HT instruments HT9 User Manual
Page 2

HT6-HT8-HT9
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
3. PREPARATION FOR USE ....................................................................................................... 4
3.1.
Initial checks ..................................................................................................................................... 4
3.2.
Instrument power supply .................................................................................................................. 4
3.3.
Calibration ........................................................................................................................................ 4
3.4.
Storage ............................................................................................................................................. 4
4. OPERATING INSTRUCTIONS ................................................................................................. 5
4.1.
Instrument description ...................................................................................................................... 5
4.2.
Auto power on mode / Switching on ................................................................................................. 6
4.3.
Auto power off mode ........................................................................................................................ 6
5. INSTRUMENT FUNCTIONS ..................................................................................................... 7
5.1.
Voltage measurement and polarity indication .................................................................................. 7
5.2.
Phase detection function with 1 terminal .......................................................................................... 8
5.3.
Phase sequence ............................................................................................................................... 9
5.4.
Continuity test ................................................................................................................................. 10
5.5.
Lamp test ........................................................................................................................................ 11
6. MAINTENANCE ...................................................................................................................... 12
6.1.
General information ........................................................................................................................ 12
6.2.
Battery replacement ....................................................................................................................... 12
6.3.
Cleaning the instrument ................................................................................................................. 12
6.4.
End of life ....................................................................................................................................... 12
7. TECHNICAL SPECIFICATIONS ............................................................................................. 13
7.1.
Technical characteristics ................................................................................................................ 13
7.2.
General characteristics ................................................................................................................... 14
7.3.
Environment ................................................................................................................................... 14
7.3.1.
Environmental conditions for use ..................................................................................................... 14
7.4.
Accessories .................................................................................................................................... 14
7.4.1.
Accessories provided ....................................................................................................................... 14
8. SERVICE ................................................................................................................................ 15
8.1.
Warranty conditions ........................................................................................................................ 15
8.2.
Service ........................................................................................................................................... 15