10KV HV Insulation Tester
The SEW 10KV HV Insulation Tester tests insulation resistance to 20TΩ and has 4 test voltages 1000V, 2500V, 5000V and 10000V. Other features include Dielectric Absorption Ratio indication and Polarization Index. Furthermore there is a visual and audio warning of live voltages. This Unit comes complete with Data Communication functionality and Software and truly represents fantastic buying.
2 Lines × 16 Characters LCD
Tests insulation resistance up to 20 TΩ
4 Insulation test voltages: 1000V, 2500V, 5000V, 10000V
AC / DC Voltmeter (30~600V)
Short-circuit current up to 5mA
PI (Polarization Index) indication
DAR (Dielectric Absorption Ratio) indication
Auto-ranging on all insulation ranges
Optical USB to RS-232 data transmission
Well isolated from contact
Well protected from surges
2 built-in optical LEDs for data transfer
Visual and audio warning of external voltage presence (≥30Vac or ≥30Vdc)
Auto-hold function to freeze reading
Adjustable testing duration: 1~30 minutes
Internal memory for data storage
Displays testing duration for insulation measurement
200 measurement results can be saved in memory and recalled on display
Conventional insulation testers are highly susceptible to
damage when testing insulation resistance while voltage
is present on the measured object (whether ACV or DCV).
To safely prevent damage, this new line of testers has the
unique ability to sense voltage on a measured object. If
any voltage is sensed, the tester will automatically switch
to voltage detection mode and display the voltage finding
on the LCD screen. This allows the user to prevent damage
caused by attempting to measure insulation resistance
while voltage is present.
DAR = Dielectric Absorption Ratio
The Dielectric Absorption Ratio is the ratio of the insulation
resistance measured at 1 minute divided by the insulation
resistance measured at 30 seconds. Thirty seconds after
starting a test, the tester will beep, indicating that the
resistance value measured at 30 seconds has been saved.
One minute after starting a test, the tester will beep again,
indicating that the DAR result has been computed. The
display format then changes to display the DAR result.
PI = Polarization Index
The Polarization Index is the ratio of the insulation
resistance measured at 10 minutes divided by the
insulation resistance measured at 1 minute.
One minute after starting a test, the resistance value is
saved and the DAR is displayed. The test then continues,
and after 10 minutes, the tester will beep again, indicating
that the PI result has been computed. The display format
changes to display the PI result.