Testec TT-CC 770 handleiding

Handleiding

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AC/DC Oscilloscope Current Probes TT-CC Series

E-9

English

Table 1: Current probes’ controls and indicators

Control/Indicator Description

Current flow symbol. The arrow shows the

probe’s polarity convention for measuring

current flowing from positive to negative.

Zero adjustment. Rotate to adjust the probe

output to zero when there is no current

present. It may also be used to offset a DC

signal component. Zeroing is not needed for AC

measurements unless your instrument cannot

isolate a DC component (if present).

Measurement range

for TT-CC-550 current

probe

OFF/Range switch. Slide the switch from

OFF to either the low or high measurement

range. When either range is selected, the

probe is turned on, and the green battery

indicator lights. If the indicator does not light,

see “Battery and AC Power Adapter” and

“Battery Installation/Removal”.

ON indicator. The green battery indicator

lights when the probe is turned on. For more

information, see “Battery and AC Power

Adapter” and “Battery Installation/Removal”.

Overload indicator. The red overload

indicator lights if the measured signal is

greater than the selected range capacity.

Switch the probe to higher measurement range,

if possible, or remove the probe from the circuit.

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