Isolation fault detector for equipment with high voltage DC circuits
It has a sensor that continuously monitors the isolation resistance between vehicle and HV circuit that is isolated from the vehicle chassis. It outputs "warning signal" and "alarm signal" when it detects deterioration of isolation. We supply this unit as a circuit board for your convenience in layout, but a suitable housing is also available upon request. Measuring cable that allows operation/behavior check makes this unit applicable for research purposes as well.
|Detection method||Alternated constant current method.|
|Target high voltage||420[V]
(Option greater than 420V is available. Contact us for details.)
|Detection resistance range||50 kOhm - 400 kOhm
Two stage detection is possible. (Warning signal, Alarm signal)
|Input power||DC 8V - 30[V]|
|Power consumption||No more than 1.5[W]|
|Sampling period||0.2 second|
|Decision time||4 seconds (at shipping).Minimum of 2 seconds.
Decision time depends on the setting of the noise filter.Contact us for details.
|Operating temperature and humidity range||-30 to 85 degree Celsius, -95% RH|
|Dimensions||L68 × W54 × H20[mm]|