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HT2055
EN - 1
TABLE OF CONTENTS
1
PRECAUTIONS AND SAFETY MEASURES .............................................................................. 2
1.1
Preliminary instructions ........................................................................................................................ 2
1.2
During use ............................................................................................................................................ 3
1.3
After use ............................................................................................................................................... 3
1.4
Definition of measurement (overvoltage) category .............................................................................. 3
2
GENERAL DESCRIPTION .......................................................................................................... 4
2.1
Instrument features ............................................................................................................................. 4
3
PREPARATION FOR USE .......................................................................................................... 5
3.1
Initial inspections .................................................................................................................................. 5
3.2
Instrument power supply ...................................................................................................................... 5
3.3
Storage ................................................................................................................................................. 5
4
DESCRIPTION OF PARTS .......................................................................................................... 6
4.1
HT2055S station unit description ......................................................................................................... 6
4.1.1
Modify of supply voltage for HT2055S unit........................................................................................ 6
4.2
Description of test leads ....................................................................................................................... 7
4.2.1
Front view .......................................................................................................................................... 7
4.2.2
Top view ............................................................................................................................................ 7
4.2.3
Backside view .................................................................................................................................... 8
5
INITIAL OPERATIONS WITH HT2055M UNIT ............................................................................ 9
5.1
Settings ................................................................................................................................................. 9
5.1.1
Language selection ........................................................................................................................... 9
5.1.2
Help screen ....................................................................................................................................... 9
5.1.3
Synchronization ............................................................................................................................... 10
5.1.4
Default settings ................................................................................................................................ 11
5.1.5
Time/Date settings .......................................................................................................................... 11
5.2
Messages at display ........................................................................................................................... 11
6
INITIAL OPERATIONS WITH HT2055S UNIT .......................................................................... 12
6.1
Settings ............................................................................................................................................... 12
6.1.1
Default settings ................................................................................................................................ 12
6.1.2
Setting output power ....................................................................................................................... 13
6.1.3
Setting alarm condition .................................................................................................................... 13
6.2
Adjust contrast of display ................................................................................................................... 14
6.3
Help screens ...................................................................................................................................... 14
6.4
Messages at display ........................................................................................................................... 14
7
HOW TO PERFORM THE MEASUREMENTS .......................................................................... 15
7.1
Theory of Step/Contact voltage measurements ................................................................................. 15
7.2
Step/Contact voltage measurement ................................................................................................... 16
7.3
Earth resistance measurement .......................................................................................................... 21
7.4
Ground resistivity measurement ........................................................................................................ 23
8
OPERATION WITH MEMORY ................................................................................................... 25
8.1
Saving results ..................................................................................................................................... 26
8.2
Recall result at display ....................................................................................................................... 26
8.3
Delete saved results ........................................................................................................................... 27
9
CONNECTION OF THE INSTRUMENT TO PC ........................................................................ 28
9.1
Installation of software and initial configurations (Win XP) ................................................................ 28
10
MAINTENANCE ......................................................................................................................... 30
10.1
Replacement and charging batteries ................................................................................................. 30
10.2
Replacement fuses of HT2055S unit ................................................................................................. 30
10.3
Cleaning the instrument ..................................................................................................................... 30
10.4
End of life............................................................................................................................................ 30
11
TECHNICAL SPECIFICATIONS ............................................................................................... 31
11.1
General characteristics ....................................................................................................................... 32
11.2
Environment ....................................................................................................................................... 33
11.3
Standard accessories ......................................................................................................................... 33
11.4
Optional accessories .......................................................................................................................... 33
12
SERVICE ................................................................................................................................... 34
12.1
Warranty conditions ............................................................................................................................ 34
12.2
Service ................................................................................................................................................ 34