Natus Quantum Amplifier
User & Service Manual
56
9.5. Recording in Ambulatory Mode
The Ambulatory feature is available with Quantum (128/256 channels) as well as with Quantum 64.
Whenever the connection between the Quantum Breakout(s) and NeuroWorks / SleepWorks software is
lost, the Quantum Breakouts will start recording in Ambulatory mode. This is the case in the following
situations:
Breakout unit is disconnected from the Natus Base Unit
Base unit is losing power
LAN or USB connection is lost between the acquisition computer and the Natus Base
Acquisition computer is powered down
The following message is displayed in the NeuroWorks/SleepWorks acquisition application:
NOTE:
While in Ambulatory Mode, the data is stored to the internal memory at a
maximum sampling rate of 512 Hz even if no decimated stream is activated in the
acquisition profile.
NOTE:
In ambulatory mode, an external battery pack with sufficient charge level must
be connected to the Breakout MAIN instead of the cable to the Base unit to provide
power during ambulatory recording.
The Quantum External Battery Pack is considered as the main battery with the internal
battery being used only during swapping to avoid data loss.
Place the external battery in the following location in the pouch, and connect the cable to Breakout MAIN:
