by measurement in the Fluke Primary Standards Lab at 18 C 23 C and 28 C The temperature characterization table is generated from these three measurements and the following formula R R23 1 a t 23 P t 23 2J Where Rt Resistance at t C R23 Resistance at 23 C a Slope of the curve ppm C at 23 C p Rate of change of slope of...

Страница 9: ...0000007 0 7 19 0 1 0000008 0 8 19 5 1 0000009 0 9 20 0 1 0000010 1 0 20 5 1 0000010 1 0 21 0 1 0000010 1 0 21 5 1 0000011 1 1 22 0 1 0000011 1 1 22 5 1 0000010 1 0 23 0 1 0000010 1 0 23 5 1 0000009 0 9 24 0 1 0000009 0 9 24 5 1 0000008 0 8 25 0 1 0000007 0 7 25 5 1 0000006 0 6 26 0 1 0000004 0 4 26 5 1 0000003 0 3 27 0 1 0000001 0 1 27 5 0 9999999 0 1 28 0 0 9999997 0 3 ...

Страница 10: ...0000010 1 0000003 0 0000003 1 0000010 1 0000000 i oooooi on R R23 1 a t 23 p t 23 2 At 26 C R26 1 0000010 1 0 09 E 6 3 0 034 E 6 3 2 1 000001 0 1 0 0000003 0 0000003 1 0000010 1 0 0000006 1 0000004Q Storage Temperature Range To maintain accuracy within the specified limits do not subject the 742A Series to temperatures below 0 C or above 40 C If exposure to temperatures outside this range is unavo...

Страница 11: ...ou transport the standard it is recommended that you use the Option 742A 7002 Transit Case for shock and temperature protection The case holds two 742A Series Resistance Standards SERVICING INFORMATION Because the 742A Series are certified and non adjustable resistance standards they are considered non user repairable If the unit is damaged it must be returned to the factory for repair and recalib...

Страница 12: ......

Страница 13: ...hnology Center 900 Middlesex Turnpike Building 8 Billerica MA 01821 617 663 2400 Michigan Detroit 33031 Schoolcraft Livonia Ml 481 50 313 522 9140 IVtirsnesota Bloomington 1801 E 79th St Suite 9 Bloomington MN 55420 612 854 5526 Missouri St Louis 11756 Borman Drive Suite 160 St Louis MO 63146 314 993 3805 North Carolina Greensboro 1310 Beaman Place Greensboro NC 27408 919 273 1918 New Jersey Param...

Страница 14: ...1 1171413 Philips do Brasil Ltda For Philips products Av Eng Luiz Carlos Berrini 3009 Caixa Postal 8681 04571 SAO PAULO S P Tel 55 11 2411611 TLX 011 32750 Brunet Rank O Connor s Sdn Bhd For Fluke products No 8 Block D Sufr i Shophouse Complex Mile 1 Jalan Tutong Bandar Seri Begawan Negara Brunei Darussalam Tel 673 2 23109 or 23557 TLX 799 BU2265 RANKOC Canada Fluke Electronics Canada Inc 400 Brit...

Страница 15: ...Fluke products 5th Floor Castle House 5 1 A Hungerford St Calcutta 700 017 India Tel 91 33 432628 TLX 953 21 4153 Hinditron Services Pvt Ltd For Fluke products 204 5 6 Hemkunt Tower 98 Nehru Place New Delhi 1 10019 India Tel 91 11 6410380 TLX 953 316458 Hinditron Services Pvt Ltd For Fluke products Emerald Complex 1 7 264 5th Floor 1 14 Sarojini Devi Rd Secunderabad 500 003 India Tel 842 821 1 1 7...

Страница 16: ...719 FAX 47 2 381457 Norsk Al S Philips For Philips products Dept E Test Measurement Sandstuveien 70 P O Box Mangierud Oslo 6 Tel 2 680200 Oman OHI Telecommunications For Fluke products P O Box 889 Muscat Oman Tel 968 603606 TLX 926 5052 Pakistan international Operations PAK Private Ltd For Fiuke products 505 Mubammadi House I I Chundfigar Road P O Box 5323 Karachi Pakistan Tel 21 221127 TLX 952 24...

Страница 17: ...urkey Tel 90 1 1441546 TLX 821 24399 FAX 90 1 1497037 Turk Philips Ticaret A S For Philips products Inonu Caddesi 78 80 P K 504 80074 Beyoglu lstanbul Tel 90 1 1435910 TLX 24192 PHTRTR United Arab Emirates Haris Al Afag Ltd For Fluke products P O Box 8141 Kamal Hamza Bldg Traffic Police Rd Dubai U A E Tel 971 4 283625 TLX 958 48168 Philips Middle East For Philips products Oubai Intern Trade Centre...

Страница 18: ...s Brussels Belgium Tel 2 525 6111 Brazil Hi Tek Electronic a Ltd a For Fluke products Al Amazonas 422 Alphaville Baruen CEP 06400 Sao Paulo Brazil Tel 421 5477 industlas Brasileiras Philips Ltd For Philips products Av Eng Luiz Carlos Berrml 3009 7 and CEP 04571 Sao Paulo S P Tel 241 1611 Canada Fluke Electronics Canada Inc 400 Brittanla Ra Unit 1 Mississauga Ontario L4Z 1V9 Tel 416 890 7600 Fluke ...

Страница 19: ...200 Sweden Svenska A B Philips Div Industrieiektroik Avd Matinstrumen 1 1 584 Stockholm Tel 782 1600 Switzerland Traco Electronic AG For Philips products Jenatschstrasse 1 8002 Zurich Switzerland Tel 2010711 Philips AG For Philips products S I Equipment Allmendstasse 140 Postfach 670 CH 8027 Zurich Switzerland Tel 488221 Syria Philips Moyen Orient S A For Philips products Rue Fardoss 79 B P 2442 D...

Страница 20: ...Tel 693355 Israel R D T Electronics Engineering Ltd P O Box 43137 Tel Aviv 61430 Israel Tel 483211 Italy Sistrel S p A For Fluke products Via Pelizza da Volpedo 59 20092 Cinisello Balsamo Milan Italy Tel 6181893 Philips S p A For Philips products Sezione S I T M Dept Viaie Elvezia 2 20052 Monza Tei 039 3635 1 Japan John Fluke Mfg Co Inc Japan Branch For Fluke products Sumitomo Higashi Shinbashi Bl...

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