Tonghui TH2618B, Operation Manual

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CONTENTS
Chapter 1 General introduction
............................................................................................5
1.1 Brief introduction ......................................................................................................5
1.2 Specifications ............................................................................................................5
1.2.1 Measurement terminals .....................................................................................5
1.2.2 Measurement parameters...................................................................................6
1.2.3 Display range ....................................................................................................6
1.2.4 Measurement accuracy......................................................................................6
1.2.4.1 Maximum and minimum values for different ranges ....................................7
1.2.4.2 Deviation factor ks ........................................................................................7
1.2.4.3 Level factor kv ..............................................................................................7
1.2.4.4 Frequency factor kf .......................................................................................7
1.2.5 Test signal frequency ........................................................................................7
1.2.6 Test signal level.................................................................................................7
1.2.7 Output impedance of measurement signal ........................................................7
1.2.8 Measurement speed...........................................................................................8
1.2.9 Inputting data range...........................................................................................8
1.3 Operating environment..............................................................................................8
1.3.1 Temperature & Humidity..................................................................................8
1.3.2 Power ................................................................................................................8
1.3.3 Warm-up ...........................................................................................................8
1.3.4 Notice ................................................................................................................9
1.4 Dimensions and weight .............................................................................................9
1.5 Function index...........................................................................................................9
1.6 Panel........................................................................................................................10
1.6.1 Rear panel description.....................................................................................10
1.6.2 Front Panel Description...................................................................................11
Chapter 2 Operation instruction
.........................................................................................14
2.1 Keyboard and functions introduction......................................................................14
2.2 Function conversion in “measurement” state..........................................................16
2.2.1 Measurement parameters.................................................................................16
2.2.2 Measurement frequency ..................................................................................17
2.2.3 Test signal level...............................................................................................17
2.2.4 Display mode ..................................................................................................17
2.2.4.1 Direct.......................................................................................................17
2.2.4.2
△
% .........................................................................................................18
2.2.5 Range mode.....................................................................................................18
2.2.5.1 Range definition and its range.................................................................18
2.2.5.2 Range
Hold..............................................................................................19
2.2.6 Measurement speed.........................................................................................19
2.2.7 Clear (Correction) ...........................................................................................20
2.3.1 Alarm ..............................................................................................................22