Philips investigated the complaint and came to the following conclusion: the philips field service engineer (fse) troubleshot this issue and stated that this was due to an electrical problem in the hospital.It was found that the voltage guard was working with a limited voltage range of 415v - 380v, so having a voltage outside of this range would activate it and turn off the equipment for lack of power.So due to variations on the voltage of the electrical supply, it turned off the system several times, what made the operating personnel restart the system on the electrical board of the hospital.The failure is due to an external cause, namely the hospital power supply.The inhouse electrician could change the voltage range from 415v to 420v, but the philips igt does not recommend an automatic voltage regulator (avr) due to the pulsed load behavior of the allura device.The failure is due to an external cause, namely the hospital power supply, the hospital is considering an uninterruptible power supply (ups) to prevent those issues in the future.
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