6. RCCB / ELCB Testing - Sensitivity-
* - Instantaneous
- Time Delay
1 - Instantaneous
2- Time Delay
Push Select to change Selection
to instantaneous, then press “TEST”
Press 1 to select Instantaneous
Turn Instrument “ON” by pressing the “ON” button.
The L.C.D. Display will come to the following Screen.
KM 2820 EL
KM 2821 EL
Dial Starting
Current. 123mA
Enter Starting
Current. 123mA
Dial the Starting Current of the
Instantaneous Test using the Knob.
Enter the Starting Current for the
Test using the Keypad.
Positive
Start Edge
Select the positive or Negative
Start Edge using the Select Button.
Negative
Start Edge
0
180
Select the positive or Negative
Start Edge using any Number Button.
Connect Leads
to Earth & Phase
Connect Leads to Earth and Phase.
The Test will start Automatically.
Connect Leads
to Earth & Phase
V=317V
I=127mA
Test in Progress. The Voltage
between leads is 317V and I=127mA
V=317V
I=127mA
V=317V -
I=140mA Hold
g
TRP
TRP=
Tripped, Display on Hold
at 140mA, Tripped on
-
edge of signal
V=317V
I=999mA Hold
g
OVR
OVR=
OverRange Display on Hold
at 999mA, Did not trip.
7. RCCB / ELCB Testing - Time Delay-
- Instantaneous
*- Time Delay
1 - Instantaneous
2- Time Delay
Push Select to change Selection
to Time Delay, then press “TEST”
Press 2 to select Time Delay
Turn Instrument “ON” by pressing the “ON” button.
The L.C.D. Display will come to the following Screen.
KM 2820 EL
KM 2821 EL
Dial Testing
Current. 125mA
Enter Testing
Current. 125mA
Dial the Testing Current of the
Instantaneous Test using the Knob.
Enter the Testing Current for the
Test using the Keypad.
Positive
Start Edge
Select the Positive or Negative
Start Edge using the Select Button.
Negative
Start Edge
0
180
Select the Positive or Negative
Start Edge using any Number Button.
Connect Leads
to Earth & Phase
Connect Leads to Earth and Phase.
The Test will start Automatically.
Connect Leads
to Earth & Phase
V=317V T=4.023s
I=125mA
Test in Progress since 4.023s. The Voltage
between leads is 317V and Constant current is 125mA
V=317V T= 4.023s
I=125mA
V=317V + T=12.435s
I=125mA Hold
g
TRP
TRP=
Tripped, Display on Hold
at 12.435s, Tripped on
+
edge of signal
V=317V T=99.999s
I=125mA Hold
g
OVR
OVR=
OverRange Display on
Hold
at 99.999s, Did not trip.
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