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Phase rotation test 

L LED and R LED’s for the Phase rotation test 
may operate on various wiring systems, but an 
effective test result can only be obtained on 
three-phase 4-wire systems.
Hold the tester and remote probe firmly in each 
hand, ensuring hands are behind the hand 
barriers, and connect the probes to the object 
under test, each probe to one of the phases 
that should be tested. Phase-to-phase voltage is 
indicated by voltage LEDs and LCD display.

R LED lights up for Right rotary field. (L1, L2, L3)
L LED lights up for Left rotary field. (L1, L3, L2)

Measurement principle: The instrument detects 

the phase rising order referencing the user as 

earth. The function of this test may not be fully 

achieved if the insulation condition/ grounding 

conditions of user or of the equipment under 
test are not good enough. 

Torch light

Pressing the torch light button will turn on the 
light and after approximately 10s it will turn 
itself off.

Battery Replacement

Remove the probes from any testing point, when 
opening the battery cap. Batteries are exhausted 
when the “continuity/self” test with both test 
probes connected cannot be achieved anymore. 
A battery symbol 

+ 1.5 V AAA -

 in the LCD display 

indicates low battery. 
Follow the procedure below and replace batteries 
with new ones (type AAA / IEC R03 1.5 V). 
Unscrew the battery cap, e.g. with a screwdriver. 
Pull out the battery cap and replace the batteries. 
Insert new batteries according to the engraving 
on the battery cap and re-assemble battery cap.
Confirm that the battery cap is properly locked 
prior to measurements.

 - Conformity symbol, the instrument 

complies with the valid directives. It complies with 
the EMV  Directive (2014/30/EU), Standard EN 
61326-1 are fulfilled. It also complies with the 
Low Voltage Directive (2014/35/EU), 
Standard EN61243-3 is fulfilled.

Summary of Contents for TPT420

Page 1: ...TPT420 Two pole voltage tester User guide Test Equipment Depot 800 517 8431 5 Commonwealth Ave MA 01801 TestEquipmentDepot com...

Page 2: ...by connecting to a known voltage source e g a suitable 120 230 V outlet or a suitable proving unit before and after use Tests for voltage should be made with both poles Extreme care must be taken whe...

Page 3: ...age is present When there is no indication of voltage present it is still recommended to earth equipment before commencing work A voltage detector of relatively high internal impedance compared to the...

Page 4: ...rotected by an RCD RCBO and Safety Breaker the TPT420 will not trip these devices The phase rotation indication function is simplified which avoids the crossing of the test probes adopted by some 2 po...

Page 5: ...an also be switched on with the torch light button Auto power off The tester is automatically powered off after 5 sec when there is no signal detected by the probes The torch light switches off after...

Page 6: ...age warning LED illuminates 50 VAC 120 VDC and the LCD display is blank then check the batteries This feature must not be used as a means of continuing voltage indications If the low battery indicator...

Page 7: ...ED indicates DC DC During a voltage test L or R LEDs may illuminate For voltages over 1000 V AC and 1500 V DC the LCD will display OL Single pole phase test Hold the tester securely in your hand Conne...

Page 8: ...t good enough Torch light Pressing the torch light button will turn on the light and after approximately 10s it will turn itself off Battery Replacement Remove the probes from any testing point when o...

Page 9: ...r of Electrical and Electronic equipment The registration no is WEE DJ2235XR Users of Megger products in the UK may dispose of them at the end of their useful life by contacting B2B Compliance at www...

Page 10: ...ange indication OL Peak current Is 3 5 mA at 1000 V Measurement Duty 30 s ON operation time 240 s OFF recovery time Internal battery consumption Approx 80 mA Single pole phase test voltage range 100 1...

Page 11: ...a Returns Authorisation number must first be obtained by contacting one of the addresses shown You will be asked to provide key information such as the instrument serial number and fault reported when...

Page 12: ...s user guide is in compliance with Directive 2014 53 EU Other equipment manufactured by Megger Instruments Limited described in this user guide is in compliance with Directives 2014 30 EU and 2014 35...

Page 13: ...M Test Equipment Depot 800 517 8431 5 Commonwealth Ave MA 01801 TestEquipmentDepot com...

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