21Wattmeters
ENGLISH
CONTENTS
1. GENERAL INSTRUCTIONS ................................................................................................... 22
1.1 Precautions and safety measures .................................................................................. 22
1.2 Protective systems .......................................................................................................... 23
1.3 Guarantee........................................................................................................................ 23
1.4 Repair and metrological verification ................................................................................ 24
1.5 Unpacking - Repacking ................................................................................................... 24
2. DESCRIPTION OF THE INSTRUMENT .................................................................................. 24
2.1 Casing (see the diagrams at the beginning of this operating manual) ........................... 25
2.2 Display ............................................................................................................................. 25
2.3. INRUSH function ............................................................................................................. 26
3. IMPLEMENTATION - FUNCTIONAL CHARACTERISTICS .................................................... 26
3.1. Reference conditions ...................................................................................................... 26
3.2 Voltage measurements (V) ......................................................................................... 27
3.3 Current measurements (A) ......................................................................................... 27
3.4 Power measurements ................................................................................................. 28
3.5 Communication (option) .................................................................................................. 32
3.6 Mains power supply (option) ........................................................................................... 32
4. GENERAL SPECIFICATIONS .................................................................................................. 32
4.1 Dimensions and weight ................................................................................................... 32
4.2 Power supply ................................................................................................................... 32
4.3 Environmental parameters .............................................................................................. 33
4.4 Compliance with norms ................................................................................................... 33
4.5 Variations in operating range .......................................................................................... 34
5. ACCESSORIES ....................................................................................................................... 34
5.1 Delivered with the wattmeters PX 110 / PX 120............................................................. 34
5.2 Delivered as options........................................................................................................ 34
6. MAINTENANCE ....................................................................................................................... 35
6.1 Replacing the batteries ................................................................................................... 35
6.2 Replacing the fuse .......................................................................................................... 35
6.2 Storage ............................................................................................................................ 35
6.3 Cleaning .......................................................................................................................... 35
北京海洋兴业科技股份有限公司（证券代码：839145）
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