Chekman TK-1000A - DC Current Measurements(직류 전류 측정); Voltage Measurements(전압 측정)

15
직류 전류 측정 (DCA)
Make certain that all test leads are disconnected from the in-
strument terminal.
Set the function switch to the " " Range.
Press ZERO button, make sure that the display are " " reading.
Press the trigger to open the transformer jaws and clamp
them around a conductor.
The most accurate reading will be obtained by keeping the
conduct or aligned with the centering
marks on the transformer jaws the direction of the current
correspond to the indication of the pointer on the jaw.
Polarity inversion is indicated by " " on the display.
The clamp jaw be perfectly closed.
Read the displayed value.
.
6-2. DC Current measurements TK-2000AD▶
WARNING
A
0
-
경 고
A
①
②
③
④
⑤
①
측정하시기 전에 기기의 단자에 연결된 테스터 리드를 확실하게 분리시켜 주십시오.
기능스위치를 " " 레인지에 선택합니다
▶TK-2000AD
Fig-1
Ω
MAN MAX MIN
MK
Hz
H
mAV
300 10 20
H
HOLD
MAX/MIN
RANGE
COM
CAT.
Ω
V
MAX
600V
Hz
Ω
V
Hz
1000A
40A
OFF
V
AC electric wire
16
Fig-2
Ω
MAN MAX MIN
MK
Hz
H
mAV
300 10 20
H
HOLD
MAX/MIN
RANGE
COM
CAT.
Ω
V
MAX
600V
Hz
Ω
V
Hz
1000A
40A
OFF
V
DC electric + wire
ZERO②
③
④
⑤
버턴을 눌러 수치를 " "으로 고정시킵니다.
클램프 코아 손잡이 (트리거)를 눌러 부하가 걸린 전원선 1가닥(단상,
삼상 동일)을 클램프 코아에 정확히 삽입하고 양쪽의 코아가 접촉되게
코아 손잡이를 놓습니다.
클램프 코아 " "표시의 극성이 바뀌면 화면에 " "가 나타납니다.
부하가 걸린 전원 선이 코아의 중심에 지나가도록 합니다.
지시치를 읽습니다.
0
+ -
6-3. Voltage measurements
Turn off power to the device under test and discharge all
capacitors.
Plug the black test lead into the COM input jack on the meter
and connect the test lead tip to a grounded point(the refer-
ence point for measurement of voltage).
Select the desired AC voltage range( ), or DC voltage range( ).
Plug the test lead into the " " input jack on the meter and
connect the circuit where a voltage measurement is required.
Voltage is always measured in parallel across a test point.
After completing the measurement, turn off power to the circuit/
device under test, discharge all capacitors and disconnect the-
meter test leads.
①
②
③
④
⑤
V V
V