Continuity Test; Cleaning The Device; Battery Replacement - zenitech 161071 Manual De Usuario

4.6 Continuity test

Warning
Before carrying out a continuity test, switch off the circuit and discharge all capacitors
completely.
• Set the rotary knob to
• Reliez le cordon rouge à la borne d'entrée "mAVΩ" et le cordon noir à la borne COM.
• Raccordez les cordons au circuit testé.
• Connect the red test probe to the input jack and the black test jack to the COM jack.
• Connect the test leads to the circuit under test.
If the measured resistance is less than 50Ω the buzzer sounds.
5. MAINTENANCE
Warning
• Maintenance and calibration should only be performed by professionals.
• For further protection against fire, replace the fuse(s) with a model with the following voltage
and current characteristics:
FF - F1 500mA / 600V and FF - F2: 10A / 600V.
• Before opening the case, always remove the test probes from all circuits.
• Never use the unit with the rear cover removed or not properly closed.
• If an abnormal performance occurs, stop using the unit immediately and return it to the
after-sales service for repair.
• When not using the device for a long time, remove the battery and avoid storing the unit in a
warm or humid environment.

5.1 Cleaning the device

Warning
Before opening the rear cover, switch off the device and disconnect the probes from any
circuit.
Clean the device with a damp cloth impregnated with a mild detergent (not chemical solvents).
Dirt or moisture on the input jacks can lead to incorrect measurements.
To clean the input jacks:
• Turn the rotary knob to OFF and remove the test probes.
• Carefully clean all input jacks.
• Take a cotton swab soaked in solvent or grease to clean the jacks.
Change the cotton swab for each jack to prevent contamination.

5.2 Battery replacement

Warning
Avant d'ouvrir le couvercle arrière, éteignez l'appareil et débranchez les
Before opening the back cover, switch off the device and disconnect the
test probes from the circuits under test.
To replace the battery (see opposite figure):
• If the battery voltage falls below the «normal
operating voltage», then the symbol «
appears on the screen.
• Set the rotary knob to OFF.
• Remove the test probes from the input jacks.
• Unscrew the battery compartment cover and
remove it.
• Replace the old battery with a new one of the same type.
• Mount the cover and fix it again.
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