Dc Current Measurement - TESTBOY TB-3000 Bedienungsanleitung

DC current measurement

Set the selector switch to measurement range A≅. Use the 'M' button to set
the device to DC. Insert the black test lead into the 'COM' socket and the red
test lead into the right-hand socket (up to max. 250 mA).
You must use the '10 A' socket when measuring currents above
250 mA.
Using the test probes, touch the test points of the test object. The multimeter
automatically searches for the most suitable measurement range. Read
measurement value on the display.
To protect against overheating, measurements should not be taken
for more than 30 seconds. Following this the device should be al-
lowed to cool down for at least 30 minutes.
Direct current
Range
200 µA
2000 µA
20 mA
200 mA
2 A
10 A*
Overload protection: F 250mA/690V fuse protection for µA and mA ranges.
10 A range is protected by 10 A/690V.
* On 10A-range pay attention to maximum ON/OFF time!
To protect against overheating, measurements should not be taken
for more than 30 seconds. Following this the device should be al-
lowed to cool down for at least 30 minutes.
®
Testboy TB-3000
Resolution
0.1 µA
1 µA
0.01 mA
0.1 mA
10 mA
0.01 A
Operation
Accuracy
± 1.0% of rdg. + 3 digits
± 1.2% of rdg. + 5 digits
35