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1000V/DCV. ,750V/ACV 

Sampling Rate:        

2.5 times per second. 

Zero Adjustment:        

Automatic adjustment. 

Over Range Indicator:

   

OL

 of highest digit is displayed. 

Low Battery Indication:

 The            is displayed when the battery   

Voltage drop below the operating voltage. 

Operating Temperature: 

0ºC to 40ºC (32ºF to 104ºF) and Humidity 

below 80% RH 

Storage Temperature: 

-10ºC to 60ºC (14ºF to 140ºF) and Humidity 

below 70% RH 

Power source: 

DC9V (6x1.5V Size “AA” battery or

 Equivalent) 

Dimensions:

    200(L) x 92(W) x 50(H) mm 

Weight:

        Approx 700g include battery 

Accessories:

 Test leads, 6pcs battery, Carrying case, manual. 

 

1-2  Electrical Specifications 

Accuracies are specified in the way: 

±

(…% of r…digits) at 23ºC

±

5ºC,below 80% RH. 

OHMS 

Range 

Resolution  Accuracy 

Max. open 
Circuit Voltage 

Overload 
Protection 

40.00

Ω

 

0.01

Ω

 

+(1.2%+3) 

  5.8V 

250Vrms 

400.0

Ω

 

0.1

Ω

 

  5.8V 

 

Continuity Beeper 

Range  Resolution  Operation 

Resistance 

Max.open 
Circuit 
Voltage 

Overload 
Protection 

Summary of Contents for 420001

Page 1: ...Electrical Insulation Tester 420001...

Page 2: ...working around bare conductors or bus bars Accidental contact with the conductor could result in electric shock Use the meter only as specified in this manual otherwise the protection provided by the...

Page 3: ...Environment conditions Installation Categories Pollution Degree 2 Altitude up to 2000 meters Indoor use only Relatively humidity 80 max Operation Ambient 0 40 C Maintenance Clearing Repairs or servic...

Page 4: ...14 F to 140 F and Humidity below 70 RH Power source DC9V 6x1 5V Size AA battery or Equivalent Dimensions 200 L x 92 W x 50 H mm Weight Approx 700g include battery Accessories Test leads 6pcs battery...

Page 5: ...1 2 10 10M 750Vrms Meg OHMS Terminal Voltage Range Resoluti on Accuracy Test Current Short circuit current 125V 0 10 0 125 4 000 M 0 001M 2 10 1mA load 125k 1mA 4 001 40 00 M 0 01M 2 10 40 01 400 0 M...

Page 6: ...test leads On M Range and 400 BZ ACV DCV Connect the red test lead into the V terminal and the black lead into the COM terminal 2 2 Battery Check UP Replacement a As battery power is not sufficient LC...

Page 7: ...o the MIN if instant pressing once more it will recycle but exit if pressing 2 seconds again LOCK In the insulation resistance testing function press the LOCK button and then push down the TEST key it...

Page 8: ...nous with the primary display While testing the insulation resistance the symbol flashes frequently if the voltage is over 30V While testing the insulation resistance the symbol flashes frequently and...

Page 9: ...erous or its voltage is lower than 30V it will enter into the formal testing process and brings the high voltage on the primary display the insulation resistance in M is indicated in phase with analog...

Page 10: ...us with the analog bar d When the impedance on circuit is below approximately 35 It will indicate by a continuous beeper e The current is from 200 to 220mA while the tested resistance is 0 f The high...

Page 11: ...terminals or by opening the main switch If the main switch is used and the motor also has a starter then the starter must be held by some means in the ON position In the latter case the measured resis...

Page 12: ...armature field coils and brush rigging by connecting one megohmmeter lead to each of them individually leaving the other connected to the grounded motor housing The above also applies to DC Gemerator...

Page 13: ...from other equipment Check each conductor to ground and or lead sheath by connecting one megohmmeter lead to a ground and or lead sheather and the other megohmmeter lead to each of the conductors in t...

Page 14: ...ranty does not cover probes batteries battery leakage or damage resulting from accident tampering misuse or abuse of the product Opening the meter to expose its electronics will break the waterproof s...

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