Fluke 1744 User Manual

 

 

Introduction .......................................................................................... 1

Information and PC Software CD .....................................................  1

Logger Power Supply ....................................................................... 2

Power Interruptions........................................................................... 2

Introduction to the Logging Functions.................................................. 2

Symbols ............................................................................................ 4

Safety Instructions ................................................................................ 4

Qualified Personnel........................................................................... 6

Standard Equipment and Optional Accessories ................................  6

Features............................................................................................. 8

Power Network Configurations ........................................................ 10

Working with Logged Data............................................................... 10

Using the Logger .................................................................................. 11

Logging Jobs..................................................................................... 11

Preparing the Logger for Use............................................................  12

Test Leads – Markings.................................................................. 14

Connecting Current Probes ...........................................................  14

Logging with Voltage Converters.................................................  15

Connecting the Logger...................................................................... 15

Connections in 3-Phase 4-Wire (Wye) Systems ...........................  18

Connections in 3-Phase 3-Wire (Delta) Systems ..........................  19

Connections for Single-Phase Logging......................................... 20

Connections for Medium-Voltage Networks ................................  21

Phase-Phase Delta Logging .......................................................... 22

Phase-Ground, Wye-Logging ....................................................... 23

Logging with Two Voltage Converters and  
Two Current Transformers............................................................ 24

Logging............................................................................................. 25

Completing the Logging Job......................................................... 26

Evaluating the Logged Data.............................................................. 27

Methods of Logging.............................................................................. 27

Measuring Ranges............................................................................. 27

Signal Sampling............................................................................  28

Resolution Accuracy......................................................................... 28

Voltage Variations ............................................................................ 29