Amprobe DM-111S Current-Data-Logger - Manual (Page 4)

DMIIIS
EN - 2
6.4.2. "METER" mode ................................................................................................ 35
7. STARTING A RECORDING ................................................................................................ 36
8. DURING A RECORDING .................................................................................................... 38
9. STOPPING A RECORDING OR AN ENERGY MEASUREMENT ...................................... 39
10. CONNECTING THE INSTRUMENT TO A PC ................................................................. 40
11. MEASURING PROCEDURES ......................................................................................... 41
11.1. Hints for flexible clamps use ..................................................................................... 41
11.2. Using the instrument in a single phase system ......................................................... 42
11.3. Using the instrument in a three phase 4 wire system................................................ 43
11.4. Using the instrument in a three phase 3 wire system................................................ 44
12. MAINTENANCE ............................................................................................................... 46
12.1. General ..................................................................................................................... 46
12.2. Battery replacement ................................................................................................. 46
12.3. Cleaning ................................................................................................................... 46
13. TECHNICAL SPECIFICATIONS ...................................................................................... 47
13.1. Features ................................................................................................................... 47
13.1.1. Voltage measurement (autoranging) ............................................................ 47
13.1.2. Voltage anomalies detection (manual selection of range) ............................ 47
13.1.3. Current measurement (using external transducer) ....................................... 47
13.1.4. Power measurement (cos

: 0.5c
– 0.5i) ....................................................... 47
13.1.5. Cos

measurement ...................................................................................... 47
13.1.6. Measurement of harmonics .......................................................................... 48
13.1.7. Frequency measurement.............................................................................. 48
13.1.8. Compliance .................................................................................................. 48
13.1.9. Temperature drift .......................................................................................... 48
13.1.10. Safety ........................................................................................................... 48
13.1.11. General characteristics ................................................................................. 49
13.2. ENVIRONMENT ....................................................................................................... 49
13.2.1. Operating conditions .................................................................................... 49
13.2.2. EMC ............................................................................................................. 49
13.3. ACCESSORIES ........................................................................................................ 49
13.3.1. Standard accessories ................................................................................... 49
14. APPENDIX 1 – MESSAGES DISPLAYED ....................................................................... 50
15. APPENDIX 2 – RECORDABLE PARAMETERS: SYMBOLS ........................................... 51
16. APPENDIX 3 – THEORETICAL OUTLINES .................................................................... 52
16.1. Voltage anomalies (voltage sag and surge) .............................................................. 52
16.2. Voltage and current harmonics ................................................................................. 52
16.2.1. Theory .......................................................................................................... 52
16.2.2. Limit values for harmonics ............................................................................ 53
16.2.3. Presence of harmonics: causes ................................................................... 54
16.2.4. Presence of harmonics: consequences ........................................................ 54
16.3. Power and power factor: definitions .......................................................................... 55
16.3.1. Conventions on powers and power factors................................................... 56
16.3.2. 3 phase 3 wire system .................................................................................. 57
16.4. Measuring method: outlines ...................................................................................... 58
16.4.1. Integration periods ........................................................................................ 58
16.4.2. Power factor calculations.............................................................................. 58
17. AFTER-SALE SERVICE .................................................................................................. 59
17.1. Warranty ................................................................................................................... 59
17.2. Service ..................................................................................................................... 59