User manual

MD 1060, MD 1160
9
6. Preparation for tests
6.1 Auto-power-on/ switching on
• The tester switches on when it detects continuity, an AC or DC voltage above approx. 10V
or a live phase on L2 (single pole test).
• It can be switched on with the torch light button.
6.2 Auto-power off
• Tester is automatically powered off after 5 sec when there is no signal contacted to the
probes.
• The torch light switches off after approx. 10 sec.
7. Conducting Tests
7.1 Voltage test
• Connect both probes to the object under test.
• The voltage is indicated by LEDs and LCD (MD 1160 only)
• Buzzer sounds when a threshold voltage of approx. 38VAC or approx. 100 VDC is
exceeded.
• Voltage polarity is indicated in following manner.
 AC: + and – 12V LED are on
 +DC: +12V LED is on
 -DC: -12V LED is on
When the L2 probe + is the positive (negative) potential, the Polarity indication LED
indicates “+DC” (“-DC”).
During voltage test, L or R LED may light up.
In case of empty batteries, the ELV LED lights up >50VAC, >120VDC
7.2 Single-pole phase test
Function of this test may not be fully achieved if the insulation condition/ grounding
conditions of user or of the equipment under test aren’t good enough. Verification of live-
circuit shouldn’t be dependent on this Single-pole phase test only, but on the voltage test.
• Hold the tester good in your hand. Connect the “L2 +” probe to the object under test.
Live circuit LED lights up and buzzer sounds when a voltage of approx. 100V AC or more
exists in the object under test. (Pol≥100VAC).
7.3 Phase rotation test
• L LED and R LED for Phase rotation test may operate on various wiring systems, but
effective testing result can be obtained only on three-phase 4-wire system.
• Hold the tester good in your hand and connect both probes to the object under test.
• Phase-to-phase voltage is indicated by Voltage LEDs.
• R LED lights up for Right rotary field.
• L LED lights up for Left rotary field.
• Measurement principle: The instrument detects the phase rising order regarding the user as
earth.
Function of this test may not be fully achieved if the insulation condition/ grounding
conditions of user or of the equipment under test is not good enough.