ILLKO MDtest - Description of the Instrument; General Description

To Next Page

To Previous Page

MDtest (100-140 V) - User’s Manual 2 Description of the instrument

2 Description of the instrument

2.1 General description

The MDtest instrument is designed to verify the safety of electrical appliances and

medical devices in general. All AC measurements are measured by the method

TRMS (true rms), and for some measurements the DC component value can be

displayed. Measured circuits meet the requirements of EN 60601 and EN 62353

(requirements for measuring circuits), including the required input characteristics.

The MDtest performs the following tests:

• Earth bond test >1 A AC

• Insulation resistance test 250 V DC

• Alternative (substitute) equipment and applied part leakage current

• Direct equipment and applied part leakage current

• Diﬀerential leakage current

• Ground (Earth) leakage current

• Chassis (Enclosure) leakage current

• Lead to Ground (Patient) leakage current

• Lead isolation (Mains on applied parts leakage current)

• PE current during operation and diﬀerential leakage current

• Apparent power, mains voltage and current consumption

With additional equipment can be measured:

• measurement of PE current during operation and diﬀerential leakage current

of three-phase portable appliance by means of optional adapters

• measurement of apparent power and current consumption by means of current

clamp

The MDtest has furthermore additional features, which improve the safety of both

the operator and the DUT. These include:

• check for dangerous contact voltage on the PE of power outlet (before the

start of the measurement)

• check if the PE of the power outlet is grounded (before the start of the mea-

surement)

• automatic check for leakage current amplitude of the device under test

• check of the appliance’s current with automatic switch oﬀ the Test Socket 1:

0 ÷ 12 A . . . . . . . . . . . . . . . . . . . . max. 25 min

12 ÷ 16 A . . . . . . . . . . . . . . . . . . . max. 60 sec

• manual self-test

• nominal voltage 127 V or 120 V can be selected

 2018 ILLKO, s.r.o. www.illko.cz Page 8