Facom NU-701A Guía De Instrucciones página 9

Always perform an autotest before and afterusing the detector.
Never use the detector if the autotest is incorrect.
■ Verify the presence of voltage on the three phases to be tested on a three-phase
network.
Phase rotation test:
■ Place the red test probe on the fi rst phase and the black test probe on the second phase.
■ Press the phase rotation button.
Result:
■ If the phase rotation order is direct, LED L1 to L2 comes on: the rotation direction
is direct.
■ If the phase rotation order is indirect, LED L1 to L3 comes on.
NB: The voltage detection function remains active during this test.
Characteristics and range for use:
· Voltage : 360V < U < 690V
· Frequency : 50Hz and 60Hz (± 5 %)
30 mA differential circuit-breaker tripping (RCDs) test
Attention: This test involves creating a fault current between the phase and earth >
30mA with 230VAC.
■ Place the red test probe on the phase and the black test probe on the earth
terminal bar. A voltage indication is displayed.
■ Press the test button.
■ The 30mA differential circuit breaker must trip.
After disconnecting (the circuit breaker), the voltage indication disappears.
Characteristics and range for use:
· Voltage : 230V Ph/E
· Fault current generated > 30mA
· Frequency: 50Hz and 60Hz (± 5 %)
Only use specifi ed spare parts for maintenance purposes. The manufacturer
cannot accept any responsibility for accidents occurring following repairs carried
out outside its after-sales department or approved maintenance network.
Changing the battery.
For safety reasons, never open the detector before fi rst disconnecting it from
any source of electricity.
■ Remove the captive screw fastening the battery compartment and open the
battery
compartment.
■ Replace the used 9 V battery.
■ Close the battery compartment and retighten the screw on the back of the
casing.
Storage
If the detector is not used for a period of more than 60 days, remove the
battery and store it separately.
Cleaning
The instrument must be disconnected from any source of electricity.
Clean the unit with a cloth slightly moistened with soapy water. Wipe off with a
damp cloth.
Then dry quickly with a cloth or pulsed air.
Periodic verifi cation
It is essential that all measuring instruments are regularly checked.
For checking of your instrument, please contact our laboratories.
Please contact your FACOM distributor.
NU-701A_0607.indd Sec1:9 NU-701A_0607.indd Sec1:9
Phase rotation
Maintenance
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