HT 53, User Manual, Page: 20 / 88

HT53 - HT53/05
EN - 1
TABLE OF CONTENTS
1
SAFETY PRECAUTIONS ................. 2
1.1 Preliminary instruction .............. 3
1.2 During use ................................ 3
1.3 After use ................................... 3
2 GENERAL DESCRIPTION ................ 4
3 PREPARATION TO USE ................... 5
3.1 Initial checks ............................. 5
3.2 Supply voltage .......................... 5
3.3 Storage ..................................... 5
4 NOMENCLATURE ............................ 6
4.1 Instrument description .............. 6
5 OPERATING INSTRUCTIONS .......... 7
5.1 Illuminance measurement ........ 7
6 MAINTENANCE ................................ 8
6.1 General .................................... 8
6.2 Battery replacement ................. 8
6.3 Cleaning ................................... 9
6.4 End of life ................................. 9
7 TECHNICAL SPECIFICATIONS ..... 10
7.1 Technical characteristics ......... 10
7.2 General specification .............. 11
7.3 Environmental conditions ....... 11
7.4 Standard accessories ............. 11
8 SERVICE ........................................ 12
8.1 Warranty conditions ................ 12
8.2 Assistance .............................. 12