FLUKE 54407002iseng0200 电路图.pdf

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1、 PN 788307 December 1985 Rev. 2, 12/91 1991, John Fluke Mfg. Co., Inc. Ail rights reserved. Litho in U.S.A. Specification Sheet Model 5440A-7002 Low Thermal Test Lead Set INTRODUCTION This specification sheet lists the electrical and mechanical specifications of the 5440A-7002 Low Thermal Test Lead

2、Set. The set includes two 5440A-7004 test leads and one 5440A-7005 test lead. The Low Thermal Test Leads are accessories for the 5440 Series calibrators. These test leads have lower thermal emf than standard test leads, minimizing the emf caused by the temperature difference between the ends of the

3、leads. MECHANICAL SPECIFICATIONS Length .5440A-7004: 24 in 1 in 5440A-7005: 48 in 1 in Connector Size .4 mm diameter Connector Style .Safety type, with a retractable spring-loaded hood. The connector engages with a wiping action. Connector Materials MAIN BODY.Nylon RETRACTABLE HOOD .Nylon STRAIN REL

4、IEVER .ABS (for high leakage resistance between the center conductor and the connector shield) CENTER CONDUCTOR.Tellurium copper SPRING TIP.Beryllium copper GUARD CONNECTOR .Nylon; stackable banana plug construction RadioFans.CN 收音机爱 好者资料库 ELECTRICAL SPECIFICATIONS Thermal EMF .Less than 1.3 V per C

5、 when measured while engaged in a five-way binding post of Tellurium Copper Alloy 145, half hard (John Fluke PN 637892 or equivalent) Leakage Resistance Between Center Conductor and Shield .Greater than 1.0 x 1013 ohms at 45C and 75% R.H. Cable Type .RG-58/U type with AWG 20 stranded and tinned cent

6、er conductor (19 x .0071 in) (Belden 8262 or equivalent) Safety Rating. Designed to meet UL 1244 to 1100V ac For application or operation assistance or information on Fluke products, call: 800-433-5833 in U.S.A and Canada 206-356-5500 from other countries John Fluke Mfg. Co., Inc Phillips International B.V. P.O. Box 9090 T & M Dept., Building TQ111-4 Everett, WA 98206-9090 5600 MD Eindhoven, The Netherlands RadioFans.CN 收音机爱 好者资料库