PXI-4130 Thermal Protections and Precautions

Both channels of the PXI-4130 are protected against excessive temperatures and shut down in the presence of excessive heat.

During normal sourcing operation on channel 1 (up to 40 W output), the thermal protection should not engage over the rated ambient temperature range of the instrument. Also, sinking power levels within the rated specifications of the instrument should not trigger the thermal protection when the instrument is within the ambient temperature range.

Hot Surface Do not touch the outer shield of the PXI-4130, as it may become very hot during an overtemperature condition.

Thermal protection for channel 1 may also become engaged if the output becomes unstable because of inductive loads in the highest current range. If you are operating the PXI-4130 within the rated specifications and the thermal protection is engaging, investigate whether output instability may be a factor in overtemperature operation of the instrument.