1-1
Chapter 1
Introduction and Specifications
Introduction
P
Warning
Service procedures described herein should be performed by
qualified personnel only. To avoid electric shock, perform only
those service procedures described in this manual.
The 12B, 18, 7 Series Service Manual provides the information necessary to service the
Fluke Model 12B, Model 18, and Models 7-300 and 7-600 meters. This manual provides
the following information:
• Specifications (Chapter 1)
• Basic theory of operation (Chapter 2)
• Disassembly and reassembly (Chapter 3)
• Performance tests (Chapter 3)
• Calibration (Chapter 3)
• Illustrated parts lists and schematic diagrams (Chapter 4)
Refer to the users instruction sheet for operating instructions.
Specifications
Specifications are in Table 1-1. Accuracy is specified for a period of one year after
calibration, at 18ºC to 28ºC (64ºF to 82ºF) with relative humidity to 90%. AC
conversions are ac-coupled, average responding, and calibrated to the rms value of a sine
wave input.