TENMARS Insulation Tester,auto range: 250V/500V/1000V

TM-507_Insulation Tester
EN 61557, EN 61010-1 CAT IV 600V
4 digit LCD display.
Automatic Polarity Indication.
Low battery indication.
Measures high insulation resistance with auto range:
250V: 4MO to 1000MO.
500V: 4MO to 2000MO.
1000V: 4MO to 4000MO.
Measures AC and DC voltages: 0V to 600V.
Function Keys: POWER, GO, ZERO, LOCK, BACKLIT.
Continuity Test.
Auto Discharge.
Auto Power Off.
Specification
DC voltage measurement
Range Resolution Accuracy Input impedance Overload protection
0.1 - 600.0V 0.1V ± ( 0.5 % rdg+1dgt) 3MO 605V AC max RMS

AC voltage measurement
Range Resolution Accuracy Input impedance Overload protection
0.1 - 600.0V 0.1V ± ( 0.8 % rdg+4dgt) 3MO 605V AC max RMS
Max crest factor: v2

Resistance measurement/Test Continuity with buzzer
Range Resolution Accuracy Overload protection
0.1 - 199.9O 0.1O ±( 2.0 %rdg+3dgt) 605V AC max RMS per 1 minute

Lo ohms
Range Resolution Accuracy Overload protection
0.01 - 19.99O 0.01O ±( 2.0 %rdg+3dgt) 605V max RMS
Test current: >200mA DC up to 5O (measuring cables resistance included)
Test current: >45mA DC over 5O (measuring cables resistance included)
Open circuit voltage: 4 Battery not included
Mohm: Insulation resistance (Auto Range)
Test voltage Range Resolution Accuracy Overload
protection
250V 0.001 - 0.100MO 0.001 MO ±10dgt 605V max RMS
0.101 - 3.999 MO 0.001 MO ±( 2.0 %rdg+5dgt)
4.00 - 39.99 MO 0.01 MO
40.0 - 399.9 MO 0.1 MO ±( 5.0 %rdg+5dgt)
400-1000 MO 1 MO
500V 0.001 - 0.250 MO 0.001 MO ±15 dgt
0.251 - 3.999 MO 0.001 MO ±( 2.0 %rdg+5dgt)
4.00 - 39.99 MO 0.01 MO
40.0 - 399.9 MO 0.1 MO
400-2000 MO 1 MO ±( 5.0 %rdg+5dgt)
1000V 0.001 - 0.250 MO 0.001 MO ±15 dgt
0.251 - 3.999 MO
4.00 - 39.99 MO
40.0 - 399.9 MO 0.001 MO
0.01 MO
0.1 MO ±( 2.0 %rdg+5dgt)
400-1000 MO 1 MO ±( 3.0 %rdg+5dgt)
1000-4000 MO 1 MO ±( 5.0 %rdg+10dgt)