Extech Instruments MG310, Руководство пользователя

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11 MG310-en-GB_V1.0 12/15
Specifications
Function Range Resolution Accuracy
AC Voltage 30 to 600V 1V

(2.0% reading + 3 digits)
AC voltage specified from 5% of range to 100% of range
Continuity
0.00~220

0.01
 
(2.0% reading + 3 digits)
< 20

(approx.) the buzzer will sound
If the circuit is open >220 is displayed
Open ‐ circuit voltage: 5V approx.
Insulation Resistance
Rated voltage 250V Output 500V Output 1000V Output
Range
0.00M~5.5G

0.00M~5.5G

0.00M~5.5G

Open ‐ circuit 250V DC +10% 500V DC +10% 1000V DC +10%
Rated current < 250K
1.00mA~1.10mA
< 500K 1.00mA~1.10mA < 1M 1.00mA~1.10mA
Short ‐ circuit
Current
Approx. 2mA
Accuracy
0.00M

~99.9M
 
(3.0% + 5 digits)
100M

~5.5G
 
(5.0% + 5 digits)
Polarization Index (PI) / Dielectric Absorption Ratio (DAR)
PI measurement 1 minute : 10 minute insulation resistance test
PI Value ≥ 4 4~2 2.0~1.0 ≤ 1.0
Criterion Best Good Warning Bad
DAR measurement
Set one
30 second : 1 minute insulation resistance ratio test
DAR measurement
Set two
15 second : 1 minute insulation resistance ratio test
DAR value ≥ 1.4 1.25~1 ≤ 1.0
Criterion Best Good Bad