UNI-T UT201, Руководство по эксплуатации

Страница: 17 / 32

Measurement Operation(3)
Note
l
In each range, the Meter has an input impedance of
10M
Ω
. This loading effect can cause measurement
errors in high impedance circuits. If the circuit impedance
is less than or equal to 10k
Ω
, the error is negligible
(0.1 or less).
l
When AC voltage measurement has been completed,
disconnect the connection between the testing leads
and the circuit under test and remove testing leads
from the input terminals.
17
C.Measuring Resistance
(see figure 5)
red black
( figure 5)
Warning
To avoid harms to you, do not attempt to input voltages
higher than 60V DC or 30V rms AC.
To avoid damages to the Meter or to the devices
under test, disconnect circuit power and discharge
all the high-voltage capacitors before measuring
resistance.
Model UT201/202: OPERATING MANUAL