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Summary of Contents for Time Electronics 9780
- Page 1 User Manual 9780 Clamp Meter Adaptor Version 1.2 December 2020 Time Electronics Ltd Unit 5, TON Business Park, 2-8 Morley Road, Tonbridge, Kent, TN9 1RA, United Kingdom. T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198 mail@timeelectronics.co.uk | www.timeelectronics.com...
- Page 2 All rights reserved. Nothing from this manual may be multiplied, or made public in any form or manner, either electronically or hard copy, without prior written consent from Time Electronics Ltd. This also applies to any schematics, drawings and diagrams contained herein.
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Page 3: Table Of Contents
Time Electronics User Manual 9780 Clamp Meter Adaptor v1.2 Contents Introduction ............................ 4 Operation ............................5 Important Warnings ..........................5 Principle of Operation ..........................6 x1 and x50 Coils ............................ 6 Leads and Connections ......................... 6 Duty Cycle and Heating ......................... 6 Current Source ............................ -
Page 4: Introduction
9780 Clamp Meter Adaptor v1.2 Introduction The 9780 is an adaptor designed for use with Time Electronics multifunction calibrators, or calibrated AC or DC sources. It enables accurate calibration and verification of a wide range of clamp-type meters. The unit is features twin coils built into a high insulation base plate, with a foam mat for positioning the clamp meter being calibrated. -
Page 5: Operation
Operation Important Warnings Duty Cycle: The 9780 is rated for continuous operation at 10 A. At 22 A the duty cycle should be a maximum of 3 minutes on and 6 minutes off. Do not exceed this. Caution Hot Surface: The surface of the coils can become hot. -
Page 6: Principle Of Operation
Coils The 9780 is fitted with 2 main coils. A single turn coil (x1) and a 50 turn coil (x50). The x50 turn coil can effectively multiply the current by a factor of 50, allowing current clamps to be calibrated up to 1100 A. -
Page 7: Test Setup
9780 Clamp Meter Adaptor v1.2 Test Setup Three terminals are available on the side of the 9780. To use the x1 turn coil connect the test leads supplied from the calibrator to the x1 red terminal and the black common terminal. -
Page 8: Example Connections
Time Electronics User Manual 9780 Clamp Meter Adaptor v1.2 Example Connections 2.9.1 Example Model 5025 connection: 2.9.2 Example CalBench Module 7051+ connection: 9780 Clamp Meter Adaptor Page 8 of 12... -
Page 9: 2.10 Positioning The Clamp Meter
2.10 Positioning the Clamp Meter Place the clamp meter on the 9780 bed, with the jaws clamped around the coil. Make sure the coil is aligned centrally with the markers on the jaws. Follow the instructions in the calibrator manual to output the specific current that will be multiplied by the adaptor. -
Page 10: Specifications
50 turn coil = 0.11 Ω. Inductance = 1 mH. Operation ratings and Duty Cycle: The 9780 is rated for continuous operation at 10 A. At 22 A the duty cycle should be a maximum of 3 minutes on and 6 minutes off. -
Page 11: Warranty And Servicing
Time Electronics’ total liability is limited to repair or replacement of the product. Note that if Time Electronics determine that the fault on a returned product has been caused by the user, we will contact the customer before proceeding with any repair. - Page 12 Returning Instruments Prior to returning your product please contact Time Electronics. We will issue a return merchandise authorization (RMA) number that is to accompany the goods returning. Further instructions will also be issued prior to shipment. When returning instruments, please ensure that they have been adequately packed, preferably in the original packing supplied.
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