Ω : Resistance Measurement And Continuity Test - Tenmars TM-507 User Manual

Ω :
4.4. RESISTANCE MEASUREMENT AND CONTINUITY TEST
Before taking resistance measurements make sure that the circuit under test is
not powered and that eventual condensers are discharged. The measured
value is out of accuracy if an input voltage is present.
Fig. 4: Connection of the instrument's terminals during Ω
1.
2.
3. Insert the black and green cables in the corresponding input terminals of the instrument
4. If the measuring cables being used have not
been calibrated,
described in paragraph 4.4.1
5. Position the test probes on the desired points of the circuit
under test (see Fig. 4)
6.
Example of display of resistance value. If such value is lower than 30Ω the instrument emits
7.
an acoustic signal
8. +
9. In lock mode the instrument emits an acoustic signal and the auto power off is disabled
Turn on the instrument
Press the arrow keys to select Ω
first calibrate
Press GO to perform the measurement
Press LOCK and GO to perform the measurement in continuous
mode, the symbol LOCK is displayed. Press GO another time to
stop the continuous mode measurement
CAUTION
them as
EN - 8
TM-507
test
Resistance value