HT instruments GEO416 - Manual (Page 2)

GEO416 - GEO416GS
EN - 1
Table of contents:
1.
SAFETY PRECAUTIONS AND PROCEDURES .......................................................... 2
1.1. Preliminary instructions ..................................................................................................... 2
1.2. During use ......................................................................................................................... 3
1.3. After use ............................................................................................................................ 3
1.4. Definition of measurement category (Overvoltage) ........................................................... 3
2. GENERAL DESCRIPTION ........................................................................................... 4
2.1. Instrument description ....................................................................................................... 4
3. PREPARING THE INSTRUMENT ................................................................................ 4
3.1. Initial check........................................................................................................................ 4
3.2. Power supply ..................................................................................................................... 4
3.3. Calibration ......................................................................................................................... 4
3.4. Storage .............................................................................................................................. 4
4. WORKING INSTRUCTIONS ........................................................................................ 5
4.1. Instrument description ....................................................................................................... 5
4.2. MEASURING ACCESSORIES DESCRIPTION ................................................................ 5
Fig. 2: Measuring accessories description ................................................................................................ 5
4.2.1. Switching on ............................................................................................................................. 6
4.2.2. Auto power off .......................................................................................................................... 6
4.3. EARTH 3W – 3 wire earth resistance measurement ......................................................... 7
4.4. EARTH 2W – 2 wire earth resistance measurement ......................................................... 9
4.5.  - Ground resistivity measurement ................................................................................ 12
4.5.1. Anomalous measuring applications ....................................................................................... 15
5. MANAGEMENT OF STORED DATA .......................................................................... 17
5.1. How to save a measurement ........................................................................................... 17
5.2. how to cancel one or several measurements .................................................................. 17
5.3. How to recall a measurement .......................................................................................... 18
6. INSTRUMENT RESET ............................................................................................... 19
7. INSTRUMENT CONNECTION TO PC ....................................................................... 19
8. MAINTENANCE ......................................................................................................... 20
8.1. General............................................................................................................................ 20
8.2. Battery replacement ........................................................................................................ 20
8.3. Instrument cleaning ......................................................................................................... 20
8.4. End of life ........................................................................................................................ 20
9. TECHNICAL SPECIFICATIONS ................................................................................ 21
9.1. Technical features ........................................................................................................... 21
9.1.1. Reference standards .............................................................................................................. 22
9.1.2. General features .................................................................................................................... 22
9.2. Environment .................................................................................................................... 22
9.2.1. Operating environmental conditions ...................................................................................... 22
9.3. Accessories ..................................................................................................................... 22
9.3.1. Standard and optional accessories GEO416 ......................................................................... 22
9.3.2. Standard accessories GEO416GS ........................................................................................ 22
10. SERVICE .................................................................................................................... 23
10.1. Warranty terms ................................................................................................................ 23
10.2. After-sales service ........................................................................................................... 23
11. PRACTICAL REPORTS FOR ELECTRICAL TESTS ................................................. 24
11.1. Earth resistance in tt systems ......................................................................................... 24
11.2. Earth resistance, voltaamperemetric method .................................................................. 25
11.2.1. Creating cables extensions .................................................................................................... 25
11.2.2. Method for small-sized earth rods.......................................................................................... 25
11.2.3. Method for large-sized earth rods .......................................................................................... 25
11.3. Ground resistivity ............................................................................................................. 26
11.3.1. Approximate evaluation of intentional rods' contribution ....................................................... 27