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GW INSTEK GDM-398 [21/75] B dc ac current measurement
![GW INSTEK GDM-398 [21/75] B dc ac current measurement](/views2/1664899/page21/bg15.png)
GDM-360/397/398/461 User Manual
19
B. DC/AC Current Measurement
(see figure 3)
A
GDM-360/397/398
A
GDM-461
figure 3
Содержание
- Handheld digital multimeter 1
- Table of contents 3
- Table of contents 5
- Overview 6
- Verview 6
- Gdm 360 397 398 461 user manual 7
- In the event you find anything missing or damaged please contact your dealer immediately 7
- Open the package case and take out the meter check the following items carefully to see if there are any missing or damaged parts 7
- Unpacking inspection 7
- Overview 8
- Safety information 8
- Gdm 360 397 398 461 user manual 9
- Rules for safe operation 9
- Overview 10
- A soft cloth and mild detergent should be used to clean the surface of the meter 11
- Constantly check the battery as it may leak when it has not been used for some 11
- Gdm 360 397 398 461 user manual 11
- International electrical symbols 11
- It for a long time 11
- The meter is suitable for indoor use 11
- Time replace the battery as soon as leaking is detected a leaking battery will damage the meter 11
- Turn the meter off when it is not in use and take out the battery when not using 11
- When servicing no abrasives and solvents should be used to prevent the surface of the meter from corrosion or damage 11
- Overview 12
- The meter structure 12
- Gdm 360 397 398 461 user manual 13
- Rotary switch 13
- The table below describes the relevant functions of each of the rotary switch positions 13
- Functional buttons 14
- Overview 14
- The table below describes what operations are performed for each of the buttons 14
- Display symbols 15
- Gdm 360 397 398 461 user manual 15
- Overview 16
- Gdm 360 397 398 461 user manual 17
- A dc ac voltage measurement 18
- Easurement operation 18
- Measurement operation 18
- Gdm 360 397 398 461 user manual 19
- Measurement operation 20
- B dc ac current measurement 21
- Gdm 360 397 398 461 user manual 21
- Measurement operation 22
- Gdm 360 397 398 461 user manual 23
- C resistance measurement 24
- Measurement operation 24
- Gdm 360 397 398 461 user manual 25
- Measurement operation 26
- D testing for continuity 27
- Gdm 360 397 398 461 user manual 27
- Measurement operation 28
- E testing diodes 29
- Gdm 360 397 398 461 user manual 29
- Measurement operation 30
- Gdm 360 397 398 461 user manual 31
- F capacitance measurement 32
- Measurement operation 32
- Gdm 360 397 398 461 user manual 33
- Measurement operation 34
- G frequency measurement 35
- Gdm 360 397 398 461 user manual 35
- Measurement operation 36
- Gdm 360 397 398 461 user manual 37
- H temperature measurement gdm 397 only 37
- Measurement operation 38
- Gdm 360 397 398 461 user manual 39
- I transistor hfe measurement gdm 398 only 39
- Measurement operation 40
- Gdm 360 397 398 461 user manual 41
- J ef function gdm 398 only 41
- Detected signal 42
- Lcd displays different size of digits to represent the strength of 42
- Measurement operation 42
- When the lcd displays ol the buzzer beeps and the red led blinks 42
- Gdm 360 397 398 461 user manual 43
- Hold mode 43
- Max min button gdm 360 397 398 only 44
- Measurement operation 44
- Peak hold gdm 461 only 44
- Range button 44
- Gdm 360 397 398 461 user manual 45
- Outputting data except gdm 398 45
- Measurement operation 46
- The use of relative value mode 46
- Gdm 360 397 398 461 user manual 47
- Sleep mode gdm 360 397 398 only 47
- The blue button 47
- Turning on the display backlight gdm 360 397 398 only 47
- Eneral specifications 48
- General specifications 48
- Gdm 360 397 398 461 user manual 49
- Accuracy specifications 50
- Dc voltage 50
- Gdm 397 398 50
- General specifications 50
- Gdm 360 51
- Gdm 360 397 398 461 user manual 51
- Gdm 461 51
- Ac voltage 52
- Gdm 397 398 52
- General specifications 52
- A residual reading of 10 digits with test leads shorted will not affect stated accuracy 53
- Ac crest factor can be up to 3 except 750v where it is 1 53
- Gdm 360 53
- Gdm 360 397 398 461 user manual 53
- True rms is applicable from 10 of range to 100 of range 53
- Gdm 461 54
- General specifications 54
- Dc current 55
- Gdm 360 397 398 461 user manual 55
- Gdm 397 398 55
- Gdm 360 56
- General specifications 56
- Gdm 360 397 398 461 user manual 57
- Gdm 461 57
- Ac current 58
- Gdm 397 398 58
- General specifications 58
- Gdm 360 59
- Gdm 360 397 398 461 user manual 59
- Gdm 461 60
- General specifications 60
- Gdm 360 397 398 461 user manual 61
- Gdm 397 398 61
- Resistance 61
- Gdm 360 62
- General specifications 62
- Gdm 360 397 398 461 user manual 63
- Gdm 461 63
- Capacitance 64
- Gdm 397 398 64
- General specifications 64
- Gdm 360 65
- Gdm 360 397 398 461 user manual 65
- Gdm 461 66
- General specifications 66
- Frequency 67
- Gdm 360 397 398 461 user manual 67
- Continuity test 68
- Diode test 68
- General specifications 68
- Gdm 360 397 398 461 user manual 69
- Temperature measurement gdm 397 only 69
- Transistor hfe gdm 398 only 69
- Aintenance 70
- General service 70
- Maintenance 70
- Gdm 360 397 398 461 user manual 71
- Replacing the battery 71
- Maintenance 72
- Replacing the fuses 73
- Maintenance 74
- Gdm 360 397 398 461 user manual 75
- Usb and rs232c serial port 75
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