MI 3101 EurotestAT: Measurements
Continuity
48
Test circuit for Continuity R200mA measurement
PCC1
PCC2
PCC3
PE/L3
L/L1
MPEC
MPEC....Main Potential Equilizing Collector
PCC....Protection Conductor Collector
extension lead
N/L2
Figure 5.6: Connection of universal test cable plus optional extension lead
Resistance to earth connection and equipotential bonding measurement procedure
Select the
CONTINUITY
function.
Set sub-function
R200mA (L-PE or N-PE)
.
Enable and set
limit
(optional).
Connect
test cable to the instrument.
Compensate
test leads resistance (if necessary).
Disconnect
from mains supply and discharge tested installation.
Connect
test leads to the tested PE wiring (see
figure
5.6
).
Press the
TEST
key for measurement.
After the measurement is finished
store
the result (optional).
Figure 5.7: Example of continuity R200mA result
Displayed results:
R..............Main R200mA resistance (average of R+ and R- results),
R+............R200mA sub-resistance with positive voltage at N terminal,
R- ............R200mA sub-resistance with positive voltage at PE terminal.
