Puritan Bennett 840 Troubleshooting | 合法醫療器材資訊網

ExtendedSelfTest(EST)Required—ExtendedSelfTest(EST)Required.First,trysimplypressingtheTESTbuttononthesideoftheventilator.Ifthis ...

Either the LOW BATTERY alarm or INOPERATIVE BATTERY alarm is active. They possibly remain active during charge.

The backup power service (BPS) provides power to the ventilator when the AC power drops below a certain level. The BPS is recharged during normal operation. Ensure that the ventilator itself is not unplugged, and that it has not been unplugged for an extended period of time. If so, make sure the BPS is connected to an operating ventilator for up to eight hours to recharge it.

If the alarm will not go off after these steps have been taken, the BPS battery might need to be replaced. See our BPS battery replacement guide here[1].

The compressor or humidifier seem to be inoperative or unresponsive.

The backup power service (BPS) is intended for short-term power in the event that the ventilator loses AC power. It is not a primary power source, therefore it...