Table of Contents1. INTRODUCTION ........................................ 31.1 International Electrical Symbols .............. 41.2 Definition of Measurement Categories .... 41.3 Receiving Your Shipment ........................ 51.4 Ordering Information ............................... 51.4.1 Accessories/Replacement Parts .. 52. PRODUCT FEATURES ............................... 62.1 Description .............................................. 62.2 Model 670/675 Control Features............. 72.3 LCD Display ............................................ 82.4 Button Functions ..................................... 92.4.1 HOLD Button ............................... 92.4.2 Correction of Zero inDC measurement ........................ 92.4.3 Auto Power OFF .......................... 92.4.4 DISPLAY Button ........................ 102.4.5 MIN/MAX Function (500ms) ...... 102.4.6 Peak Function (1ms).................. 102.4.7 Backlight Button ......................... 103. SPECIFICATIONS .................................... 113.1 Electrical Specifications ........................ 113.2 Mechanical Specifications ..................... 133.3 Environmental Specifications ................ 143.4 Safety Specifications ............................. 144. OPERATION ............................................ 154.1 AC Current Measurement ..................... 154.2 AC Voltage and CurrentMeasurement Simultaneously ............... 16