Biddle BM121_BM122_UG 电路图.pdf
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1、SAFETY WARNINGS Safety Warnings and Precautions must be read and understood before the instrument is used. They must be observed during use. The circuit under test must be switched off, de- energised and isolated before Insulation or Continuity tests are made. The test push button must not be held d
2、own while connecting the test leads. During an insulation test, the circuit must not be touched. After insulation tests, capacitive circuits must be allowed to discharge before disconnecting the test leads. Test leads, prod and crocodile clip must be in good order; clean, and with no broken or crack
3、ed insulation. Replacement fuses must be of the correct size, type and rating. M BM121 and BM122 Insulation the display changes to the M r a n g e and shows the insulation value. As an additional safety feature the BM122 display flashes its 1 0 0 0 V symbol before performing the test. 4 .Release the
4、 test button beforeremoving the test leads (to enable the instrument to discharge the circuit under test). SPECIFICATION I N S U L ATION B M 1 2 1B M 1 2 2 Nominal Test Vo l t a g e :500V dc1000V dc Test Voltage Accuracy:-0% +30% (0C to 30C) into 0 to 1mAload Measuring Range:0,01M - 999M Short Cct.
5、Current:Less than 2mA Accuracy (at 20C): 3% 2 digits up to 10M 5% 2 digits up to 100M 30% up to 999M CONTINUITY Measuring Range:0,01 - 99,9 Open Cct. Voltage:5V 1V Low Battery 1000V Fuse Ruptured Refer to Safety Warnings before using the instrument RadioFans.CN 收音机爱 好者资料库 Accuracy (at 20C):0,01 - 9,
6、99 3% 2 digits(ISC=210mA) 10 - 99,9 5% 2 digits (ISC=21mA) Temperature Coefficient:25V (ac or dc) is detected, normal testing is inhibited and the display flashes a V warning. Caution: This warning does not function if the instrument is Off or if the battery is exhausted. Automatic Discharge: Capaci
7、tive circuits will be automatically discharged when the test button is released following an insulation test (Internal 360 k resistance). Power Supply:6 x 1,5V cells IECLR6 (AA) type only. Battery life:Typically 2000, 5 second operations (worst case). N o t e :Battery cells should not be left in an
8、instrument which may remain unused for extended periods of time. Low Battery:The low battery indicator symbol will appear when the battery cells are exhausted. Battery Replacement: The rear cover must not be opened if the test leads are connected. To remove the rear cover, release the screw at the b
9、ottom of the cover and lift the cover upwards. To avoid the possibility of shock, do not press the test button or touch the fuse when changing battery cells. Fuse:500 mA(F) H.B.C.10 kAmin (32mm x 6mm). To check this fuse, open circuit the test leads and press the test button until a reading is obtai
10、ned. Display of the fuse symbol , or an error code indicates a ruptured fuse. Located under the rear cover, this fuse can be replaced by the user. The rear cover must not be opened if the test leads are connected. The replacement fuse must be of the correct type and rating. To avoid the possibility
11、of shock, disconnect the battery before touching the fuse. Terminal CharacteristicsLimiting Value Curve RadioFans.CN 收音机爱 好者资料库 E.M.C. In accordance with IEC61326 including Amendment No.1 Safety:The instruments meet the safety requirements for double insulation to IEC 1010-1(1995) EN61010(1995) to i
12、nstallation Category III*, 300 V phase to earth (ground) and 440 V phase to phase, without the need for separately fused test leads. If required, fused test leads are available as an optional accessory. *Relates to transient overvoltage likely to be found in fixed installation wiring. Weight:530g (i
13、ncluding battery cells) Dimensions:195 mm x 98 mm x 40 mm Cleaning:Wipe with a clean cloth dampened with soapy water or Isopropyl Alcohol (IPA). ACCESSORIESPART No. Supplied:- User Guide6172-069 - Synthetic zip-up pouch6420-132 - Test leads, red fails to perform the intended measurements; has been s
14、ubjected to prolonged storage under unfavourable conditions, or has been subjected to severe transport stresses. NEW INSTRUMENTS ARE GUARANTEED FOR 3 YEARS FROM THE DATE OF PURCHASE BYTHE USER. N o t e :Any unauthorized repair or adjustment will automatically invalidate the Wa r r a n t y Instrument
15、 Repair and Spare Parts For service requirements for M Instruments contact :- Megger Limited o rMegger Inc. A r c h c l i ffe Road Valley Forge Corporate Center Dover 2621 Van Buren Av e n u e Kent, CT17 9ENNorristown, PA 1 9 4 0 3 E n g l a n dU . S . A . Tel: +44 (0) 1304 502243Tel: +1 (610) 676-8
16、579 Fax: +44 (0) 1304 207342 Fax: +1 (610) 676-8625 or an approved repair company. Guide de lutilisateur CONSIGNES DE SECURITE Vous Devez couper le circuit lessai, le dsexciter et lisoler Avant de procder aux essais disolation ou de continuit. Vous Ne Devez Pas maintenir la pression sur le bouton-po
17、ussoir dessai pendant le branchement des conducteurs dessai. Lors dun essai disolement, vous Ne Devez Pas toucher au circuit. Aprs des essais disolement, vous Devez attendre que les circuits capacitifs se dchargent Avant de dbrancher les conducteurs dessai. Les conducteurs dessai, le palpeur et la p
18、ince crocodile Doivent Etre en parfait tat de marche et propres et leur isolement ne doit pas tre fissur ou cass. Utilisez des fusibles de rechange de taille, type et puissance nominale corrects. Vous devez soigneusement lire les consignes de securite et precautions, bien les compendre avant de vous
19、 servir de cet instrument et les respecter pendant lemploi de cet instrument. FONCTIONNEMENT Une brve pression sur le bouton de commande de cet instrument le met en circuit et slectionne le mode Continuit. Lessai de continuit se dclenche automatiquement ds que les conducteurs dessai sont en contact.
20、 Une pression sur ce bouton et le maintien de cette pression permettent de slectionner le mode disolement. Vrification prliminaire des conducteurs dessai 1.Avant chaque utilisation de cet instrument, procdez des examens visuels des conducteurs dessai pour confirmer quils sont en bon tat et que leur
21、isolement nest pas endommag ou cass. 2.Vrifiez la continuit des conducteurs dessai en les mettant en court- circuit, cest-dire en les mettant fermementen contact, et en regardant ce qui se passe sur lcran daffichage. Essais de continuit 1 .Mettez cet instrument en circuit en appuyant brivement sur l
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