Major tech MT328 Руководство по эксплуатации - Страница 5

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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

Push Select to change Selection

To Instantaneous, then Press "TEST"

Dial Starting

Current 123mA

Dial the Starting Current of the

Instantaneous Test using the knob

Select the Positive or negative

Start Edge using the Select Button

Connect Leads

To Earth & Phase

Connect Leads

The Test will start

V = 317V

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

Positive

Start Edge

I = 127mA

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)

CONNECTIONS

MAX 450V

CAT III