Measuring Rcd Tripping Time - Beha-Amprobe Telaris ProInstall-100-EUR Manual Del Usuario

To measure line impedance:
1. Turn the rotary switch to the
loop mode is selected by displaying the
2. Connect the red lead to the L (red) and the blue lead to the N (blue). Only the calibrated
test lead which are in scope of supply must be used! The resistance of the calibrated test
leads is subtracted from the result automatically.
3. Press F1 to select L-N.
WWarning
At this step, be careful not to select L-PE because a high current loop test will take place.
Any RCDs in the system will trip if you proceed.
Note: Connect the leads in a single-phase test to the system live and neutral. To measure
line-to-line impedance in a 3-phase system, connect the leads to 2 phases.
4. Press and release
• The primary (upper) display shows the line impedance.
• The secondary (lower) display shows the Prospective Short Circuit Current (PSC).
Use the connection shown in Figure 15 when measuring in a 3-phase 500 V system.

Measuring RCD Tripping Time

Figure 16. RCD Tripping Time Display/Switch and Terminal Settings
In this test, a calibrated fault current is induced into the circuit, causing the RCD to trip. The
meter measures and displays the time required for the RCD to trip. You can perform this test
with test leads or using the mains cord. The test is performed with a live circuit.
position. The LCD indicates that the high current
. Wait for the test to complete.
N (L3/Blue)
Figure 15. Measuring in a 3-Phase System
symbol.
L (L1/Red)
14
L1
L2
L3