Measuring Resistance - Egatronic 51248 Manual De Instrucciones

Note:
- AC Millivolt is a manual ranging measurement mode.
- In each range, the Meter has an input impedance of 10MΩ. This loading effect can cause
measurement errors in high impedance circuits. If the circuit impedance is less than or equal to
10kΩ, the error is negligible (0.1% or less).
- When DC/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.
B. Measuring Resistance (see figure 4)
Warning!
To measure resistance, connect the Meter as follows:
1. Insert the red test lead into the VΩHz terminal and black test lead into the COM terminal.
2. Set the rotary switch to Ω.
3. Connect the test leads across with the object being measured. The measured value shows on
the display.
Note:
- To obtain a more precise reading, you could remove the objects being tested from the circuit
when measuring.
- The test leads can add 0.1Ω to 0.3Ω of error to resistance measurement. To obtain precision
readings in low-resistance measurement, short-circuit the input terminals beforehand, press ZERO
to automatically subtract the value measured when the testing leads are short-circuited from the
reading.
- For high-resistance measurement (>1MΩ), it is normal to take several seconds to obtain a
stable reading.
- To avoid harms to you or damages to the Meter from eletric shock, do not attempt to input
voltages higher than 33V AC or 70V DC.
- When resistance measurement has been completed, disconnect the connection between the
testing leads and the circuit under test and remove testing leads from the input terminals.
24
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.
figure 4