3.
FEATURES
2 Lines x16 Characters
Very Low Consumption
Smart Microprocessor Controlled
Two years Factory Warranty
Better than 2% accuracy (current)
Menu driven
Accurate Digital readout of Disconnection Time
Accurate Digital readout of Disconnection Sensitivity
Data Hold function
Zero Crossing Circuitry permit testing at 0˚ or 180˚
Disconnection Phase Polarity shown on L.C.D display
Auto-Off
Polarity Trip Indicator (positive or negative phase)
4.
CONNECTIONS
MAX 450V
CAT III
!
6.
RCCB/ELCB TESTING - SENSITIVITY -
Turn Instrument “ON” by pressing the “ON” button.
The L.C.D display will come to the following Screen.
* - Instantaneous
- Time Delay
Dial Starting
Current 123mA
Push Select to change Selection
To Instantaneous, then Press “TEST”
Dial the Starting Current of the
Instantaneous Test using the knob
Positive
Start Edge
Select the Positive or negative
Start Edge using the Select Button
Connect Leads
To Earth & Phase
Connect Leads
The Test will start
V = 317V
I = 127mA
Test in Progress
Between leads is 317V
V = 317V
I = 140mA HOLD → TRP
TRP = Tripped, Display on Hold
At 140mA, Tripped on - edge of signal
Summary of Contents for MT328
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